EARTHQUAKE RESISTANCE OF PILE FOUNDATIONS IN COMPOSITE GROUND THROUGH DYNAMIC NONLINEAR NUMERICAL ANALYSIS
Earthquake resistance of pile foundations, established in the composite ground which was formed using the deep mixing method for the purposes of improving shear strength in soft ground was verified by a two-dimensional nonlinear dynamic finite element analysis. As a result, it was revealed that the displacement of pile foundations and the strain of pile bodies were restrained by composite ground around piles, and that the earthquake resistance of pile foundations was improved. It was also found that the earthquake resistance of pile foundations depends on the improved strength, improved width and improved depth of composite ground. The composite ground pile method is applicable for both Level 1 and Level 2 earthquake loadings.
piles ground improvement seismic design dynamic finite elemennt method
K.Tomisawa S.Nishimoto S.Miura
Senior researcher,Civil Engineering Research Institute for Cold Region,Sapporo.Japan Team reader,Civil Engineering Research Institute for Cold Region,Sapporo.Japan Professor,Graduate School of Engineering,Hokkaido University,Sapporo,Japan
国际会议
14th World Conference on Earthquake Engineering(第十四届国际地震工程会议)
北京
英文
2008-10-12（万方平台首次上网日期，不代表论文的发表时间）