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通过对古汉山矿井底车场软岩巷道变形破坏特征的分析,研究了软岩巷道不稳定机理,指出软岩巷道不稳定的变形过程中持续性的水平变形是关键因素,在现场实测基础上对这种持续变形进行了数值上的描述,并研究分析了冯营矿二四下山及一四流水巷支护体变形破坏的原因,根据分析,采用了料石底拱加半圆拱砌碹的方式控制持续变形,实测数据证明,控制方式有效。
Through the analysis of the deformation and failure characteristics of soft rock roadway in the mine floor of Guhanshan Mine, the instability mechanism of soft rock roadway is studied. It is pointed out that the key factor is the continuous horizontal deformation during the unstable deformation of soft rock roadway. Based on the field measurement This continuous deformation is numerically described, and the causes of the deformation and failure of the supporting body in the downhill and the fourteenth-flow tunnel of Fengying Mine are analyzed. According to the analysis, Continuous control of deformation, the measured data show that the control method is effective.