综采工作面上覆岩层位移特征相似模拟
Similar simulation of overburden displacement characteristics of fully mechanized mining face
【索引】徐小奔,胡祖祥,邢立奋,等.综采工作面上覆岩层位移特征相似模拟[J].工矿千亿国际app下载,2020,46(1):85-89.
【Reference】XU Xiaoben, HU Zuxiang, XING Lifen, et al. Similar simulation of overburden displacement characteristics of fully mechanized mining face[J].Industry and Mine Automation,2020,46(1):85-89.
【DOI】10.13272/j.issn.1671-251x.2019080047
【作者】徐小奔1,2,胡祖祥1,2,邢立奋3,郝学1,2
【Author】 XU Xiaoben1,2,HU Zuxiang1,2,XING Lifen3,HAO Xue1,2
【作者机构】1.安徽理工大学 煤矿安全高效开采省部共建教育部重点实验室, 安徽 淮南232001; 2.安徽理工大学 能源与安全学院, 安徽 淮南232001;3.山西平遥县兴盛煤化有限责任公司, 山西 平遥031100
【Unit】1.Key Laboratory of Safety and High-efficiency Coal Mining of Ministry of Education, Anhui University of Science and Technology, Huainan 232001, China; 2.School of Energy and Safety, Anhui University of Science and Technology, Huainan 232001, China; 3.Shanxi Pingyao Xingsheng Coal Chemical Co., Ltd., Pingyao 031100, China)
【摘要】以淮南矿业集团谢桥矿1232(1)综采工作面为工程背景,采用相似模拟实验方法,研究了煤层开采过程中上覆岩层位移特征。结果表明:① 随着综采工作面不断推进,垮落角基本保持不变,垮落带和断裂带高度逐渐增大,上覆岩层受采动影响不断增大。② 上覆岩层垂直位移峰值基本位于采空区中部,向两端逐渐减小,上覆岩层垂直位移曲线基本上呈对称分布;随着综采工作面推进距离增大,垂直位移峰值不断增大;随着距煤层距离的增大,上覆岩层垂直位移不断减小。
【Abstract】Taking 1232(1) fully-mechanized mining face of Xieqiao Mine of Huainan Mining Group as engineering background, overburden displacement characteristics during coal seam mining were studied by means of similar simulation experiment. The results show that with continuous advance of fully mechanized mining face, caving angle remains unchanged, caving zone and fault zone height increase gradually, and overburden are increasingly affected by mining. Peak value of overburden vertical displacement is located in the middle of goaf and decreases gradually at both ends. The overburden vertical displacement curve is symmetrical. With the increase of advancing distance of fully mechanized mining face, peak value of overburden vertical displacement increases continuously. With the increase of distance between overburden and coal seam, overburden vertical displacement decreases.
【关键词】 煤炭开采; 综采工作面; 巷道支护; 上覆岩层垂直位移; 相似模拟; 垮落带; 断裂带
【Keywords】coal mining; fully mechanized mining face; roadway support; overburden displacement; similar simulation; caving zone; fault zone
【文献出处】工矿千亿国际app下载,2020年1期
【基金】安徽省自然科学基金资助项目(1808085ME159)
【分类号】TD325
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