西安地铁渗漏水原因及应对措施

地铁工程大多处于地下水位附近及以下,因此做好地铁防水显得尤为重要。以西安地铁2号线一期工程为背景,在详细调查研究车站、暗挖隧道、盾构隧道渗漏水现状和特点的基础上,重点从外包防水、施工缝、诱导缝、变形缝和混凝土裂缝等方面分析渗漏水原因并提出应对措施,就地铁防水设计和施工中需要注意的问题进行讨论。

Causes and Countermeasures for the Water Leakage in Xi'an Metro

Waterproofing is important for metro projects since they are always situated under or nearby water level.With the first-stage project of Xi’an metro Line 2 as the background,on the basis of investigation into the present situation and characteristics of water leakages in stations,excavated tunnels and shield tunnels,causes of the leakages have been analyzed from the respect of outside waterproofing membrane,construction joints,deformation joints and concrete cracks with correspondent countermeasures proposed.In the mean time,some issues have been discussed for the design and construction of underground water proofing.