山东煤炭科技2023，Vol.41Issue(12)：118-122,127,6.DOI:10.3969/j.issn.1005-2801.2023.12.027
基于微震监测的特厚煤层综放开采覆岩运移规律研究
Research on Overlying Rock Movement and Displacement Law in Fully Mechanized Caving Mining of Extra Thick Coal Seams Based on Microseismic Monitoring
王云峰1
作者信息
- 1. 阳煤集团寿阳景福煤业有限公司,山西 阳泉 045000
- 折叠
摘要
Abstract
To study the characteristics of overlying rock fracture and migration in the shallow buried and thick coal seam fully mechanized top coal caving mining of the 23103 working face of Xiegou Coal Mine,a high-precision microseismic monitoring system was adopted to monitor the location and energy release of overlying rock fracture within a three-dimensional spatial range.The monitoring results indicate that there is a dense occurrence of microseismic events within the lower strata of the overlying rock.When a high-level rock layer ruptures,the occurrence of a low-level rock layer rupture event simultaneously indicates that the high-level rock layer is unstable and prone to synchronous fracturing of the underlying low-level rock layer,which further affects the mining pressure of the working face.The study on the law of overlying rock fracture and instability based on microseismic monitoring provides a scientific basis for mine pressure control and roof disaster prediction.关键词
特厚煤层/岩层破裂/微震监测/运移规律Key words
extra thick coal seam/rock stratum fracture/microseismic monitoring/movement and displacement law分类
矿业与冶金引用本文复制引用
王云峰..基于微震监测的特厚煤层综放开采覆岩运移规律研究[J].山东煤炭科技,2023,41(12):118-122,127,6.
