冻结立井井架基础不均匀沉降处理方法

Treatment Method of the Uneven Subsided Head-frame Foundation of Freezing Vertical Shaft

屯留煤矿南回风井立井井筒凿井过程中,由于井筒解冻,造成井架基础不均匀沉降的状况,经采取措施,加固井架基础后,解决了井筒沉降问题。该方法可供出现类似情况的矿井在处理上作参考。

In the process of sinking vertical shaft of ventilation shaft in Tunliu Coal Mine, the shaft thaws to result in the uneven subsidence of head-frame foundation, solves the problem of shaft subsidence after taking measures to reinforce head-frame foundation. The method provides a reference for treating the mine of similar happening.