Optimization study on supporting parameters of mining roadway in fully-mechanized mining face under soft rock geological conditions
Ma Jinwu
Abstract：The roof and floor of+170 m level No.22 coal seam in of Dananhu No.5 mine in Hami,Xuzhou Coal Mining Group,are soft rock surrounding rock with poor cementation and relatively broken;the hardness of coal seam is low,and the fissures and joints are de-veloped.It causes large deformation of the roadway and makes it difficult to drive.In order to improve the driving efficiency of mining roadway and reduce the later maintenance cost of mining roadway,taking No.42204 fully-mechanized mining face mining roadway of No.22 coal seam as the research object,the deformation and failure characteristics of the roadway surrounding rock under the original supporting design scheme were analyzed.A targeted optimization scheme for the supporting of the mining face was proposed and applied on site.The application results show that the optimization supporting scheme has achieved good implementation effect,realizing safe,ef-ficient and rapid driving of the No.42204 fully-mechanized mining face mining roadway.
Keywords：soft rockmining roadwaysupporting parameter optimizationsafe and fast driving
Publication Date：2025-04-30
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 14-19 )