冻结砂土体积变形影响因素的敏感性分析

doi:10.7522/j.issn.1000-0240.2018.0039

冰川冻土 ›› 2018, Vol. 40 ›› Issue (2): 346-354.doi: 10.7522/j.issn.1000-0240.2018.0039

冻结砂土体积变形影响因素的敏感性分析

高娟^1,2, 廖孟柯³, 常丹^1,4, 白瑞强^1,2

1. 中国科学院西北生态环境资源研究院冻土工程国家重点实验室, 甘肃兰州 730000;
2. 中国科学院大学, 北京 100049;
3. 国网新疆电力公司经济技术研究院, 新疆乌鲁木齐 830002;
4. 北京交通大学, 北京 100044

收稿日期:2018-01-01 修回日期:2018-03-02 出版日期:2018-04-25 发布日期:2018-07-02
作者简介:高娟(1988-),女,甘肃静宁人,2014年在中国矿业大学(徐州)获硕士学位,现为中国科学院西北生态环境资源研究院在读博士研究生,从事冻土力学研究.E-mail:gaojuan2611261@lzb.ac.cn
基金资助:
国家自然科学基金项目（41230630；41701068）；中国科学院前沿科学重点研究计划项目（QYZDY-SSW-DQC015）资助

Sensitivity analysis of the factors affecting the volumetric deformation of frozen sandy soil

GAO Juan^1,2, LIAO Mengke³, CHANG Dan^1,4, BAI Ruiqiang^1,2

1. State Key Laboratory of Frozen Soil Engineering, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China;
2. University of Chinese Academy of Sciences, Beijing 100049, China;
3. Economic and Technological Research Institute, State Grid Electric Power of Xingjiang, Vrümqi 830002, China;
4. Beijing Jiaotong University, Beijing 100044, China

Received:2018-01-01 Revised:2018-03-02 Online:2018-04-25 Published:2018-07-02

摘要/Abstract

摘要： 为了分析三轴试验中冻土体积变形影响因素的敏感性，选定包括内因和外因在内的6种影响因素，选用青海省德令哈的砂土按照正交试验方案进行常规三轴试验，并采用灰色关联分析法对试验结果进行分析，给出各影响因素的敏感性排序。结果表明，在选定的6种影响因素中，含水率、加载速率及温度的敏感性超过70%，需重点考虑。在较小含水率条件下，冻结砂土先体缩再体胀，且应力峰值点和应变峰值点所对应的轴向应变基本一致，而在饱和条件下仅发生体积膨胀。加载速率对冻土的影响主要表现为对其力学特性和破坏形态的改变，随着加载速率的增加冻土的体缩量、切线模量和峰值强度增加，但峰值应变却表现为减小趋势，冻结砂土性质趋近脆性。土样温度降低，土颗粒间的黏结力增加，孔隙压力转变为有效应力，从而导致冻结砂土的强度增加、体积膨胀量增加。分析结果可为相关试验及工程优化设计提供一定的参考。

关键词: 冻结砂土, 体积变形, 灰色关联分析, 敏感性分析

Abstract: In order to analyze the sensitivity of the factors affecting volumetric strain of frozen sandy soil, six internal and external affecting factors have been selected in this paper. According to the method of orthogonal experiment design, using the sandy soil from Delingha of Qinghai Province, a number of triaxial compression tests were conducted. The results were analyzed by using the grey relational analysis (GRA), the magnitude of the sensitivity of all the selected influencing factors and the sequence of them was given. The results showed that the sensitivity of water content, loading rate and temperature are more than 70%, so these factors need to be considered during the later experiments. With small water content, the volumetric strain of frozen sandy soil shows contraction first and then expansion; the axial strains corresponding to the peak stress and the peak strain are basically the same, while in saturated condition, the volumetric strain only shows volume expansion; the major influence of loading rate on frozen sandy soil was the change of the mechanical properties and failure forms. With the increase of loading rate, the amount of volumetric strain decreases, tangent modulus and peak strength increase, while the peak strain shows a decreasing tendency, the properties of frozen sandy soil approach brittleness. When temperature decreases, the cohesive force between particles increases and the pore pressure transforms into effective stress, which will increase strength and volume expansion. The results of this paper will be useful for optimal design of laboratory test and engineering application.

