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Transverse water passing roadbed structure

A horizontal drainage and subgrade technology, applied in infrastructure engineering, roads, roads, etc., can solve the problem that the subgrade section of the road cannot be flooded horizontally, and achieve the effect of preventing infiltration into the interior of the subgrade

Pending Publication Date: 2021-02-23
TIANJIN MUNICIPAL ENG DESIGN & RES INST +2
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  • Claims
  • Application Information

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Problems solved by technology

[0003] The invention aims to solve the technical problem that the roadbed section of the road cannot allow floods to pass through horizontally, and provides a horizontal water-passing roadbed structure, which can meet the needs of floods crossing the roadbed

Method used

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  • Transverse water passing roadbed structure

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Embodiment Construction

[0019] 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.

[0020] In this embodiment, a lateral water-passing subgrade structure is provided, figure 1 It is a structural schematic diagram of a transverse water subgrade structure according to an embodiment of the present invention, such as figure 1 As shown, the transverse water-passing subgrade structure includes a foundation 1 , a common subgrade base 2 , a crushed stone or gravel cushion 3 , a transverse drainage pipe 4 and an impermeable concrete slope protection layer 5 .

[0021] Below the design flood level, N layers of crushed stone or gravel cushions 3 are arranged at intervals between ordinary road bases 2, where N is a positive integer greater than or equal to 1. Each layer of crushed stone...

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Abstract

The invention belongs to the technical field of highway engineering, and discloses a transverse water passing roadbed structure which is characterized in that N gravel or gravel cushion layers are arranged between common roadbed layers at intervals below the designed flood level elevation, and a plurality of transverse drainage pipes are arranged in each gravel or gravel cushion layer; the transverse drainage pipes are arranged at intervals in the length direction of the roadbed structure and penetrate through the broken stone or gravel cushion layer in the width direction of the roadbed structure. Anti-permeability concrete slope protection layers are arranged on the outer sides of slopes of the common roadbed layer and the N gravel or gravel cushion layers below the designed flood levelelevation, and the two ends of the transverse drainage pipes penetrate through the anti-permeability concrete slope protection layers in a straight mode. The roadbed achieves the transverse water passing function through drainage of the transverse drainage pipes, the gravel or gravel cushion layers can protect the transverse drainage pipes in the roadbed, and the impermeable concrete slope protection layer protects the roadbed slope from being scoured by flood and prevents the flood from permeating into the roadbed.

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 view of the needs of optimizing road network layout and developing local economy, many high-grade highways are arranged in the flood storage and detention areas. In this way, when the rainstorm comes, the flood will scour the side slope of the subgrade; at the same time, when the subgrade of the highway in the flood detention area blocks the discharge of the flood, the subgrade of the highway cannot meet the needs of the flood to pass through. Contents of the invention [0003] The invention aims to solve the technical problem that the roadbed section cannot allow floods to pass through horizontally, and provides a horizontal water-passing roadbed structure, which can meet the needs of floods crossing the roadbed. [0004] In order to solve the above technical problems, the present invention is achie...

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张喜涛朱涛李宝刘大欢吕鹏纪永鹏杨凯谭学政
Owner TIANJIN MUNICIPAL ENG DESIGN & RES INST
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