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The State Investigation and the Maintenance Analysis of Culverts in the Permafrost Regions

Author: CuiGuangYi
Tutor: YuanXiZhong
School: Chang'an University
Course: Road and Railway Engineering
Keywords: culvert temperature field corrosion heave reinforcement
CLC: U449.7
Type: Master's thesis
Year: 2013
Downloads: 13
Quote: 0
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Abstract


Culvert is indispensable structures in road projects. the state investigation and themaintenance analysis of culverts are important decision of road maintenance in the permafrostregions. many years later, corrugated pipe culverts can adapt to the needs of the environment,therefore studying the mechanical properties of the corrugated metal culvert have importantguiding significance and application value.Through the survey to some sections of culverts of G214and take the data analysis as thebasis, analysis the culvert diseases ratios, obtained common diseases of culverts, as well as themajor disease of prone sections, focus the anti-frost problem In the new roads, and point outthat prevent the Corrosion besides frost heaving in the large flow area.According to the temperature and radiation, etc and considering thermal conductivity,heat capacity and latent heat and other factors of soil、concrete slab culvert and corrugatedsteel culvert, Using ABAQUS finite element program to simulate temperature field ofconcrete slab culvert and corrugated culvert in permafrost regions, describes the naturalfoundation evenly moderate average ground temperature at the bottom of culvert and thechanges of culverts permafrost, point out the temperature distribution at the bottom of culvert.Using ABAQUS finite element program to simulate the mechanical characteristics underthe amount of fill height corrosion and fill height for corrugated steel culvert, By analyzingthe vertical variation of stress and displacement for the corrugated steel culvert afterreinforcement and analysis the distribution of stress after frost under different thickness andcross-sectional condition, point out the reasonable reinforcement thickness and the reasonablelongitudinal Deformation for corrugated steel culvert

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CLC: > Transportation > Road transport > Bridges and Culverts > Culvert > Maintenance and repair,treatment of defects in
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