CERTIFIED PERSON STUDY GUIDE SHAFT AND SLOPE

1 / 298
About This Presentation
Title:

CERTIFIED PERSON STUDY GUIDE SHAFT AND SLOPE

Description:

... The frequency content of all vibration signals using either single degree of freedom ... Flame resistant Approved by Bureau of Mines Combustible ... – PowerPoint PPT presentation

Number of Views:17
Avg rating:3.0/5.0
Slides: 299
Provided by: Donal260

less

Transcript and Presenter's Notes

Title: CERTIFIED PERSON STUDY GUIDE SHAFT AND SLOPE


1
CERTIFIED PERSON STUDY GUIDE SHAFT AND SLOPE
2
Technical Guidance 580-2200-011 Sinking of Shafts
and Slopes for Underground Mines
3
Effective Date October 1, 2005
4
Request in writing
  • 30 CFR Part 77 Subpart T (Underground Coal
    Mines-Health and Safety Standards-Slope and Shaft
    Sinking).

5
Shaft and Slope Construction Supervisor
  • 21 years of age
  • 2 years practical experience sinking of slopes
    and shafts
  • 1 year practical experience sinking of slopes and
    shafts
  • Bachelor of Science Degree in mining engineering
  • Coal mine foreman or Assistant mine foreman
    certificate
  • Industrial mineral underground mine foreman
    certificate
  • An acceptable certificate of qualification issued
    by another state
  • Trained in the detection of oxygen and explosive
    gases / mechanics of all gas detection devices
  • Passed a written test with a score of 80

6
Blaster
  • Possess a license issued pursuant to Chapter 210

7
Pennsylvania code
8
Chapter 210
9
Chapter 210.11
  • 210.11 Definitions
  • Blaster
  • Blaster Learner
  • Blaster License
  • Demolition Blasting
  • Person

10
210.13 General
  • 210.13 (a) A person may not detonate explosives
    or supervise blasting activities unless the
    person has obtained a blaster's license
  • 210.13(c) Upon request, a blaster shall exhibit a
    blasters license
  • Authorized Department Representative
  • Blaster's employer
  • Police Officer
  • 210.13(d) Blaster's license is not transferable

11
210.14 Eligibility requirements
12
BLASTERS LICENSE
  • 21 YRS OLD
  • blaster learner
  • 1YRS PRACTICAL BLASTER EXPERIENCE SHAFT AND SLOPE
  • AND TAKEN DEP CLASS ON EXPLOSIVES
  • AND PASSED DEP EXAMINATION FOR BLASTERS 80
    PERCENT SCORE

13
210.15 License Application
14
Department forms
  • 50 check payable to the Commonwealth of
    Pennsylvania
  • Submitted 2 week prior to test

15
Notarized statement
  • Experience as blaster leaner
  • Competence

16
210.17 Issuance and renewal of licenses
  • Blasters license will be issued for 3 years
  • Within the 3 year period have had 8 Hours CEU in
    Department approved Blasting and Safety courses
  • Submit a copy of the 8 hr CEU Certificate
  • Submit a 30 check payable to the Commonwealth
  • Renewed within 1 year of its expiration date

17
210.18 Out of State Blaster License
  • Another States licensing program provides
    training on the storage, handling and use of
    explosives
  • Examination that is equivalent to Chapter 210
  • Copies of the other state's explosives training
    and exam materials
  • Subtopic
  • Proof of License

18
210.19 Suspension, Modification and Revocation
  • The Department may suspend, modify or revoke a
    blaster's license for violations of Chapter 210 /
    Chapter 211

19
ATF Background Check Sec. 555.33
20
Safe Explosives Act
  • Effective date November 25, 2002
  • Prohibited Persons Categories
  • Aliens
  • Persons who have dishonorably discharged from the
    military
  • Citizens of the US who have renounced their
    citizenship
  • Felons
  • Fugitives
  • Users of, and persons addicted to, controlled
    substances
  • Persons who have been adjudicated metal
    defectives or committed to mental institutions
  • All prohibited persons are permitted to apply to
    the BATF for relief from Federal explosives
    disabilities

21
Samples
  • When requested by ATF, manufacturers and
    importers of explosives must submit samples, as
    well as information on their chemical composition

22
Intrastate Permit
  • limited permit
  • farmers or construction companies that acquire
    and use explosives infrequently and within their
    State of residence
  • will allow the purchaser to receive explosive
    materials from an in-State explosives licensee or
    permittee on no more than six (6) occasions
    during the period of the permit
  • Will be valid for one year

23
Required Industry Information
  • Responsible persons are required to submit to ATF
    identifying information, fingerprints, and
    photographs
  • Employee of licensees and permittees who will be
    possessing explosive materials must submit
    identifying information
  • ATF must issue letters of clearance for those
    responsible persons and possessor employees who
    are not prohibited from possessing explosives
  • Responsible person or employee subject o an
    explosives prohibition, ATF must provide
    information on the appeal process

24
Inspections
  • ATF will have to physically inspect all ATF
    licensees and permittees at least once every
    three calendar years
  • User permits and licenses, ATF must verify by
    visual inspection that new applicants and renewal
    applicants have places of storage for explosive
    materials

