尾砂胶结充填体强度影响因素正交分析  

Orthogonal Analysis of the Strength Influence Factors of the Backfilling Consolidated Filling Body

作　　者：任海锋[1,2] 宋卫东[1,2] 丁明龙[1,2] 唐占信 江国建[3] 吴锋[3] 

机构地区：[1]金属矿山高效开采与安全教育部重点实验室 [2]北京科技大学土木与环境工程学院 [3]招远黄金集团股份有限公司大尹格庄金矿

出　　处：《现代矿业》2014年第12期152-155,共4页Modern Mining

基　　金：国家自然科学基金(编号:51374033);博士点基金(编号:20120006110022)

摘　　要：大尹格庄金矿2#矿深部矿体采用尾砂胶结充填采矿法回采,为了确定合适的配合比,对不同尾砂的充填体试块进行单轴抗压强度试验,得到不同养护条件下充填体试块的单轴抗压强度,从而得出料浆浓度、灰砂比、养护龄期对充填体试块强度的影响规律。通过正交分析确定了充填体试块强度的主要影响因素。试验研究结论可靠,为大尹格庄金矿充填采矿法的实施提供了依据,同时也对其他矿山充填设计具有一定的指导和参考作用。The 2#deep ore body of Dayingezhuang gold mine is mined by adopting the backfilling cemented filling mining method. In order to determine the appropriate mixing ratio,the uniaxial compressive strength experiment of the filling blocks of different tailings are conducted. According to the uniaxial compressive strength values under different curing conditions,the influence rule of slurry concentration,contrast ratio and curing age to the strength of filling body blocks are obtained. The main influence factors are determined by using the orthogonal analysis method. The experiment conclusion is reliable,and it can provide some reference for the filling engineering design of other mine.

关 键 词：尾砂胶结充填体 抗压强度 正交分析 

分 类 号：TD853.34[矿业工程—金属矿开采]