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Calculation of Geogrid Reinforced for Alleviating Bump at Bridge Approach
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[1]SHEN Junmin,ZHANG Jun,ZHA0 Jianbin,et al.Calculation of Geogrid Reinforced for Alleviating Bump at Bridge Approach[J].Journal of Zhengzhou University (Engineering Science),2014,35(02):28-31.[doi:10.3969/j.issn.1671-6833.2014.02.007]
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Journal of Zhengzhou University (Engineering Science)[ISSN 1671-6833/CN 41-1339/T] Volume: 35 Number of periods: 2014 02 Page number: 28-31 Column: Public date: 2014-04-30
Title:
Calculation of Geogrid Reinforced for Alleviating Bump at Bridge Approach
Author(s):
SHEN Junmin; ZHANG Jun; ZHA0 Jianbin;  etc;
1. Key laboratory of Highway Construction and Maintenanee Techmique in Loess Area, Shanxi Provincial Research lnstitute olCommunieations, "Taiyuan 030006, China; 2. School of Civil Engineering and Arhitecture, Hubei University of Technology,Wuhan 430068.China
Keywords:
bridge-head bump;  geogrid;  reinforeed embankment;  analytical method;  numerieal simulation
CLC:
-
DOI:
10.3969/j.issn.1671-6833.2014.02.007
Abstract:
The mechanism of the reinforeed bridge approach embankment with geogrid is firslly introdueed.Aecorling to the requirements of vertieal aeeeleration that human body travels with, the settlement require.ments of bridge approach are diseussed and the transition seetion length of reinforeed embankment for eomfortable driving is detemmined. The are assumplion is made to deseribe the settement curves and the Coulomb frie.tion is used to model the interlace characteristie between geogrid and soil. The stress of geogrid reinforeing theembankment is studied at last, the analytical expression to caleulate the axial tension forees of the geogrid isobtained, and it is veriied by the numerical simulation and practieal projeet.
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