25
chapter 211
26
211.101 Definitions
  • access point
  • air blast
  • blast site
  • blast area
  • barricade
  • misfire
  • blaster
  • magazine
  • inner perimeter security
  • outer perimeter security

27
211.101 Definitions (2)
  • scaled distance
  • scaled table of distance
  • required distance for seismograph readings

28
211.112 Magazine license and fees
  • 211.112(a) Shall store explosives in a magazine
    licensed by the Department
  • A person may not construct, install or modify a
    magazine
  • 211.112(b) magazine license specifications
  • types of explosives
  • quantities of explosives
  • conditions to comply with other standards
  • 211.112(c) license expires DEC 31 each year

29
211.113 Application Content
  • Applicant's name, address and telephone number
  • Contact person
  • Types and quantities of explosives
  • Map, plan or sketch of the site location showing
  • nearest buildings
  • nearest railways
  • nearest highways
  • existing barricades
  • proposed barricades
  • Plan showing the design and specifications of the
    magazine

30
211.113 Application Content (2)
  • Plan showing the design and specifications,
    dimensions and locations of all security measures
  • The latitude and longitude of outdoor magazines
  • except Type 3
  • The latitude and longitude of indoor magazines
    containing high explosives

31
211.114 Displaying the license
  • Magazine license or legible copy shall be
    conspicuously displayed
  • Shall be displayed inside the magazine or
    adjacent to the magazine

32
211.115 Explosive storage
33
27 CFR Part 555 Subpart K (relating to storage),
are incorporated herein by reference.
34
211.115(a1) Classify explosives
35
211.115(a2)Determine which class of explosive may
be stored in each type of magazine
36
211.115(a3)Determine quantity of explosive stored
37
211.115(a-4) Determine construction standards
38
211.115(a5) Site the magazine
39
211.115(a6) Specify maintenance and housekeeping
40
211.115(a7) Grant variances
41
Security measures (211.115.d)
42
211.115(d1) Each magazine site shall be inspected
at least daily at approximately 24-hour intervals
43
Equipped with electronic intrusion detection
devices
44
Inspected daily (24 hour intervals)
45
magazines containing no explosive are not
required to be inspected
  • Must reflect date last explosives were removed

46
Each inspection
  • Include the magazine
  • Access points and perimeter security
  • Inspection can be in person or electronically by
    remote cameras
  • Record of Inspection
  • Maintained 3 years
  • Name of person
  • Date and time inspection began /ended
  • Remarks
  • Action taken on problems
  • Dates no inspection / no explosives

47
Magazine and outer perimeter gates at the site
are equipped with electronic intrusion detection
devices
48
Outer perimeter
49
Obstructs, wheeled vehicles
50
surround the entire magazine site
  • 25 feet away from the exterior of any magazine
  • 25 feet away from the inner perimeter security
    measures

51
Subsection (g)
52
Sufficient number of personnel assigned to
physically insect each magazine once every hour
  • All persons with communications capable of
    providing direct verbal communications with
    Police Dept. or another person capable of
    contacting Police

53
Closed Circuit Television (CCTV)
  • Continuously monitoring the entire outer
    perimeter
  • Any portion of the outer perimeter that is not
    protected by another measure
  • Images shall be recorded and maintained at least
    until magazine integrity is confirmed
  • Latest output images of all CCTV cameras shall be
    viewed at least once every hour by a person
    having direct verbal communications

54
Electronic intrusion detection devices
  • Microwave sensors
  • Seismic detectors
  • Vehicle detectors
  • Alarms or infrared motion detectors
  • Zone of detection shall encompass entire outer
    perimeter
  • All systems shall provide initial notification of
    an alert within 15 minutes of an event and onsite
    presence in response to an alert within 1 hour
  • All systems shall have backup power and provide
    an alert

55
Earthen Barrier
  • 7 feet in height
  • Constructed to obstruct access, to the greatest
    extent possible, by wheeled vehicles
  • Made of loose soils the earthen barrier shall be
    compacted
  • Vegetated

56
Boulder Barrier
  • Boulders shall be of a size and weight to deter,
    to the greatest extent possible, defeat of the
    barrier by wheeled vehicles

57
Highwall Barrier
  • minimum of 7 feet in height
  • Face or slopes are sufficient to obstruct, to the
    greatest extent possible, unauthorized access by
    wheeled vehicles

58
Natural Barrier
  • Composed of natural terrain features which are
    impassable, to the greatest extent possible, to
    wheeled vehicles

59
Fencing Systems
  • Constructed of members that of sufficient size,
    strength and anchorage
  • To deter, to the greatest extent possible, the
    fencing system from being bent over, broken
    through or uprooted by a wheeled vehicle

60
Inner Barrier 211.115
61
6 feet away from exterior of magazine (211.115-4 )
62
25 feet inside and away from the outer perimeter
security (211.115-4)
63
Inner perimeter security can be met by measures
approved by the Department as provided in
subsection (g)
64
Personal assigned to physically inspect each
magazine
  • Once every hour
  • Equipped with communications device capable of
    providing direct verbal communications
  • Police Department
  • Another person with the ability to contact the
    Police Department

