Title: Geologi ialah suatu bidang tentang bumi
1Geologi ialah suatu bidang tentang bumi
Kejuruteraan adalah suatu bidang berkaitan dengan
reka bentuk (design) selamat dan ekonomi
2 GEOLOGI KEJURUTERAN AHLI GEOLOGI JURUTERA
3- Engineering geology is the application of
geological data, techniques and principles to the
study of rock and soil surficial materials, and
ground water. This is essential for the proper
location, planning, design, construction,
operation and maintenance of engineering
structures. Engineering geology complements
environmental geology, or hydrogeology.
4- Engineering geologists assess the natural
foundations for buildings, bridges, dams,
reservoirs, powerplants, pipelines, highways,
canals, sewers, tunnels, mine adits and harbours.
Design of these structures requires a thorough
knowledge of the mechanical properties and
stability of the rocks and sediments that will
carry these structures. Engineering geologists
need to anticipate the impact of subsidence,
rains, floods, landslides, volcanoes and
earthquakes on the foundations that bear these
structures. They explore the physical and
chemical properties of structural materials
(sand, gravel, cement, clay), and water in and
around construction sites. They advise on land
use and on the planning and location of new urban
and industrial development in cities. They
examine and report on waste disposal sites, and
particularly those for the disposal of nuclear
wastes.
5- Engineering geologists must solve practical
engineering problems. Basic university geology
courses include physical and historical geology,
geomorphology, glacial geology, mineralogy and
petrology. Courses in sedimentology,
stratigraphy, structural geology, and geophysics
are also taken. Other topics include soil and
rock mechanics, hydrogeology, air photo
interpretation, site investigation and urban
geology. Canada is a northern country with over
half its land mass underlain by some type of
perenially frozen ground so engineering
geologists are focussing increasing attention on
permafrost problems. Current global warming
trends are likely to intensify the melting of
ice, causing sediment stability problems for the
foundations of structures
6- Most engineering geologists work for consulting
firms in engineering geology, geotechnical
engineering or environmental assessment. Many are
employed in provincial and federal surveys.
Others are involved with large urban and
industrial development and construction firms.
Still more are at universities or research
institutions. The petroleum industry also takes
its share. The demand for engineering geologists
is high, and there are small numbers of graduates
(about 100 each year) from Canadian universities
7Definition Engineering geology is devoted to the
investigation, study and solution of the
engineering and enviromental problems which may
arise as the result of the interaction between
geology and the works and activities of man as
well as the prediction and the development of
measures for prevention or remediation
of Geological hazards (IAEG Statutes, 1992)
8Engineering geology, as a science, is concerned
with the applications of the principles of
geology to civil (and to some extent, mining)
engineering, so that the engineer can take into
account these geological aspects which control
the economy, and safety of the structure which
is required to design and construct (Beavis,
1985)
9sambung Beavis lagi
All civil engineering works are constructed on,
or in rock and soil masses. It is essential
therefore that the civil engineer be aware of the
history, nature, and the properties of the rocks
and soils. Equally, it is essential for the
geologist, who is to work with the engineer, to
have some knowledge of engineering requirements.
10- Engineering geology embraces
- the definition of the geomorphology, structure,
stratigraphy, lithology and ground water
conditions of geological formations - the characterisation of the mineralogical,
physico-geomechanical, chemical and hydraulic
properties of all earth materials involved in
construction, resource recovery and environmental
change - the assessment of the mechanical and hydrological
behaviour of soil and rock masses - the prediction of changes to the above properties
with time - the determination of the parameters to be
considered in the stability analysis of
engineering works and earth masses the
improvement and maintenance of the environmental
condition and properties of the terrain.
