极端气候事件对膨胀土路基水毁影响的研究  

Effect of extreme climate events on expansive soil roadbed water-destroyed

作　　者：张天翔 丁加明[2,3] 芮继东 

机构地区：[1]湖南国广置业有限公司,湖南长沙410007 [2]湖南省交通厅交通建设造价管理站,湖南长沙410011 [3]清华大学土木水利学院,北京100084 [4]中国建筑标准设计研究院,北京100048

出　　处：《铁道科学与工程学报》2011年第2期68-70,共3页Journal of Railway Science and Engineering

基　　金：国家自然科学基金资助项目(50808179;50978097;50678177);国家科技支撑计划项目(2006BAJ04A01-3)

摘　　要：定性地分析了极端气候事件对膨胀土路基水毁的影响,指出日降雨极值和干旱持续时间是影响膨胀土路基水毁的极端气候事件。定量地计算了不同重现期的日降雨极值和不同干旱级别的干旱持续时间对膨胀土路基水毁的影响。The effect of extreme climate events on expansive soil roadbed water - destroyed was analyzed. The effect of maximum value of daily rainfall in different return periods and the different drought durations to expansive soil roadbed water - destroyed were calculated quantitatively. The analysis results show that the maximum value of daily rainfall and drought duration are the extreme climate events which affects the expansive soil road- bed water - destroyed.

关 键 词：极端气候事件 膨胀土路基 水毁 

分 类 号：TU475.5[建筑科学—结构工程]