Showing 61 - 70 results of 70 for search '"Jincheng"', query time: 0.03s Refine Results
  1. 61

    Gas drainage and utilization in coal mines in China: History, technological advances, and prospects by Guofu LI, Chao LI, Bichuan ZHANG, Yun XU, Zheng WANG, Xianjun ZHOU

    Published 2025-01-01
    “…In combination with the differences in geological conditions of gas in varying mining areas, three typical gas drainage modes have been formed: the surface-underground combined gas drainage mode through “four-zone linkage” in the Jincheng mining area in Shanxi Province (the new Jincheng mode), the protective layer mining mode for broken-soft and low-permeability coal seams in the Huainan-Huaibei area in Anhui Province (the Huainan-Huaibei mode), and the hydraulically enhanced permeability mode of the Songzao mining area in Chongqing City (the Songzao mode). …”
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    Key Technology Research on the Rapid-Molding In-Closed Retaining-Wall in Filling Mining by Chaowen Hu, Qian Li, Yilong Wang, Ke Chang, Yongyuan Li, Yaqian Wang, Hui Liu

    Published 2022-01-01
    “…Taking Wangtaipu coal mine of the Shanxi Jincheng Anthracite Coal Mining Group as the engineering background, in order to solve the problem of traditional closed brick wall at the end of working face, which consumes a lot of manpower and material resources, and low efficiency, a technology of rapid-molding in-closed retaining-wall was proposed. …”
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  4. 64

    Study on Distribution Law of Ground Stress in Main Coal Seam of Qinshui Coalfield by Feng Youliang, Wu Longyun

    Published 2025-01-01
    “…The maximum horizontal principal stress in the Yangquan and Changzhi mining areas for both coal Seams 3# and 15# is concentrated in the NE direction, whereas in the Jincheng mining area, it is predominantly concentrated in the NW direction, indicating a clear directionality. …”
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