求翻译：地下水对地下工程的影响主要表现为：①产生静水压力作用于洞室衬砌，增加支护结构上的压力，造成洞室围岩沿软弱结构面滑动，造成洞室变形、失稳、地下水还会产生渗漏、泉涌，影响地下工程正常使用。②地下水使岩土软化，强度降低；使围岩中软弱夹层泥化，减小层间阻力；还会使某些岩土（如石膏、岩盐、高岭土等）产生溶解、膨胀，造成洞室变形。③造成地下工程施工中产生涌水、流砂、涌泥等现象，引起洞室变形、塌方和冲溃，甚至淹没和堵塞洞室。砂、水混合物涌入洞室，常常造成严重事故，影响地下工程的施工和地下建筑物的使用。是什么意思？

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The ground water to the underground project influence main performance is:①Has the hydrostatic pressure to affect Yu Dongshi the lining work, in the increase supports and protections structure pressure, creates the hole room adjacent formation along the weak structural plane glide, creates the hole

Influence of groundwater on underground works mainly for: ① hydrostatic pressure acting on tunnel lining, increasing pressures on the supporting structure, resulting in cavern surrounding rocks along weak structural surface sliding, resulting in deformation of Caverns, instability, and groundwater a

The impact on underground project of the groundwater is mainly shown as: ①Produce the still water pressure and act on the hole room to line with building, increasing supports to protect the structural pressure, slip cause hole room country rock along weak structure, cause hole room deformation, jitt