摘要
针对受断层影响巷道难以支护的难题,以某矿9号煤层运输巷为研究对象,采用实地调研、理论分析、FLAC数值模拟及实际应用的研究手段,对受断层构造影响下巷道围岩运移机理及支护技术进行了研究。结果表明:在断层影响下,巷道围岩应力变化特征差异性明显,锚杆(索)支护的关键区域与无支护条件下的区域相对比,巷道锚杆(索)联合支护技术明显提高了巷道围岩整体承载能力,应用结果表明,该技术能够实现过断层区域巷道围岩有效支护。
Based on hard support of roadway affected by fault, No.9 coal seam transportation roadway of a mine was taken as an example to study migration mechanism and supporting technology of roadway surrounding rock with research means of field investigation, theoretical analysis, FLAC numerical simulation and practical application. It was clear that under fault influence, the difference of stress characteristics of roadway surrounding was obvious. Different support schemes were used in different key supporting areas; The combined support technology of roadway bolt （ cable ） obviously improved overall carrying capacity of roadway surrounding rock comparing. As a result, the application results showed that this technique could effectively support surrounding rock of roadway in fault area.
出处
《煤炭与化工》
CAS
2017年第8期50-53,共4页
Coal and Chemical Industry
关键词
数值模拟
断层构造
巷道围岩
支护方案
锚杆(索)联合支护
numerical simulation
fault structure
roadway surrounding rock
support scheme
bolt （ cable ） combined support
作者简介
张晨曦（1987-），男，山西芮城人，采矿助理工程师。
