论文部分内容阅读
宜巴项目位于鄂西山区,该区内特殊性岩石主要为三迭系下统嘉陵江组含石膏微晶白云岩与岩溶角砾岩,凉水井隧道大部分处于强～中风化白云质灰岩、含石膏灰岩及岩溶角砾岩等不良地质段,其施工难度及安全风险性高,本项目通过对岩矿检测确定膨胀性岩等级,采取合理的衬砌支护方式及施工措施,加强施工管理,保证隧道膨胀性岩段不受岩溶段影响或影响最低,利用监控量测手段,确保隧道施工及运营安全。
The Yiba project is located in the mountainous area of Western Hubei. The special rocks in the area are mainly composed of gypsum microcrystalline dolomite and karst breccia in the Lower Triassic Jialingjiang Formation, most of the Liangshuijing tunnel in the strong-moderately weathered dolomitic limestone, Including gypsum limestone and karst breccia and other adverse geological sections, the construction of the high degree of safety and security risks, the project through the rock and mine detection to determine the grade of expansive rock, take reasonable lining support methods and construction measures to strengthen the construction management , To ensure that the expansive rock tunnel section is not affected or least affected by the karst section, and the monitoring and measuring measures are used to ensure the construction and operation safety of the tunnel.