摘要
在我国西北地区,混凝土衬砌渠道直接修建在冻土上,冻土的膨胀及沉降与渠道破坏有着密切的关系。混凝土衬砌渠道的冻胀破坏力学模型受衬砌型式、材料、温度、水分、土质等多方面因素影响。基于前人的研究现状,从理论上分析了土体组分、密度、水分对渠道衬砌冻胀的影响。利用ANSYS有限元软件,建立混凝土渠道数学模型,分析温度场分布、总位移场分布、主应力分布,希望为今后混凝土衬砌防冻胀研究提供帮助。
In northwest region in China, the concrete expansion of the frozen soil with subsidence and lining channel directly built on permafrost, the damage has the close relationship between channels. Channel concrete lining of frost heaving damage mechanics model by lining type, material, tempera- ture, water, soil and other various factors. Based on the predecessors＇ research status, first theoretically studied the soil composition, density, water effect on the frost heave of canal lining. Then by using ANSYS finite element software, the establishment of a concrete channel mathematical model, the temperature field distribution, the total displacement field distribution, the principal stress distribution. Hope for the future anti - freezing concrete lining bulge research to offer help.
出处
《水利科技与经济》
2015年第8期27-29,共3页
Water Conservancy Science and Technology and Economy
关键词
混凝土
衬砌渠道
冻胀破坏
数值模拟
concrete
lining channels
frost heaving damage
numerical simulation
