Abstract：Based on the results of pile-foundation-interaction analysis for four high rise buildings, a research on pile groups is made to reveal the load transfer of piles and the applied vertical stress distribution in subsoil Analysis results indicate that pile groups are different from a single pile in load transfer behavior, and that pile group foundations are obviously different to equivalent deep foundations in applied vertical stress distribution in substratum The applied vertical stress is used to calculate the deformation of subsoil The results are in agreement with the deformation measured
楼晓明；洪毓康；陈强华；. 群桩基础地基中的竖向附加应力性状研究[J]. 岩土工程学报, 1996, 18(4): 23-29.
Lou Xiao ming, Hong Yu kang, Chen Qiang hua . Behavior of Applied Vertical Stress in Subsoil of Pile Group Foundations. Chinese J. Geot. Eng., 1996, 18(4): 23-29.