Railway roadbed structure for reducing roadbed settlement deformation through opposite-pulling rib U-shaped groove

Abstract

The invention relates to a railway roadbed structure for reducing roadbed settlement deformation through an opposite-pulling rib U-shaped groove. The U-shaped reinforced concrete groove with an upwardnotch is formed in the bottom and filled with a roadbed stacking and filling material, the top of the roadbed stacking and filling material is flush with the top edge of the U-shaped reinforced concrete groove and provided with railway ballast, and a railway track structure is arranged above the railway ballast; and opposite-pulling ribs are transversely arranged in the U-shaped reinforced concrete groove, and the two ends of each opposite-pulling rib extend out of the U-shaped reinforced concrete groove. On the one hand, lateral deformation of a roadbed body is greatly restrained through theU-shaped opposite-pulling reinforced concrete groove, roadbed body stuffing is stacked and filled or concrete is poured within the limited space with lateral confinement, and roadbed body settlementis controlled to a great degree; and on the other hand, the occupied width of the bottom of a roadbed is greatly reduced, and plenty of requisition land and plenty of foundation treatment area are saved.

Description

technical field [0001] The invention belongs to the technical field of railway engineering, and in particular relates to a railway roadbed structure for reducing the subsidence deformation of the roadbed for U-shaped grooves of tension bars. Background technique [0002] At present, most railway subgrades are filled with bulk materials according to a certain degree of density and a stable slope ratio, supplemented by ballast slope protection. Due to the limited compaction of bulk materials and the current level of construction technology, large settlements will often occur in the subgrade body, and the side slope of the subgrade (especially at the edge) will slump or subside. Sometimes when the foundation treatment is uneven, The uneven settlement and weight of the railway subgrade strictly limits the application range of the railway subgrade form in high-grade railways. Contents of the invention [0003] The purpose of the present invention is to provide a railway subgra...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a railway subgrade structure that reduces the subsidence and deformation of the subgrade with the U-groove of the tension bar, which overcomes the problems of large subsidence (uniform subsidence and uneven subsidence) of the basic body of the existing railway road, large area occupation and foundation treatment costs. A large proportion of defects

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