帷幕隔离快速跟随充填新技术研究

Study on New Technique of Heavy Curtain Isolation subsequent Filling

分析了缓倾斜薄矿开采中存在的问题 ,提出采用帷幕隔离快速跟随充填技术处理采空区的新思路。通过现场工业试验 ,证明这种快速处理空区的新技术不仅可行 ,而且具有帷幕壁面全面脱水的特点 ,能使充入采空区内的充填料浆在 2 5min后达到 78%～ 80 %的饱和浓度 ,6 0min后充填体开始对采空区顶板提供初期支护 ,极大地改善了采场的安全作业条件。此外 ,这种充填新技术能使充填与回采同步进行 ,加快了作业循环 。

The paper analyses the existing problem of mining of narrow and gentle dip veins. The author puts forward new technique of heavy curtain isolation-subsequent filling. The experimental results have shown that the technique is feasible. The whole curtain wall has the ability to filter, making filled slurry at a saturation density of 78% [similar to] 80% in 25 min and have the basic ability to surport ceiling rock in 60 min. Besides, this technique enssures that filling and mining can be simultaneously conducted.