Numerical Simulation on Settlements of Changan Comprehensive
Test Track with High Fill Embankment

doi:10.3969 /j.issn.1674-0696.2012.02.20

Abstract

Abstract: By contrast with the highway，the characteristics of construction of test track are of high technology standards， complex project management and construction technology． Meanwhile，the design and construction of test track don’t have ready criteria and rules in China． The high-speed circuits and the standard ramp sections of high fill embankment for Chang’an comprehensive test track are analyzed with numerical simulation，the settlement deformation law of high fill embankment can be obtained，and the settlement deformation of the sections which is replaced with limestone soil are analyzed． The research shows that the strength and the stability of the high fill embankment are improved and the settlement deformation and the different settlement of the surface are decreased when the high fill subgrade is replaced by limestone soil．

Key words: highway engineering, high fill embankment, numerical simulation

摘要： 相对于高速公路而言，汽车试车场的建设具有技术标准高、施工难度大、项目管理及施工工艺复杂等特点，而且在我国它的设计和施工没有现成的标准和规范。通过对长安综合试车场( 垫江) 高填方路堤试验路段的高速环道断面和标准坡道断面进行数值模拟分析，得到了试车场典型断面高填方的沉降变形规律，分析了黏土路基经过石灰土换填后典型断面路堤的沉降变形情况。研究表明: 石灰土对高填方路堤的沉降变形和稳定性有着很好的改良作用，有效的提高了路堤的强度和稳定性，减小了路堤的沉降变形以及表面沉降差。

关键词: 公路工程, 高填方路堤, 数值模拟

CLC Number:

U416.1 + 2

Sun Xiao，Zhao Mingjie，Wang Kui，Xiang Jianming. Numerical Simulation on Settlements of Changan Comprehensive Test Track with High Fill Embankment[J]. Journal of Chongqing Jiaotong University(Natural Science), 2012, 31(2): 257-260.

孙笑，赵明阶，汪魁，项建明. 长安综合试车场高填方路堤施工沉降控制数值模拟[J]. 重庆交通大学学报（自然科学版）, 2012, 31(2): 257-260.

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Numerical Simulation on Settlements of Changan Comprehensive Test Track with High Fill Embankment

长安综合试车场高填方路堤施工沉降控制数值模拟

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