- 摘 要
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馬 維 漢
（上海銀泰置業(yè)股份有限公司 201206）[提要] 在軟土地基上建造的高層建筑，有時因地下圍護結構的失穩(wěn)或基坑挖土方法的不當造成基礎群樁發(fā)生嚴重位移的工程事故。如何處理這種事故？需要進行些什么驗算工作？有關規(guī)范在這方面并沒有規(guī)定內容。本文以上海浦西某工程的基礎群樁位移為例，從抗裂、附加力矩和位移三個不同的方面進行了必要的驗算分析，為工程補樁加固找到了依據。
[關鍵詞] 地下圍護結構 群樁位移 驗算The underground pit wall structure unstability or foundation pit excavations accident will cause multi -pile(group - pile) serious movements when high - rise building built on soft ground.Some codes did not make clear rule to prevent these accidents. For solving the problem, the methods of analysis and calculation are discussed.through a moved multi - pile project in Shanghai.Based on these analysis and calcularion we can clecide how to add piles and how to strengthen the supporter.
Keywords: underground pit wall; protect structure; force recalculation; piles movement
