The practice cf mining room first and then pillars by overhand cut and cemented fill is widely used in China, but the condition for pillars recovery in later period is normally worse.
先房后柱的上向分层胶结充填法在我国应用较为广泛,但矿柱后期回采条件较差。
2
By means of initial strain method, the plastic problem in cut-and-fillmining is solved by integration equation.
本文采用了初应变法提出非线性问题的边界积分方程并指出了在充填采矿中的应用。
3
The upward horizontal cutandfill stoping method and the measures for safe mining are recommended.