条带开采与固体充填开采地表沉陷规律研究

目前，建筑物下采煤通常采用条带开采和充填开采，为了研究这2种建筑物下采煤方法的地表移动变形规律，结合花园煤矿条带开采和固体充填开采实测数据，分别进行了地表静态、动态移动变形规律分析。研究得出：条带开采走向边界角56°，固体充填开采走向边界角57°、上山边界角62°、下山边界角53°；两者的地表移动盆地特征基本符合传统垮落法开采地表沉陷规律，但两者动态移动变形规律与其相比有一定的差异，在工作面回采过程中两者地表点下沉速度较小，出现多处峰值现象，基本不存在传统垮落法开采地表急剧下沉的活跃阶段。最后反演出地表预计概率积分法模型各参数。上述研究将为类似矿区地表沉陷预计以及开采方案设计提供一定的参考和指导。

Research on Regularity of Surface Subsidence in the Strip Mining and Solid Backfill Mining

At present，the strip mining and backfilling mining are often used under buildings.In order to study the surface movement and deformation law of the two methods，combined with measured data of the strip mining and solid filling mining in Huayuan mine，study on the static，dynamic surface movement and deformation regularity respectively is made.It is shown as follows：strike boundary angle is 56° in the strip mining，and strike boundary angle，uphill boundary angle，downhill boundary angle are 57°，62°，53° separately in the solid filling mining.The subsidence basin features of the two methods are basically in line with the traditional caving mining，but the dynamic surface movement and deformation regularity of the two methods are different from the traditional caving mining.During the coal mining，sinking speed of the surface points is relatively small，more than one peak appears and almost no rapid sinking active phase of traditional caving mining exists.At last，the predicted parameters of probability integral method are inversed based on the measured data of the strip mining and solid filling mining in Huayuan mine.All the study above can provide some reference and guidance for predicting surface subsidence and designing of the coal mining in similar mining area.