受断层控制的下组煤开采底板变形特征及突水危险性探究  

Study on Deformation Characteristics of Floor and Water Inrush Risk of Mining Lower Coal Group by Fault

作　　者：王冰渡 张民 贾儒雅 朱术云[1] WANG Bingdu;ZHANG Min;JIA Ruya;ZHU Shuyun(School of Resources and Geosciences,China University of Mining and Technology,Xuzhou 221116,China;Yangcun Coal Mine,Yankuang Energy Group Company Limited,Jining 272118,China)

机构地区：[1]中国矿业大学资源与地球科学学院,江苏徐州221116 [2]兖矿能源集团股份有限公司杨村煤矿,山东济宁272118

出　　处：《煤炭技术》2023年第6期151-155,共5页Coal Technology

基　　金：国家自然科学基金科学部主任基金项目(41741020)。

摘　　要：为了探究杨村煤矿十采区下组煤17煤层首采10703工作面断层突水危险性,在系统分析其地质及水文地质条件基础上,确定了该工作面属于典型的受断层控制的带压开采范畴,主要突水含水层为十三-十四灰和奥灰。在此基础上,建立了集完整和有断层于一体的10703工作面所在区域的三维工程地质模型,采用数值模拟方法对比模拟获得了16上和17煤两薄煤层依次开采后受断层控制的底板变形破坏深度和特征。在此基础上,采用安全带压系数法系统评价了完整和有断层条件下十三-十四灰和奥灰对10703工作面带压开采突水危险性,结果认为均是安全的,与突水系数法结果进行了比较。研究结果对该工作面带压开采底板水防治具有很好的参考价值。In order to research the risk of water inrush in the first mining 10703 working face with fault of the No.17 lower coal group in the tenth mining area of Yangcun coal mine,based on the systematic analysis of the geological and hydrogeological conditions of the working face,it is determined that the working face belongs to the typical mining above confined aquifer and controlled by faults,and the main water inrush aquifers are 13-14 Carboniferous limestone and Ordovician limestone.On this basis,a 3D engineering geological model of 10703 working face was established,numerical simulation method was used to simulate the deformation and failure depth of floor controlled by fault after mining of thin lower coal group No.16up and 17 coal seams successively.The safety pressure coefficient method system to evaluate the integrity and fault conditions 13-14 limestone and the limestone water inrush risk of under pressure mining of 10703 working face,the results are all safe.The results of the water inrush coefficient method are compared.The research results have a good reference value for water prevention and control of floor water in mining with mining above confined aquifer in the working face.

关 键 词：下组煤 逆断层 底板变形特征 薄煤层 数值模拟 突水危险性 

分 类 号：TD745[矿业工程—矿井通风与安全]