11Lihat kitar geologi (dari manusia dan geologi)
12science
- To observe
- To collect data
- To plot data
- To evaluate and analyze data
- To derive conclusion hyphotheses or theorizes,
facts or illusion, truth or lies
13Jurutera merekabentuk untuk
14Sebuah madah
A SCIENTIST DISCOVERS
AN ENGINEER DESIGNS
15Konsep2 asas geologi
- Sistem solar dan kejadiannya
- Bumi struktur dalam, Tektonik Keping, proses
kejadian di permukaan dan di dalam bumi - Batuan dan mineral, dan kejadiannya
- Batuan igneus dan kejadiannya, dan gunung berapi
- Luluhawa dan batuan mendak (stratigrafi)
- Batuan metamorfik
- Masa geologi dan fosil
16- Hidrologi air tanah
- Cangaan (struktur geologi)
- Peta geologi, Peta Topografi, persekitaran
geologi (enviromen kejadian dan pemendapan) - Sifat2 kejuruteraan tanah, batuan dan air
- Kajian tapak geologi, geokimia, geofiziks
- Kegunaan geologi dalam kejuruteraan sumber alam
(air, mineral, bijih, gas asli, petroleum,
batuan, pasir, tanahliat) - Contoh2 kes penyelesaian masalah dalam
kejuruteraan mekanik tanah dan batuan, tanah
runtuh
17Tujuan kursus
- Memperkenalkan konsep2 asas geologi
- Menunjukkan bagaimana konsep2 asas geologi
digunakan untuk menyelesaikan masalah dalam
bidang kejuruteraan (sama ada kejuruteraan awam,
perlombongan, persekitaran, bahan, dll) - Hasilnyakita menjadi lebih peka dengan sumber
yang diberi oleh bumi (terhad) untuk dimanafaat
dengan baik oleh manusia sejagat untuk
mensejahtera kehidupan kita yang fana ini
18Sebuah madah
A SCIENTIST DISCOVERS
AN ENGINEER DESIGNS
19Jurutera merekabentuk untuk
- 1 Keselamatan
- 2 Keuntungan
20Tujuan kursus
- Memperkenalkan konsep2 asas geologi
- Menunjukkan bagaimana konsep2 asas geologi
digunakan untuk menyelesaikan masalah dalam
bidang kejuruteraan (sama ada kejuruteraan awam,
perlombongan, persekitaran, bahan, dll) - Hasilnyakita menjadi lebih peka dengan sumber
yang diberi oleh bumi (terhad) untuk dimanafaat
dengan baik oleh manusia sejagat demi
kesejahteraan hidup kita yang fana in.
21Konsep2 asas geologi
- Sistem solar dan kejadiannya
- Batuan dan mineral, dan kejadiannya
- Masa geologi
- Proses kejadian permukaan bumi
- Proses kejadian dalam bumi
- Sumber alam (air, mineral, bijih, gas asli,
petrroleum, batuan, pasir, tanahliat) - Persekitaran geologi
22Matlamat pembelajaran-pengajaran
- Learn to know
- Learn to do
- Learn to know and how to do
Matlamat ujian/peperiksaan ? ? ?
sekelumit falsafah
23Somebody says
What do you think?
24What do you think?
25Somebody also says
- APPLIED knowledge is power
Do you agree?
26pandangan bumi dari landsat images
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28Earthquakes hits Hindu Kush, Afghanistan
29Anti-Atlas Mountains, Morocco
30Africa's Great Lakes
31Iceland
Iceland
32Snow in Northeast US
33Persian Gulf and Gulf of Oman
34Haro and Kas Hills, India
35Facts and figures
- Bumi dilitupi 71 oleh air dan 29 oleh daratan
(landmass) - Didiami oleh manusia ..
- Didiami oleh haiwan ..
- Didiami oleh fauna dan flora ..
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37pandangan dalam bumi
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39seismology
- P waves surface waves, longitudinal/compressional
/push-pull type - trasmitted parallel to the line of propagation
moves faster than S waves at V 6-8 km/s first
to arrive - S waves surface waves also, transverse/shear
particles moves sideways and wave motion is
transmitted in a shear fashion, transverse to the
line of propagation Vel 3-4 km/s
40Cont-
- S waves are not transmitted thru fluids cause
the earthquakes (principal shaking) - P waves moves thru solid and liquid phases
- P S waves moves faster in dense rx than in
loose, low density materials both felt by people
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42Facts and figures
- Kerak
- Mantel
- Teras luar
- Teras dalam
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44Pantulan gelombang
45isostacy
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59Rakaman gelombang
60Kedudukan magma dalam bumi
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62Pandangan dalam bumi
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66Peringatan kpd tok guru
- TEORI TEKTONIK KEPING (THEORIES OF PLATE
TECTONICS) akan dibincang semula sebagai konsep
yg menyatukan fahaman ahli sains tentang bumi dan
sistemnya (SOLAR?)
