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尾砂胶结充填体在多因素影响下的强度试验研究
Experimental study on the influence of brine on the strength of tailings cemented backfill
【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。
【Abstract】 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.
- 【文献出处】 中国矿业 ,China Mining Magazine , 编辑部邮箱 ,2019年04期
- 【分类号】TD853.343
- 【被引频次】3
- 【下载频次】116