微震监测技术在浅埋深采场顶板破坏研究中的应用  

Application of Micro-seismic Monitoring Technology in Research of Roof Damage in Shallow-buried Coal-seam

作　　者：马正龙 邵化振[2] 周伟 续文峰[4] 任艳芳[5,6] 

机构地区：[1]国网能源开发有限公司矿业管理部,北京100033 [2]兖州煤业股份有限公司综机管理中心,山东邹城273500 [3]内蒙古伊泰集团有限公司大地精煤矿,内蒙古鄂尔多斯017000 [4]新汶矿业集团伊犁能源开发有限公司工程技术部,新疆伊犁835000 [5]天地科技股份有限公司开采设计事业部,北京100013 [6]煤炭科学研究总院开采设计研究分院,北京100013

出　　处：《煤矿开采》2012年第6期79-81,55,共4页Coal Mining Technology

基　　金：国家科技支撑计划项目(2008BAB36B01;2008BAB36B12)

摘　　要：为了研究浅埋深长壁工作面顶板运动规律,利用微震监测技术对浅埋深采场上覆岩层活动规律进行现场监测研究。研究结果表明,大地精煤矿3301工作面开采后,顶板岩层全部破断,底板破坏深度约为15～20m;3301工作面顶板中主要承载岩层为10.02m中粒砂岩;由顶板破坏或顶板结构失稳造成的压力到传递至工作面需一定时间,这表明加快工作面推进速度在一定程度上能够降低工作面切顶压架风险。研究成果对类似条件工作面顶板管理具有参考价值,为浅埋深长壁采场顶板运动规律研究提供了一种新的方法。#In order to obtain roof movement rule of long-wall mining face in shallow-buried coal-seam, micro-seismic monitoring technology was applied. Monitoring result showed that roof strata all broke and floor damage depth was 15 - 20m after mining 3301 face, and main load bearing strata was 10. 02m medium-coarse sandstone. Procedure of pressure caused by roof broken and roof structure instability transferring to mining face needed some time, which proved speeding mining would reduce support crushed risk in some degree. Research result could provide reference for roof control of mining face with similar condition and put forward a new method for researching roof movement rule of shallow-buried long-wall mining face.

关 键 词：微震监测 浅埋煤层 覆岩结构 矿压规律 

分 类 号：TD323[矿业工程—矿井建设]