[1]张浩,杨玲,郭院成.交通荷载作用下低填道路软土地基的动力响应分析[J].郑州大学学报(工学版),2017,38(01):11.[doi:10.13705/j.issn.1671-6833.2016.04.027]
　Zhang Hao,Yang Ling,Guo Yuancheng.Analysis on Dynamic Response of Soft Soil Foundation Beneath Low Embankment Under Traffic Load[J].Journal of Zhengzhou University (Engineering Science),2017,38(01):11.[doi:10.13705/j.issn.1671-6833.2016.04.027]
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交通荷载作用下低填道路软土地基的动力响应分析()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
38
期数:
2017年01期
页码:
11
栏目:
出版日期:
2017-02-24

文章信息/Info

Title:
Analysis on Dynamic Response of Soft Soil Foundation Beneath Low Embankment Under Traffic Load
作者:
张浩; 杨玲; 郭院成
1.郑州大学土木工程学院,河南郑州,450001;2.郑州市市政设施维修建设有限公司,河南郑州,450000
Author(s):
Zhang Hao1; Yang Ling2; Guo Yuancheng1
1. School of Civil Engineering, Zhengzhou University, Zhengzhou, Henan, 450001;2. Zhengzhou Municipal Facilities Maintenance and Construction Co., Ltd., Zhengzhou, Henan, 450000
关键词:
Keywords:
DOI:
10.13705/j.issn.1671-6833.2016.04.027
文献标志码:
A
摘要:
为了揭示交通荷载对低填道路下卧软土地基的动力影响规律,对软土地基的动孔隙水压力进行了现场测试,分析了不同上部路堤厚度和行车速度工况下地基孔隙水压力的分布规律,并据此借助数值模拟对长期交通荷载作用下软土地基的附加沉降进行计算分析.结果表明:上部路堤结构对交通荷载的动力激励具有消减作用,填筑厚度越小,下卧软土地基的动力响应越明显,且随着深度的增加动孔隙水压力呈衰减趋势,长期交通荷载作用下软土地基的附加沉降呈近似指数型非线性增长.
Abstract:
In order to reveal the dynamic response rules of soft soil foundation beneath low embankment under traffic load,the in-situ tests for the dynamic pore water pressure in soft soil stratum were conducted.The distribution laws of pore water pressure under different embankment thickness and different running speed were analyzed.In addition,the additional settlement of soft soil stratum under long-term traffic load was analyzed by numerical simulation.The results showed that embankment fills could reduce the dynamic effect of traffic load.The dynamic response of underling soft soil foundation increased with the decrease of the embankment thickness,and the dynamic pore water pressure declined with the depth increases.Moreover,the long-term addition settlement of soft soil foundation could be expressed as exponential function of time under traffic load.

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