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在相邻的大面积深基坑同期或前后交叉施工时,如果当基坑相邻净距小于10m(即小于坑深1倍)可取消相邻边围护结构,而采用两坑合用围护结构是最经济合理的方案,即相邻基坑采用“共墙”的施工方案。此法经上海铁路南站工程实践,其效果良好。
In the adjacent large-area deep foundation pit construction in the same period or before and after the cross-over construction, if the adjacent pit clearance of less than 10m (ie, less than 1 times the depth of the pit) can be removed adjacent envelope, and the use of two pit confinement The structure is the most economical and reasonable solution, that is, the adjacent foundation pit adopts “common wall ” construction scheme. This method by the Shanghai South Railway Station project practice, the effect is good.