65
CCTV
  • Images shall be recorded and maintained at least
    until magazine integrity is confirmed during the
    next required site inspection
  • The latest images of all CCTV cameras shall be
    viewed once every hour by persons having direct
    verbal communication with the Police Department

66
Electronic intrusion devices
  • Shall be installed on each magazine containing
    high explosives or detonators
  • Installed on all magazine doors
  • Infrared motion detectors and other similar
    devices shall be installed on the interior of
    each magazine

67
Microwave sensors, seismic sensors
  • Zone of detection shall encompass the inner
    perimeter, or any portion of the inner perimeter
    that is not protected by another measure

68
All systems
  • Shall have the capability of providing initial
    notification of an alert within 15 minutes of an
    event
  • An on site presence in response to an alert with
    1 hour
  • Backup power supply
  • Shall provide and alert in the event of power
    loss or a compromise of the system integrity

69
Highwall
  • minimum of 20 feet in height
  • face or slopes are sufficient to obstruct, to the
    greatest extent possible, access by unauthorized
    persons.

70
Fence construction
  • minimum of 9 gauge chain link fencing
  • maximum 2-inch mesh that is kept in a condition
    which maintains its original functionality.
  • Buried at least 1 foot at the base
  • Or equipped with a minimum 1.66 inch outside
    diameter bottom rail
  • Minimum height of 8 feet above the ground
  • Top rail with a minimum 1.66 inch outside
    diameter
  • Firmly anchored posts 10 feet or less on center
  • End, corner and pull posts shall have a minimum
    outside diameter of 2.875 inches if round or
    2.5-inch square
  • Intermediate posts shall have a minimum outside
    diameter of 2.375 inches if round or 2.25-inche
    C-Section.
  • Posts shall be set in concrete at a minimum depth
    of 33 inches.
  • Post holes shall be a minimum of 12 inches in
    diameter and completely filled with concrete

71
Fence construction (2)
  • Outriggers at the top
  • concertina razor wire attached
  • Concertina razor wire attached on the inside at
    the bottom
  • Gates
  • as many gates as necessary to provide for the
    safe exit in event of an emergency
  • Vegetation
  • Trimmed or suppressed to a distance of 6 feet
    from each side of the fence

72
Inner perimeter security gates
73
Constructed at all access points
  • firmly anchored posts
  • good condition
  • Padlocked whenever the site is unoccupied

74
Gates shall be constructed of a minimum of 9
gauge chain link fencing with a maximum 2-inch
mesh
75
Gate frame members minimum outside diameter of
1.9 inches if round or 2.0-inch if square
76
Gate Posts with a minimum 6.625-inch outside
diameter
77
Posts set in concrete at a minimum depth of 42
inches
78
Postholes shall be a minimum of 16 inches in
diameter and filled with concrete
79
Outriggers at the top with concertina razor wire
80
Two Locks
  • Separate hasps and staples
  • Hood of at least 1/4-inch thick steel
  • must prevent sawing or lever-cutting on the
    locks, hasps, and staples
  • Each lock shall have at least five tumblers
  • case-hardened shackle of at least 3/8 inches in
    diameter
  • Lock and chain used to secure gate
  • minimum specification of the chain shall be 3/8
    inch Grade 70, Transport

81
Outer perimeter security gates
82
Constructed at all access points
83
Deter to the greatest extent possible, defeat of
the gate by wheeled vehicles
84
firmly anchored posts
  • Guideposts shall be a minimum 6.625-inch outside
    diameter
  • Posts set in concrete at a minimum depth of 42
    inches
  • Postholes shall be a minimum of 16 inches in
    diameter
  • filled with concrete
  • Department may approve, in writing, least
    equivalent security

85
good condition
86
Padlocked whenever the site is unoccupied
87
Two Locks
  • Separate hasps and staples
  • Hood of at least 1/4-inch thick steel
  • must prevent sawing or lever-cutting on the
    locks, hasps, and staples
  • Each lock shall have at least five tumblers
  • case-hardened shackle of at least 3/8 inches in
    diameter
  • Lock and chain used to secure gate
  • minimum specification of the chain shall be 3/8
    inch Grade 70, Transport

88
"No Trespassing" signs
89
Placed around outer perimeter of site
90
Shall be spaced so that, except for corners,
adjacent signs are visible
91
Warning signs shall be placed at all access
points
  • Shall provide notice of private property
  • No trespassing
  • Providing a notice substantially conforming to
    the following "Danger, never fight explosives
    fires, explosives are stored on this site"
  • to warn first responders and public
  • Shall provide an emergency contact phone number

92
Signs shall be well maintained
93
Signs shall be placed so that a bullet passing
directly through the sign will not impact a
magazine
94
Signs may not be obscured by vegetation or other
obstructions
95
Constructed of a durable, weather-resistant
material
  • Letters and numbers shall be a minimum height of
    2 inches

