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.

针对庙煤矿膨胀性软岩存在的难题，给出针对性的方案，并在实践中到验证，有效地庙煤矿膨胀性软岩的变形和破坏。