[1]林海飞,杨二豪,赵鹏翔,等.类岩石材料力学特性参数多元线性回归模型[J].西安科技大学学报,2018,(03):351-359.[doi:10.13800/j.cnki.xakjdxxb.2018.0302]
 LIN Hai-fei,YANG Er-hao,ZHAO Peng-xiang,et al.Multivariate linear regression model of the mechanical properties of rock-like materials[J].Journal of Xi'an University of Science and Technology,2018,(03):351-359.[doi:10.13800/j.cnki.xakjdxxb.2018.0302]
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类岩石材料力学特性参数多元线性回归模型(/HTML)
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西安科技大学学报[ISSN:1672-9315/CN:61-1434/N]

卷:
期数:
2018年03期
页码:
351-359
栏目:
出版日期:
2018-05-15

文章信息/Info

Title:
Multivariate linear regression model of the mechanical properties of rock-like materials
文章编号:
1672-9315(2018)03-0351-09
作者:
林海飞12杨二豪1赵鹏翔12卓日升1赵 波1
1.西安科技大学 安全科学与工程学院,陕西 西安 710054; 2.西安科技大学 西部矿井开采及灾害防治教育部重点实验室,陕西 西安 710054
Author(s):
LIN Hai-fei12YANG Er-hao1ZHAO Peng-xiang12ZHUO Ri-sheng1ZHAO Bo1
(1.College of Safety Science and Engineering,Xi'an University of Science and Technology,Xi'an 710054,China; 2.Key Laboratory of Western Mine Exploitation and Hazard Prevention,Ministry of Education,Xi'an University of Science and Technology,Xi'an 710054,China)
关键词:
安全科学与工程 类岩石材料 多元回归分析 SPSS 力学参数
Keywords:
safety science and engineering rock-like materials multivariate regression analysis SPSS mechanical parameters
分类号:
TD 315
DOI:
10.13800/j.cnki.xakjdxxb.2018.0302
文献标志码:
A
摘要:
为探究多因素对类岩石材料力学特性的影响,采用正交设计方法,选取水泥含量、石膏含量、骨料粒径、冲击力、冲击次数作为影响因素,得到25组类岩石材料单轴压缩条件下抗压强度、弹性模量及容重的正交试验结果。应用方差分析获得各因素的敏感性,并运用SPSS(Statistical Package for the Social Science)对试验结果进行多元线性回归分析,研究显著因素对类岩石材料力学特性的影响规律。研究结果表明:类岩石材料抗压强度受水泥含量、石膏含量、骨料粒径、冲击力的影响显著,且随着水泥含量、石膏含量和冲击力的增加而增大,随粒径增大而减小; 弹性模量受水泥含量、石膏含量、骨料粒径的影响显著,且与水泥含量、冲击力呈正线性关系,与粒径大小呈负线性关系; 容重受冲击力的影响显著,并随之增加而增大。针对多因素不同水平的正交试验结果应用多元线性回归分析可以建立类岩石材料力学特性的回归方程模型,能够在一定范围内预测类岩石材料的抗压强度、弹性模量及容重,为进一步定量化开展物理模型试验奠定了基础。
Abstract:
To investigate the influence of multiple factors on mechanical properties of rock-like materials,using orthogonal design method,the factors of cement contents,gypsum contents,grain size,impact force,and impact times were selected to prepare rock-like materials specimens.Uniaxial compression tests of twenty five samples were carried out to obtain the data of unconfined compressive strength,unit weight,and elastic modulus.The variance analysis were used to get the sensitivity of various factors,and multiple linear regression analysis based on SPSS was adopted to study the influence of significant factors on mechanical properties of rock-like materials.The results show that the variations of cement contents,gypsum contents,grain size,and impact force had a marked effect on compressive strength of rock-like materials.The compressive strength raised with increase of cement percentage,gypsum percentage,impact force and decreased with the reduction in grain size.In addition,the effect of cement contents,gypsum contents and grain size on elastic modulus was significant,of which cement contents and impact force were positive and grain size was negative.The effect of unit weight was marked by impact force and increased with it.According to the results of multi-factor orthogonal experiment,regression equation models of rock-like materials mechanical properties were established,which could be used to estimate compressive strength,unit weight,and elastic modulus of rock-like materials within a certain range.Those results will lay a foundation for the further development of the physical model tests.

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备注/Memo

备注/Memo:
收稿日期:2017-12-18 责任编辑:杨泉林
基金项目:国家自然科学基金(51734007,51674192,51604219)
通信作者:林海飞(1979-),男,山西天镇人,博士,教授,E-mail:lhaifei@163.com
更新日期/Last Update: 2018-06-30