Formation mechanism and height calculation of the caved zone and water-conducting fracture zone in solid backfill mining

查看全文 作　　者：Lei [1,2]Li;Fengming [3]Li;Yong [1]Zhang;Daming [4]Yang;Xue [2]Liu

机构地区：[1]School of Energy and Mining Engineering,China University of Mining and Technology(Beijing),Beijing 100083,China;[2]China Coal Research Institute,Beijing 100013,China;[3]China Coal Technology&Engineering Group(CCTEG)Central Research Institute,Beijing 100013,China;[4]College of Mining and Geomatics Engineering,Hebei University of Engineering.Handan 056000,China

出　　处：《International Journal of Coal Science & Technology》索引2020年第7卷第1期,共8页

基　　金：Supported by the National Key R&D Program(2018YFC0604501). 摘　　要：To study the heights of the caved zone and water-conducting fracture zone in backfill mining,the failure mechanism of strata during backfill mining was analyzed,and a method for determining the heights of the two zones was proposed based on key strata theory.The movement and failure regularity of the strata above the backfilling panel were revealed through numerical simulation.Considering the geologic conditions of the CT101 backfilling panel,the height of the fracture zone was determined using the proposed method along with empirical calculation,numerical simulation,and borehole detection.The results of the new calculation method were similar to in situ measurements.The traditional empirical formula,which is based on the equivalent mining height model,resulted in large errors during calculation.The findings indicate the reliability of the new method and demonstrate its significance for creating reference data for related studies. 关键词：Backfill mining Strata failure Key strata Heights of caved and fracture zones

相关文献

参考文献（26）
引证文献（5）
耦合文献（1579）

参考文献(26)

引证文献(5)

耦合文献(1579)

互联网出版许可证新出网证(渝)字10号全国400电话 - 免长途话费

Formation mechanism and height calculation of the caved zone and water-conducting fracture zone in solid backfill mining

参考文献(26)

引证文献(5)

耦合文献(1579)

用户提示