96
In addition to outer perimeter security
97
All portable magazines being used as stationary
magazines
  • Having an a volume of less than 3 cubic yards
  • shall be immobilized by fastening the magazine
    securely to the earth or terrain
  • sufficient to prevent displacement of the
    magazine by wheeled vehicle

98
Requirements may be satisfied by any single layer
of perimeter security measures that obstructs
  • unauthorized access to the magazine wheeled
    vehicles
  • Access by unauthorized persons
  • 25 feet away from the exterior of any magazine
  • 6 feet from any magazine

99
Magazines shall be constructed according to the
construction standards found in 27 CFR Part555,
Subpart K (relating to storage) with the
following additions
100
Mobile type 5 magazines being used as stationary
magazines for more than 1 year must be located
within the outer perimeter security
101
Immobilized in accordance with 27 CFR 555.211
(relating to construction of type 5 magazines
102
Fastened securely to earth or terrain feature to
prevent movement of the magazine by a motor
vehicle
103
Motor vehicles used to transport bulk blasting
agents that are left unattended at a magazine site
104
Must have two department approved methods of
disabling the vehicles to render tem effectively
immobilized
105
Vehicles must be kept within the outer perimeter
security
106
Disabling methods may include
  • Steering locking device
  • Pedal locking device
  • Fuel or electrical system disablers
  • Other equivalent disabling measures approved by
    the Department
  • Systems of pumps or tanks, or both, used to
    store, mix or dispense bulk blasting agents at
    magazine site
  • Shall be equipped with locks
  • Shall be constructed to prevent the unauthorized
    removal of blasting agent from the system

107
Person who stores explosive materials
108
Shall notify both the local police having
jurisdiction and the Pennsylvania State Police
  • Notification made in the manner of and in
    addition to the notification requirements in 27
    CFR 555.201 (f) (relating to general)

109
Shall immediately notify the Department,
Pennsylvania State Police, and local Police
  • Evidence is discovered of Break-in or theft at
    the magazine
  • an attempted theft or break-in has occurred
  • Security measures required by this section have
    been breached or disabled or disabled or
    partially breached or disabled
  • Short-term partial breaches of security of less
    than 48-hour duration need not be reported under
    this subsection if all the following apply
  • Partial breach was due to equipment failure or
    accidental or natural causes
  • An account of the partial breach was recorded
    under paragraph 1
  • Immediate measures are being taken to repair or
    replace the partial breach

110
Notification to State and Local police are in
addition to any notification by agencies of the
United States
  • Immediately upon June 18, 2005, the inspection
    and notification requirements shall be
    implemented
  • Within 180 days of approval of the plan outer or
    inner perimeter security measure requirements
    shall be implemented
  • Within 360 days of approval of the required plan
    the remaining perimeter security measures
    required

111
Unauthorized persons exhibiting suspicious
behavior are observed in the vicinity of the
magazine
112
Inventory records indicate that explosive
material is missing and unaccounted for
113
Permissible explosives / Shot -firing units
77.1909
114
Evacuate personal from shaft prior to firing shot
  • ALL PLANS SUBMITTED TO MSHA WILL BE SUBMITTED TO
    THE STATE

115
Chapter 211 Incorporates Sub Part k
116
211.122 Permit to sell explosives
  • Identify the applicant's name, address, telephone
    number and type of business
  • Identify a contact person
  • Specify type of explosives to be sold
  • Specify the type of explosives to be sold
  • State whether the applicant will purchase or
    manufacture the explosives to be sold
  • Permits to sell explosives are not transferable
  • Permits to sell explosives expire on April 30

117
211.123 Permits to purchase explosives
  • Identify the applicant's name, address, telephone
    number and type of business
  • Identify a contact person, including name,
    address, telephone number and type of business
  • Identify the location and license number of the
    magazine to be used for storing the explosives
  • Specify the type of explosives that will be
    purchased
  • Specify whether the explosives are being
    purchased for sale or use by the permittee

118
211.123 Permits to purchase explosives (2)
  • Permits to purchase explosives are not
    transferable
  • Permits to purchase explosives expire on April 30
    of each year

119
211.124 Blasting Activity Permit
  • Blast-in-charge
  • Supervise the blasting activity
  • Two people present to fire blast
  • Blaster-In-Charge and up to Six Assistants
  • Operating Equipment
  • Within 50 feet 211.154
  • Blaster shall prepare application for blasting
    activity report
  • Applicant's name, address, telephone number, type
    business
  • Contact person / name, title, telephone number
  • Identity of subcontractor who will perform the
    blasting activity
  • Type of explosive used
  • Maximum amount of explosives that will be
    detonated per delay interval of less than 8
    milliseconds
  • Maximum amount of explosives that will be
    detonated in any one blast
  • Map indicating the location where the explosives
    will be used
  • Purpose for which the explosives will be used
  • Location and license number of magazine that will
    be used to store the explosives
  • Description of how the monitoring requlirements
    will be satisfied
  • 3rd part general liability insurance in the
    amount of 300,000 or greater per occurrence.
  • anticipated duration of blasting activity

