Fundamental Research Funds for the Central University of China(2013QNA43);National Natural Science Foundation of China(51009135);Special Financial Support from China Postdoctoral Science Foundation(2012T50525)
Project supported by the National Natural Science Foundation of China(No.51009135);the National Science Foundation for Post-doctoral Scientists of China(No.20100481183);the Science Foundation for Young Scholars of China University of Mining&Technology(No.2009A008)
In actual engineering practice,the stress increment within a composite foundation caused by external loads may vary simultaneously with depth and time.In addition,column installation always leads to a decay of soil pe...