强含水层下巷式充填采煤覆岩破坏规律研究  

Numerical Simulation on the overlying strata failure law of roadway backfill under strong aquifer

作　　者：董羽[1,2] 黄玉诚[2] 刘刚[1] 史俊伟[1] DONG Yu;HUANG Yu-cheng;LIU Gang;SHI Jun-wei(School of Management Science and Engineering,Shandong Institute of Business and Technology,Yantai 264005,China;School of Resources and Safety Engineering,China University of Mining and Technology（Beijing）,Beijing 100083,China)

机构地区：[1]山东工商学院管理科学与工程学院,山东烟台264005 [2]中国矿业大学(北京)资源与安全工程学院,北京100083

出　　处：《煤炭工程》2018年第10期126-129,共4页Coal Engineering

基　　金：山东工商学院博士启动基金项目(BS201522);山东工商学院青年基金(2015QN014)

摘　　要：为了进一步研究强含水层下巷式充填覆岩的移动变形机理,得到巷式充填覆岩导水裂隙带发育规律,利用FLAC3D数值模拟软件,结合公格营子矿区的地质条件建立矿区三维模型,模拟导水裂隙带的发育情况。分别模拟分析了采厚、充填率及充填体弹性模量三种影响因素下巷式充填导水裂隙带的发育情况,回归分析得出了各影响因素下导水裂隙带的高度公式。公格营子矿巷式充填开采结果表明,强含水层下巷式充填采煤是安全可行的且经济效益显著。In order to further study the movement and deformation mechanism of overlying strata with roadway backfill under the strong aquifer and to obtain the development law of the water-conducting fissure zone,the coal mine 3 D model is established combining with the geological conditions of the Gonggeyingzi Mining Area,then FLAC^3 D numerical simulation software is utilized to simulate the development of the water-conducting fissure zone in the coal mine. In this paper,the development of water-conducting fissure zone under three influence factors,such as mining thickness,filling rate,and elastic modulus of backfill,are simulated respectively. The height formulas of water-conducting fissure zone with different influence factors are obtained by regression analysis. The practice results show that,it is safe and feasible to use roadway backfill mining under the strong aquifer,and the economic benefit is remarkable.

关 键 词：含水层 巷式充填 覆岩破坏规律 导水裂隙带 数值模拟 

分 类 号：TD325[矿业工程—矿井建设]