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根据榆树井煤矿地质构造、岩石松软破碎、围岩遇水泥化等特点,对回采巷道选择专门支护形式,满足支护要求,保证了巷道长期稳定及安全施工。
According to the geological structure of Yushujing coal mine, loose rock fragmentation and cementing of surrounding rock, special support forms for mining gateway are chosen to meet the requirements of support and ensure long-term stability and safe construction of roadway.