67Lecture tambahan
- Apa yang berlaku di luar bumikehebatan dan
kepentingan astronomi
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70Mt Everest
- 29 035 kaki
- 8.84 km
- (1 kaki 0.0003 km)
71Renungan kpd soalan
- Adakah komposisi kimia kerak bumi, mantel bumi
dan teras bumi mempunyai persamaan dgn planet2
lain dan meteorit? - Kalau ada persamaan, apa rumusan yang boleh di
buat? - Kalau berbeza, apa rumusan yang boleh dibuat?
72persoalan
- Conceptual learning vs realities
- Mental learning vs physical learning
- Context vs content
- Relative truth vs absolute truth
- Science vs religion
- Syariat vs hakikat
73PERSOALAN 2 YG LEBIH BESAR DAN HEBAT
- Bagaimana alam semesta terjadi?
- Bagaimana permulaannya dan bagaimana
kesudahannya? - Adakah bumi sahaja yang boleh dihuni oleh
manusia? - Bagaimana dengan planet2 lain? Ada kehidupan
lain? - Kalau ada kehidupan, apa maknanya?
- Kalau tak ada kehidupan, apa maknanya?
74persoalannya
- Adakah kita ada jawapannya?
- Pastikah kita tentang jawapannya?
75In retropect
- Kita dah banyak tahu tentang permukaan bumi,
dalam perut bumi, di luar permukaan bumi hingga
ke angkasa lepas, ada apa untuk kita? - Sebagai manusia, itu soalan yg jauh yg sukar nak
ditelusuri - Sebagai jurutera, kita hadkan kegiatan kita pada
permukaan bumi, sedikit di dalam permukaan bumi,
dan sedikit di luar permukaan bumi ?kita kaitkan
dgn kerja kita (sudah cukup!!!)
76KENAPA TERHAD DI PERMUKAAN?
- KITA AKAN MEREKABENTUK APA JUA STRUKTUR DI
PERMUKAAN BUMI, DAN SEDIKIT DI DALAM PERMUKAAN
BUMI DAN SEDIKIT DI LUAR PERMUKAAN BUMI YANG DI
DALAM KAWALAN KITA, BUKAN DI LUAR KAWALAN KITA
77- Ciri2 fizikal dan kimia sistem solar
 Jisim (bumi 1) Jejari (km) ketumpatan Komposisi
Matahari 332000 695000 1.41 H2, He
Utarid 0.055 24440 5.44 Â
Kejora 0.815 6050 5.27 CO2,N2, H2O, Ar, SO2
Bumi 1 6371 5.52 N2, O2, CO2, H2O
Marikh 0.11 3397 3.95 H2, He, CH4, NH3
Musytari 318 71600 1.31 Â H2, He, CH4, NH3
Zuhal 95.2 60000 0.7 Â H2, He, CH4, NH3
Uranus 14.6 25900 1.21 Â H2, He, CH4, NH3
Neptun 17.2 24750 1.66 Â H2, He, CH4, NH3
Pluto 0.0017 1300 1? Â
78Relative abundance of elements by wt Relative abundance of elements by wt Relative abundance of elements by wt  Â
crust whole earth meteorites sun Moon
O Fe O H O
Si O Fe He Si
Al Si Si O Mg
Fe Mg Mg C Fe
Ca Ni S N Ca
Na S Ni Si Al
K Ca Ca Mg Ni
Mg Al Al Fe S
Ti Na Na Si Ti
H Cr Cr Al Cr
P Mn Mn Ca Na
Mn Co P Ni P
Fe P Co Na Mn
Ba K K Cr V
79Kandungan unsur dalam kerak bumi
SiO2 60.18
Al2O3 15.61
Fe2O3 3.14
FeO 3.88
MgO 3.56
CaO 5.17
Na2O 3.91
K2O 3.19
TiO2 1.06
P2O5 0.3
80