中文摘要：

以木城涧煤矿大台井845工作面为背景，利用聚苯乙烯泡沫塑料作为充填体，采取随采随充的方式，对急倾斜煤层矸石充填开采过程进行了相似模拟实验，研究了急倾斜煤层充填开采的覆岩运移规律。研究表明：急倾斜煤层充填开采过程中，顶板不易垮落，采空区上部岩层存在冒落带和裂隙带等两带区域，最终形成倾斜的非对称的梯形冒落拱；聚苯乙烯泡沫塑料块可以较好的模拟松散矸石的块体堆积，起到支撑和让压作用；随采随充的充填开采方式把握了充填时机，有效地控制了顶底板的裂隙扩展和应力集中，降低了顶底板变形速度和变形量，避免了围岩冲击，完善了急倾斜煤层采煤法。

英文摘要：

Based on No. 845 coal mining face in Datai Mine Shaft of Muchengjian Mine as a background, the application of polystyrene foam plastics as a backfill material, with a backfill after mining method, a similar simulation experiment was conducted on a coal refuse backfill mining process in a steep inclined seam and a overburden strata migration law of the backfill mining in the steep inclined seam was studied. The study showed that during the backfill mining process in the steep inclined seam, the roof was hard to fall down, there was a roof falling zone and crack zone in the upper strata above the goaf and finally an inclined asymmetric ladder - shaped falling arch was formed. The polystyrene foam plastics blocks could be well applied to simulate bulk coal refuse block piles and could play a support and yield function. The backfill mining method with a backfill after a mining could well handle a backfill time, could effectively control the cracking expanded and stress concentrated of the roof and floor, could reduce the deformation speed and deformation value of the roof and floor, could avoid the surrounding rock outburst and could improve the mining method of the steep inclined seam.