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.

对红庙煤矿膨胀性软岩巷道存在的难题，给出了对性的巷道控制方案，并在实践中到了验证，有效地控制了红庙煤矿膨胀性软岩巷道的变形和破坏。