充填体支护性能对采场围岩应力应变影响机理  

Influence mechanism of supporting property of fillmaterial on surrounding rock stress and strain of stope

作　　者：梅启双[1] 张电吉[1] 周春梅[1] 孟庆筱[2] 梅婷婷[1] 

机构地区：[1]武汉工程大学环境与城市建设学院,湖北武汉430074 [2]中国地震局地震研究所,湖北武汉430071

出　　处：《武汉工程大学学报》2011年第7期69-72,共4页Journal of Wuhan Institute of Technology

基　　金：国家自然科学基金项目(51054005);国家自然科学基金青年科学基金项目(41002112);湖北省自然科学基金项目(2010CDB11102);湖北省教育厅优秀中青年人才项目(Q20101509)

摘　　要：为研究充填体支护性能对采场围岩的影响机理,以阿希金矿为例,运用三维数值分析软件FLAC3D,对采场开挖和充填过程进行数值模拟计算.本文分析了充填接顶情况、充填体材料参数和充填方法对采场围岩和充填体应力应变规律的影响,结果表明:充填是否接顶对围岩应变和塑性区分布影响作用明显;充填材料的刚性越大,支护围岩的能力越强;不同充填方法下围岩应变情况有差异.In order to study the influence mechanisim of supporting property of fillmaterial on surrounding rock of stope,setting Axi Gold Mine as an example,the auther studies mining and filling process of stope with the methods of numerical simulation by three-dimensional numerical analysis software FLAC3D.The article analyzes the influence of roof-contacted filling,the material parameters of fillmaterial and filling methods to the stress and strain law on surrounding rock and fillmaterial of stope.The results show that the influence role of whether stope roofs are able to be tight in filling to surrounding rock strain and distribution of plastic area is obvious.The greater the rigidity of fillmaterial,the stronger support ability of surrounding rock.The strain of surrounding rock under different filling method are also different.

关 键 词：充填体 围岩 影响机理 数值模拟 

分 类 号：TD853[矿业工程—金属矿开采]