A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Permafrost fill construction method
Disclosed is a permafrost fill construction method. The permafrost fill construction method comprises the specific construction steps of construction preparation, operation of staking out in survey, site cleaning, flattening and compaction, embankment filling, layered filling of water-permeable materials, rolling compaction, partially-frozen subgrade construction and fully-frozen subgrade construction. Self-inspection is timely conducted after each working procedure is accomplished, inspection reporting is conducted after the self-inspection result is qualified, and construction of the next working procedure can be conducted only after supervision engineers test the corresponding construction result and determines that the construction result is qualified. According to the invention, by the adoption of the combination between the formation reasons of the subgrade frost heaving phenomenon in permafrost regions and existing construction experience in the permafrost regions, the paths of permeation of surface water and ascent of capillary water are cut off, and therefore the groundwater level is lowered, the initial water content of a subgrade filling is reduced, and is kept to about the optimum water content, the water supply source in the ice gathering process is cut off, then the subgrade frost heaving phenomenon caused by filling materials and unreasonable technologies in the construction process is effectively prevented, and the quality of a road which is opened to traffic is guaranteed.
Permafrost fill construction method
Disclosed is a permafrost fill construction method. The permafrost fill construction method comprises the specific construction steps of construction preparation, operation of staking out in survey, site cleaning, flattening and compaction, embankment filling, layered filling of water-permeable materials, rolling compaction, partially-frozen subgrade construction and fully-frozen subgrade construction. Self-inspection is timely conducted after each working procedure is accomplished, inspection reporting is conducted after the self-inspection result is qualified, and construction of the next working procedure can be conducted only after supervision engineers test the corresponding construction result and determines that the construction result is qualified. According to the invention, by the adoption of the combination between the formation reasons of the subgrade frost heaving phenomenon in permafrost regions and existing construction experience in the permafrost regions, the paths of permeation of surface water and ascent of capillary water are cut off, and therefore the groundwater level is lowered, the initial water content of a subgrade filling is reduced, and is kept to about the optimum water content, the water supply source in the ice gathering process is cut off, then the subgrade frost heaving phenomenon caused by filling materials and unreasonable technologies in the construction process is effectively prevented, and the quality of a road which is opened to traffic is guaranteed.
Permafrost fill construction method
FANG JIANHONG (author) / NA QICAI (author) / XU ANHUA (author) / HE CHANG (author) / ZHANG HUFA (author) / LIU LEI (author) / ZHANG JUN (author) / CHEN HONGWEI (author) / REN LUOYING (author) / CHEN XIAOKUN (author)
2016-02-03
Patent
Electronic Resource
English
IPC:
E01C
Bau von Straßen, Sportplätzen oder dgl., Decken dafür
,
CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE
Fill subgrade construction method suitable for water-rich low-lying permafrost region
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Building on fill in region of deep permafrost
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