煤炭与化工2025，Vol.48Issue(7)：1-6,117,7.DOI:10.19286/j.cnki.cci.2025.07.001
厚煤层下向分层单元密实充填开采方法研究
Study on unit dense filling mining method of downward layered in thick coal seam
马宗玉 1张斌 2刘强 2汪诗柯 3刘鑫 3邓雪杰3
作者信息
- 1. 内蒙古晨德建设工程有限公司,内蒙古鄂尔多斯 017000
- 2. 国能蒙西煤化工股份有限公司,内蒙古鄂尔多斯 017000
- 3. 中国矿业大学(北京)能源与矿业学院,北京 100083
- 折叠
摘要
Abstract
In China's recoverable reserves of coal resources,thick coal seams account for a relatively large proportion.However,traditional mining methods can hardly meet the requirements of safety and high efficiency when it comes to the mining of thick coal seams under the conditions of"mining under buildings,railways and water bodies"and other complex geological conditions.This paper proposed a downward slicing unit dense filling mining method for thick coal seams,elaborated on the layout of the production system,the filling mining technology and the roof support mode of this method,and studied the laws of mine pressure behavior and rock stratum movement in the stope during the application of this method through numerical simulation.The simulation results showed that the roof stress in the area after mining and filling within a slice was lower than that of the roof of the unmined coal pillars.As the coal seams were mined layer by layer,the roof underwent continuous subsidence,and the maximum subsidence value appeared at the midpoint of the mining range.The maximum subsidence value increased from 58 mm after the excavation of the first slice to 124 mm after the completion of the mining of all slices,and the increase amplitude decreases layer by layer.关键词
厚煤层/充填开采/单元密实充填/下向分层Key words
thick coal seams/filling mining/unit dense filling/downward slicing分类
矿业与冶金引用本文复制引用
马宗玉,张斌,刘强,汪诗柯,刘鑫,邓雪杰..厚煤层下向分层单元密实充填开采方法研究[J].煤炭与化工,2025,48(7):1-6,117,7.
