It is proved that concrete-cored DCM pile has many advantages such as simple construction, little environmental disturbance, high bearing capacity, small settlement, low costs, and extensive adaptability in deep excavation engineering.

A new kind of composite pile, named concrete cored DCM pile is used in soft ground engineering.

The bearing capacity of the same specification cement soil mix stake and the concrete drill holing stake,and the influence of staking length to the cement soil mix stake bearing capacity were tested.

Application of the cement-soil mixing pile in the soft foundation processing;

Seismic response of cement-soil mixing pile composite foundation with time-history analysis;

Research on the cement-soil mixing pile for marine soft soil foundation improvement and it s application;

Analyses about the engineering case of cement deep mixing pile in soft ground improvement;

In this paper, the layer of gravel soil with soft lens is treated using the cement deep mixing piles (CDMP).

By comparing the results of static loading test with calculating results, the actual situation of cement deep mixing pile s loading is proved, At the same time, it proposes the parameters of designing and of construction in application of cement deep mising pile in soft soil foundation.