Roadbed slope protection device and railroad bed

A protective device and slope protection technology, applied in roads, infrastructure engineering, excavation, etc., can solve the problems of damaging the stability of roadbed structures and affecting the safety of trains, reducing maintenance workload and costs, and improving construction efficiency , the effect of preventing frost heave

Pending Publication Date: 2020-05-08
CHINA RAILWAY FIFTH SURVEY & DESIGN INST GRP
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  • Abstract
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Problems solved by technology

[0003] However, in areas with low temperature, frost heave will occur in the soil layer in a long-term low temperature environment, and its volume will increase and expand outw

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  • Roadbed slope protection device and railroad bed
  • Roadbed slope protection device and railroad bed
  • Roadbed slope protection device and railroad bed

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[0018] In order to make the technical solutions and advantages of the embodiments of the present application more clear, the exemplary embodiments of the present application will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, and Not all embodiments are exhaustive. It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other in the case of no conflict.

[0019] This embodiment provides a roadbed side slope protection device, which can be applied to both highway roadbed protection in cold regions and railway subgrade protection in cold regions. The protective device has good thermal insulation effect, is suitable for areas with low temperature, and can avoid frost heave phenomenon caused by freezing of subgrade soil layer.

[0020] figure 1 This is a cross-sectional view...

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Abstract

The embodiment of the invention provides a roadbed slope protection device and a railroad bed, and the roadbed slope protection device comprises: a plurality of foam concrete precast blocks which areused for being assembled and laid along the surface of a roadbed slope and are fixed on the roadbed slope; and drainage structures which are arranged on the foam concrete precast blocks and used for enabling water on the surface of the roadbed to be drained to the two sides of the roadbed through the drainage structures. The roadbed slope protection device and the railroad bed provided by the embodiment of the invention can protect the railroad bed in a cold region, can prevent the railroad bed from collapsing due to rain wash, and also can preserve heat of the railroad bed to prevent frost heaving of the railroad bed.

Description

technical field [0001] The application relates to roadbed slope protection technology, in particular to a roadbed slope protection device and a railway roadbed. Background technique [0002] The stability of the railway subgrade directly affects the running safety of the train. The railway subgrade is usually composed of soil, gravel and other fillers to form a trapezoidal cross-section. The slopes on both sides of the railway subgrade are called side slopes. In order to prevent the impact of gravel rolling, soil loosening and falling, and rain erosion, it is necessary to protect the slope. For example, plants are planted on the slope, and the soil is fixed and stabilized by plant roots; stones can also be laid on the slope. Blocks are used to compact the soil and prevent the slope subgrade filler from rolling down; concrete grids can also be set to compact the soil and prevent it from loosening. The three commonly used methods above can all protect the subgrade soil and pr...

Claims

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Application Information

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IPC IPC(8): E01B2/00E02D17/20
CPCE01B2/00E02D17/20
Inventor 刘晓贺肖金凤邢亮张守超
Owner CHINA RAILWAY FIFTH SURVEY & DESIGN INST GRP
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