随着神东矿区的开发，我国学者对薄基岩浅埋煤层进行了深入的研究，得出了典型浅埋煤层工作面上覆岩层移动以及矿压显现规律，很好地指导了现场生产。近几年随着神东矿区工作面的加长、采高的逐渐增大、上覆岩层基岩厚度增大，厚基岩浅埋煤层覆岩移动和矿压显现规律研究无疑成为了新问题。 本文针对乌兰木伦煤矿61203工作面地质条件，采用理论分析、相似模拟实验、数值模拟和现场数据分析等方法，对厚基岩浅埋煤层大采高加长工作面矿压规律进行了研究。运用“关键层理论”对覆岩移动规律进行了研究，并进行了理论计算。利用物理相似模拟对支架工作阻力、覆岩移动规律、底板支撑压力进行了分析。采用RFPA2D 数值模拟方法对厚基岩大采高工作面开采过程进行了模拟，对顶板垮落过程和覆岩移动规律进行了分析。通过现场监测，从走向和倾向两个方面对矿压规律进行了分析，对厚基岩条件下工作面长度和支架合理工作阻力进行了研究。 研究表明，乌兰木伦煤矿1-2 煤层大采高加长工作面矿压规律明显，来压期间支架的工作阻力比较大，工作面压力一般呈中间大，两头小；初次来压步距为42～64m，周期来压步距平均为12.9～13.3m；采场来压将呈现非均匀性周期变化，分析出了支架合理的工作阻力，其参数范围应为9827～13115kN/架。模拟了工作面支架的“支架－围岩”相互关系，得出了底板支撑压力影响范围，分析出上覆岩层不会出现沿工作面整体切落的剧烈矿压显现，而是出现“三带”分布。通过“关键层理论”建立了关键岩块结构力学模型，得到了厚基岩厚关键层条件下综采工作面支架合理支护阻力的理论计算值。

With the development of Shengdong coal area, the shallow seam with thin bed rock is deeply studied by researchers in our country. The overburden movement and mining pressure behavior of typical shallow coal seam mining face is obtained, which can well guide the field production. Recently, with the extension of the mining face, the mining height and the height of the bed rock of the overburden in Shengdong coal area, the study of the overburden movement and mining pressure behavior of shallow coal seam with thick bed rock becomes the new problem. Based on the geological conditions of the 61203 mining face of Wulanmulun Coal Mine, the mining pressure behavior of the shallow coal seam extended mining face with thick bed rock and high mining height is studied by means of theoretical analysis, similar simulation experiment, numerical simulation and field monitoring data analysis. The overburden movement is studied and calculated theoretically by “key strata theory”. The support working resistance, overburden movement and floor support pressure are analyzed by similar simulation experiment. The advancing process of mining face with high mining height and thick bed rock is simulated with RFPA2D numerical simulation method, and the roof caving process and overburden movement is analyzed. With the field monitoring, the mining pressure is analyzed in the strike direction and trend direction, the length of the face and the suitable support working resistance under thick bed rock conditions are studied. The study shows that, the mining pressure behavior of the extended mining face with high mining height in the 1-2 coal seam of Wulanmulun Coal Mine is remarkable. The support resistance is relatively large when weighting, and the mining face pressure is big in the middle and small in two sides; The first weighting step distance is 42～64m, the average periodic weighting step distance is 12.9～13.3m; The weighting of the mining face changes periodically and heterogenely, and the suitable working resistance range is 9827～13115kN per shelf. The “support-surrounding rock” interrelationship is simulated, and the floor support pressure influence area is obtained. The overburden will not crack fail along mining face, but appears “three-zone” distribution. The mechanical model of the key block is built with “key strata theory”, and the theoretical calculated result of suitable support resistance of the mining face with thick bed rock and thick key strata conditions is obtained.