摘要
为研究路基堆填时原地面的水平及竖向位移情况,以广州某新建高速公路填方路基为依托,运用FLAC3D有限差分软件进行路基数值建模分析,模拟了路基在不同填筑高度、填土模量、填土密度及地基土模量时原地面的竖向及水平位移发展情况。结果显示:在离路面中心点越远,竖向位移越小,但水平位移在坡脚附近达到最大;路基填土模量对原地面竖向、水平位移基本无影响;路基填土密度以及地基土模量对原地面竖向、水平位移有明显影响。
In order to study the horizontal and vertical displacement of the original surface during the subgrade flling,based on the subgrade of a newly built expressway in Guangzhou,this paper uses FLAC 3D finite difference sofware to conduct numerical modeling and analysis of the subgrade,and simulates the development of the horizontal and vertical displacement of the subgrade at different filling heights,different filling modulus,different filling density and different foundation soil modulus of subgrade.The results show that the farther away from the center point of the road surface,the smaller the vertical displacement,but the horizontal displacement reaches the maximum near the toe of the slope;the subgrade fll modulus has no effect on the vertical and horizontal displacement of the original ground;the subgrade fill density and foundation The soil modulus has a significant effect on the vertical and horizontal displacement ofthe original ground.
作者
熊家全
XIONG Jia-quan(Guangzhou Traffic Engineering Quality Supervision Station,Guangzhou 510000,China)
出处
《工程建设与设计》
2023年第17期124-127,共4页
Construction & Design for Engineering
