Advancement Of Drilled Shaft Construction

1
DMI Drilling Construction
2
Advancement Of Drilled Shaft Construction

• Drilled shaft construction has advanced to new
  heights due to further developments in drilling
  equipment and construction techniques. Nowadays,
  drilled shafts are useful in services like
  dewatering well systems, erosion control, and low
  overhead drilling. They can be used in services
  like underpinning, micropiles, tunnel vent
  shafts, and elevator jackshafts.
•  A drilled shaft involves fluid placement in a
  drilled hole. Also known as a drilled pier, it is
  a deep foundation with a structure that can be
  supported by various foundations that are chosen
  based on factors like the cost, site subsurface
  materials, the loads that must be imposed, and
  other special considerations like high lateral
  capacity. Drilled shafts are also known as
  'caissons' or bored piles and they are known to
  be highly efficient and cost effective deep
  foundation systems. Hence, drilled shafts are
  used all over the world to create large
  structures and bridges where lateral resistance
  and large loads are important factors.

3

• Advantages
•  
• There are many advantages to drilled shaft
  construction. Apart from economics and
  versatility in dewatering projects, the
  construction of drilled shafts can minimize pile
  cap requirements and provide high lateral and
  axial loading capacity. Drilled shafts can easily
  adapt to different site conditions without
  causing further disturbance to the surrounding
  environment. It reduces vibrations and produces
  slightly less noise, too.
•  
• Different Designs and Construction Methods
•  
• Drilled shafts can be designed in different ways.
  The 'end bearing' design lets the load get
  carried by the end or the base of the shaft. The
  'friction shaft' is another design that lets the
  load dissipated throughout the materials used to
  form it. There are also different construction
  methods for drilled shafts. Dry shaft
  construction is ideal for sites where soil and
  rock conditions and ground water level can permit
  the shaft construction with a dry excavation, and
  where an engineer can visually inspect the bottom
  and sides of the shaft before concrete is placed.
•  

4

• Wet shaft construction is best when water or
  slurry is used to maintain a stable hole for the
  entire shaft, and cased shaft construction is
  used when certain construction methods are
  insufficient to prevent the hole from caving or
  getting deformed.
•  
• Drilled shaft construction can be a great option
  as long as it is not used in contaminated areas
  and sensitive construction requirements. Hiring a
  reputable drilling and construction company with
  qualified inspectors and vast construction
  expertise is crucial in ensuring that the drilled
  shafts can be constructed properly.

5
Contact Information

• Address 14211 16th St E, Unit 8
• Sumner, Washington,
• United States 98390
• Telephone [phone]
• Fax [phone]
• Email info_at_dmidrilling.com
• Website http//www.dmidrilling.com/