Strata movement controlling effect of waste and fly ash backfillings in fully mechanized coal mining with backfilling face

查看全文 作　　者：Zhang [1,2]Jixiong;Zhang [1,2]Qiang;Huang [1,2]Yanli;Liu [3]Jinwei;Zhou [1,2]Nan;Zan [1,2]Dongfeng

机构地区：[1]School of Mines, China University of Mining & Technology, Xuzhou 221116, China;[2]State Key Laboratory of Coal Resources and Mine Safety, Xuzhou 221008, China;[3]Huayuan Mine, fining Sources of Energy Development Group Co. Ltd., fining 272100, China

出　　处：《Mining Science and Technology》索引2011年第21卷第5期,共6页

基　　金：provided by the National Natural Science Foundation of China(Nos. 50834004 and 51074165) 摘　　要：A fully mechanized coal mining with backfilling (FMCMB) provides advantages of safety and efficiency for coal mining under buildings, railways, and water bodies. According to the field geological conditions, we analyzed the controlling effect of strata movement by the waste and fly ash backfilling in FMCMB face. Based on the key strata theory, we established the equivalent mining thickness model, and analyzed the action of the bulk factor of backfilling body to the equivalent mining thickness. In addition, we numerically simulated the controlling function of the strata movement by backfilling bodies with differ- ent strength. And the numerical simulation result show that the deformation of stratum and the subsi- dence of surface can be controlled by FMCMB. The result provides references to the effective execution of fully mechanized coal mining with solid waste backfilling in goaf. 关键词：控制效果固体废物回填岩层移动综采煤炭开采开采厚度模拟地层

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Strata movement controlling effect of waste and fly ash backfillings in fully mechanized coal mining with backfilling face

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耦合文献(573)

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