土工格栅加筋路堤边坡数值模拟研究

Numerical simulation of embankment slope reinforced with geogrid

随着我国经济的发展,目前的交通量进一步增大,因此需要在公路建设中选择更加经久耐用的结构形式。土工加筋路堤可以通过在路堤中加入土工格栅等筋材来提高路堤的力学性能,增强其稳定性,但是对于加筋路堤的工作性状及其稳定性的研究方法,仍然没有一种非常准确直观的方法来对其进行分析。本文通过选取ABAQUS有限元软件,根据有限元软件分析理论的基本理论,结合其中有限元的基本方程,采用强度折减法有限元理论,对土工格栅加筋路堤边坡进行数值模拟研究,分别研究路堤在加筋和不加筋条件下的工作性状,得出有限元软件能够有效模拟路堤的工作性状,同时对土工格栅加筋路堤边坡进行研究,得到路堤加筋后,其工作性状明显优于不加筋路堤。

With the development of my country's economy,the current traffic volume has further increased,so it is necessary to choose a more durable structural form in highway construction.Geo-reinforced embankments can be reinforced by adding geogrids and other reinforcement materials to the embankment to improve the mechanical properties of the embankment and enhance its stability.However,there is still no very accurate method for studying the working characteristics and stability of reinforced embankments.Intuitive way to analyze it.In this paper,by selecting the ABAQUS finite element software,based on the basic theory of the finite element software analysis theory,combined with the basic equations of the finite element,the strength reduction method of finite element theory is used to conduct a numerical simulation study on the geogrid reinforced embankment slope,respectively.The working behavior of embankment under reinforced and unreinforced conditions,it is concluded that the finite element software can effectively simulate the working behavior of embankment,and at the same time,the embankment slope reinforced by geogrid is studied.After the embankment is reinforced,its working behavior is obvious Better than unreinforced embankment.