某山岭隧道二次衬砌渗水影响因素研究

渗漏水作为隧道中的一种常见病害，由于各自隧道的不同特点，其影响因素也各不相同。以渗漏水情况、隧道施工情况和周边水文地质情况为基础，分析了甘肃某在建隧道进口段二衬发生渗漏水现象，认为该隧道渗漏水发生的原因主要有水文地质因素、施工因素和防排水因素。运用专家调查法和层次分析法对渗漏水影响因素进行主次分析，得出主要影响因素有防排水系统的施工不规范和防排水系统受损，次要影响因素有二次衬砌施工质量不合格、防排水材料不合格和地表水及地下水丰富。通过分析渗漏水影响因素，为该隧道的渗漏水病害治理提供依据。

Analysis on Influencing Factors of Leakage Water on the Concrete Lining Surface of a Mountain Tunnel

As a common disease in tunnel, water leakage has diverse influencing factors due to the different characteristics of tunnels. According to leakage water, construction and surrounding hydrogeology condition, the paper analyzes the leakage water on the concrete lining surface of a mountain tunnel in Gansu, reaches a conclusion that hydrogeology, construction and water proof and drainage are the major factors of leakage water, and analyse the primary and secondary of influencing factors by expert research and analytic hierarchy process, obtains that the major influencing factors are not standardized construction and damage of waterproof and drainage system, and the secondary influencing factors are unqualified construction quality of lining, unqualified material of waterproof and drainage and abundant surface and groundwater. Through the analysis of influencing factors of water leakage, this paper provides a basis for the disease management.