采矿与安全工程学报2017，Vol.34Issue(2)：199-207,9.DOI:10.13545/j.cnki.jmse.2017.02.001
复杂地质条件下巷道过断层关键技术研究及应用
Study and application of key technology for roadway crossing faults under complex geological conditions
摘要
Abstract
The fault fracture zone characteristics of low strength, easy deformation, water permeability, and poor water resistance often lead to fault activation and induce the roadway roof fall or water inrush accidents during roadway excavation. Based on the comprehensive geophysical prospecting techniques of TSP, seismic wave and transient electromagnetic,the faults and the characteristics of water in road-way ahead in stratum were revealed, the reasonable position of roadway crossing faults was determined, which provided the basis for fault roadway excavation, pre-reinforcement and surrounding rock support design. The comprehensive measures of grounding and work face pre-grouting technology were adopted to reinforce the fault fracture zone through water blocking and rock grouting. During the process, a double-grouting plugging curtain was formed, the groundwater was blocked effectively, the integrity and intensity of the roadway surrounding rock in fault area were improved, the basic stability and con-struction safety of surrounding rock in roadway excavation were ensured, and the reliable foundation for later roadway surrounding rock anchor supporting was provided. According to the fault fracture zone characteristics of complex lithology and sudden geological disasters, reasonable roadway driving and supporting technical schemes were put forward based on theory analysis and comprehensive geophysi-cal prediction results. According to the requirements of load and high impermeability in later period , a reasonable type of secondary supporting structure and seepage-prevention reinforcement measures were taken to ensure the long-term stability and safety of the roadway surrounding rock based on the hydrau-lic pressure on the supporting structure.关键词
复杂地质条件/断层破碎带/注浆堵水/物探技术/防渗加固衬砌结构Key words
complex geological condition/fault fracture zone/blocking water with grouting/geophysical prospecting technology/lining structure of seepage control and reinforcement分类
矿业与冶金引用本文复制引用
孟庆彬,韩立军,齐彪,文圣勇,陈轲,黄小忠,孙茂贵..复杂地质条件下巷道过断层关键技术研究及应用[J].采矿与安全工程学报,2017,34(2):199-207,9.基金项目
山东省土木工程防灾减灾重点实验室开放课题项目(CDPM2014KF03) （CDPM2014KF03）
国家自然科学基金项目(51323004,51322401,51579239, 51574223) （51323004,51322401,51579239, 51574223）
中国博士后科学基金项目(2015M580493,2014M551700,2013M531424) （2015M580493,2014M551700,2013M531424）
