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Research on Coordinated Control of Rockburst and Large Deformation Along the Gob-Side Entry in Extra-Thick Coal Seam

  • Sitao Zhu,
  • Fuxing Jiang,
  • Xiufeng Zhang,
  • Jinhai Liu

摘要

In the East China region, several coal mines have experienced serious rockburst accidents, and it is difficult to support in advance, frequently renovating roadways, that is, the problem of “coordinated control of rockburst and large deformation disasters” has become a common technical problem in China's deep mines. Existing theories cannot well explain the reasons for the above phenomena. This chapter takes the large deformation of the goaf along the 2302S ultra-thick coal seam comprehensive mining face of Shandong Xin Julong Mine as the background, explores the coordination control mechanism of rockburst and large deformation along the goaf of the deep well thick coal seam comprehensive mining face, and proposes corresponding control methods, in order to provide a basis for the coordination control of rockburst and large deformation along the goaf of the deep well thick coal seam comprehensive mining face.