全尾砂胶结充填体强度影响因素响应面法研究

doi:10.16265/j.cnki.issn1003-3033.2017.12.018

中国安全科学学报 ›› 2017, Vol. 27 ›› Issue (12): 103-109.doi: 10.16265/j.cnki.issn1003-3033.2017.12.018

全尾砂胶结充填体强度影响因素响应面法研究

杨坚, 尹土兵副教授, 刘科伟, 刘志祥教授, 陈冲

中南大学资源与安全工程学院,湖南长沙 410083

收稿日期:2017-08-30 修回日期:2017-10-31 出版日期:2017-12-28 发布日期:2020-10-10
作者简介:杨坚 (1991—),男,河南开封人,硕士研究生,主要研究方向为安全评价及安全工程。E-mail:1429220809@qq.com。
基金资助:
国家自然科学基金资助(51674288)。

Study on factors affecting strength of tailings backfill body with response surface method

YANG Jian, YIN Tubing, LIU Kewei, LIU Zhixiang, CHEN Chong

School of Resources and Safety Engineering, Central South University, Changsha Hunan 410083,China

Received:2017-08-30 Revised:2017-10-31 Online:2017-12-28 Published:2020-10-10

摘要/Abstract

摘要： 为研究充填体各影响因素对不同养护龄期充填体抗压强度的综合作用,提高矿山充填质量,在对尾砂、胶凝C料等充填材料物化性能分析的基础上,设计、开展正交试验,建立不同养护龄期响应面模型,深入分析各影响因素间的交互作用。结果表明:在所建立的响应面模型检验中,F值大于33.34,P值小于0.000 1,模型是有效的;料浆固相质量分数及灰砂比的提高能有效增加充填体抗压强度;速凝剂掺量存在一个临界值;料浆固相质量分数与灰砂比之间有协同关系,料浆固相质量分数和灰砂比与速凝剂掺量之间有微弱的拮抗关系。

关键词: 胶结充填, 抗压强度, 协同效应, 拮抗效应, 响应面模型, 配比优化

Abstract: In order to study the comprehensive effects of various factors on the compressive strength of filling body at different curing ages and improve the quality of mine filling, physical and chemical properties of filling materials were analyzed, orthogonal experiments were carried out. A response surface model was built to analyze the interactions between the various factors. The results show that F-value and P-value obtained in the response surface model test are larger than 33.34 and less than 0.000 1 respectively, so the model is effective, that both the increase in mass fraction of solid in slurry and the increase in ratio of cement to sand can effectively improve the compressive strength of filling body, that there is a critical value of the accelerater dosage, that there is a collaborative relationship between slurry solid content and lime sand ratio, and that there is a faint antagonistic relationship between mass fraction of solid in slurry, cement-sand ratio and accelerater dosage.

Key words: cemented backfilling, compression strength, synergistic effect, antagonistic effect, response surface model, ratio optimization

中图分类号:

X936

杨坚, 尹土兵, 刘科伟, 刘志祥, 陈冲. 全尾砂胶结充填体强度影响因素响应面法研究[J]. 中国安全科学学报, 2017, 27(12): 103-109.

YANG Jian, YIN Tubing, LIU Kewei, LIU Zhixiang, CHEN Chong. Study on factors affecting strength of tailings backfill body with response surface method[J]. China Safety Science Journal, 2017, 27(12): 103-109.

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全尾砂胶结充填体强度影响因素响应面法研究

Study on factors affecting strength of tailings backfill body with response surface method

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