Results show that exposure time of pit bottom soil affects notably the diaphragm wall displacement during the periods of both soil exposure and pit bottom construction.
本文就坑底土层局部加固对支护结构位移的影响效果和规律，结合工程实例，并从理论上进行了分析研究。
By reducing the permeability of soil at the bottom of pit and selecting optimal dewatering depth, the settlement of ground surface can be well controlled.
采用降低坑底土层渗透性的措施和选择最佳的降水深度能有效地控制坑外地表的沉降。
The paper provides the key factors to control the pit construction by restricting heave of the bottom soil and minimizing tunnel displacement.
文章阐述了如何通过控制基坑施工主要影响参数，进而限制坑底土体隆起，减小隧道位移。
Piles under the bottom of a pit are always subject to deflection due to excavation-induced soil movement on soft foundation.
软弱地基开挖，流动土体对坑内桩基推挤，导致桩基偏位；
Piles under the bottom of a pit are always subject to deflection due to excavation-induced soil movement on soft foundation.
软弱地基开挖，流动土体对坑内桩基推挤，导致桩基偏位；
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