高谦,杨晓炳1,2,温震江1,2,陈得信3,何建元3.基于RSM-BBD的混合骨料充填料浆配比优化[J].湖南大学学报:自然科学版,2019,(6):47~55
基于RSM-BBD的混合骨料充填料浆配比优化
Optimization of Proportioning of Mixed Aggregate Filling Slurry Based on BBD Response Surface Method
  
DOI:
中文关键词:  采矿方法  BBD响应面法  料浆配比  骨料  抗压强度  交互作用  多目标优化  成本
英文关键词:mining engineering  BBD response surface method(RSM-BBD)  slurry ratio  aggregates  compressive strength  interactions affection  multi-objective constrained optimization  costs
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作者单位
高谦,杨晓炳1,2,温震江1,2,陈得信3,何建元3 (1. 北京科技大学 金属矿山高效开采与安全教育部重点实验室北京 100083 2. 北京科技大学 土木与资源工程学院北京 1000833. 金川集团股份有限公司甘肃 金昌 737100) 
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中文摘要:
      针对混合骨料充填矿山,为了确定充填料浆优化配比,首先进行充填材料物化特性分析,在此基础上,根据泰波级配理论和最大堆积密实度理论,确定棒磨砂-废石配比;然后采用BBD响应面法设计13组试验,研究料浆质量分数、胶砂比(胶凝材料与骨料的比值)、混合骨料配比对充填体强度影响规律. 最后以各龄期强度为响应值构建响应面模型,揭示各响应参数与目标响应量相关关系及多目标条件下充填料浆优化配比. 研究结果表明,充填体强度不仅受单因素影响,而且各因素间交互作用对充填体也有很大影响. 其中料浆质量分数与骨料配比的交互作用对充填体早期强度起决定性作用,胶砂比与骨料配比的交互作用对充填体中期强度影响显著,充填体后期强度受料浆质量分数和胶砂比交互作用影响较大. 以充填成本作为目标建立优化模型进行优化,由此获得充填料浆的优化配比为:料浆质量分数80%,胶砂比为1 ∶ 6,棒磨砂-废石配比为3 ∶ 7. 通过试验验证满足金川矿山充填体强度要求.
英文摘要:
      In view of the mixed aggregate filling mine,in order to determine the optimum proportion of filling slurry, firstly,the physicochemical properties of filling materials were analyzed. Based on the theory of Talbol grading and the theory of maximum bulk density,the ratio of rod grinding sand and waste rock was determined. 13 groups of tests were designed with BBD response surface method(RSM-BBD) to analyze the effects of slurry mass fraction, cement-aggregate ratio and mixture aggregate ratio on the strength of filling body. Finally,the response surface model was constructed with the intensity of each age as the response value to study the correlation between each response parameter and the target response as well as the optimal ratio of the filling slurry under multi-objective conditions. The results show that the strength of the filling body is affected by single factors, and the interaction between the various factors has a great influence on the filling body. The interaction between the mass fraction and aggregate ratio plays a decisive role in the early strength of the filling body. The interaction between the cement-aggregate ratio and aggregate ratio has a significant effect on the medium strength of the filling body. The late strength of the backfill is greatly affected by the interaction of the mass fraction and cement-aggregate ratio. The optimization is based on the lowest unit filling cost, and the optimal ratio is as follow: slurry mass fraction is 80%, cement-aggregate is 1 ∶ 6,the ratio of rod grinding sand and waste rock is 3 ∶ 7,and the test is verified to meet Jinchuan Mine strength requirements.
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