4Poulos H G.Pile behavior-theory and application[J].Geotechnique,1989,39(3):365～415.
5O'Neill M W. Side resistance in piles and drilled shafts [J].Journal of Geotechnical and Geoenvironmental Engineering,ASCE, 2001, 127 (1): 1-16.
6Comodromos, Emilios M. Anagnostopoulos, Christos T.Numerical assessment of axial pile group response based on load test. Computers and Geotechnics. 2003, 30(6):505-515
7Liu, Jie, Xiao, H,B, Tang, J,Li, Q,S. Analysis of load-transfer of single pile in layered soil. Computers and Geotechnics.2004,31(2):127-135
