多源因素影响下矿区地表移动变形规律研究

Law of the surface movement and deformation in mining area under influence of multi-source

  • 摘要: 【目的】为了研究不同因素对矿区地下开采造成的地面移动变形规律的影响,对屯兰煤矿18403工作面岩移观测数据进行整理及计算,以求取地表移动变形值以及岩移参数。【方法】使用观测站实测数据作为研究样本(实际情况),概率积分法预测数据作为参照样本(无影响情况),使用对比分析法对多源因素下矿区地表移动变形规律进行系统的分析与研究,总结出不同因素对地表移动变形的作用机制以及表现形式。【结果】结果表明,矿区开采沉陷受多种因素的影响,使地表移动变形更加复杂且规律弱化,而多源因素中往往存在一种或几种主导因素对其规律影响较大。故对于多源因素影响下的开采沉陷规律的研究,应对地表移动变形的综合表现进行分解,从不同因素的影响机制出发准确研究开采沉陷规律。【结论】本研究为当地矿区开采沉陷规律研究提供了参考,为其他存在多源影响因素条件开采下的采空区重要建筑物的保护与防护提供了指导。

     

    Abstract: To investigate the impact of various factors on the surface movement and deformation induced by underground mining in mining areas,this study analyzed and computed rock movement observation data from the 18403 working face of Tunlan Coal Mine. Surface movement deformation values and rock movement parameters were derived from these data. The observed data from monitoring stations served as the research sample (real-world scenario),while predicted data from the probability integral method served as the reference sample (unaffected scenario). Comparative analysis was employed to systematically examine the surface movement deformation patterns in the mining area under the influence of multiple factors.The study summarized the mechanisms and manifestations of different factors affecting surface movement deformation. The findings indicate that mining subsidence in these areas is influenced by multiple factors,complicating the surface movement deformation patterns and weakening their predictability. Among these factors,certain dominant ones often exert a more significant influence on deformation patterns. Therefore,to accurately study the laws of mining subsidence under the influence of multiple factors,it is crucial to dis-aggregate the comprehensive performance of surface movement deformation and precisely investigate mining subsidence patterns based on the mechanisms of different influential factors.

     

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