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在深基坑开挖整体稳定性分析中，把孔隙水压力的计算分解成静水压力、动水压力和超静水压力三个部分。对于静水压力，指出了目前工程中简化计算方法所存在的问题，建议按渗流流网的水头梯度进行计算。对于基坑开挖卸载所引起的超静水压力，应根据坑内外土体的应力路径做三轴不排水剪试验确定。此外，对于基坑开挖采用总应力法分析时，应按卸载总应力强度指标计算。
In the analysis of the overall stability of deep foundation pit excavation, the pore water pressure is calculated into three parts: hydrostatic pressure, dynamic water pressure and superhydrostatic pressure. For the hydrostatic pressure, the problems existing in the simplified calculation method in the current project are pointed out, and it is suggested that the calculation is based on the head gradient of the seepage flow network. For the extra-hydrostatic pressure caused by excavation and unloading of foundation pits, a triaxial undrained shear test shall be performed according to the stress path of the soil inside and outside the pit. In addition, when the total stress method is used for excavation of foundation pits, it should be calculated according to the total stress intensity index of unloading.