dilatable

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.

针对红庙煤矿膨胀性软岩巷道存的难题，给出了针对性的巷道控制方，实践中到了验，有地控制了红庙煤矿膨胀性软岩巷道的变形和破坏。