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为研究条带开采工程岩体失稳特征,以峰峰集团万年矿区地层结构作为研究对象,通过室内试验得到各岩层物理力学参数,建立条带开采相似模拟试验模型,利用全站仪和应力应变传感器的测量数据得出条带开采工程岩体顶板、煤柱和底板的位移和应力的变化规律,以及其失稳和破坏特征,试验结果表明,条带开采的顶板、煤柱和底板为一整体,任何一子部分失稳都将影响条带开采工程岩体的稳定性。
In order to study the characteristics of rock mass instability in strip mining engineering, the stratum structure of Wanfeng mining area in Fengfeng Group was taken as the research object. The physical and mechanical parameters of each rock formation were obtained through laboratory tests. A similar simulation test model of strip mining was established. The results show that the top plate, coal pillar and bottom plate of strip mining are as follows: the top plate, the coal pillar and the bottom plate of the strip mining are As a whole, the failure of any one part will affect the stability of rock mass in strip mining.