大断面隧洞微震监测研究与实践  

Practice and Study on Microquake Monitoring of Large Section Hydraulic Tunnel

作　　者：雷厚斌 严沁之 邹婷 杨波 LEI Houbin;YAN Qinzhi;ZOU Ting;YANG Bo(Construction and Management Branch of Shuangjiangkou Project,Dadu River Hydropower Development Co.,LTD,CHN Energy,Chengdu,Sichuan,610000)

机构地区：[1]国家能源投资集团国电大渡河双江口工程建设管理分公司

出　　处：《四川水力发电》2019年第S02期101-105,127,共6页Sichuan Hydropower

摘　　要：建立大断面水工隧洞岩爆微震监测系统,通过微破裂信息数据连续采集,实现对水工隧洞岩爆灾害实时在线监测,并进行数据整合,获取洞室围岩渐进破裂诱发失稳过程中微震活动的数字化信息,建立完善的“地下隧洞岩爆动力灾害预测虚拟现实系统”,实现围岩损伤发生频率、位置以及密度的可视化,从而实现有效地利用所掌握的信息预测隧洞开挖强卸荷扰动诱发的围岩变形灾害,使其成为能够直观地帮助人们做出有效决策的灾害预测和风险评估方法。The microquake monitoring system of rock burst in large section hydraulic tunnel is established by continuous collection of micro fracture information data,the real-time online monitoring of rock burst in hydraulic tunnel is realized,and the data integration is carried out to obtain the digital information of microquake activities in the process of gradual fracture induced instability of surrounding rock of cavern,and a perfect"virtual reality system of rock burst dynamic disaster prediction in underground tunnel"is established to realize the visualization of the occurrence frequency,location and density of surrounding rock damage,so that can effectively use the information obtained to predict the deformation of surrounding rock induced by the strong unloading disturbance of tunnel excavation,and make it a disaster prediction and risk assessment method that can help people make effective decisions intuitively.

关 键 词：水工隧洞 微震监测 基本原理 系统安装 典型分析 

分 类 号：U455.412[建筑科学—桥梁与隧道工程] TV672.1[交通运输工程—道路与铁道工程]