冻融循环对土结构性影响的机理与定量研究方法

doi:10.7522/j.issn.1000-0240.2015.0014

冰川冻土 ›› 2015, Vol. 37 ›› Issue (1): 132-137.doi: 10.7522/j.issn.1000-0240.2015.0014

冻融循环对土结构性影响的机理与定量研究方法

郑郧^1,2, 马巍¹, 邴慧¹

1. 中国科学院寒区旱区环境与工程研究所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

收稿日期:2014-08-10 修回日期:2014-11-19 出版日期:2015-02-25 发布日期:2015-03-23
通讯作者: 马巍,E-mail:mawei@lzb.ac.cn. E-mail:mawei@lzb.ac.cn
作者简介:郑郧(1986-),女,湖北十堰人,2012年在中国科学院武汉岩土力学研究所获硕士学位,现为中国科学院寒区旱区环境与工程研究所在读博士研究生,主要从事土结构性方面的研究工作.E-mail:yunzheng@lzb.ac.cn
基金资助:
国家自然科学基金优秀国家重点实验室研究项目(41023003); 国家自然科学基金创新研究群体项目(41121061); 国家自然科学基金项目(41371090); 冻土工程国家重点实验室自主课题(SKLFSE-ZT-08)资助

Impact of freezing and thawing cycles on the structures of soil and a quantitative approach

ZHENG Yun^1,2, MA Wei¹, BING Hui¹

1. State Key Laboratory of Frozen Soil Engineering, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China;
2. University of Chinese Academy of Sciences, Beijing 100049, China

Received:2014-08-10 Revised:2014-11-19 Online:2015-02-25 Published:2015-03-23

摘要/Abstract

摘要：

冻融循环对不同土的结构性具有不同的影响效果, 通过探讨冻融循环对土结构性影响的机理, 认为土的三相组成是水分相变和水分迁移的基础; 在冻融过程中, 土的三相比例与分布在不断地发生变化, 导致土的结构性随冻融循环发生改变. 对土的结构性要素进行了讨论, 建立了适于定量分析的结构性要素层次划分体系, 定义"冻融结构势"作为土体结构性的定量参数, 提出用结构性要素在冻融循环过程中的变化率来估计土体的损伤比, 初步探索了冻融循环对土结构性影响的定量研究方法.

关键词: 冻融循环, 结构性, 定量研究

Abstract:

Freezing-thawing cycles have different effects on the structures of different soils. The impact of freezing-thawing cycles on the micro-structure of soil is studied, considering that the three-phase composition of soil is fundamental to the phase change of water and moisture migration among soil particles. The change of proportions of three-phase components and their forms due to freezing-thawing cycles result in the changes in the structures of soil particles. In the paper, the main components in a soil structure system are discussed. A parameter, which is defined as "Structural Potential of Freezing-Thawing", is proposed to quantitatively describe the key components change in the soil fabrics. The degree of the soil damage can be mathematically estimated by the rate of key component change in soil structures due to freezing-thawing cycles.

Key words: freezing-thawing cycles, constitutive property, quantitative approach

中图分类号:

P642.14

郑郧, 马巍, 邴慧. 冻融循环对土结构性影响的机理与定量研究方法[J]. 冰川冻土, 2015, 37(1): 132-137.

ZHENG Yun, MA Wei, BING Hui. Impact of freezing and thawing cycles on the structures of soil and a quantitative approach[J]. JOURNAL OF GLACIOLOGY AND GEOCRYOLOGY, 2015, 37(1): 132-137.

