水库下采煤安全性评价分析  

Safety Evaluation and Analysis of Coal Mining under Reservoir

作　　者：裴书锋 魏福泽 刘晓飞 PEI Shufeng;WEI Fuze;LIU Xiaofei(College of Earth Science and Engineering,North China University of Water Resources and Electric Power,Zhengzhou 450046,China;Geological Disaster Prevention and Control Institute,North China University of Water Resources and Electric Power,Zhengzhou 450046,China;Zhengzhou Coal Industry(Group)Co.,Ltd.,Zhengzhou 450007,China)

机构地区：[1]华北水利水电大学地球科学与工程学院,郑州450046 [2]华北水利水电大学地质灾害防控研究所,郑州450046 [3]郑州煤炭工业(集团)有限责任公司,郑州450007

出　　处：《煤炭技术》2025年第1期135-139,共5页Coal Technology

基　　金：河南省自然科学基金项目(202300410269);河南平宝煤业有限公司科研项目(PB-2022-112)。

摘　　要：为了分析水库下采煤对水库及地表的影响,以某煤矿32采区为例,采用理论计算、数值模拟相结合的研究方法,分析了煤层开采后上覆岩层破坏形成的导水裂缝带高度,采用概率积分法和数值模拟得到了某煤矿地表水库地表最大下沉值和水平变形值。结果表明:导水裂缝带最大标高距底部的高差均大于250 m,导水裂缝带不会影响到水库安全,地表水平变形最大值远小于规定允许变形值,在地表水库下进行煤炭开采是安全的。通过32采区工作面的安全开采,验证了分析方法与结果的合理性。In order to analyze the impact of coal mining under reservoir on reservoir and surface,taking 32 mining area of a coal mine as an example,the research method combining theoretical calculation and numerical simulation was used to analyze the height of water-conducting fracture zone formed by overlying rock failure after coal mining.The maximum subsidence value and horizontal deformation value of a coal mine surface reservoir are obtained by probability integral method and numerical simulation.The results show that the height difference between the maximum elevation and the bottom of the water-guiding fracture zone is greater than 250 m,the water-guiding fracture zone will not affect the safety of the reservoir,and the maximum surface horizontal deformation is far less than the allowable deformation value,so it is safe to carry out coal mining under the surface reservoir.Through the safe mining of the working face in the 32 mining area,the rationality of the analysis method and the results are verified.

关 键 词：水库下采煤 导水裂缝带 地表沉降 数值模拟 

分 类 号：TD745[矿业工程—矿井通风与安全]