Supporting Technology for Stress Venting Zone of Digging Roadway
Based on the influence of geological structure during the excavation of 2117 roadway in Ma Zhiliang Mine,there are many local leakage phenomena in 315～370 m section of the roadway,and the joint support effect of using traditional anchor rods(ropes)and I-beam sheds is poor,so we decided to optimize the support of local leakage area by adopting the joint support measure of"Anchor trapezoidal shed+gangue blocking bracket+artificial false top"through the technical research.Through the technical research,it is decided to adopt"anchor cable trapezoidal shed+block gang bracket+artificial false roof'joint support measures for the support optimisation of local leakage area.
NETL
NSTL
万方数据
维普
