| 过渡段路基在冻胀条件下变形数值模拟分析 |
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| 引用本文： | 王友平,康俊泰,安静.过渡段路基在冻胀条件下变形数值模拟分析[J].兰州工业高等专科学校学报,2014(3):21-23,43. |
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| 作者姓名： | 王友平 康俊泰 安静 |
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| 作者单位： | [1]兰州交通大学土木工程学院,甘肃兰州730070 [2]甘肃省交通规划勘察设计院,甘肃兰州730030 [3]甘肃林业职业技术学院,甘肃天水741020 |
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| 摘 要： | 以哈大线为依托,根据实测的断面数据,采用流变力学模型,利用有限元软件ANSYS对未经防冻胀处理的路基在冻胀条件下的沉降变形进行分析计算.结果表明:路基未经冻胀处理时,在ZK静载作用下,冻胀状态下路基顶面的最大竖向位移超过了客运专线对路基工后沉降的要求.为确保列车平稳、安全运行,必须采取一定的防冻胀处理措施.
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| 关 键 词： | 路基 冻胀 沉降 数值模拟 |
Numerical Simulation Analysis of Subgrade Deformation |
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| WANG You-ping,KANG Jun-tai,AN Jing.Numerical Simulation Analysis of Subgrade Deformation[J].Journal of Lanzhou Higher Polytechnical College,2014(3):21-23,43. |
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| Authors: | WANG You-ping KANG Jun-tai AN Jing |
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| Affiliation: | 1.College of Civil Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China ; 2. Transportation Planning Survey and Design Institute of Gansu Province, Lanzhou 730030, China; 3. Cansu Vocational College of Forestry, Tianshui 741020, China) |
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| Abstract: | Based on Haerbin-Dalian high speed railway , depending on the section data , adopting rheological model and using ANSYS , this paper carries out a number of computations on deformation of road base without measures against frozen expansion .The results show that without frozen expansion measures , the maximum vertical displacement of the subgrade ’ s surface surpasses the requirements of Passenger Special Line under condition of ZK static load .In order to ensure the safe operation of the trains , certain anti-freezing measures need to be taken. |
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| Keywords: | subgrade frozen expansion settlement numerical simulation |
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