摘要
通过离心模型试验,研究了高填方路堤在不同设计干密度和含水量条件下的沉降变形特征,沉降变形与填筑体的干密度和含水量之间的关系,以及在相同干密度、相同含水量条件下,填土的不同粒径含量配比对路基沉降变形的影响。研究结果表明:路堤垂直沉降的总体趋势随深度增加而递减;在含水量和干密度相同的条件下,路堤最大沉降值出现在P5(大于0.5mm的颗粒含量)达到65%左右。
By centrifugal model experiments, settlement behavior of high filling embankments different dry density and water content conditions is researched, and it analyzed relation between settlement and dry density and water content, the impact of mixture ration on settlement under same dry density and water content conditions.Conclusions are drawed as follows ：vertical settlement decreases generally as increasing of depth;settlement of embankments reaches maximum value when the content of the particle bigger than 0.5 millimeter reach 65 percent under same dry density and water content conditions.
出处
《现代交通技术》
2007年第6期5-8,共4页
Modern Transportation Technology
关键词
高填方路堤
沉降变形
离心模型试验
high filling embankments
settlement
centrifugal model experiment
