Abstract:Huanghe-bei mining area is the last ready reserve resources of coal base in Luxi, and therefore that is of vital significance in exploitation and construction. The factual observation data and regression analysis method were used to obtain the rock movement parameters, which was then used to predict the surface subsidence induced by the coal mining of Huanghe-bei mining area in Shandong Province. The prediction results show that the total area of the surface subsidence is reached 3724.5km2 and the maximum sinking depth is 5455 mm. Among them, the maximum sinking depth of coal field in Yanggu Chiping is 5455 mm and the total area of the surface subsidence is reached 1188.0km2 . In addition, the maximum sinking depth of coal field in Huanghe-bei mining area is 2976 mm and the total area of the surface subsidence is reached 2536.5km2 . Comparing the surface subsidence prediction results with water level observation data, coal mining causes seasonal water area of 1091.5 km2 and perennial water area of 62.3km2. Surface subsidence has different impact and harm on ground, especially on agriculture. Collapse fracture, different slope cultivated land, giant sunken pit formed by surface subsidence were respectively treated by filling wall, large equipment such as flat, returning farmland to forest, coal gangue filling. In this paper, the suggestion of planning and control measures of Huanghe-bei mining area exploitation is raised for relevant government departments.
