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材料导报  2023, Vol. 37 Issue (23): 22090218-6    https://doi.org/10.11896/cldb.22090218
  无机非金属及其复合材料 |
相似材料抗压强度正交试验与材料强度影响系数研究
宋春鹏1,2, 由爽1,2,*, 纪洪广1,2, 孙利辉3
1 北京科技大学城市地下空间工程北京市重点实验室,北京 100083
2 北京科技大学土木与资源工程学院,北京 100083
3 河北工程大学矿业与测绘工程学院,河北 邯郸 056038
Orthogonal Test of Compressive Strength of Similar Materials and Influence Coefficient of Material Strength
SONG Chunpeng1,2, YOU Shuang1,2,*, JI Hongguang1,2, SUN Lihui3
1 Beijing Key Laboratory of Urban Underground Space Engineering, University of Science and Technology Beijing, Beijing 100083, China
2 School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China
3 College of Mining and Geomatics Engineering, Hebei University of Engineering, Handan 056038, Hebei, China
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摘要 为了研究不同原材料对相似材料单轴抗压强度的影响规律,以ISO标准砂、细河沙为骨料,水泥、石膏、腻子粉为胶结材料,制备了砂水石体系、沙水石体系、沙粉石体系的相似材料,通过正交实验法、力学性能测试法、回归分析法、最小二乘曲线拟合法等实验手段,研究了三种相似材料配合比及不同配合比下的力学性能表征。结果表明,不同原材料的属性直接决定了相似材料的力学性能,胶结材料会对相似材料单轴抗压强度产生正相关影响,骨料会对相似材料单轴抗压强度产生负相关影响;沙水石体系的单轴抗压强度与砂水石体系的单轴抗压强度相差约42%,沙粉石体系的单轴抗压强度与沙水石体系的单轴抗压强度相差约344%。通过多元回归性分析得到了适用于砂水石体系、沙水石体系、沙粉石体系的单轴抗压强度经验公式,在此基础上,定义了一种影响相似材料单轴抗压强度的强度影响系数,实现了原材料与相似材料单轴抗压强度之间的量化表征,最终明确沙粉石体系为三种体系中最优体系。
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宋春鹏
由爽
纪洪广
孙利辉
关键词:  相似材料  单轴抗压强度  回归分析  强度影响系数    
Abstract: In order to study the effect of different raw materials on the uniaxial compressive strength of similar materials, using ISO standard sand and fine river sand as aggregates, and cement, gypsum, and putty powder as cementing materials, a sand-water stone system, sand-water stone system, and sand powder were prepared. For similar materials in the stone system, the mechanical properties characterization of three similar materials with different mixing ratios were studied by orthogonal experiment method, mechanical property testing method, regression analysis method, least square curve fitting method and other experimental methods. It is found that the properties of different raw materials directly determine the mechanical properties of similar materials, cementing materials will have a positive correlation with the uniaxial compressive strength of similar materials, and aggregates will have a negative correlation with the uniaxial compressive strength of similar materials. The difference between the uniaxial compressive strength of the sand-water stone system and the sand-water stone system was about 42%, and the uniaxial compressive strength of the sand-silt stone system was about 344% different from the uniaxial compressive strength of the sand-water stone system. The empirical formula of uniaxial compressive strength suitable for sand-water-stone system, sand-water-stone system and sand-dust-stone system is obtained through analysis. The quantitative characterization between the uniaxial compressive strength of the raw materials and similar materials finally made it clear that the sand and silt system is the optimal system among the three systems.
Key words:  similar material    uniaxial compressive strength    analysis of regression    strength influence factor
出版日期:  2023-12-10      发布日期:  2023-12-08
ZTFLH:  TU502  
基金资助: 国家自然科学基金(52074021)
通讯作者:  * 由爽,北京科技大学土木与资源工程学院教授、博士研究生导师。2006年辽宁科技大学土木工程专业本科毕业,2007年北京科技大学岩土工程专业硕士毕业,2011年北京科技大学岩土工程专业博士毕业。目前主要从事深部工程岩体多场耦合力学性能等方面的研究工作。在国内外重要学术期刊上公开发表学术论文17篇,包括Energy and Buildings、Applied Thermal Engineering、《煤炭学报》等,以第一发明人身份授权专利8项。youshuang@ustb.edu.cn   
作者简介:  宋春鹏,2020年6月于河北工程大学获得工学学士学位。现为北京科技大学土木与资源工程学院硕士研究生,在由爽教授的指导下进行研究。目前主要研究领域为岩土工程、深部岩石力学等。
引用本文:    
宋春鹏, 由爽, 纪洪广, 孙利辉. 相似材料抗压强度正交试验与材料强度影响系数研究[J]. 材料导报, 2023, 37(23): 22090218-6.
SONG Chunpeng, YOU Shuang, JI Hongguang, SUN Lihui. Orthogonal Test of Compressive Strength of Similar Materials and Influence Coefficient of Material Strength. Materials Reports, 2023, 37(23): 22090218-6.
链接本文:  
http://www.mater-rep.com/CN/10.11896/cldb.22090218  或          http://www.mater-rep.com/CN/Y2023/V37/I23/22090218
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