摘要
面对日益增加的交通流量,增加公路容量迫在眉睫,拓宽原有公路是近年来的热点。新拓宽路基因新路堤自重应力产生不均匀沉降,不均匀沉降会导致路面开裂,减小新拓宽路基不均匀沉降的快捷有效方法是桩基。文中采用ELAC2D办件研究了拓宽路基中不同桩长和桩体模量的复合地基形状,得到了桩长和桩体模量对拓宽路基水平位移、沉降、不均匀沉降的影响规律,指导公路拓宽工程建设。
Due to the requirement of increasing traffic, it is very urgent to widen the existing highways in China. The additional stresses will cause differential settlements; the differential settlement may lead to cracks of pavement sections. Pile foundation would be an effective solution to remedy the problem.Two-dimensional finite difference software： FLAC^2D was used to study deformations of the widened embankments over soft soil with Pile. The results of the paper include the vertical and the horizontal displacements, the differential settlements. Suggestions are made for the construction of the widening of embankments.
出处
《低温建筑技术》
2009年第4期97-100,共4页
Low Temperature Architecture Technology
关键词
软土路基
有限差分法
拓宽
不均匀沉降
桩土应力比
soft soil
finite difference
widening
differential settlements
pile- soil stress ratio