120
211.125 Blasting permit-by- rule
  • Blasts are designed and performed for a scaled
    distance of 90 or greater
  • No more than 15 pound of explosives are detonated
    per delay interval of less than 8 milliseconds
  • Total charge weight per blast does not exceed 150
    pounds
  • Person notifies the Department
  • verbally
  • in writing

121
211.131 Sales Record
  • Shall keep accurate record of every sale of
    explosives for 3 years
  • Shall identify the purchaser's name and address
  • Department purchase permit number
  • Date of the sale
  • Amount and types of explosives

122
211.132 Purchase records
  • Shall keep a record of all purchases of
    explosives for 3 years
  • Records shall identify the date
  • types and amounts of explosives purchased
  • name and address of the seller

123
211.133 Blast reports 211.133
124
Blaster-In-Charge
  • Shall prepare a report for each blast
  • Sufficient information to reconstruct the
    conditions and events surrounding a blast
  • Maintained 3 years

125
Location of blast and monitor readings
126
Name of blasting activity permittee
127
Blasting activity permit / mining permit number
128
Date and time of blast
129
Printed name , signature and license number
Blaster-In-Charge
130
Type of material blasted
131
Sketch showing
  • number of holes
  • burden
  • pattern dimensions
  • point of initiation

132
Diameter / Depth of blast holes
133
Height / length of stemming
134
Types of explosives used
  • Arrangement in blast holes

135
Total weight in pounds of explosives and primer
cartridge
136
The maximum weight in pounds of explosives
detonated per delay period of less than 8
milliseconds
137
Type of circuit, if electric was used
138
Direction / Distance in feet from blast site to
nearest building
139
A description of the nearest building not owned
based on local landmarks
140
Scaled Distance
141
Weather Conditions
142
Direction from which the wind was coming
143
Measures taken to control flyrock (whether or not
mats were used)
144
Total quantity and type of detonators and delays
used
145
Number of individuals on blast crew
146
Monitoring records shall be made part of blast
report within 7 days
147
Misfire
148
211.141 Transportation of Explosives
149
Fueling
150
Repairs
151
Fire Extinguishers
152
No Smoking
  • 100 feet

153
Loading / Unloading
154
IME 22 Separation
  • Non sparking tools
  • Wooden bed on vehicle
  • Separated from tools

155
State Inspected Vehicles
156
Vehicle Exhaust
  • avoid hot gases and sparks
  • in tack

157
Fire Extinguisher
  • 10 BC or more
  • Readily Accessible

158
Engine Off / Tires Chocked
159
No Smoking within 100 ft
  • NO SMOKING signs posted while parked

160
DOT Placards
161
Immediately
162
Less than 2000 pounds of explosives
  • Open Body
  • Sides and ends high enough
  • fire resistant tarpaulin
  • magazine attached to vehicle

163
More than 2000 pounds of explosives
  • Closed Body

164
No firearms, combustible materials
165
Damaged or Deteriorated explosives
  • Manufactures Recommendations

166
211.151 Prevention of Damage
167
flyrock or damage to real property
  • Blaster-in-charge
  • report to Department within 4 hours

168
Air Blast
  • 133 dbl peak

169
Scaled Distance
  • 90

170
Peak Particle Velocity
  • 2 inches per second

171
211.152 Control of Noxious Gases
  • Health and Safety of individuals
  • Evacuate people
  • interrupt path of gas flow
  • Vent gases to atmosphere

172
211.153 Handling Explosives
173
Nonferrous, non sparking tools
174
No Smoking
  • within 100 ft of where explosives are used or
    stored

175
Damaged or Deteriorated Explosives
  • destroy as per Manufacturer recommendations

176
Cast Boosters
  • detonators shall not be forced into cartridges of
    explosives or cast boosters
  • detonators shall be completely inserted into the
    cartridge of explosive
  • detonators shall be completely inserted into
    detonator well of a cast booster

177
licensed magazine
  • Stored
  • Explosives may not be left unattended
  • Kept under control and supervision of Permittee

178
Loaded Blast
  • loaded blast shall always be under the continuous
    observation of the blaster-in-charge or a
    designee

179
Blast Site
  • No shooting or carrying of ammunition or firearms

180
Electric Lines
  • test shall be made for stray electrical current
  • electric blasting caps may not be used in excess
    of 50 milliamperes

181
Packages of Explosives
  • shall not be thrown or slid along floor, over
    other packages, and handled roughly
  • Non-sparking tools

182
Electrical Storms
  • Area clear of all people
  • Guards posted to all approaches to prevent
    trespass

183
Explosives
  • damaged and deteriorated shall not be used
  • May not be abandoned

184
211.154 Preparing the Blast
185
211.154(a) Blaster-in-charge
186
211.154(a) Must be designated by Blasting
Activity Permittee
187
211.154 (a)Shall control and supervise the
blasting activities
188
211.154 (a) Responsible for all effects of the
blast
189
211.154(c) May not prepare or detonate a blast
unless another person is present, ready to render
assistant in the event of an accident or injury
190
211.154(d) Shall make every effort to determine
the condition of the material to be blasted from
the individual who drilled the blast holes or
from the drill log.
191
211.154(e) Only blaster in charge, other
blasters, and up to six assistants per blaster
may be at a blast site once loading of blast
holes begins
192
211.154(f) While loading a blast hole the
following shall be followed
  • 211.154(f-1) Ferrous material may not be used
  • This includes the use of steel casings, ferrous
    tools and retrieving equipment
  • 211.154(f-2) Nonsparking tamping sticks
  • 211.154(f-3) Pneumatic loading device, every
    precaution shall be taken to prevent an static
    electricity
  • Loading operation shall be stopped immediately if
    static electricity or stray electric currents are
    detected

