论文部分内容阅读
基德克里克矿(Kidd Creek)通过对20多个大规模充填体暴露面的观察研宄,为评价胶结充填体对岩层支护的保护作用提供了充分条件.本文分别对充填体强度和刚性的试验室和现场试验进行了描述,特别对与抵抗爆破震动有关的充填体动态强度进行了详述。文章讨论了在充填过程中,矿柱应力变化和采场顶底盘变形的几种测量结果。同时还介绍了一种提高岩层稳固性的新方法——用胶结充填体在采场内构筑一个充填柱塞,并给出了使用充填柱塞的分析数据。
Kidd Creek provided sufficient conditions for evaluating the protective effect of cemented backfill on the support of rock mass by observing the exposed surface of more than 20 large-scale backfill bodies.In this paper, Rigid laboratory and field tests are described, with particular emphasis on the dynamic strength of the packings associated with blast-resistant vibration. The article discusses several measurements of stress changes in the pillars and deformation of the top chassis during the filling process. At the same time, a new method to improve the stability of rock stratum is also introduced. A stuffing plunger is built in the stope with cemented filling body, and the analytical data of filling plunger is given.