大峪煤业软岩巷道全断面支护技术研究OA

Aiming at the problems that water rich and high-swelling mineral soft rock roadways in coal-bearing strata in Dayu Coal Industry are prone to mudding disintegration,as well as the support effect of the traditional anchor net cable is poor and deformation constraints on safe and efficient production,taking the west 102 roadway as the background,the surrounding rock conditions and deformation characteristics are systematically analyzed,based on the support mechanism of anchor rods and anchor cables,a full cross-section support scheme is proposed and parameters are determined.The on-site monitoring shows that the full cross-section support technology can effectively control the deformation of soft rock roadways,the displacements of the roof,floor,and two sides are minor,and the overall stability of roadways is good.The practice proves that the full cross-section support method has significant effects in supporting soft rock roadways,and the research results provide a reliable engineering practice basis for controlling the floor heave of soft rock roadways in similar mines.