交通荷载作用下高速公路路基动力稳定性研究  

STUDY ON DYNAMIC STABILITY OF HIGHWAY SUBGRADE UNDER TRAFFIC LOADS

作　　者：高瑜[1] 李驰[1] 黄浩[1] 

机构地区：[1]内蒙古工业大学土木工程学院,呼和浩特010051

出　　处：《内蒙古农业大学学报（自然科学版）》2010年第3期196-200,共5页Journal of Inner Mongolia Agricultural University(Natural Science Edition)

基　　金：内蒙古工业大学科学研究重点项目(ZD200804)

摘　　要：建立高速公路有限差分离散模型,以汽车交通荷载为例,研究汽车荷载按照最不利情况静置和汽车荷载移动过程中,高速公路路基顶面的最大竖向位移和最大拉应力的变化规律,并对交通荷载作用下高速公路路基动力稳定性进行评价。A numerical model has put forward based on the finite-difference method.Takes the vehicle traffic load as an example,studied the variation of the maximum vertical displacement and the maximum tensile stress on the top surface of highway subgrade in conditions that the vehicle load standing as the most unfavorable situation and during the process that the traffic load moving in one-way or two-way.Analyzing the numerical results,the dynamic stability of highway subgrade is evaluated.

关 键 词：岩土动力学 交通荷载 高速公路路基 动力稳定性 

分 类 号：TU431[建筑科学—岩土工程]