联合防护技术在偏压浅埋隧道洞口加固中的应用

Application of Combined Protection Technology in Reinforcement of Shallow Buried Section with Bias Pressure of Tunnel Entrance

当前国家精准扶贫政策的进一步优化落实,尤其针对我国地理位置偏远,交通基础建设薄弱地区,大力发展基础建设,从而带动旅游资源开发等经济惠民政策发展。水源村隧道工程为秀山县境内扶贫旅游通道工程的一部分。隧址区地质复杂、存在浅埋、偏压及软弱围岩等地质危害,利用锚杆挂网锚喷、地表注浆及锚杆框架梁防护技术对隧道洞口洞顶进行联合加固,为安全进洞施工及明洞施工提高了安全保证。

In the current,as the national precision poverty alleviation policy is further optimized and implemented,especially for China's areas with remote geographical location and weak transportation infrastructure,it is necessary to vigorously develop infrastructure to drive the development of economic resources such as tourism resources.The Shuiyuan Village Tunnel Project is part of the poverty alleviation tourism corridor project in Xiushan County.The geology of the tunnel site is complex,there are geological hazards such as shallow burial,bias pressure and weak surrounding rock.The bolting and anchoring,surface grouting and bolt frame beam protection technology are used to jointly strengthen the tunnel hole roof for safety of safe tunnel starting construction and open-cut tunnel construction.