Upon the envelope structure of subway deep foundation pits the sequence of reasonable construction conditions was determined in this paper. Based on the results of monitoring by the excavation process, displacement pile body, settlement of soil outside pile and variation of bending moment were dicussed, and the reason of monitoring data changes was analyzed. The reference experience was provided for the same projects.%本文根据地铁车站深基坑围护结构形式,确定了土方开挖的合理施工工况顺序.基于基坑土方开挖过程的监测结果,阐述了围护桩桩身位移、桩外土体沉降和桩身弯矩等变化规律,分析了监测数据变化产生的原因,为相似工程提供施工参考.
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