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中梁山隧道西端围岩倾斜度大，地下水发育，地表保水性不好，在开挖过程中有大股岩溶水涌出，为了施工安全并保持地下水位不致大幅度下降，从而引起地表塌陷，故采取了以堵为主的防水方式。施工中采用钻孔深水和预注水泥、水玻璃浆液，根据不同情况进行全断面或裂隙注浆，有效地解决了开挖渗漏水问题，并总结了施工方法和注浆参数。
The slope of the surrounding rock of Zhongliangshan tunnel is large with the development of groundwater and the poor water retention of the earth’s surface. During the excavation process, a large stock of karst water gushes out. In order to ensure the safety of construction and keep the groundwater level low, the surface subsidence will be caused Taken to block the main waterproof. In the construction, drilling deepwater, pre-grouting cement and water glass slurry are used for full face or fissure grouting according to different situations, which effectively solves the problem of seepage water in excavation and summarizes construction methods and grouting parameters.