The deformation of retaining structures can be divided into two stages: one is unloading effecting stage; another is lateral earth and water pressure effecting stage.
3.将围护结构变形分为两个阶段:开挖瞬时卸荷作用阶段和主被动区水土压力差作用阶段。
参考来源 - 考虑卸荷影响的基坑三维计算理论研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Change of earth pressure, pore water pressure, underground water level, surface deformation, and sub-surface movement all have direct relationship with distance between shield and testing section.
土压力、孔隙水压力、地下水位、地面变形及深层土体移动的变化都跟掘进机与测试断面之间的距离有直接关系。
The analytical calculation for one project case shows that the maximal earth counterforces calculated by estimating water and earth pressure together or separately in clay soil were very different.
算例分析表明，在黏性土中采用水土压力分算和合算得到的圆形沉井最大土体反力差别很大。
Under the precondition of computing water and earth pressures separately, the effect of the computation method of earth pressure on that of water and earth pressures is studied.
研究结果表明，挡墙背后土体存在着沿平面滑动和绕对数螺旋柱面转动两类临界状态，对应有两种不同类型的水-土压力分算方法。
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