基于ABAQUS的不同宽度公路路基加筋效果比较分析  

Comparative Analysis of Reinforcement Effect for Highway Subgrade with Different Width Based on ABAQUS

作　　者：罗昌廷 LUO Chang-ting(Guangxi Xinchangjiang Expressway Co., Ltd., Nanning,Guangxi,530022)

机构地区：[1]广西新长江高速公路有限责任公司,广西南宁530022

出　　处：《西部交通科技》2019年第2期44-47,96,共5页Western China Communications Science & Technology

摘　　要：土工织物是一种主要的土工合成材料,因其具有强度高、质量轻、渗滤性好及良好的隔离作用等优点常被选作路用加筋材料。文章采用非线性有限元软件ABAQUS模拟分析不同宽度公路路基加筋前后的沉降变形和侧向位移情况。模拟结果表明:当路基宽度较小时,土工织物的加筋作用使路基竖向沉降量有效减小,并提高稳定性;当路基宽度较大时对沉降及侧向位移影响不大。因此,是否选用土工织物降低构筑物的竖向沉降,应根据工程的实际情况而定。该研究成果可为工程实践提供理论参考。Geotextile is a kind of main geosynthetic material,it is often selected as a road reinforcement material because of its high strength,light weight,good percolation and good isolation.This article uses the nonlinear finite element software ABAQUS to simulate and analyze the settlement deformation and lateral displacement situation of highway subgrade with different widths before and after reinforcement.The simulation results show that:when the width of the subgrade is small,the reinforcement role of the geotextile can effectively reduce the vertical settlement of the subgrade and improve the stability;when the width of the subgrade is large,it has little effect on the settlement and lateral displacement.Therefore,whether the geotextile is used to reduce the vertical settlement of the structures should be determined according to the actual conditions of the project.This research results can provide a theoretical reference for engineering practice.

关 键 词：土工织物 有限元 沉降变形 侧向位移 公路路基 

分 类 号：U416.1[交通运输工程—道路与铁道工程]