193
211.154(f) While loading a blast hole the
following shall be followed (2)
  • 211.154(f-4) Blast holes shall be carefully
    checked for obstructions
  • Explosives may not be forced past and obstruction
    in blast hole
  • 211.154(f-5) Each blast hole shall be logged and
    recorded on the blast report
  • 211.154(f-6) Blast hole containing loose
    dynamite shall be stemmed (not tamped)
  • 211.154(f-7) The Department may specify the type
    and amount of stemming

194
211.154(g) Before connecting blast holes, all
activity within the blast area shall cease
  • All nonessential persons shall retreat to a safe
    place
  • The blaster-in-charge shall determine the blast
    area

195
211.154(h) Primers shall be prepared only at the
hole to be loaded
  • Primers shall be prepared only at the hole to be
    loaded,immediately prior to loading
  • Components of the primer are to be kept separated
    at the collar of the blast hole
  • The primer may not be slit, dropped, deformed or
    carelessly handled and tamped or forced into
    blast hole

196
211.154(I) Upon completing the loading of a blast
hole
  • Wood, paper or other materials used to pack
    explosives shall be inspected for explosives and
    removed to and isolated area
  • materials may be burned after the blast has been
    fired
  • Persons may not be within 100 feet of burning
    materials

197
211.154(j) Measures shall be taken to reduce the
chance of flyrock
  • Use of blasting mats or other protective devices
  • Blasting to an open, vertical face, checking the
    face for loose, hanging material or faults prior
    to loading the blast holes

198
211.154(k) Only enough explosives for the blast
may be brought to the blast site
  • Surplus explosives may not be stored in the blast
    site

199
211.154(l) Blast holes shall be checked to ensure
that it is cool and does not contain any hot
material or smoldering material from drilling hole
200
211.154(m) Abrasive or sharp stemming shall be
avoided
201
211.154(n) Blasting activities may not be
conducted within 800 feet of a public roadway
  • Precautionary measures including stopping or
    slowing of traffic and posting signs

202
211.154(b) Equipment
  • Only equipment necessary loading Blast holes
    shall operate within 50 ft of the blast site

203
211.155 Preblast measures
204
Prior to detonating a blast, the
blaster-in-charge shall
205
211.155(1) Ensure that all excess explosives have
been removed from the blast area
206
211.155(2) Inspect the blast site to ensure that
connections are proper
207
211.155 (3) Ensure that the blast area is cleared
an safeguarded
208
211.155(4) In addition to warning signal, notify
all persons
209
211.155(5) Ensure that precautions are in place
to protect the pubic on public roads
210
211.155(6) At least 1 minute but no more than 2
minutes prior to detonation
  • Sound a warning signal of three blasts
  • each lasting 5 seconds
  • Warning signal shall be of sufficient power to
    heard 1,000 feet from the blast site

211
211.156 Detonating the Blast
  • 211.156(a) Blast may be detonated only between
    sunrise and sunset
  • Unless the Department authorizes
  • 211.156(b) Only the blaster-in-charge may
    detonate a blast

212
211.157 Postblast measures
213
211.157(a) After a blast has been detonated, no
one may return to the blast area until all smoke
and fumes have dissipated
214
211.157(b) Blaster-in-charge shall return to and
inspect the blast site to ensure it is safe
215
211.157(c) the blaster-in-charge shall sound an
all-clear signal
  • One long blast lasting 10 seconds
  • All-clear signal shall be heard 1,000 feet from
    the blast site

216
211.157(d) Blaster-in-charge shall determine if a
misfire has occurred
  • Shall take actions necessary to render the blast
    site safe
  • The blast site shall be made safe before drilling
    or muck removal begins

217
211.157(e) Blaster-in-charge suspects that
undetonated ammonium nitrate/fuel mixture remains
  • The muck pile shall be wetted down with water
    before any digging
  • Special attention shall be given to primers,
    other explosives or detonators are present in the
    muck pile

218
211.157(f) Blaster-in-charge shall immediately
complete the blast report
219
211.157(g) Blaster-in-charge shall notify the
Department within 24 hours of a misfire
  • A copy of the blast report shall be forwarded to
    the Department

220
211.158 Mudcapping
  • 211.158(a) Mudcapping is allowed only when the
    blaster-in-charge determines that drilling would
    not be safe
  • No more than 10 pounds of explosives shall be
    used for a blast

221
211.159 Electric detonation
222
211.159(a) Electric blasting caps shall be tested
for continuity with a blaster's galvanometer or
Blaster's Multimeter
  • 211.159(a-1) Before the primers are made up
  • 211.159(a-2)After the blast hole has been loaded
    but prior to stemming
  • 211.159(a-3) As the final connecting of the
    circuit progresses

