Three wellbore in soft rock in construction of the first coal of five jian fang, Tells the encountered in the construction process of the weak dilatability layers, In the construction of appear tunnel deformation, The larger of displacement of phenomenon, Aiming at this phenomenon is analyzed, Summarizes the construction process of experience, To take corresponding measures, just smoothly through the soft rock section.%五间房一矿三井筒在软岩中施工,讲述了施工过程中遇到的弱膨胀性岩层,在施工中出现巷道变形、移近量大的现象,针对该现象进行分析,总结施工过程中的经验,采取对应措施,才得以顺利通过了软岩段.
展开▼