参考文献

[1] Shen Zhujiang. Engineering properties of soft soils and design of soft ground[J]. Chinese Journal of Geotechnical Engineering, 1998, 21(1):100-111. [沈珠江. 软土工程特性和软土地基设计[J]. 岩土工程学报, 1998, 21(1):100-111.]
[2] Gong Xiaonan, Xiong Chuanxiang, Xiang Kexiang, et al. The formation of clay structure and its influence on mechanical characteristics of clay[J]. Journal of Hydraulic Engineering, 2000, 31(10):43-47. [龚晓南, 熊传祥, 项可祥, 等. 黏土结构性对其力学性质的影响及形成原因分析[J]. 水利学报, 2000, 31(10):43-47.]
[3] Xie Dingyi. Exploration of some new tendencies in research of losses soil mechanics[J]. Chinese Journal of Geotechnical Engineering, 2001, 23(1):3-13. [谢定义. 试论我国黄土力学研究中的若干新趋向[J]. 岩土工程学报, 2001, 23(1):3-13.]
[4] Wang Weina, Zhi Xilan, Mao Xuesong, et al. Experimental study of resilience modulus of subgrade soil under circles of freezing and thawing[J]. Journal of Glaciology and Geocryology, 2010, 32(5):954-959. [王威娜, 支喜兰, 毛雪松, 等. 冻融循环作用下路基土回弹模量试验研究[J]. 冰川冻土, 2010, 32(5):954-959.]
[5] Wang Quan, Ma Wei, Zhang Ze, et al. Research on the secondary collapse properties of loess under freeze-thaw cycle[J]. Journal of Glaciology and Geocryology, 2013, 35(2):376-382. [王泉, 马巍, 张泽, 等. 冻融循环对黄土二次湿陷特性的影响研究[J]. 冰川冻土, 2013, 35(2):376-382.]
[6] Fang Lili, Qi Jilin, Ma Wei. Freeze-thaw induced changes in soil structure and its relationship with variations in strength[J]. Journal of Glaciology and Geocryology, 2012, 34(2):435-440. [方丽莉, 齐吉琳, 马巍. 冻融作用对土结构性的影响及其导致的强度变化[J]. 冰川冻土, 2012, 34(2):435-440.]
[7] Zhang Shimin, Li Shuangyang. Experimental study of the Tibetan silty clay under freeze-thaw cycles[J]. Journal of Glaciology and Geocryology, 2012, 34(3):625-631. [张世民, 李双洋. 青藏粉质黏土冻融循环试验研究[J]. 冰川冻土, 2012, 34(3):625-631.]
[8] Dong Xiaohong, Zhang Aijun, Lian Jiangbo, et al. Study of shear strength deterioration of loess under repeated freezing-thawing cycles[J]. Journal of Glaciology and Geocryology, 2010, 32(4):767-772. [董晓宏, 张爱军, 连江波, 等. 反复冻融下黄土抗剪强度劣化的试验研究[J]. 冰川冻土, 2010, 32(4):767-772.]
[9] Zhang Lianhai, Ma Wei, Yang Chengsong, et al. A review and prospect of the thermodynamics of soils subjected to freezing and thawing[J]. Journal of Glaciology and Geocryology, 2013, 35(6):1505-1518. [张莲海, 马巍, 杨成松, 等. 土在冻结及融化过程中的热力学研究现状与展望[J]. 冰川冻土, 2013, 35(6):1505-1518.]
[10] Zhang Ying, Bing Hui. Study of the physical and mechanical properties of saline frozen soil:Research status and progress[J]. Journal of Glaciology and Geocryology, 2013, 35(6):1527-1535. [张英, 邴慧. 含盐冻土物理力学性质研究现状与进展[J]. 冰川冻土, 2013, 35(6):1527-1535.]
[11] Chen Shijie, Zhao Shuping, Ma Wei, et al. Studying frozen soil with CT technology:Present studies and prospects[J]. Journal of Glaciology and Geocryology, 2013, 35(1):193-200. [陈世杰, 赵淑萍, 马巍, 等. 利用CT扫描技术进行冻土研究的现状和展望[J]. 冰川冻土, 2013, 35(1):193-200.]
[12] Graham J, Au V C S. Effects of freeze-thaw and softening on a natural clay at low stresses[J]. Canadian Geotechnical Journal, 1985, 22(1):69-78.
[13] Leroueil S, Tardif J, Roy M, et al. Effects of frost on the mechanical behavior of Champlain Sea Clays[J]. Canadian Geotechnical Journal, 1991, 28(5):690-697.
[14] Viklander P. Permeability and volume changes in till due to cyclic freeze-thaw[J]. Canadian Geotechnical Journal, 1998, 35(3):471-477.
[15] Alkire B D, Morrison J M. Change in soil structure due to freeze-thaw and repeated loading[J]. Transportation Research Record, 1983, 918:15-21.
[16] Ono T, Mitachi T. Computer controlled triaxial freeze-thaw-shear apparatus[C]//Proceedings of 8th Internation Symposium on Ground Freezing. Rotterdam, the Netherlands:A. A. Balkema, 1997:335-339.
[17] Qi Jilin, Ma Wei. Influence of freezing-thawing on strength of over consolidated soils[J]. Chinese Journal of Geotechnical Engineering, 2006, 28(12):2082-2086. [齐吉琳, 马巍. 冻融作用对超固结土强度的影响[J]. 岩土工程学报, 2006, 28(12):2082-2086.]
[18] Xu Xiaozu, Wang Jiacheng, Zhang Lixin. Frozen soil physics[M]. 2nd ed. Beijing:Science Press, 2010. [徐敩祖, 王家澄, 张立新. 冻土物理学[M]. 2版. 北京:科学出版社, 2010.]
[19] Xie Dingyi, Qi Jilin. Soil structure characteristics and new approach in research on its quantitative parameter[J]. Chinese Journal of Geotechnical Engineering, 1999, 21(6):651-656. [谢定义, 齐吉琳. 土结构性及其定量化参数研究的新途径[J]. 岩土工程学报, 1999, 21(6):651-656.]
[20] Shi Bin. Review and prospect on the microstructure of clayey soil[J]. Journal of Engineering Geology, 1996, 4(1):39-44. [施斌. 黏性土微观结构研究回顾与展望[J]. 工程地质学报, 1996, 4(1):39-44.]
[21] Hu Ruilin, Li Xiangquan, Guan Guolin, et al. Quantitative model of clay soil microstructure and its engineering geological characteristics[M]. Beijing:Geological Publishing House, 1995. [胡瑞林, 李向全, 官国琳, 等. 黏性土微结构定量模型及其工程地质特征研究[M]. 北京:地质出版社, 1995.]

