为揭示8.8 m特厚煤层开采过程中覆岩运动与应力演化规律，以上湾煤矿12401综采工作面为背景，利用相似模拟、数值模拟、现场实测等方法开展了研究和分析。研究结果表明：随着工作面推进，工作面前方煤层中的最大和最小主应力均发生集中现象，应力集中程度随着工作面推进而增大，最大主应力集中程度和变化梯度大于最小主应力，但峰值超前煤壁范围小于最小主应力峰值超前煤壁范围；采空区存在应力恢复现象，随着工作面推进，应力恢复程度逐渐升高，最大主应力恢复程度高于最小主应力；工作面附近大裂缝与井下来压关系密切，地表会出现相对较大的裂缝，靠近回采巷道位置裂缝宽度变窄；基岩较薄处覆岩只存在冒落带和裂隙带，弯曲下沉带随着基岩厚度的变化而改变。开展8.8 m特厚煤层采场覆岩运动与应力演化规律的研究能够为神府东胜煤田特厚煤层资源开发利用提供指导。

In order to reveal the law of overburden movement and stress evolution during the mining of the 8.8 m extra-thick coal seam mining, the No.12401 fully-mechanized mining face of Shangwan Coal Mine was used as the research background and research and analysis by means of similar simulation experiment, numerical simulation calculation and field measurement to carry out the research and analysis.The results showed that as the working face advances, the maximum and minimum principal stress in the coal seam ahead of mining face are concentrated, and the stress concentration degree increases with the advancement of working face, the maximum main stress concentration and the change of gradient are greater than the minimum principal stress, but the peak leading coal wall range is smaller than the minimum principal stress peak leading coal wall range; the stress recovery phenomenon exists in gob. As the working face advances, the stress recovery degree gradually increases, and the maximum principal stress recovery degree is higher than the minimum principal stress. The large cracks near the working face are closely related to downhole pressure, and relatively large cracks appear on the surface, and the width of cracks near the two channels becomes narrower. There are only caving zones and fracture zones existing in the overlying rock where the bedrock is thinner, and the bending subsidence zone follows changes with the thickness of the bedrock. The study of overlying strata movement and stress evolution law of the 8.8 m extra-thick coal seam can provide guidance value for the development and utilization of extra-thick coal seam resources in Shenfu Dongsheng coalfield and has a broad engineering prospect.