拓宽路基工程数值分析中模型选择的研究  

Numerical Analysis Model Comparison and Selection about Widened Embankment Engineering

作　　者：陆钊 石海丽 陈锐[3] 左人宇 

机构地区：[1]深圳市工勘岩土工程有限公司,广东深圳518026 [2]深圳高速工程顾问有限公司,广东深圳518034 [3]哈尔滨工业大学深圳研究生院深圳市城市与土木工程防灾减灾重点实验室,广东深圳518055

出　　处：《路基工程》2014年第3期22-26,共5页Subgrade Engineering

基　　金：深圳市科技研发资金项目(CXZZ20120829154820942);深圳市龙岗区软科学研究项目(深龙科[2011]3);中国水利水电科学研究院科研项目(岩集1238)

摘　　要：拓宽路基工程的沉降机理数值分析是个重要的手段。运用ABAQUS有限元软件对路基拓宽工程从施工到工后运营进行数值模拟,比较了网格划分的疏密与尺寸大小,计算精度的差异;并以离心机的研究结果作为参考与本数值模型进行对比分析,从沉降与孔压变化的方面,验证了所选择的数值分析模型的合理性,为类似工程提供参考。Numerical simulation is an important method to study settlement mechanism in widening woks of subgrade. With the finite element software ABAQUS, the widening works from construction to post- construction operation was studied by numerical simulation with the differences between the mesh spacing, size and calculating accuracy compared; then, by reference to the study result from centrifuge, comparative analysis was conducted so that, from the changes of the settlement and pore pressure, the rationality of the numerical simulation model selected was verified, which could be referred by similar engineering.

关 键 词：拓宽路基 网格划分 沉降 孔压 数值模拟 离心机 

分 类 号：U416.1[交通运输工程—道路与铁道工程]