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下部矿体回采对上盘斜井稳定性影响规律研究

Yingwei ZHONG

Mining Research and Development（2015）

Cited 23|Views0
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Abstract
为解决某矿在下部采场回采影响下上盘斜井安全稳定性问题,应用3Dmine-FLAC3D软件平台,对该矿在不同深度采场分步回采环境下上盘斜井的塑性区、应力应变变化规律及变形机理进行了研究.结果表明:上盘斜井无塑性区贯通,应力变化趋势较平稳,局部顶板会出现应变速率增大现象.针对该矿上盘斜井失稳规律,拟定相关的综合处理技术措施.该矿山实施留设临时保安矿柱十废石充填十局部喷锚网支护的方案后,斜井地压控制作用明显.
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Key words
inclined shaft,hanging wall,lower orebody,stability,mining
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