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.

针对煤矿膨胀性软岩存在难题，给出针对性控制方案，并在实践中到验证，有效地控制煤矿膨胀性软岩变形和破坏。