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Mechanics and safety issues in tailing-based backfill: A review
International Journal of Minerals, Metallurgy and Materials ( IF 4.8 ) Pub Date : 2020-09-05 , DOI: 10.1007/s12613-020-2004-5
Xu Zhao , Andy Fourie , Chong-chong Qi

Voids (referred to as “stopes”) are generally created during underground mining activities and can lead to both local and regional geotechnical instabilities. To assist in managing the stability of mining-related voids and improving the recovery of orebodies, tailing-based backfill technology has been widely used around the world. In the design of tailing-based backfill strategy, the specific function and engineering requirements of the filling are intimately dependent on the stress distribution within the backfilled stope. In this paper, the main mechanics involved in tailing-based backfill in underground mines, which include arching, consolidation, hydration process, and movement of surrounding rocks, are reviewed. Research on the safety of a barricade and stability of an exposed fill face are also presented. In conclusion, the back-filling process should be performed on the basis of a better understanding of the complicated interactions of the mechanisms of filling, consolidation, and hydration process (when cement is added).



中文翻译:

基于尾矿的回填的力学和安全性问题:综述

空洞(称为“停止”)通常在地下采矿活动期间产生,并且可能导致本地和区域岩土工程不稳定。为了帮助管理与采矿有关的空隙的稳定性并提高矿体的回收率,基于尾矿的回填技术已在世界范围内广泛使用。在基于尾矿的回填策略的设计中,填充的具体功能和工程要求与回填采场内的应力分布密切相关。本文综述了地下矿山尾矿基回填的主要机理,包括拱形,固结,水化过程以及围岩运动。还介绍了路障的安全性和裸露的填充面的稳定性的研究。结论,

更新日期:2020-09-06
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