摘要
为提高中硬岩月单进,降低巷道维修率,告成矿在25001底抽巷进行中硬岩中深孔爆破技术研究,并对实施方案进行总结分析,不断优化技术方案。实践证明,在现有设备情况下,采用中深孔爆破,可以明显地提高单循环进尺,减少因岩面不平引起的应力集中现象,使巷道保持稳定状态,具有推广价值。
To improve thorsmake a research the monthly monocyclic advance and reduce the roadway maintenance efficiency, the au- on the medium--deep--hole blasting in medium hard rock in 25001 floor drainage roadway of Gaocheng Colliery with summary and analysis of implementation scheme and technical optimization, which shows that the medium--deep--hole blasting can obviously increase the monthly monocyelic advance, reduce the stress concentration caused by uneven rock surface and maintain the roadway stability with popularization value.
出处
《江西煤炭科技》
2013年第3期40-41,共2页
Jiangxi Coal Science & Technology
关键词
L7灰岩
中深孔爆破
方案优化
效果分析
L7 limestone
medium-- deep-- hole blasting
scheme optimization
effect analysis
