摘要
切槽放顶法——控制爆破局部切槽放顶技术,能经济地实现空场的小型化及其与深部开采系统的隔离,消除大规模顶板冲击地压隐患,并使顶板应力向有利于安全生产的方向重分布。研究了鸡西矿业集团沿空留巷的地压显现特征,应用切槽放顶法调整了沿空留巷的地压,确保了安全生产,并带来了明显经济效益。
The grooving top-caving method, a local grooving top-caving technique with controlled explosion, not only can economically reduce the continuous area of mining abandoned stope and separate it from the mining system at deep level, but also eliminate the hidden danger of large scale roof sudden falling, and redistribute the roof stresses to insure a safe production. In this paper, the characteristics of ground-pressure are studied at gob-side entry retained in Jixi Coal-mining Group Company. To control the ground-pressure in gob-side entry retained, a local grooving top-caving technique with controlled explosion is applied. The results show that the safe production is insured, and obvious economical benefit is obtained.
出处
《科技导报》
CAS
CSCD
2007年第20期43-47,共5页
Science & Technology Review
基金
黑龙江省博士后科研启动金项目(LBH-Q06003)
关键词
切槽放顶法/控制爆破局部切槽放顶技术
沿空留巷
地压显现
地压控制
the grooving top-caving method/local grooving top-caving technique with controlled explosion
gob-side entry retained
ground-pressure
ground-pressure control
