考虑断层渗透性的断层防水煤柱合理尺寸留设研究  

Study on Reasonable Size of Fault Waterproof Coal Pillar Considering Fault Permeability

作　　者：周长建 乔洋 张洪水 ZHOU Changjian;QIAO Yang;ZHANG Hongshui(Nantun Coal Mine,Yankuang Energy Group Co.,Ltd.,Jining 273515,China;Zaozhuang Mining Group Gaozhuang Coal Mining Co.,Ltd.,Zaozhuang 272100,China)

机构地区：[1]兖矿能源集团股份有限公司南屯煤矿,山东济宁273515 [2]枣庄矿业集团高庄煤业有限公司,山东枣庄272100

出　　处：《煤炭技术》2025年第2期86-90,共5页Coal Technology

摘　　要：为解决煤矿开采中断层隔水煤柱合理尺寸的留设问题,以南屯煤矿为例,综合分析了该煤矿地质环境的影响因素。在实际开采过程中,针对断层导水性进行了评价。随后,采用岩性对接关系分析和泥岩涂抹系数法对断层的横向导水性进行了评估,并运用“水岩应力作用分析法”评价了断层的垂向导水性。在此基础上,分区域进行了断层防隔水煤柱留设研究,并基于断层的导水性特征提出了防水煤柱留设的方法,对煤柱的安全性进行了分析。研究结果对于预防和控制断层突水具有实际意义。In order to solve the problem of reasonable size of fault waterproof coal pillars in coal mining,take Nantun coal mine as an example to comprehensively analyze the influencing factors of the geological environment of the coal mine.In the actual mining process,the water conductivity of the fault was evaluated.Subsequently,the lateral water conductivity of the fault was evaluated by the lithology docking relationship analysis and the mudstone smear coefficient method,and the vertical water conductivity of the fault was evaluated by the"water-rock stress analysis method".On this basis,the study of fault waterproof coal pillar retention was carried out in different regions,and the method of waterproof coal pillar retention was put forward based on the water conductivity characteristics of fault,and the safety of coal pillar was analyzed.The research results have practical significance for preventing and controlling fault water inrush.

关 键 词：流固耦合 导水性 断层 防水煤柱 

分 类 号：TD822[矿业工程—煤矿开采] TD745[矿业工程—矿山开采]