条带开采工程岩体稳定性模拟研究

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。

Simulation Research on Stability of Strip Mining Engineering Rock Mass

In order to study engineering rockmass instability characteristics of strip mining,taking strata structure in Fengfeng Group Wannian Coal Mine as the research object,rock physical and mechanical parameters were obtained from laboratory test,and strip mining similar simulation experiment model was established,using measurement data from total station instrument and stress strain sensor to obtain the displacement and stress change laws of strip mining engineering rock roof,coal pillar,floor as well as its instability and failure characteristics,the test results show that strip mining rock roof,coal pillar and floor were taken as a whole,any subset instability will affect the stability of strip mining engineering rock mass.