水道港口2023，Vol.44Issue(5)：801-810,10.
气态水补给条件下不同类型土水分迁移规律及冻胀特性研究
Study on water migration and frost heave characteristics of different soil types under gaseous water replenishment
摘要
Abstract
In the past,the independent research and development of moisture migration and frost heave test equipment were conducted.Additionally,artificial preparations of sand,75%sand +25%silty clay,and 25%sand +75%silty clay were analyzed for moisture migration patterns and frost heaving characteristics under water vapor conditions.Different types of soil specimens were analyzed for their freezing time and moisture content,as well as the amount of frost heaving and frost heaving force,and the changing rules were examined.Furthermore,fitting formulas for the amount of frost heaving and frost heaving force of different types of soil specimens were established.The results show that soil properties have a significant effect on water migration,with an increase in fine particle content in the soil,the temperature fields of different types of soil samples tend to stabilize after 7 days of freezing.The sand sample has a frost heaving capacity of 0.71 mm,the 75%sand + 25%silty clay sample has a frost heaving capacity of 0.55 mm,the 25%sand + 75%silty clay sample has a frost heaving capacity of 0.36 mm,and the silty clay sample has little change.The frost heaving force of different types of soil has a positive linear relationship with an increase in freezing time.The frost heaving force of samples at the same height decreases with an increase in fine particle content in the soil.关键词
土性/水汽补给/水分迁移/冻胀力/冻胀量Key words
soil property/water vapor supply/water migration/frost heaving force/amount of frost heaving分类
交通工程引用本文复制引用
雷华阳,张文振,胡彪,李其昂..气态水补给条件下不同类型土水分迁移规律及冻胀特性研究[J].水道港口,2023,44(5):801-810,10.基金项目
国家自然科学基金项目(52078334) （52078334）
国家重点研发计划项目(2017YFC0805402) （2017YFC0805402）
土木工程防灾国家重点实验室开放基金项目(SLDRCE17-01) （SLDRCE17-01）
