摘要
结合丰城矿区高地应力、复合顶板等复杂地质条件,研究深井条件下煤巷锚索采用小孔径、施加高预应力的结构形式和施工工艺。工程实践表明,该技术是解决深井高应力软岩巷道、大断面交岔点等支护难题的有效途径。
The deep well coal road cable of small diameter hole and high pre-tension structure and craft were studied according to the condition of high stress and composite roof in Fengcheng coal field. The result of the practical test showed that the technique was a effective way to solve the problems of high stress road and large span intersection supporting.
出处
《矿山压力与顶板管理》
北大核心
2004年第2期65-66,68,共3页
Ground Pressure and Strata Control
