摘要
为了研究冻土-复合土工膜-混凝土界面抗剪强度的形成及特征,进行了考虑抗剪温度、含水率、法向应力等因素影响下的直剪试验。建立考虑含水率、法向应力、冻结温度条件的冻土-复合土工膜-混凝土界面抗剪强度回归方程,为寒旱区刚柔复合衬砌渠道的抗冻胀设计和施工提供科学依据。
In order to study the formation and characteristics of shear strength of frozen soil composite geomembrane concrete interface,a direct shear test considering the effects of shear temperature,moisture content and normal stress is carried out in this paper.The regression equation of shear strength of frozen soil composite geomembrane concrete interface considering moisture content,normal stress and shear temperature is also established.The research of this paper can provide a scientific basis for the frost heave resistance design and construction of rigid and flexible composite lined canals in cold and arid areas.
作者
唐少容
任磊
TANG Shaorong;REN Lei(College of Civil and Hydraulic Engineering,Ningxia University,Yinchuan 750021,China;Ningxia Research Center of Technology on Water-saving Irrigation and Water Resources Regulation,Yinchuan 750021,China;Engineering Research Center for Efficient Utilization of Water Resources in Modern Agriculture on Arid Regions,Yinchuan 750021,China)
出处
《水科学与工程技术》
2022年第6期71-74,共4页
Water Sciences and Engineering Technology
基金
宁夏自然科学基金项目(2021AAC03021)
宁夏重点研发项目(2018BEB04035)
宁夏高等学校一流学科建设项目(NXYLXK2021A03)。
关键词
冻土
复合土工膜
直剪试验
寒旱区
刚柔复合衬砌渠道
frozen soil
composite geomembrane
direct shear test
cold and arid areas
rigid-flexible composite lining canal
