童亭煤矿10111回采工作面煤柱合理留设分析  

Analysis of Reasonable Pillar Retention in 10111 Stoping Face of Tongting Coal Mine

作　　者：赵宇 杨本水 周恒 ZHAO Yu;YANG Benshui;ZHOU Heng(School of Civil Engineering,Anhui Jianzhu University,Hefei Anhui 230601)

机构地区：[1]安徽建筑大学土木工程学院,安徽合肥230601

出　　处：《湖北理工学院学报》2025年第2期41-47,共7页Journal of Hubei Polytechnic University

基　　金：国家自然科学基金项目(项目编号:51774007)。

摘　　要：为解决煤矿开采中断层防(隔)水煤柱合理留设的难题,以童亭煤矿10111工作面为研究对象,基于工作面水文地质条件,采用瞬变电磁探测和地面水文钻孔探查确定CF8断层为不含、导水断层;依据FLAC 3D软件模拟煤层开采时留设不同宽度防(隔)水煤柱下煤层顶底板应力、位移和塑性区围岩破坏规律,分析采空区围岩破坏和断层破碎带之间的联系,确定CF8断层上盘在至少留设15 m宽防(隔)水煤柱的条件下,采空区和断层之间不会形成新的导水裂隙通道,避免造成突水危害,并具备安全开采条件。To resolve the challenge of reasonably designing water-resistant(isolating)coal pillars for faults in coal mining,this study focused on the 10111 working face of the Tongting Coal Mine.Based on the hydrogeological conditions,transient electromagnetic detection and surface hydrogeological drilling confirmed that the CF8 fault was non-water-bearing and non-conductive.FLAC 3D simulations were conducted to investigate the stress,displacement,and plastic zone damage patterns in the coal seam roof and floor under different widths of water-resistant(isolating)coal pillars during mining.The correlation between goaf surrounding rock failure and the fault fracture zone was analyzed.Results demonstrate that reversing a water-resistant(isolating)coal pillar of at least 15 m width in the CF8 fault hanging wall prevents new water-conducting fissure channels between the goaf and fault,effectively avoiding water inrush risks while ensuring safe mining conditions.

关 键 词：FLAC 3D 数值模拟 安全性 断层煤柱 

分 类 号：TU42[建筑科学—岩土工程] TD325[建筑科学—土工工程]