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A platform for research: civil engineering, architecture and urbanism
Permafrost region roadbed thermal insulation construction method
The invention discloses a permafrost region roadbed thermal insulation construction method. The method comprises the following steps: firstly, excavation and replacement construction is carried out; secondly, a block crushed rock layer is filled; thirdly, joint filling cement is cast on the block crushed rock layer, then an aluminum foil layer, a thermal resistant cold conduction layer and an geotechnical cloth layer are paved in order, and then a fiber concrete layer is cast; fourthly, a compacted embankment filling soil is filled finally. In the construction method, a thermal insulation layer is arranged in the permafrost road segment, disturbance to the permafrost layer can be controlled effectively, the performances of the permafrost layer are kept stable, therefore the whole stability of the roadbed is raised, and the permafrost road segment roadbed is prevented from diseases of subsidence, frost heave, pavement cracking, collapse and the like. Under the same conditions, the replacement thickness can be reduced, the construction cost is saved and the construction period is shortened.
Permafrost region roadbed thermal insulation construction method
The invention discloses a permafrost region roadbed thermal insulation construction method. The method comprises the following steps: firstly, excavation and replacement construction is carried out; secondly, a block crushed rock layer is filled; thirdly, joint filling cement is cast on the block crushed rock layer, then an aluminum foil layer, a thermal resistant cold conduction layer and an geotechnical cloth layer are paved in order, and then a fiber concrete layer is cast; fourthly, a compacted embankment filling soil is filled finally. In the construction method, a thermal insulation layer is arranged in the permafrost road segment, disturbance to the permafrost layer can be controlled effectively, the performances of the permafrost layer are kept stable, therefore the whole stability of the roadbed is raised, and the permafrost road segment roadbed is prevented from diseases of subsidence, frost heave, pavement cracking, collapse and the like. Under the same conditions, the replacement thickness can be reduced, the construction cost is saved and the construction period is shortened.
Permafrost region roadbed thermal insulation construction method
MA TAO (author) / HUANG XIAOMING (author) / ZHAO YONGLI (author) / TANG TAO (author) / WANG HAINIAN (author)
2016-01-20
Patent
Electronic Resource
English
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