黑龙江科技大学学报2024，Vol.34Issue(1)：8-13,35,7.DOI:10.3969/j.issn.2095-7262.2024.01.002
眼前山铁矿冒落冲击风险评价
Risk assessment for falling impact of Yanqianshan iron mine
周永伟 1秦涛 2侯宪港2
作者信息
- 1. 辽宁有色勘察研究院有限责任公司,沈阳 110819
- 2. 黑龙江科技大学 黑龙江省煤矿深部开采地压控制与瓦斯治理重点实验室,哈尔滨 150022
- 折叠
摘要
Abstract
This paper focuses on a study in response to the risk of falling impact in the first mining section area fromYanqianshan opencut coal mine to underground mine.The study involves using stress monitoring,microseismic monitoring,and numerical analysis methods to obtain the mining disturbance response characteristics behind the surrounding rock in the first mining section,and proposes a method for evaluating the risk of falling impact in Yanqianshan iron mine.The research results show that,with the distance shortened from the mining site,the rock changing number of the stress values and the accu-mulated number of the microseismic events increase gradually,and the current mining work causes a local penetration through the stress concentration areas and fracture areas within the rock mass.By using four indicators including the stress concentration degree,the range of stress concentration area,the penetra-tion degree of the stress concentration area,and the connection degree of rock fracture path,the study quantifies the risk of falling impact in the first underground mining section area of Yanqianshan as a low level.关键词
冒落冲击/微震监测/风险评价Key words
falling impact/microseismic monitoring/risk assessment分类
矿业与冶金引用本文复制引用
周永伟,秦涛,侯宪港..眼前山铁矿冒落冲击风险评价[J].黑龙江科技大学学报,2024,34(1):8-13,35,7.
