Use of concrete-cored DCM pile in soft ground

A new kind of composite pile, named concrete cored DCM pile is used in soft ground engineering. This paper describes its design and construction technology, and analyzes its load transfer mechanism, failure mode and ultimate bearing capacity based on the static load test in Shanghai and Jiangyin cities.It is proved that concrete cored DCM pile has many advantages such as simple construction method, little environmental disturbance, high bearing capacity,small settlement,low costs,and extensive adaptability in soft ground engineering. This research is also valuable as a reference to the design of other kinds of composite piles.