摘要
在泰赣高速公路k203～k215段,通过调研发现有一半以上的高边坡是全风化花岗岩坡体,本文通过数值模拟对全风化花岗岩坡体的变形破坏机理进行研究,应用FLAC3D软件对边坡进行反复试算,建立了临界状态全风化花岗岩坡体模型,并确定了临界坡角约为60°,从而可以对全风化花岗岩坡体破坏的判断提供参考,对全风化花岗岩边坡的支护有一定的指导意义.
Accord to investigate at k203～k215 in TaiGan freeway, We found half of high slope are completely decomposed granite slope.This paper adopted numerical simulation method to analyze the deformation and failure mechanism of high slope,carrying on to slope to try to calculate again and again used FLAC3D software,built the model of critical state of completely decomposed granite slope,and obtained a result that the gradient thresholds are about 60 degree.It's can provide the reference to identify the failure of completely decomposed granite slope,and has the certain leading meaning to support of slope.
出处
《华东交通大学学报》
2006年第5期12-15,共4页
Journal of East China Jiaotong University
关键词
全风化花岗岩
高边坡
数值模拟
临界坡角
completely decomposed granite
high slope
numerical simulation
critical gradient
