厚大矿体采空区充填工艺优化研究

Study on Optimization of Filling Process in Mined-out Area of Thick and Large Orebody

随着充填采矿法在厚大矿体开采中推广应用,提高充填体的质量成为采矿工艺一个重要环节。本文分别从充填料浆浓度控制、采场充填设施设置、胶凝材料选取等方面优化充填工艺,提出选择合适的充填挡墙、改善充填体脱水、采用低水化热高强度的充填胶凝材料等技术路线,以提高厚大充填体质量。

With the popularization and application of backfill mining method in thick and large ore body mining, improving the quality of filling body has become an important link in mining process. In this paper, the filling process is optimized from the aspects of concentration control of filling slurry, setting of filling facilities in stope, selection of binding materials, etc. The technical routes such as selecting appropriate barricade, improving dehydration of fill mass, and adopting filling binding materials with low hydration heat and high strength are put forward to improve the quality of thick and large filling mass.