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Bottom water-permeable soaking-resistant roadbed structure

A technology of subgrade and permeable concrete, which is applied in the direction of infrastructure engineering, roads, roads, etc., can solve the problems of reduced bearing capacity of subgrades and inability to solve floods, and achieve the effect of reducing looseness and slipping and ensuring stability

Pending Publication Date: 2021-01-12
TIANJIN MUNICIPAL ENG DESIGN & RES INST +2
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Problems solved by technology

[0003] At present, the flood protection of highway subgrades is mainly to prevent floods from scouring and penetrating into the subgrade through the way of mortar rubble slope protection. It is difficult to avoid the problem that the subgrade bearing capacity is reduced due to flood infiltration into the subgrade, and it is also impossible to solve the problem that the flood needs to cross road bed problems

Method used

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  • Bottom water-permeable soaking-resistant roadbed structure

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Embodiment Construction

[0024] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0025] In this embodiment, a bottom permeable and immersion-resistant subgrade structure is provided, figure 1 It is a structural schematic diagram of a bottom permeable and soaking-resistant subgrade structure according to an embodiment of the present invention, such as figure 1 As shown, the bottom permeable and immersion-resistant subgrade structure includes a foundation 1, barbed wire 2, a gravel permeable road base 3, a permeable concrete slope protection layer 5 and an ordinary road base 6.

[0026] The gravel permeable road base 3 is provided with N layers, where N is a positive integer greater than or equal to 1.

[0027] The first layer of barbed wire 2 is laid on the foundation 1, a...

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Abstract

The invention belongs to the technical field of highway engineering, and discloses a bottom water-permeable soaking-resistant roadbed structure. N gravel water-permeable roadbed layers and a water-permeable concrete side slope protection layer are arranged between a foundation and a common roadbed layer, and the water-permeable concrete side slope protection layer is arranged on the outer side ofa slope of the N gravel water-permeable roadbed layers; an iron wire net is arranged below each gravel water-permeable roadbed layer, and after the gravel water-permeable roadbed layers are rolled andformed, the iron wire nets arranged below the gravel water-permeable roadbed layers wrap the gravel water-permeable roadbed layers in a bent mode and are fixed to the gravel permeable roadbed layersthrough a plurality of fixing components. According to the method, the bottom of the roadbed has a soaking-resistant function, and the water permeation requirement that flood transversely penetrates through the roadbed can be met; the gravel water-permeable roadbed layer is high in stability, and the water-permeable concrete side slope protection layer can protect the roadbed side slope from beingscoured by the flood and can facilitate flood passing.

Description

technical field [0001] The invention belongs to the technical field of highway engineering, and in particular relates to a roadbed structure. Background technique [0002] In recent years, my country's highway construction business has developed rapidly, and the current mileage in traffic ranks first in the world. A reasonable road network layout of high-grade highways is very important for the formation and improvement of the road transportation network system, and many high-grade highways have to be built in flood storage and detention areas due to the needs of local economic development and planning layout. Not only the flood will scour the side slope of the roadbed, but also the filling material of the roadbed will soften as the flood soaks, thereby reducing the bearing capacity and stability of the roadbed. Therefore, there will be a large number of water damage problems on the roadbed in the flood storage and detention area every year, and huge maintenance and repair ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C3/06E02D17/20
CPCE01C3/06E02D17/20E02D2300/002Y02A30/60
Inventor 肖田戴放军朱士良孙吉书徐桂兴张俊峰南志张炜萍王晶张龙明李清华叶林熙朱涛高远熊文胜李宝高恒楠刘大欢曹凌峰孙超
Owner TIANJIN MUNICIPAL ENG DESIGN & RES INST
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