冻融循环对土结构性影响的机理与定量研究方法

Impact of freezing and thawing cycles on the structures of soil and a quantitative approach

PDF (PC)

赞

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

Metrics

本文评价

推荐阅读 0

[1]	张向东, 任昆. 煤渣改良土的抗冻能力及损伤特性研究[J]. 冰川冻土, 2018, 40(4): 764-772.
[2]	侯鑫, 马巍, 李国玉, 周志伟, 黄永庭. 冻融循环对硅酸钠固化黄土力学性质的影响[J]. 冰川冻土, 2018, 40(1): 86-93.
[3]	王永岩, 柳雪庆, 苏传奇, 张余标, 魏剑. 冻融循环对不同孔隙率页岩相似材料影响的试验研究[J]. 冰川冻土, 2018, 40(1): 102-109.
[4]	房建宏, 陈鑫, 徐安花, 张泽. 冻融循环对青藏红黏土物理力学性质影响试验研究[J]. 冰川冻土, 2018, 40(1): 62-69.
[5]	崔宏环, 裴国陆, 姚世军, 王高勇, 张治国. 不同养生龄期下水泥土经冻融循环后力学性能试验探究[J]. 冰川冻土, 2018, 40(1): 110-115.
[6]	张向东, 任昆, 李军. EPS颗粒改良土作为寒区路基填料的抗冻性能研究[J]. 冰川冻土, 2017, 39(6): 1273-1280.
[7]	张琳瑶, 刘大翔, 许文年, 童标. 冻融循环条件下生境基材中三种功能微生物数量变化规律研究[J]. 冰川冻土, 2017, 39(5): 1122-1129.
[8]	刘雨彤, 杨林. 冻融作用下PPF稳定土力学性能研究[J]. 冰川冻土, 2017, 39(4): 850-857.
[9]	王强, 尹钰婷, 崔进杨, 汤瑞. 冻融循环条件下水泥固化铅污染土强度模型研究[J]. 冰川冻土, 2017, 39(3): 623-628.
[10]	路亚妮, 李新平, 吴兴宏. 单轴压缩条件下裂隙岩样冻融损伤破坏模式分析[J]. 冰川冻土, 2017, 39(2): 351-357.
[11]	张鹏, 李春城, 李国玉, 王学力, 王飞. 冻融循环对多年冻土区石油迁移影响试验研究[J]. 冰川冻土, 2016, 38(5): 1325-1331.
[12]	李丽, 张坤, 张青龙, 毛云程, 李国玉. 干湿和冻融循环作用下黄土强度劣化特性试验研究[J]. 冰川冻土, 2016, 38(4): 1142-1149.
[13]	佘芳涛, 马纯阳, 张俊岱. 基于黄土结构损伤的地裂缝局部化破裂发展机制[J]. 冰川冻土, 2016, 38(4): 1150-1156.
[14]	谌文武, 刘伟, 林高潮, 吴玮江, 宿星. 天水黄土结构性变化诱发滑坡敏感性分析[J]. 冰川冻土, 2016, 38(4): 929-936.
[15]	崔宏环, 刘建坤, 张立群, 李仲玉. 寒区路基改良土冻融循环与荷载耦合作用下损伤力学研究[J]. 冰川冻土, 2016, 38(4): 1183-1188.