山区采动滑移对地表移动变形的影响分析

Effect Analysis of Slippage Caused by Underground Mining on Surface Movement and Deformation

以阳煤集团五矿三采区15#煤8303工作面地表移动变形观测站的实测资料为基础,在概率积分法的基础上考虑采动滑移的影响,分析了采动滑移对山区地表移动预计参数及地表移动变形状态的影响。用模拟求参的方法求出概率积分法地表移动变形预计参数;通过对观测站倾向B线与C线的对比分析,得出不同地形特征下山区采动滑移的特点。研究结果表明,在开采沉陷影响下,山区采动滑移是必然发生的;地形起伏越大,采动滑移对水平移动以及水平变形的影响越明显,且水平移动与水平变形的曲线波动越大。

Taking measured data of surface movement deformation observatory in Yangmei Group three mining area 15# coal 8303 work- ing face as base, the effect of slippage caused by underground mining on the basis of probability integration method is analyzed. The ar- ticle analyzed the effect of slippage on mountain surface movement parameters and surface movement deformation state. With the simu- lation for the reference, the article got the expected surface movement deformation parameters of probability integration method ; through the comparison and analysis in tendency B and C line, the mining slippage characteristics of different terrain features in the mountain region are concluded. The results are drawn as follows. Mining slippage is inevitable due to the impact of mining subsidence in mountainous ; the greater of terrain ups and downs, the more of obvious mining slippage on the influence of horizontal movement and horizontal deformation, at the same time, the greater of curve fluctuations of horizontal movement and horizontal deformation.