粉煤灰基胶结材料充填开采数值模拟研究  

Numerical Simulation Research on Fly-ash-based Cement Material Filling Mining

作　　者：陈维新[1] 杨胜斌[2] 付明超 

机构地区：[1]黑龙江科技大学矿业研究院,黑龙江哈尔滨150022 [2]中铁十二局集团有限公司三公司,山西太原030024 [3]山东省宁阳县煤炭工业管理局,山东泰安271400

出　　处：《煤》2015年第11期4-6,10,共4页Coal

基　　金：黑龙江省发展高新技术产业(非信息产业)专项资金资助项目(FW12A018)

摘　　要：为了防控采空区覆岩地表移动,解放"三下"压煤,文章采用数值模拟的方法对通化八宝煤矿粉煤灰基胶结材料充填开采后的覆岩进行研究,得出采场覆岩塑性区发育高度低,充填体以上2.5 m处应力最大值与原岩应力相差不大及平面位移无明显变化的结论。结合地表下沉监测结果说明粉煤灰基胶结充填材料充填采煤后能实现顶板无破断,地表微沉陷的效果。In order to prevent surface movement and release ＂three under＂ coal, this paper researched the overlying strata which was after fly - ash - based cement material filling mining in Babao mine of Tonghua by numerical simulation, the results showed that the de- velopment height of plastic zone of the overlying strata is low, the value between maximum stress above filling body more than 2.5 m and the original rock stress is about the same and no significant change in the displacement plane. Combined with surface subsidence monitoring analysis,which proved that fly - ash - based cement filling materials filling mining can achieve roof without breaking and surface micro subsidence.

关 键 词：粉煤灰基胶结材料 充填开采 数值模拟 

分 类 号：TD823.7[矿业工程—煤矿开采]