Research on pile penetration into cushion of composite ground

As an important part of load transfer behavior and settlement,the research for pile penetration into cushion would improve and perfect the theory of composite ground.There are only few studies of penetration.We analyze the shortcomings of existent calculating methods for penetration,and obtain the more rational method.Finally,this method is compared with the existent methods and model experimental results;it is shown that this method is reasonable and feasible.