大冶铁矿巷道变形监测研究

为了解大冶铁矿尖林山巷道变形规律，在-40m水平布置了4个收敛计和3个多点位移计测试断面，经过一年多的观测，获得了满意的观测数据。对数据分析后，得到的主要结论为：巷道总体稳定性较好，出现大规模垮塌的可能性不大。巷道的顶板变形较小，其稳定性较好。巷道破坏主要出现在有进路一侧两进路之间的岩体上。巷道的破坏与采动有明显的相关关系，影响范围为100m左右。收敛监测系统能满足尖林山巷道生产期围岩稳定性预测预报的需要。

MONITORING STUDY ON DRIFT DEFORMATION OF DAYE IRON MINE

In order to study drift deformation of Daye Iron Mine,4 convergence monitoring sections and 3 multi-point displacement monitoring sections are arranged. Through monitoring over one year,satisfactory data are obtained. Based on the measured data,it can be concluded that the whole drift is stable,the possibility of larger collapse is not large,and the deformation of drift floor is small. The main failure of rocks occurs on the mining side. There is obvious relationship between failure and mining,and the influence scope ranges about 100 meters. Convergence-control system can meet the needs of rock stability prediction of Daye Iron Mine during its producing period.