煤层构造及掘进对顶板离层影响的数值模拟研究  

Numerical Simulation of Seam Construction and Tunneling to Separation Effects

作　　者：曾范永[1,2,3] 王连国[1] 

机构地区：[1]中国矿业大学深部岩土力学与地下工程国家重点实验室,江苏徐州221008 [2]江苏建筑职业技术学院,江苏徐州221116 [3]江苏建筑节能与建造技术协同创新中心,江苏徐州221116

出　　处：《煤炭技术》2016年第10期26-28,共3页Coal Technology

基　　金：国家基础研究计划973项目(CB2014046900);国家青年科学基金项目(51404245);江苏建筑节能与建造技术协同创新中心开放基金项目(SJXTQ1601)

摘　　要：针对行人上山和回风上山及行人上山和带式输送机顺槽2种情况对顶板离层的影响,利用FLAC^(3D)数值模拟软件,对其进行了模拟研究。通过模型建立以及模拟结果分析,得到无论哪一条上山先开始掘进,最终行人上山顶板沉降的位移量都是最大的;同时断层对2条上山的掘进影响很大,先掘进回风上山,有利于降低行人上山巷道围岩应力和顶板位移量;上山和顺槽掘进时,先掘进上山有利于巷道的支护。For pedestrian up the hill and return air up the hill and pedestrians up the hill and tape machine along the trough two cases of roof abscission layer and the effect of using FLAC3D numerical simulation software. The simulation study is carried out. Through the model building and simulation results analysis, it is obtained that the displacement of the roof settlement is the biggest in the end of the road. At the same time, fault of two uphill driving effect is very large, first advancing return go up into the mountain and conducive to reduce pedestrian uphill roadway surrounding rock should force and roof displacement. The mountain and slot when driving uphill before heading for roadway support.

关 键 词：行人上山 回风上山 带式输送机顺槽 顶板离层 数值模拟 

分 类 号：TD327[矿业工程—矿井建设]