尾砂胶结充填体在多因素影响下的强度试验研究

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英文篇名：Experimental study on the influence of brine on the strength of tailings cemented backfill 作者：王永霞 英文作者：WANG Yongxia;Inner Mongolia Vocational and Technical College; 关键词：卤水 ; 充填体 ; 强度 ; 影响因素 英文关键词：brine;;filling body;;strength;;influencing factor 中文刊名：中国矿业 英文刊名：China Mining Magazine 机构：内蒙古交通职业技术学院; 出版日期：2019-04-15 出版单位：中国矿业 年：2019 期：04 语种：中文; 页：144-148 页数：5 CN：11-3033/TD ISSN：1004-4051 分类号：TD853.343

摘要

为了研究卤水对尾砂胶结充填体强度的影响规律,开展了不同养护龄期、不同搅拌水、不同灰砂比条件下的充填体的强度试验。试验结果显示:充填体试块强度与养护龄期呈乘幂函数关系;卤水会提高充填体的早期强度(7d),但会降低充填体的长期强度(7～28d);通过对充填体强度影响因素极差分析,得出养护龄期为影响充填体强度的主要因素。
        In order to study on the effect of brine on the strength of tailings cemented backfill,the strength test of fillings under different curing ages,different mixing waters and different sand-sand ratios is carried out.The test results show that the strength of the filling block and the maintenance age are a power function relationship.Brine will increase the early strength of the filling(7 d),but will reduce the long-term strength of the filling(7-28 d).Through the analysis of the extremely poor influencing factors of the filling body strength,the curing age is the main factor affecting the strength of the filling body.

引文

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