Linkage-induced mechanism and control technology of pressure bump and surface geological damage in shallow coal seam mining of gully area

  • Jianwei LiEmail author
  • Changyou Liu
  • Wencai Wang
  • Chuangye Wang
Original Paper


Coal mining will cause pressure bump in mining face and surface landslide, subsidence, and another geological damage in shallow thick coal seam mining of gully region. To analyze the linkage-induced mechanism and mutual influence relation between underground pressure bump and surface geological damage. This paper proposes a novel approach to study the stress field, displacement field, and damage field distribution of overlying strata in coal seam mining under valley terrain. The influence of valley terrain on in situ rock stress field decreases with the increase of the buried depth of coal and rock. The coal and rock strata of different depth under gully terrain are divided into significantly affected area, moderately affected area, and non-influence area. Exploitation activities under a gully area are divided into uphill mining stage, slope top mining stage, and downhill mining stage. The pressure bump and surface geological damage are easily linkage induced at the uphill mining stage. Based on the control of underground and surface damage of shallow thick coal seam mining in gully region, the slicing mining and filling mining of thick coal seam are put forward.


Gully area Shallow thick coal seam Pressure bump Surface geological damage Control technology 



The research work is supported by the “National Natural Science Foundation of China (51864036, 51574220),” “Program for Young Talents of Science and Technology in Universities of Inner Mongolia Autonomous Region (NJYT-19-B33),” “Inner Mongolia Natural Science Foundation Project (2018BS05009),”  “Inner Mongolia Autonomous Region College Scientific Research Project (NJZY18145),” and “Innovation Fund Project of Inner Mongolia University of Science and Technology (2017QDL-B11),” for which are gratefully acknowledged.


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Copyright information

© Saudi Society for Geosciences 2019

Authors and Affiliations

  • Jianwei Li
    • 1
    Email author
  • Changyou Liu
    • 2
  • Wencai Wang
    • 1
  • Chuangye Wang
    • 1
  1. 1.Institute of Mining EngineeringInner Mongolia University of Science and TechnologyBaotouChina
  2. 2.School of MinesChina University of Mining and TechnologyXuzhouChina

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