基坑开挖过程中地下水渗流数值模拟

地下水渗流会对基坑的安全构成威胁。本文基于深基坑工程实例，建立了三维基坑渗流模型。通过对邯郸市某建筑基坑开挖过程中渗流情况的数值模拟，分析了基坑分阶段开挖过程中基坑内外土体中孔隙水压力在时间和空间上的分布规律。分析结果表明基坑开挖过程中地下水由基坑外部向内部渗流，基坑内、外部形成主、被动压力区，对基坑内部稳定性不利。研究结论为深基坑的设计与支护提供理论指导。

Numerical simulation of groundwater seepage in the process of excavation

Groundwater seepage poses a threat to the foundation pit safety. Based on the example of deep foundation pit engineering, the three-dimensional seepage model is established.According to the seepage numerical simulation of a foundation pit at excavation stage in Handan city, analyzing the pore water pressure distribution rule in soil of foundation pit In time and space at excavation stages. The result shows that the groundwater flow into the internal foundation pit from the external in the process of excavation, and active pressure and passive pressure zone were formed. The conclusion provides theoretical guidance for the design and support of deep foundation pit.