西马矿膏体充填材料最佳混合比确定

发布时间：2018-03-21 01:41

本文选题：充填材料配比　切入点：正交实验法　出处：《煤矿安全》2017年12期 　论文类型：期刊论文

【摘要】：降低生产成本并满足现场工程要求是选择充填材料配比要考虑的2个主要指标。采用正交实验设计方法确定实验方案为三因素五水平,三因素为水泥含量百分比、灰矸比和膏体浓度。对实验结果进行直观分析和方差分析,得出影响早期强度的因素是水泥量百分比和膏体浓度,影响最终强度的因素是水泥量百分比和灰矸比。应用多元线性回归和高斯消去法求解出膏体浓度的最优配比:水泥量百分比为12.705%,灰矸比为0.400,膏体浓度为77.498%。最后对最优配比的强度进行实验室测试,第7 d的测试结果为0.93 MPa,第28 d的测试结果为3.21MPa,都满足现场工程要求。
[Abstract]:Reducing the production cost and meeting the requirements of field engineering are the two main indexes to be considered in selecting the proportion of filling materials. The orthogonal experimental design method is used to determine that the experimental scheme is three factors and five levels, and three factors are the percentage of cement content. The direct analysis and variance analysis of the experimental results show that the factors affecting the early strength are the percentage of cement and the concentration of paste. The factors that affect the final strength are the percentage of cement content and the ratio of ash to gangue. The optimum proportion of paste concentration is obtained by using multiple linear regression and Gao Si elimination method: the percentage of cement content is 12.705%, the ratio of cement to gangue is 0.400, and the concentration of paste is 77.4988.Finally, the ratio of cement to gangue is 0.400, the ratio of cement to gangue is 0.400. The strength of the optimal ratio is tested in the laboratory, On the 7th day, the test results were 0.93 MPA, and on the 28th day the results were 3.21 MPA, which met the requirements of field engineering.
【作者单位】：华北科技学院;辽宁工程技术大学矿业学院;
【基金】：国家自然科学基金资助项目(51174109,51074086) 中央高校基本科研业务费资助项目(3142017095)
【分类号】：TD823.7

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