Inner excavation method - Pile bissness(Construction)Inquiry
The inner excavation method is a method which the auger is inserted into the hollow part of the pile and excavates till the predetermined depth.
Amongst inner excavation methods, SUPER DANK method enables high bearing capacity per pile so that smaller diameter piles are used than conventional methods. Moreover, it can decrease surplus soil and minimize footing size . Therefore, this method enables designs which benefits both economically and environmentally.
SUPER DANK method
This is the latest inner excavation method that upgrades the DANK method and improves α to 425.
With using special drilling head and making enlarged pile toe, it is possible to maintain high bearing capacity.
- SUPER DANK method (bearing capacity factor α = 425)
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Certification
SUPER DANK method
DANK method
The DANK method is an inner excavation method that excavates the pile tip ground while ensuring a prescribed excavation diameter using a mechanical expansion head and allowing for foot protection. It is a newly developed method that aims to be able to build foundation pile structures reliably and efficiently. The characteristic drilling head consists of two excavating arms axially fastened to the main body and swingably on both sides of the main body.
When excavating in the ground, the excavating arm moves due to the resistance of the ground, and the special mechanical head enables two types of excavation using the rod part or the foot protection part of the diameter. With this mechanism, enlarged drilling is possible using the drilling resistance even for a ground with large resistance, so it is enables stable excavation efficiency and stable foot protection.
- DANK method(bearing capacity factor α = 250)
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Certification
- Acquire Construction Technology Certification
Other STJ Methods
Other Inner Excavation Methods
