Stability Control of Underground Roadways Subjected to Stresses Caused by Extraction of a 10-m-Thick Coal Seam: A Case Study
作者: Yong ChenShuqi MaYang Yu
作者单位: 1China University of Mining and Technology
2Southwest Jiaotong University
3Xuzhou University of Technology
刊名: Rock Mechanics and Rock Engineering, 2017, Vol.50 (9), pp.2511-2520
来源数据库: Springer Nature Journal
DOI: 10.1007/s00603-017-1217-z
关键词: Thick coal seamLongwall top coal caving methodStability controlCoal pillar widthImpact rangeUnderground roadway
英文摘要: Extraction of a 10-m-thick coal seam in one single lift using the longwall top coal caving method caused severe deformations in underground roadways in Majialiang coal mine in Shanxi Province, China. Field monitoring of stress changes in the roof and in the coal pillar, and deformation of the 14202 tailgate, were carried out. The deformation monitoring found that the maximum floor heave of the 14202 tailgate was 1.85 m when the monitoring point was 250 m behind the longwall working face, while the maximum roof subsidence and the maximum rib–rib convergence was 0.93 and 1.14 m, respectively. The deformation rate of the 14202 tailgate increased dramatically when the monitoring point was at distances of 100–150 m behind the longwall working face, which reflected the fact that the tailgate...
原始语种摘要: Extraction of a 10-m-thick coal seam in one single lift using the longwall top coal caving method caused severe deformations in underground roadways in Majialiang coal mine in Shanxi Province, China. Field monitoring of stress changes in the roof and in the coal pillar, and deformation of the 14202 tailgate, were carried out. The deformation monitoring found that the maximum floor heave of the 14202 tailgate was 1.85 m when the monitoring point was 250 m behind the longwall working face, while the maximum roof subsidence and the maximum rib–rib convergence was 0.93 and 1.14 m, respectively. The deformation rate of the 14202 tailgate increased dramatically when the monitoring point was at distances of 100–150 m behind the longwall working face, which reflected the fact that the tailgate...
全文获取路径: Springer Nature  (合作)
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来源刊物:
影响因子:1.16 (2012)

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关键词翻译
关键词翻译
  • tailgate 尾板
  • pillar 
  • mining 矿业
  • width 幅度
  • monitoring 监视
  • longwall 长壁工祖
  • behind 在后
  • underground 地下的
  • caving 塌落
  • roadway 车道