中文摘要：

为了有效控制和治理采动薄基岩浅埋深煤层地表动态移动,以神府东胜矿区上湾煤矿51101 工作面为例,通过为期6 个月的现场地表移动监测,深入研究了薄基岩浅埋深煤层下开采地表动态移动特征,对开采引起的地表裂缝形态及闭合的原因进行了分析,得出起动距、超前影响角、地表最大下沉速度及最大下沉速度滞后角等岩层移动参数.研究结果表明：薄基岩浅埋深煤层下综放开采具有地表移动剧烈、持续时间短、地表下沉速度大、起动距偏大等特点,且地表动态移动表现出初始期、活跃期短而衰退期较长等特点,地表裂缝发育的平面几何形态呈椭圆形,采空区外受开采影响的范围约60 m.

英文摘要：

In order to effectively control the dynamic movement of surface above the shallow-buried coal seam with thin bedrock in the process of mining, in this paper, further study was carried out on the dynamic characteristics of the surface movement above the shallow-buried coal seam with thin bedrock during mining by taking 511011 working face in Shangwan Mine in Shenfu Dongsheng Coal Mining Area as an example and through six-month site surface movement monitoring, analysis was made on the shape and closing causes of surface cracks induced by mining, and the rock movement parameters were obtained, including the initial distance, the angle of advance influence, the maximum subsidence velocity of surface and the lag angle of maximum subsidence velocity. The study results indicated that the fully mechanized caving mining of the coal seam with thin bedrock had the features of intensive surface movement, short duration, rapid surface subsidence velocity and larger initial distance, the dynamic movement of the surface was featured by short initial and active period and longer degenerating period, the plane geometrical shapes of surface cracks development was oval, and the range affected by mining beyond the gob was about 60 m.