地表灌浆技术在隧道施工涌水地段中的应用与研究——以引绰济辽工程输水工程为例  

Application and Research of Surface Grouting Technology in Tunnel Construction Water Gushing Section——Taking the Water Conveyance Project of Ji-Liao Project as an Example

作　　者：初明亮 巩寅魁 CHU Mingliang;GONG Yinkui(Sinohydro Bureau 6 Co.,Ltd.,Shenyang,Liaoning Province,110000 China)

机构地区：[1]中国水利水电第六工程局有限公司,辽宁沈阳110000

出　　处：《科技资讯》2022年第22期87-91,共5页Science & Technology Information

摘　　要：水利工程暗挖工作中,为解决地下岩层节理发育、地质条件差、涌水、施工安全隐患较多等不稳定因素,所以开挖前期的超前预报、预测工作、岩层固结技术,就是暗挖施工中最有效的安全保证手段,针对样本工程,开挖过程中发现岩层揭露地质条件较差且伴有涌水,采用综合物探法探明地质情况、细节走向;高密度电法测算前方岩层含水量及部位;辅以传统钻孔物探结合取样加以分析,经测算后的现场试验及实地作业,证明,就样该工程而言,地表灌浆技术,在保证固结围岩的同时,有效解决了地下涌水情况,进一步保证了工程质量与施工节点,在同类型工程中具有较好的匹配度和参考价值。In order to solve the unstable factors such as the joint development of underground rock,poor geological conditions,water gushing,and many construction safety hazards in the concealed excavation of hydraulic engineering,the advance prediction,prediction work,and rock consolidation technology in the early stage of excavation are the most effective safety assurance means in the underground excavation construction.In view of the sample project,finding the exposed geological conditions of the rock stratum are poor and accompanied by water gushing during the excavation process,and the comprehensive geophysical method is used to detect the geological conditions and detailed trends;High density electrical method is used to measure the water content and position of the front rock stratum;Combined with traditional borehole geophysical exploration and sampling analysis,the field test and field operation after calculation prove that the surface grouting technology can effectively solve the problem of underground water gushing while ensuring the consolidation of surrounding rock,further ensure the project quality and construction nodes,and has a good matching degree and reference value in similar projects.

关 键 词：隧道施工 涌水洞段 洞内超前灌浆 地表阻水灌浆 

分 类 号：U231.3[交通运输工程—道路与铁道工程]