Experimental study on concrete box culverts in trenches

doi:10.1007/s11709-009-0008-3

Frontiers of Architecture and Civil Engineering in China

2009, Vol. 3

Issue (1): 73-80 https://doi.org/10.1007/s11709-009-0008-3

RESEARCH ARTICLE

本期目录

Experimental study on concrete box culverts in trenches

Baoguo CHEN^1,2(

), Junjie ZHENG³, Jie HAN⁴

1. School of Civil Engineering and Mechanics, Huazhong University of Science and Technology, Wuhan 430074, China; 2. Engineering Faculty, China University of Geosciences, Wuhan 430074, China; 3. School of Civil Engineering and Mechanics, Huazhong University of Science and Technology, Wuhan 430074, China; 4. Civil,environmental,and Architectural Engineering Department, the University of Kansas, KS 66045, USA

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Abstract：

Concrete box culverts are widely used in expressways in mountain areas. Many problems frequently take place due to improperly estimated vertical earth pressures on culverts. The prevailing Chinese General Code for Design of Highway Bridges and Culverts (CGCDHBC) stipulates the computation of the design load on culverts primarily based on the linear earth pressure theory, which cannot accurately describe the variation of the vertical load on culverts in trenches. In this paper, a full-scale experiment and numerical simulation were conducted to evaluate the variation of vertical earth pressures on culvert and soil arching in backfill. The variations of foundation pressure and settlement were also analyzed. The result revealed that the soil arch forms when the backfill on the culvert reaches a certain height. The soil arching effect reduces the stress concentration on the crown of the culvert but it is unstable. The vertical earth pressure on top of the culvert is significantly different from that recommended by the CGCDHBC

Key words： culvert vertical earth pressure soil arch full-scale experiment numerical simulation

收稿日期: 2008-10-07 出版日期: 2009-03-05

Corresponding Author(s): CHEN Baoguo,Email:baoguo_chen@126.com

引用本文:

. Experimental study on concrete box culverts in trenches[J]. Frontiers of Architecture and Civil Engineering in China, 2009, 3(1): 73-80.
Baoguo CHEN, Junjie ZHENG, Jie HAN. Experimental study on concrete box culverts in trenches. Front Arch Civil Eng Chin, 2009, 3(1): 73-80.

链接本文:

https://academic.hep.com.cn/fsce/CN/10.1007/s11709-009-0008-3
https://academic.hep.com.cn/fsce/CN/Y2009/V3/I1/73

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