›› 2010, Vol. 31 ›› Issue (S1): 424-429.

• Numerical Analysis • Previous Articles     Next Articles

Mechanism analysis and numerical simulation on load reduction for culvert beneath high filling

MA Qiang, ZHENG Jun-jie, ZHANG Jun, ZHAO Dong-an   

  1. College of Civil Engineering and Mechanics, Huazhong University of Science and Technology, Wuhan 430074, China
  • Received:2010-04-23 Online:2010-08-10 Published:2010-09-09

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Abstract:

High filling often causes proof earth pressure concentration which leads to proof cracking, in order to obtain measures to reduce the proof earth pressure on the top of culvert, the mechanism of culvert-filling-foundation working together is studied. The earth pressure concentration factors of the culvert influencing by the effects of loose mid and real side, flexible filling, fill in after excavation, as well as the foundation treatment measures are analyzed by numerical simulation. It is shown that the measures can effectively reduce the pressure at the culvert roof, the slope of excavation should be vertical and the width of excavation should be equal to the culvert width during digging after filling. Ground treatment measures of culvert should be flexible and extend to a certain width outside the basement. The results can provide references for high-fill culvert pressure reduction and foundation design.

Key words: high-fill culvert, earth pressure at culvert roof, load reduction, numerical simulation

CLC Number: 

  • U 416.1
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