含盐冻土物理力学性质研究现状与进展

doi:10.7522/j.issn.1000-0240.2013.0169

冰川冻土 ›› 2013, Vol. 35 ›› Issue (6): 1527-1535.doi: 10.7522/j.issn.1000-0240.2013.0169

含盐冻土物理力学性质研究现状与进展

张英^1,2, 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:2013-02-09 修回日期:2013-05-27 出版日期:2013-12-25 发布日期:2014-01-11
通讯作者: 邴慧，E-mail: binghui@lzb.ac.cn E-mail:binghui@lzb.ac.cn
作者简介:张英（1989- ），女，陕西宝鸡人，2012年毕业于西安理工大学，现为中国科学院寒区旱区环境与工程研究所硕士研究生，主要从事盐渍化冻土物理力学性质的研究. E-mail: zhangying@lzb.ac.cn
基金资助:
国家重点基础研究发展计划(973计划)项目(2012CB026106)；国家自然科学基金优秀国家重点实验室研究项目(41023003)；国家自然科学基金项目(41371090；41230630；40901039)；冻土工程国家重点实验室自主课题(SKLFSE-ZT-08)资助

Study of the Physical and Mechanical Properties of Saline Frozen Soil: Research Status and Progress

ZHANG Ying^1,2, BING Hui*¹

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

Received:2013-02-09 Revised:2013-05-27 Online:2013-12-25 Published:2014-01-11

摘要/Abstract

摘要：

综述和评价了含盐冻土物理力学性质研究的文献和进展，包括冻融过程中水盐迁移机理、冻胀机理、盐渍冻土物理力学参数和冻融循环对含盐土力学性质影响等方面的研究，总结归纳了含盐土研究的主要结论和目前存在的问题，在此基础上提出了冻融过程中含盐冻土物理力学性质研究的重点，如水盐迁移、冻胀-盐胀机理和盐渍化冻土结构性等. 鉴于对含盐土研究中所存在的问题，今后应从以下方面着手深入研究：将室外试验纳入到含盐土物理力学性质的研究中，对含盐土研究中试验样品尽量以原状土代替，以野外试验研究补充完善室内试验；应用定量研究含盐土的微观结构和孔隙特征来描述土体的宏观物理力学性质，通过不同试验方法结合寻求更加适合土壤微结构图像处理的新方法；对仪器设备改进，采取合理有效的方法加强盐渍化冻土水盐运移参数试验.

关键词: 含盐冻土, 冻融过程, 水盐迁移, 盐胀

Abstract:

Study of the physical and mechanical properties of saline soil has practical significance for solving salt expansion and frost heave damage problems in engineering. In this paper, a general overview about new research progress is presented in mechanisms of salt expansion, water and salt transfer and influence of freeze-thaw cycles on mechanical properties of saline frozen soil at home and abroad. The main findings and the current problems about salinity frozen soil in these aspects have been summed up. Researching priorities of physical and mechanical properties of saline frozen soil under freeze-thaw cycles, for example, the water and salt transfer, mechanism of salt expansion and the structure of saline frozen soil, are put forward so as to have a better service for engineering construction. The feasible study directions in the future are proposed.

Key words: saline frozen soil, freeze-thaw process, water and salt transfer, salt expansion

中图分类号:

P642.14

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.

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.

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含盐冻土物理力学性质研究现状与进展

Study of the Physical and Mechanical Properties of Saline Frozen Soil: Research Status and Progress

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