中文摘要：

灰岩角砾岩破碎带涌水是岩溶隧道建设中经常遇到的地质灾害,由于破碎带围岩稳定性较差且具有较强的不均一性,与一般的裂隙岩体涌水相比,其治理难度较大。针对中梁山隧道角砾岩破碎带高压大流量涌水,进行涌水地质分析和含水区域的瞬变电磁探测,对地下水的来源和通道进行深入分析,在此基础上提出并实施先分流泄压后浅层加固、上下分区治理、深部帷幕和堵排结合的综合治理方案,通过选择适当的注浆材料和配套工艺,取得较好的治理效果。为避免注浆压力可能造成的破碎围岩变形和失稳,在注浆过程中进行围岩变形和涌水量的动态监测,结合注浆过程深入分析其变化规律,较好地解决注浆过程中的围岩稳定性控制难题,实现涌水治理的信息化施工。

英文摘要：

Water gushing in limestone breccia fracture zone is a complex geological disaster often encountered in tunnel construction.Compared with the general water gushing in fracture rock mass,due to the poor stability of surrounding rock and rock heterogeneity,gushing treatment in limestone breccias fracture zone is very difficult.For controlling the water gushing in breccias fracture zone with high water pressure and quantity in Zhongliangshan tunnel,water analysis and transient electromagnetic detection were conducted;and groundwater source and channel were analyzed.Based on this,drainage was done first to reduce the water pressure in surrounding rock,then grouting was carried out to strengthen shallow layer.The shallow layer grouting was divided into two parts,i.e.upper part and lower part.Curtain in deep rock was done to plug water.Plugging and drainage were combined in water gushing control.Those four measures formed a comprehensive treatment method.A good control effect was achieved through choosing adaptive grouting materials and matched technology.Surrounding rock deformation and water quantity were measured and analyzed to avoid rock instability induced by grouting pressure.The comprehensive water gushing treatment method well solved the problems during grouting process in breccia fracture zone and realized informatization construction.