摘要
The working condition of the hydraulic support in working face can be divided into three kinds of situations in the following: roof fall and collapse with cavity,advancing support and supporting.Took single support with four-pole in longwall face to the dip as research object,control method was studied to avoid support instability in three situations mentioned above.Based on these researches,the major factors of influencing on support stability and its controlling measures were put forward.According to specific conditions of working face 1215(3),which is fully-mechanized and Iongwall face to the dip with great mining height in Zhangji Coal Mine,Huainan Mining Group,the effective measures was taken to control supports stability.
The working condition of the hydraulic support in working face can be divided into three kinds of situations in the following: roof fall and col,lapse with cavity, advancing support and supporting. Took single support with four-pole in Iongwall face to the dip as research object, control method was studied to avoid support instability in three situations mentioned above. Based on these researches, the major factors of influencing on support stability and its controlling measures were put forward. According to specific conditions of working face 1215(3), which is fully-mechanized and Iongwall face to the dip with great mining height in Zhangji Coal Mine, Huainan Mining Group, the effective measures was taken to control supports stability..
关键词
倾斜煤层
水力开采
煤炭开采
煤层高度
longwall face to the dip, fully-mechanized working face with great mining height, supports stability control