Aiming at difficulties in supporting dilatable soft rock roadway, control method was put forward to control effectively deformation and failure of dilatable soft rock roadway in Hongmiao Colliery.
针对

矿膨
软岩巷道存在的难题,给出了针对
的巷道控
方案,并在实践中得到了验证,有效地控
了

矿膨
软岩巷道的变形和破坏。
力文摘
讲精选
重要影响,而且可以影响你整个未来财务水平。
讲协有种
起来很棒的福利


