摘要
针对加筋挡墙筋材与挡墙及墙后填土的相互作用机理，采用有限元方法对加筋挡墙进行力学分析。介绍了不同介面间接触、单元网格划分及荷载设定等问题的解决方案。最后，通过实际算例得到墙后填土路堤中筋材的拉应力是沿筋带长度呈抛物线状分布，中间层位筋带的水平位移值是顶端和底部层位筋带的2～5倍等受力特点。
Aiming at the interaction mechanism of reinforced retaining wall material,retaining wall and filling behind the wall,the mechanics of reinforced retaining wall is analyzed by means of finite element method.The relevant resolutions are presented about contacting within different interface,element grid division and load setting,etc.Finally,through the practical calculation,the tensile stress of the reinforced steel in the embankment(filling behind the wall) is distributed in the form of parabola along reinforced steel belt,and the horizontal displacement value of the interlayer reinforced steel belt is 2-5 times as large as the value of the top and the bottom.
出处
《中国市政工程》
2011年第3期73-75,91,共3页
China Municipal Engineering
关键词
加筋挡墙
土工格栅
有限元法
reinforced retaining wall
geogrid
finite element method
