[1] Chen Baoguo, Zheng Junjie, Lu Yaner, et al. Soil-structure interaction of unsymmetrical trench installation culvert [J]. Journal of Southeast University (English Edition), 2009, 25 (1): 94-98. [doi:10.3969/j.issn.1003-7985.2009.01.020]

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Soil-structure interaction of unsymmetrical trench installation culvert()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

25

Issue:

2009 1

Page:

94-98

Research Field:

Traffic and Transportation Engineering

Publishing date:

2009-03-30

Info

Title:

Soil-structure interaction of unsymmetrical trench installation culvert

Author(s):

Chen Baoguo¹;  2;  Zheng Junjie¹;  Lu Yan’er¹

¹School of Civil Engineering and Mechanics, Huazhong University of Science and Technology, Wuhan 430074, China
² Engineering Faculty, China University of Geosciences, Wuhan 430074, China

Keywords:

soil-structure interaction;  soil arching effect;  eccentric load effect;  full scale experiment;  numerical simulation

PACS:

U449

DOI:

10.3969/j.issn.1003-7985.2009.01.020

Abstract:

The computation of the design load on culverts in the current Chinese General Code for Design of Highway Bridges and Culverts(CGCDHBC)is primarily based on the linear earth pressure theory, which cannot accurately reflect the changes in vertical loads on trench installation culverts.So the changes in vertical earth pressure and soil arching effect in the backfill for an unsymmetrical trench installation culvert are studied based on a full scale experiment and finite element(FE)simulation.The variation laws of foundation pressure and settlement are also analyzed.Meanwhile, the influence of eccentric load induced by an unsymmetrical trench installation on the interaction of a soil-structure system is discussed.Results show that soil arch is formed when the backfill on the culvert reaches a certain height.It can relieve the earth pressure concentration on the crest of the culvert, but it is instable.The earth pressures obtained by full scale experiment and numerical simulation are greater than those calculated by the current CGCDHBC method.The eccentric load effect on the culvert has a significant influence on the stress states and deformation of the soil-structure system.

References:

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[2] Kang Zuo, Xie Yongli, Feng Zhongju, et al.Studies on distress mechanism of culverts by centrifugal model test[J].Chinese Journal of Geotechnical Engineering, 2006, 28(6):784-788.(in Chinese)
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[11] Yang Xiwu, Zhang Yongxing.Study on arch action and earth pressure theory for culverts under high embankment[J].Chinese Journal of Rock Mechanics and Engineering, 2005, 24(21):3887-3893.(in Chinese)
[12] Deng Guohua, Shao Shengjun.FEM analysis on earth pressure of embedded culvert in subgrade or dike[J].Chinese Journal of Rock Mechanics and Engineering, 2004, 23(Sup 1):4356-4360.(in Chinese)
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Memo

Memo:

Biography: Chen Baoguo(1981—), male, doctor, lecturer, baoguo_-chen@126.com.
Foundation item: Key Plan of Science and Technology of Hubei Provincial Communication Department(No.2005-361).
Citation: Chen Baoguo, Zheng Junjie, Lu Yan’er.Soil-structure interaction of unsymmetrical trench installation culvert[J].Journal of Southeast University(English Edition), 2009, 25(1):94-98.

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