Three dimension numerical model was set up to discuss the soil arching effect of passive piles due to soil lateral displacement.
采用三维数值模型模拟土体水平位移条件下被动桩的成拱效应。
However, when it is used in soft soil, particular attention should be paid to "time-space effect" and foundation pit will have big slope displacement and bound...
但在软弱土层中采用尤其要重视“时空效应”，且基坑边坡的位移及周边的沉降较大。
Then, the effect of model parameters on displacement of soil and inner stress and displacement of bearing pile were discussed and rule of pit deformation was studied too.
讨论模型参数对土体变形及支护桩变形与内力的影响和基坑变形规律的研究；
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