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　王祥秋^1,2　楊林德¹　高文華²
　（1 湖南科技大學(xué)土木工程學(xué)院 湘潭411201；2 同濟(jì)大學(xué)地下建筑與工程系  上海200092）

[提要]  對(duì)深基坑工程拉錨式圍護(hù)結(jié)構(gòu)建立了非線性有限元分析模型，采用直梁?jiǎn)卧M圍護(hù)樁，圍護(hù)樁與土體之間的接觸面用帶轉(zhuǎn)動(dòng)自由度的Goodman接觸單元模擬，并將層狀土體視為橫向各向同性材料。通過(guò)深基坑工程的計(jì)算結(jié)果與實(shí)測(cè)結(jié)果的對(duì)比分析，證明提出的分析方法是合理的。
[關(guān)鍵詞]  拉錨式圍護(hù)結(jié)構(gòu)  非線性有限元法  Goodman接觸單元

A finite element calculation model is established for the tension anchor bracing structure. The　supporting pile is simulated by the straight beam element and an interface element with rotational　freedom is proposed to simulate the behavior of interface between the soil and the supporting pile.The layering soils are regarded as transversal isotropic material.This analysis method is used in a deep　foundation pile and the results prove that the method is rational.
Keywords:  tension-anchor bracing structure; non-linear finite element analysis;  interface element of Goodman

   　 參  考  文  獻(xiàn)
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6．王祥秋，楊林德，高文華等．含軟弱夾層層狀圍巖地下洞室平面非線性有限元分析．巖土工程學(xué)報(bào)，2002，24(6)．