断层构造对煤层裂隙发育影响研究——以棋盘井煤矿(东区)为例  

Study on influence of fault structure on coal seam fissure development:A case study of Qipanjin Coal Mine(east district)

作　　者：刘海洋 鲁欣 安又新 王占军 祁凯 刘鹏 Liu Haiyang;Lu Xin;An Youxin;Wang Zhanjun;Qi Kai;Liu Peng(Guoneng Mengxi Coal Chemical Co.,Ltd.,Ordos 016064,China;CHN Energy Coal Coking Company,Wuhai 016000,China;CCTEG Xi′an Research Institute(Group)Co.,Ltd.,Xi′an 710076,China)

机构地区：[1]国能蒙西煤化工股份有限公司,内蒙古鄂尔多斯016064 [2]国家能源集团煤焦化公司,内蒙古乌海016000 [3]中煤科工西安研究院(集团)有限公司,陕西西安710076

出　　处：《能源与环保》2024年第11期37-41,48,共6页CHINA ENERGY AND ENVIRONMENTAL PROTECTION

基　　金：陕西省重点研发计划(2024GX-YBXM-492);陕西省自然科学基础研究计划(2024JC-YBQN-0272)。

摘　　要：为揭示断层构造对煤层中裂隙系统发育的影响,以国能蒙西棋盘井煤矿(东区)为例,现场实测裂隙条数,通过裂隙分布与断层面距离的相关性曲线,分析断层对裂隙发育的影响。研究表明,断层构造对煤层裂隙发育具有控制作用,不同强度正、逆断层对煤层裂隙发育具有差异性;断层上下盘对煤层裂隙发育影响不同,正断层上盘裂隙发育数量多、产状大,分布曲线呈多峰型,而下盘裂隙密集区少,分布曲线呈单峰型;逆断层上盘裂隙发育呈先增大再减小后趋于稳定形式;依据不同强度断层落差大于4 m时,裂隙分布曲线为多峰型,而落差小于4 m时,分布曲线显示为单峰型。研究结果对科学指导工程实践具有重要意义。In order to reveal the influence of fault structure on the development of fracture system in coal seam,taking Guoneng Mengxi Qipanjing Coal Mine(east district)as an example.The impact of faults on fracture development was analyzed through the correlation curves between fracture distribution and fault plane distance.The research shows that the fault structure has a controlling effect on the development of coal seam fractures,and the normal and reverse faults with different strength have different effects on the development of coal seam fractures;the influence of the hanging wall and footwall of the fault on the development of coal seam fractures is different.The hanging wall of the normal fault has a large number of fractures,with a large occurrence and a multi peak distribution curve,while the footwall has less concentrated fracture areas and a single peak distribution curve;the fracture development in the hanging wall of the reverse fault increases first,then decreases,and then tends to be stable;when the fault drop of different intensities is greater than 4 m,the distribution curve of fractures is multimodal,while when the drop is less than 4 m,the distribution curve shows a unimodal pattern.The research results are of great significance for scientifically guiding engineering practice.

关 键 词：断层构造 煤层 裂隙发育 分布特征 

分 类 号：TD325[矿业工程—矿井建设]