223
211.159(b) When shunt is removed from electric
blasting cap leg wires, the exposed wires shall
be reshunted
224
211.159(c) Electric blasting caps may not be
employed near overhead electric lines
225
211.159(d) Blasting caps may not be reused if the
leg wires are broken
226
211.159(e) Leg wires shall extend above the top
of the blast hole
  • Wire connections and splices are not allowed in
    the blast hole

227
211.159(f) Only solid wire shall be used in a
blasting circuit
  • Stranded wire is prohibited

228
211.159(g) Electric detonation near public roads
  • Signs shall be erected at least 500 feet from the
    blast area
  • Reading "Blast area -shut off all two -way
    radios"

229
211.159(h) Permissible blasting machines shall be
used to detonate the blast
230
211.159(i) Blasting circuit shall remain shunted
until the time for detonation
  • Unless the circuit is being tested
  • connections are being made

231
211.159(j) All blasting machines shall be
calibrated every 30 days by procedures
recommended by the manufacturer or supplier
232
211.159(k) Blaster-in-charge shall determine that
there is adequate current to properly energize
the detonators
233
211.160 Nonelectric detonation
  • Nonelectric initiation systems shall be checked
    and tested in accordance with manufacturer
    recommendations

234
211.160 Detonating cords
235
211.161(a) Shall be cut from the supply roll
immediately after placement in the blast hole
236
A sufficient length of downlines shall be left at
the top of the blast ole for connections to trunk
lines
  • The supply roll shall be immediately removed from
    the site
  • Scrap pieces of detonating cord shall be
    destroyed after connections are made

237
211.161(b) Trunk line shall be covered with at
least 12 inches of earth or sand
238
211.161(c) Detonating cord may not be spliced if
the splice will fall within a blast hole
239
211.162 Safety Fuse
  • 211.162(a) Shall be long enough to provide a burn
    time of 120 seconds or longer
  • 211.162(b) Blaster-in-charge shall conduct a test
    burn
  • Test burn will utilize at least a 12 inch section
    of fuse
  • 211.162(c) A proper crimping tool shall be used
    to crimp a blasting cap to a safety fuse
  • A blasting cap may not be attached to a safety
    fuse in or within 10 feet of a magazine

240
211.171General provisions for monitoring
  • 211.171(a) Scaled Distance of a blast is 90 or
    numerically less at the closest building not
    owned or leased
  • 211.171(b) Blasting without monitoring
  • 211.171(c) A ground vibration and airblast record
    of each blast shall be made part of the blast
    report
  • 211.171(d) The trigger for ground vibration shall
    be set at a particle velocity of no more than .25
    inches per second

241
211.171General provisions for monitoring (2)
  • 211.171(e) A printout from the instrument shall
    be attached to the blast report
  • the printout shall provide date and time when
    instrument was turned on and off, set trigger
    levels

242
211.172 Monitoring instruments
243
211.172 Monitoring instrument shall provide a
permanent record of each blast
  • 211.172(1) A monitoring instrument for recording
    ground vibration shall have
  • Frequency range of 2 Hz to 100 Hz
  • Particle velocity range of 0.2 to4.0 inches per
    second or greater
  • An internal dynamic calibration system
  • 211.172(2) A monitoring instrument used to record
    airblast shall have
  • A lower frequency limit of 0.1 ,2.0 or 6.0 HZ
  • An upper end flat-frequency response of at least
    200 Hz
  • A dynamic range that, at a minimum, extends from
    106 to 142 dbl

244
211.172 Monitoring instrument shall provide a
permanent record of each blast (2)
  • 211.172(3) Shall be calibrated annually
  • Also when repairs are made
  • Calibration procedures and documentation of
    calibration shall be made available for review by
    the Department
  • 211.172(4) Nonalterable calibration sticker
    affixed to the instrument

245
211.173 Monitoring records
246
211.173(a) Everyone using the monitoring
instrument shall be trained
  • A record of the training is to be maintained and
    available for review by the Department

247
211.173(b) Monitoring records at a minimum shall
contain
  • 211.173(b-1)Calibration pulse on each of the
    mutually-perpendicular ground vibration traces
  • 211.173(b-2) The time history of particle
    velocities of three mutually perpendicular round
    vibration traces and one air-overpressure trace,
    including time base, amplitude scales and peak
    values for all traces
  • 211.173(b-3) The results of a field calibration
    test for each channel

248
211.173(b) Monitoring records at a minimum shall
contain (2)
  • 211.173(b-4) The frequency content of all
    vibration signals using either single degree of
    freedom (SDF) response spectrum or half-cycle
    zero-crossing analysis method
  • 211.173(b-5) Frequency versus particle velocity
    plots
  • 211.173(b-6) The name and signature of the
    individual taking the recording
  • 211.173(b-7) The location of the monitoring
    instrument, date and time of the recording

249
211.173(b) Monitoring records at a minimum shall
contain (3)
  • 211.173(b-8) The last calibration date of the
    monitoring instrument

