胶结充填采矿法充填作用机理与稳定性研究

Study on Mechanism and Stability of Filling in Stoping-cemented Fill Method

结合金川二矿区的充填采矿工艺 ,采用现场观测方法及三维有限元分析方法研究了机械化下向分层水平进路胶结充填和无底柱大面积连续开采的充填机理和稳定性 ,研究表明充填体承受采场地压和变形 ,盘区间以不留矿柱为宜 。

The mechanism and stability of filling in mechanized horizontal descending stoping cemented filling and in large area nonpillar continuous mining were studied by site observation method and three dimensional finite element analysis method and in combination with the stoping filling technology used in Jinchuan No.2 mining area. The study showed that the filling body had borne the ground pressure and deformation of stope and it was better not to leave interstall pillars. Cross stoping and filling mode was recommended.