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由中国矿业大学和淮南矿务局承担的《软岩巷道支架壁后充填的试验研究》课题经专家审查后,1992年6月1日通过技术鉴定。支架壁后充填是提高软岩巷道支护质量的重要措施,淮南谢一矿的岩石巷道多数位于松软的泥岩内,加之采深较大,巷道在掘进过程中会引起围岩强烈变形,不仅砌碹之类的刚性支架很快遭到破坏,即使U形钢可
By the China University of Mining and Huainan Mining Bureau to undertake “soft rock roadway support wall after the filling of the pilot project” subject to review by the experts, on June 1, 1992 passed the technical appraisal. The backfilling of the support wall is an important measure to improve the supporting quality of soft rock roadway. Most of the rock tunnels in Xieyi Mine of Huainan are located in soft mudstone. In addition, the mining depth is relatively large, and the roadway can cause strong deformation of surrounding rock during excavation. Rigid rigid brackets quickly get damaged, even though the U-shaped steel can be