In coal mine roadway construction and operation,due to the insufficient strength and poor stability of rock mass,disasters such as roof collapse and water gushing often occur.Taking the gob side entry retaining of Shanxi A Mine as the research object,through field investigation and analysis of surrounding rock deformation,a comprehensive support scheme of"pre-grouting+anchor cable net+U-shaped steel+shotcrete"was proposed,the effectiveness of the scheme was verified through numerical simulation and practical application,the deformation of surrounding rock was effectively controlled,and the stability of the roadway was enhanced.It can provide a feasible solution for the construction of similar geological conditions.
关键词
围岩变形/沿空留巷/综合支护
Key words
surrounding rock deformation/gob side entry retaining/comprehensive support
维普
万方数据