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存题，给出了针对性控制方案，并实践中到了验证，有效地控制了红庙煤矿膨胀性软岩变形和破坏。