硫酸盐渍土盐冻胀机理研究现状与进展
摘要:盐渍土地区发生的土体盐冻胀破坏严重危害到渠道、公路、铁路、机场跑道、桥梁等工程建筑的稳定性和耐久性,因此解决实际工程中的盐胀及冻胀等病害问题具有十分重要的意义。从微观结构、单次降温、冻融循环、水盐运移和构建机理模型等方面综述了近年来国内外关于盐冻胀机理的最新研究成果,总结了目前研究中存在的问题及不足,并对今后盐渍土盐冻胀机理的研究方向进行了展望。
Abstract:The salt and frost heaving damage of soil in the saline soil area seriously endangers the stability and durability of pipelines,highways,railways,airport runways,bridges and other engineering buildings.Therefore,it is very important meaning to solve the problems of salt and frost heaving in actual engineering.In this paper,the latest research results on the mechanism of salt frost heaving in recent years are reviewed from the aspects of microstructure,single cooling,freeze-thaw cycle,water-salt migration and construction mechanism model.The problems and shortcomings in the current research are summarized,and the research direction of salt freezing and swelling mechanism of saline soil is prospected.
中文标题:
硫酸盐渍土盐冻胀机理研究现状与进展
Research Status and Development of Salt and Frost Heaving Theory Insulfate Saline soil
作者:
王景辉,张卫兵
Wang Jinghui,Zhang Weibing
作者简介:王景辉,男,1995年生,汉族,宁夏固原人,硕士研究生,主要从事盐渍土机理研究。E-mail:2782270181@qq.com
通讯地址:
宁夏大学土木与水利工程学院, 宁夏银川 750021 2.旱区现代农业水资源高效利用教育部工程研究中心, 宁夏银川 750021
CollegeofCivilandHydraulicEngineering,NingxiaUniversity,Yinchuan750021,Ningxia,China;2.EngineeringResearchCenteroftheMinistryofEducationfortheModernUtilizationofModernAgriculturalWaterResourcesinAridAreas,Yinchuan750021,Ningxia,China
中图分类号:P642.13
doi:10.3969/j.issn.1007-2993.2019.04.001
出版物:岩土工程技术
收稿日期:2019-01-14
关键词:盐渍土,盐胀,冻胀,冻融循环,水盐运移,机理模型
Key words:saline soil,salt heaving,frost heaving,freeze-thaw cycle,water-salt transport,theoretical model
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基金项目:
基金项目: 宁夏自然科学基金项目(NZ17013);宁夏回族自治区重点研发计划一般项目(2018BEE03005)
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