Key words: frozen sandy soil, volumetric deformation, grey relational analysis (GRA), sensitivity analysis

中图分类号:

TU411.3

高娟, 廖孟柯, 常丹, 白瑞强. 冻结砂土体积变形影响因素的敏感性分析[J]. 冰川冻土, 2018, 40(2): 346-354.

GAO Juan, LIAO Mengke, CHANG Dan, BAI Ruiqiang. Sensitivity analysis of the factors affecting the volumetric deformation of frozen sandy soil[J]. JOURNAL OF GLACIOLOGY AND GEOCRYOLOGY, 2018, 40(2): 346-354.

参考文献

[1] Xu Xiaozu, Wang Jiacheng, Zhang Lixin, et al. Mechanisms of frost heaving and salt expansion of soils[J]. Beijing:Science Press, 1995.[徐敩祖, 王家澄, 张立新, 等. 土体的冻胀和盐胀机理[M]. 北京:科学出版社, 1995.]
[2] Wang Zunqin, Zhu Shouquan, Yu Renpei. Salty soil in China[M]. Beijing:Science Press, 1993.[王遵亲, 祝寿泉, 俞仁培. 中国盐渍土[M]. 北京:科学出版社, 1993.]
[3] Tsytovich N A. The mechanics of frozen ground[M]. Zhang Changqing, Zhu Yuanlin, trans. Beijing:Science Press, 1985.[崔托维奇H A. 冻土力学[M]. 张长庆, 朱元林, 译. 北京:科学出版社, 1985.]
[4] Chen Xiaobai, Liu Jiankun, Liu Hongxu, et al. Frost action of soil and foundation engineering[M]. Beijing:Science Press, 2006.[陈肖柏, 刘建坤, 刘鸿绪, 等. 土的冻结作用与地基[M]. 北京:科学出版社, 2006.]
[5] Ma Wei, Zhu Yuanlin, Ma Wenting, et al. Analyses of deformation in frozen clayey soils[J]. Journal of Glaciology and Geocryology, 2000, 22(1):43-47.[马巍, 朱元林, 马文婷, 等. 冻结粘性土的变形分析[J]. 冰川冻土, 2000, 22(1):43-47.]
[6] Ma Wei, Wang Dayan. Mechanics of frozen soil[M]. Beijing:Science Press, 2014.[马巍, 王大雁. 冻土力学[M]. 北京:科学出版社, 2014.]
[7] Zhang Xiyin, Zhang Mingyi, Lu Jianguo, et al. Study of the freezing and thawing features of soil:current situation and outlook[J]. Journal of Glaciology and Geocryology, 2016, 38(6):1644-1657.[张熙胤, 张明义, 路建国, 等. 土体冻融特征研究现状与展望[J]. 冰川冻土, 2016, 38(6):1644-1657.]
[8] Yin Nan, Li Shuangyang, Shi Yehui, et al. Discrete analysis of cemented behavior of frozen loess under different confining pressure[J]. Journal of Glaciology and Geocryology, 2017, 39(4):858-867.[尹楠, 李双洋, 施烨辉, 等. 不同围压下冻结黄土胶结行为的离散元分析[J]. 冰川冻土, 2017, 39(4):858-867.]
[9] Parameswaran V R. Deformation behaviour and strength of frozen sand[J]. Canadian Geotechnical Journal, 1980, 17(1):74-88.
[10] Parameswaran V R, Jones S J. Triaxial testing of frozen sand[J]. Journal of Glaciology, 1981, 27(95):147-155.
[11] Bragg R A, Andersland O B. Strain rate, temperature, and sample size effects on compression and tensile properties of frozen soil[J]. Engineering Geology, 1981, 18:35-46.
[12] Haynes F D, Karalius J A. Effect of temperature on the strength of frozen silt:CRREL report 77-3[R]. Hanover, NH, USA:US Army Cold Regions Research and Engineering Laboratory, 1977.
[13] Haynes F D, Karalius J A, Kalafut J. Strain rate effect on the strength of frozen silt:CRREL research report 350[R]. Hanover, NH, USA:US Army Cold Regions Research and Engineering Laboratory, 1975.
[14] Zhu Yuanlin, Zhang Jiayi. Elastic and compressive deformation of frozen soils[J]. Journal of Glaciology and Geocryology, 1982, 4(3):29-39.[朱元林, 张家懿. 冻土的弹性变形及压缩变形[J]. 冰川冻土, 1982, 4(3):29-39.]
