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为研究山东黄河北煤田开采地表沉陷规律,在黄河北煤田的邱集煤矿的西一采区建立了地表沉陷观测站,并按有关规程要求进行了观测,结合其他矿区的地表沉陷规律,利用回归分析法对所取得的观测数据进行研究,分析出山东黄河北煤田的开采沉陷特征,黄河北煤田的地表沉陷符合概率积分法,获得其参数分别为下沉系数0.86,主要影响角正切1.55,影响传播角89,°拐点移动距0得出了其下沉系数大、主要影响角正切偏小的特厚松散层的地表沉陷特点。
In order to study the law of surface subsidence in the mining of Huanghebei coalfield in Shandong Province, a surface subsidence observatory has been set up in the first mining area of Qiuji coal mine in the Yellow River North Coalfield and observed according to the relevant regulations. Combined with the law of surface subsidence in other mining areas, Analytical method The obtained observation data are analyzed to analyze the characteristics of mining subsidence in Huanghebei coalfield in Shandong Province. The surface subsidence of the Huanghebei coalfield complies with the probability integral method, and the parameters are respectively the subsidence coefficient of 0.86 and the main influence of the tangent of 1.55, The propagation angle of 89 ° and the shift of 0 ° from the inflection point obtained the characteristics of the surface subsidence of the extremely loose layer whose subsidence coefficient is large and the main influence angle tangent is small.