摘要
为研究寒区路基土的冻胀特性,结合阜新至盘锦高速公路工程实际,基于线性冻胀率的计算原理,考虑温度、含水率及压实度3方面因素对寒区路基土的冻胀特性进行了分析,提出了寒区路基土线性冻胀率预测模型.回归分析结果表明:不同冻结温度和含水率综合作用下路基土线性冻胀率预测模型的相关性系数均在0.90以上,拟合效果良好.
To study cold and frost heaving characteristics of subgrade soil in cold region, combining the engineering practice of the highway from Fuxin to Panjin, based on the calculation principle of the linear rate of frost heave, the heaving characteristic is analyzed in three aspects: temperature, moisture content and compaction so as to put forward the cold and linear subgrade soil frost heave rate prediction model. The regression analysis results show that the correlation coefficient of the prediction model of linear frost heave rate of subgrade soil under the comprehensive action of different freezing temperature and water content is above 0.90, and the fitting effect is good.
作者
迟丹
CHI Dan(China Railway 19th Bureau Group 3rd Co.Ltd.,Shenyang 110136,China)
出处
《兰州工业学院学报》
2020年第4期31-35,共5页
Journal of Lanzhou Institute of Technology
关键词
线性冻胀率
冻结温度
含水率
压实度
路基
linear frost heaving rate
freezing temperature
moisture content
compaction
subgrade