[15] He Ping, Zhu Yuanlin, Chang Xiaoxiao. Deformability and Poisson's ratio of frozen soil[J]. Underground Space, 1999, 19(5):504-507.[何平, 朱元林, 常小晓. 冻土的变形性能和泊松比[J]. 地下空间, 1999, 19(5):504-507.]
[16] Zhu Yuanlin, Carbee D L. Uniaxial compressive strength of frozen silt under constant deformation rates[J]. Cold Regions Science and Technology, 1984, 9:3-15.
[17] Ma Wei, Wu Ziwang, Chang Xiaoxiao, et al. Strength characteristics of frozen sandy soil under high confining pressure[J]. Journal of Glaciology and Geocryology, 1996, 18(3):268-272.[马巍, 吴紫汪, 常小晓, 等. 高围压下冻结砂土的强度特性[J]. 冰川冻土, 1996, 18(3):268-272.]
[18] Ma Wei, Wu Ziwang, Chang Xiaoxiao, et al. The influence of shear stress and average normal stress on the deformation of frozen soil[J]. Progress in Natural Science, 1998, 8(1):77-81.[马巍, 吴紫汪, 常小晓, 等. 剪应力强度和平均法向应力对冻土变形的相互影响[J]. 自然科学进展, 1998, 8(1):77-81.]
[19] Sun Xingliang, Wang Ren, Hu Mingjian, et al. Triaxial strength and deformation properties of frozen silty clay under low confining pressure[J]. Rock and Soil Mechanics, 2005, 26(10):1623-1627.[孙星亮, 汪稔, 胡明鉴, 等. 低围压下冻结粉质粘土的三轴强度及变形分析[J]. 岩土力学, 2005, 26(10):1623-1627.]
[20] Xu Xiangtian, Lai Yuanming, Zhou Zhiwei, et al. Laboratory investigation on the deformation and damage characteristics of frozen loess under triaxial cyclic and monotonic loading conditions[J]. Journal of Glaciology and Geocryology, 2014, 36(5):1185-1191.[徐湘田, 赖远明, 周志伟, 等. 循环与单调加载作用下冻结黄土的变形与损伤特性[J]. 冰川冻土, 2014, 36(5):1185-1191.]
[21] Zhang Shujuan, Lai Yuanming, Sun Zhizhong, et al. Volumetric strain and strength behavior of frozen soils under confinement[J]. Cold Regions Science and Technology, 2007, 47:263-270.
[22] Lai Yuanming, Yang Yugui, Chang Xiaoxiao, et al. Strength criterion and elastoplastic constitutive model of frozen silt in generalized plastic mechanics[J]. International Journal of Plasticity, 2010, 26:1461-1484.
[23] Code for engineering geological investigation of frozen ground:GB 50324-2001[S]. Beijing:China Planning Press, 2001.[冻土工程地质勘察规范:GB 50324-2001[S]. 北京:中国计划出版社, 2001.]
[24] Zhang Yuanfang, Ci Jun, Xiao Jun. Application of grey link advantage analysis in frozen soil[J]. Journal of Water Resources and Architectural Engineering, 2006, 4(1):12-14.[张远芳, 慈军, 肖俊. 灰色关联优势分析在冻土中的应用[J]. 水利与建筑工程学报, 2006, 4(1):12-14.]
[25] Tan Xuerui, Deng Julong. Grey relational analysis:a new method of multi factor statistical analysis[J]. Statistical Research, 1995, 65(3):46-48.[谭学瑞, 邓聚龙. 灰色关联分析:多因素统计分析新方法[J]. 统计研究, 1995, 65(3):46-48.]
[26] Huang Daoliang, Lin Bin. Sensitivity analysis of factors affecting mechanical properties of artificial freezing soil[J]. Mechanics in Engineering, 2012, 34(4):63-66.[黄道良, 林斌. 人工冻土力学性能影响因素敏感性分析[J]. 力学与实践, 2012, 34(4):63-66.]
[27] Kang Feng, Liu Zhiwei. Study on the influence of temperature on the strength of frozen soil[J]. Highways and Transportation in Inner Mongolia, 2015(4):22-25.[亢锋, 刘志伟. 温度对冻土强度的影响研究[J]. 内蒙古公路与运输, 2015(4):22-25.]

冻结砂土体积变形影响因素的敏感性分析

Sensitivity analysis of the factors affecting the volumetric deformation of frozen sandy soil

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