关键词: 神东矿区, 8.8m超大采高, 综采工作面, 矿压综合监测, 微震

Abstract: In order to ensure safe production of Shendong 8.8m super-large mining height working face，a comprehensive monitoring and early warning platform for mine pressure and microseism in Shangwan Coal Mine was established. Based on the large data analysis, the rock pressure appearance, roof movement and support condition of 8.8m super-large working face are analyzed. Research shows: The periodic weighting of 8.8m super-high mining face is remarkable and the strata pressure is strong. The 26000kN support adopted has good adaptability. During the period of cyclic weighting, the average shrinkage of the support was 73 mm, and the shrinkage of the support was obvious. Under the condition of fixed surrounding rock, the relationship between the shrinkage of the support and the increment of the resistance of the support keeps a good linear growth, while the corresponding relationship has a greater discreteness when the surrounding rock conditions is different. The stiffness of support system is greatly affected by surrounding rock conditions. The energy level of microseismic events in 8.8m super-large working face is lower as a whole, but the frequency is higher,and the time-space correspondence between the release of microseismic energy ahead of the occurrence of ground pressure in working face also makes it possible to predict the large area weighting of roof in shallow seam by using microseismic monitoring results.