摘要
为了研究自然气候条件下膨胀土路基内部土体温度变化规律,在某膨胀土路堤内部进行了一年多的现场跟踪观测,分析了不同位置土体温度随时间变化的变化规律,发现了不同深度路基的温度变化滞后性和温度场分布季节差异性,并对其特点和成因进行了描述和解释.根据温度变幅标志,推测出了当地膨胀土气候剧烈影响深度,可作为相关工程处治的参考依据.
In order to study the variation of temperature in expansive soil subgrade with natural weather condition,a field observing was implemented in an expansive subgrade slope for one year,an analysis of variation rule of temperature with time in different location was made,the changing hysteresis of temperature and seasonly difference of temperature filed distribution was observed,a description and explanation for its characteristic and causes was made.According to the index of temperature changing range,the result shows that the severe climate can influence the depth of local expansive soil,which may provide reference for engineering treatment.
出处
《长沙理工大学学报（自然科学版）》
CAS
2007年第4期12-15,共4页
Journal of Changsha University of Science and Technology:Natural Science
基金
交通部西部交通建设科技项目(2002318000)
关键词
膨胀土
温度
现场观测
气候影响深度
expansive soil
temperature
field observation
climate-influenced depth
