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 mining surface ground subsidence law of Shandong coalfield in the north of Yellow River, a surface ground subsidence observation station was established at West No.1 Mining Block of Qiuji Mine of Shandong coalfield in the north of Yellow River. According to the related regulations, the observations were conducted.In combination with the surface ground subsidence laws of other mining areas, the regression analysis method was applied to study the observation dat a obtained.The mining subsidence features of Shandong coalfield in the north of Yellow River was analyzed. The surface ground subsidence of Shandong Coalfield in th e north of Yellow River could meet the probability integration. The parameters obtained were individually 0.86 of the subsidence coefficient.The main influence angle tan gent was 1.55, the influence propagation angle was 89°，the yielding point moving distance was 0.The surface ground subsidence features of the ultra thick soft layer w ould be large in the subsidence coefficient and small in the main influences angle tangent.