250
211.173(c) If the Department questions the
validity of a ground vibration or airblast record
or the interpretation of the record, the
Department may require
  • Ground vibration or airblast recording to be
    analyzed or certified by an independent,
    qualified consultant
  • It shall be performed and included with the blast
    report within 30 days

251
Title 25 Chapter 87
252
Public highways and entrances to the operation
  • Barricade / Guard
  • If highway is within 1,000 feet of blast to be
    shot

253
30 CFR PART 77 SUBPART T
254
Top man on Duty
255
check in and out system
256
Examinations 77.1901
  • Pre shift - 90 minutes prior to start of shift
  • Certified Person
  • On shift while men are at work
  • Certified Person
  • Before and after Blasting
  • Certified Person

257
all exams must include 77.1901
258
(No Transcript)
259
Continuous Monitoring of Atmosphere
260
Check Coping
261
  • Air Reading at Fan
  • Magnahelic Reading

262
  • Check Service Lines

263
check water ring gas test
264
examine ribs below concrete
265
make gas test around ribs
266
make gas tests at bottom
  • methane
  • oxygen
  • carbon monoxide

267
Correct all hazards found on pre shift / on shift
exam
268
Record keeping
  • air reading (CFM)(Location)
  • gas readings
  • CH4 and O2 deficiency CO approved devices
    77.1901-1
  • violations or hazards observed
  • miss fires
  • corrective actions taken
  • date / time
  • signature

269
surface area exam 77.1901
  • tripping and stumbling obstacles
  • general housekeeping
  • illumination
  • walk through compressor house
  • note temperature
  • airline leaks
  • unusual smells
  • oil spillage
  • Subtopic
  • record examination

270
Excessive gas encountered 77.1901
  • 1.0 Methane
  • Make changes or adjustment to ventilation
  • Do not start any equipment
  • De-energize power
  • Re-examine area
  • 50 PPM Carbon Monoxide
  • Make changes or adjustment to ventilation
  • Re-examine area
  • 19.5 Oxygen

271
Excessive gas encountered 77.1901 (2)
  • 1.5 Methane
  • Remove all personal
  • De-energize equipment
  • Ventilate
  • Re-examine area

272
Diesel 77.1902 - 1
  • Permissible Part 36

273
Hoists 77.1903
274
Communications 77.1904
  • Two independent means of signaling
  • one audible
  • signal codes posted
  • communications tested daily

275
Hoist Construction 77.1907
  • Hooks shall be self-closing

276
Daily Inspections 77. 1906
  • Insure daily inspections are completed and signed
  • Records to be maintained for 1Year

277
Hoist Installation 77.1908
278
Hoist rope suspended from substantial housing
279
Shaft guide and guide attachments installed
77.1908-c
280
emergency escape 77.1908-f
  • hoist
  • Ladder

281
embark / disembark landing over shaft 77.1908-e
282
Hoist bucket
  • Shall not ride rim or loaded bucket 77.1908-g
  • Mantrip number of people77.1908-h
  • Speed 500 fpm / 200fpm within100 ft of stop
  • speed posted for hoistman
  • hoist stopped within 15 ft. of landing
  • all bucket shall be trimmed

283
Wire Ropes 77.1430
284
visual examination 77.1433
  • every 14 calendar days
  • broken wires, stress points, distortions

285
End attachment retermination 77.1437
286
Drum End Attachment 77.1436
  • attached securely to drum
  • minimum of three full turns of wire rope on drum

287
Load end attachments 77.1435
288
Retirement criteria 77.1434
  • 6 wear
  • Broken wires
  • Subtopic

289
Minimum rope strength 77.1431
290
Initial measurement 77.1432
  • After initial stretch - before wear is shown
  • Baseline measurement
  • three measurements
  • Records shall be retained with cable

291
Hoistman Qualification
292
Ventilation 77.1911
293
Mechanical ventilation
294
Installation
  • On Surface
  • Fireproof
  • Design to permit air reversal
  • Equipped with automatic signal device
  • Offset 15 feet
  • duct work grounded to prevent electrical
  • Duct work extended as close a possible to
    ventilate properly
  • qualified person designated by the operator to
    maintain ventilation system
  • Fans shall operated continuously while men are
    underground
  • Accidental stoppage

295
examined before each shift
  • Quantity of air
  • Measured by Certified Person
  • Recorded

296
Electrical equipment 77.1914
  • Permissible
  • Flame resistant
  • Approved by Bureau of Mines

297
Combustible Materials 77.1915
  • Compressed and liquefied gas, oil gasoline and
    other
  • Not stored within 100 feet of shaft or slope
  • Other combustible materials and supplies
  • Not stored with 25 feet of shaft or slope
  • Oily rags,waste, waste paper shall be stored in
    metal containers

298
Welding, cutting Fire Protection 77.1916
  • One portable fire extinguisher
  • Welding, cutting in the vicinity of any shaft or
    slope
  • Exams for Methane
  • 1,0 Methane
  • Noncombustible barriers shall be used
Write a Comment
User Comments (0)