[1]李宁,张海凤,周川滨.高填路基分层填筑过程非线性有限元分析[J].高速铁路技术,2020,11(05):42-45,91.[doi:10.12098/j.issn.1674-8247.2020.05.008]
　LI Ning,ZHANG Haifeng,ZHOU Chuanbin.Nonlinear Finite Element Analysis of Layered Filling of High Subgrade[J].HIGH SPEED RAILWAY TECHNOLOGY,2020,11(05):42-45,91.[doi:10.12098/j.issn.1674-8247.2020.05.008]
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高填路基分层填筑过程非线性有限元分析()
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《高速铁路技术》[ISSN:1674-8247/CN:51-1730/U]

卷:
11卷
期数:
2020年05期
页码:
42-45,91
栏目:
出版日期:
2020-10-28

文章信息/Info

Title:
Nonlinear Finite Element Analysis of Layered Filling of High Subgrade
文章编号:
1674—8247(2020)05—0042-04
作者:
李宁;  张海凤;  周川滨
1. 中铁二院工程集团有限责任公司, 成都 610031;
2. 鲁南高速铁路有限公司, 济南 250101
Author(s):
LI Ning;  ZHANG Haifeng;  ZHOU Chuanbin
1. China Railway Eryuan Engineering Group Co., Ltd., Chengdu 610031, China;
2. Lunan High Speed Railway Co., Ltd., Jinan 250101, China
关键词:
高填方路基|邓肯-张(E-B)模型|分层填筑|非线性有限元
Keywords:
high subgrade|Duncan-Chang (E-B) model|layered filling|nonlinear finite element
分类号:
U416.1
DOI:
10.12098/j.issn.1674-8247.2020.05.008
文献标志码:
A
摘要:
本文提出了一种采用非线性有限元模拟高填方路基分层填筑施工过程的方法。首先，在数值模拟中，根据填料各向异性的特性，选取了邓肯-张（E-B）本构模型；其次，考虑土体的应力水平变化，计算了加载过程中应力路径对填料状态的影响；最后，根据分层施工的特点，对位移场进行了修正。该方法能真实反映施工过程中填筑体的应力、变形规律，可为进一步进行应力水平分析和沉降计算等提供依据，也为高填方路基工程的设计、施工提供了一种新思路。
Abstract:
In the paper, a nonlinear finite element method is proposed to simulate the construction of layered filling of high subgrade. Firstly, in numerical simulation, Duncan-Chang (E-B) constitutive model is selected according to the anisotropy of filler. Secondly, considering the change of stress level of soil, the influence of stress path on filler state during loading is calculated. Finally, according to the characteristics of layered construction, the displacement field is modified. The method can truly reflect the stress and deformation rules of the filler during the construction and provide a basis for further stress level analysis and settlement calculation, and also a new idea for the high subgrade design and construction

备注/Memo

备注/Memo:
作者简介:李宁(1984-),男,高级工程师。引文格式:李宁, 张海风, 周川滨. 高填路基分层填筑过程非线性有限元分析[J]. 高速铁路技术,2020,11(5):42-45,91.LI Ning,ZHANG Haifeng,ZHOU Chuanbin. Nonlinear Finite Element Analysis of Layered Filling of High Subgrade[J]. High Speed Railway Technology, 2020, 11(5):42-45,91.
更新日期/Last Update: 2020-10-28