CN216838968U

CN216838968U - Bridge deck structure of permeating water

Info

Publication number: CN216838968U
Application number: CN202220525258.3U
Authority: CN
Inventors: 周艳莉; 王涛; 侯爱平; 宋佳芮; 赖昌昊
Original assignee: Southwest Municipal Engineering Design and Research Institute of China
Current assignee: Southwest Municipal Engineering Design and Research Institute of China
Priority date: 2022-03-10
Filing date: 2022-03-10
Publication date: 2022-06-28
Anticipated expiration: 2032-03-10

Abstract

The utility model relates to the technical field of bridge engineering, in particular to a bridge deck water permeable structure, which comprises a concrete layer arranged on the bridge deck, a water permeable surface layer arranged on the concrete layer and a water permeable assembly arranged between the concrete layer and the water permeable surface layer in a plurality of groups, wherein the end of the water permeable assembly extends out of a bridge body baffle for drainage; the utility model discloses a set up the subassembly that permeates water, through the effectual realization drainage of subassembly that permeates water, avoid the rainwater to be detained for a long time; the utility model can effectively avoid the alkali return of the permeable surface layer by quickly discharging the rainwater, and simultaneously avoid the permeable surface layer from falling off due to long-time soaking, and can also ensure that the bridge cannot be corroded by the rainwater; avoid expend with heat and contract with cold to destroy the permeable pavement surface course and stabilize.

Description

Bridge deck structure of permeating water

Technical Field

The utility model relates to a bridge engineering technical field, more specifically say, relate to a bridge floor structure of permeating water.

Background

In municipal and garden landscape engineering, there are many steel structure pedestrian landscape bridges or overpasses, and in order to unify the paving effect of the roads connected with the two ends, the bridge surface course is often paved by water permeation. However, in rainy days, the lower bridge structure cannot permeate water and drain water quickly, so that rainwater exists in permeable pavement for a long time, and bad influence is generated on bridge deck pavement materials, pavement structures and the lower bridge structure.

In the prior art, no treatment is carried out on the bridge deck, so that a large amount of stagnant water in a permeable pavement structure of a bridge in rainy days cannot be quickly discharged; meanwhile, due to the long-term retention of rainwater, the following problems are caused:

1. the alkali return on the surface of the bridge is caused, and the appearance of the bridge deck is seriously influenced;

2. the mounting and connecting parts of the paving structure are not well combined, so that the permeable paving material falls off;

3. the rainwater is retained to cause thermal expansion and cold contraction, and the structure stability of the permeable paving surface is damaged;

4. carry out the corrosion to steel structure bridge, influence structure safety.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a bridge floor structure of permeating water is provided, can effectual rainwater be detained, can discharge the rainwater fast.

The utility model provides a solution that technical problem adopted is:

a bridge deck water permeable structure comprises a concrete layer arranged on a bridge deck, a water permeable surface layer arranged on the concrete layer, and a plurality of groups of water permeable assemblies arranged between the concrete layer and the water permeable surface layer;

the subassembly that permeates water is including mating formation drain pipe spare layer on concrete layer and be located the drainage pipe spare layer and the drainage material layer of permeating water between the surface course.

In some possible embodiments, the drainage pipe layer comprises a plurality of drainage pipes installed on the concrete layer, and a water-permeable geotextile sleeved outside the drainage pipes; and a plurality of drain holes are formed in one side of the drain pipe close to the water filtering material layer.

In some possible embodiments, the two drainage pipes are arranged in parallel, and the distance between the two drainage pipes is 20 mm.

In some possible embodiments, the hole diameter of the drainage hole is 5mm, and the drainage hole is arranged in a plum blossom shape.

In some possible embodiments, the concrete layer is provided with a groove for installing a drain pipe, and one side of the drain pipe close to the water filtering material layer extends into the water filtering material layer.

In some possible embodiments, the concrete layer is made of C30 reinforced concrete.

In some possible embodiments, the drainage material layer is prepared by using crushed stone or coarse sand, and the particle size of the drainage material layer is 6-8 mm.

In some possible embodiments, a galvanized steel wire mesh is provided between the drainage material layer and the water permeable facing.

In some possible embodiments, the galvanized steel wire mesh layer has a U-shaped cross section, and an opening of the U-shaped cross section is arranged on one side close to the water filtering material layer; the water filtering material layer and the drainage pipe fitting layer are positioned in the U-shaped structure.

In some possible embodiments, the galvanized steel wire mesh is fixedly connected with the concrete layer at the opening end.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a set up the subassembly that permeates water, through the effectual realization drainage of the subassembly that permeates water, avoid the rainwater to be detained for a long time;

in the utility model, rainwater enters the water filtering material layer through the permeable surface layer, impurities caused by rainwater flow are cleaned, then the rainwater enters the drainage pipe through the permeable geotextile and the drainage hole and is discharged through the drainage pipe, and the permeable geotextile effectively blocks soil caused by rainwater flow, so that the rainwater is prevented from entering the drainage pipe and blocking the drainage pipe;

the utility model can discharge rainwater quickly, return alkali to the permeable surface layer effectively, avoid the permeable surface layer from dropping due to long-time soaking, and ensure that the bridge is not corroded by rainwater; the water permeable pavement surface layer stability is prevented from being damaged by expansion with heat and contraction with cold;

the utility model discloses simple structure, practicality are strong.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the middle water permeable assembly of the present invention;

FIG. 3 is a schematic plan view of the present invention;

wherein: 1. a concrete layer; 2. a water permeable assembly; 21. a drain pipe; 211. a drain hole; 22. water-permeable geotextile; 23. a drainage material layer; 24. galvanized steel wire mesh; 3. a water permeable facing; 10. and (5) bridge deck.

Detailed Description

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. Reference herein to "first," "second," and similar words, does not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. In the implementation of the present application, "and/or" describes an association relationship of associated objects, which means that there may be three relationships, for example, a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In the description of the embodiments of the present application, the meaning of "a plurality" means two or more unless otherwise specified. For example, the plurality of positioning posts refers to two or more positioning posts. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The present invention will be described in detail below.

As shown in fig. 1, 2, and 3:

a bridge deck water permeable structure comprises a concrete layer 1 arranged on a bridge deck 10, a water permeable surface layer 3 arranged on the concrete layer 1, and a plurality of groups of water permeable components 2 arranged between the concrete layer 1 and the water permeable surface layer 3;

the water permeable component 2 comprises a drain pipe 21 piece layer paved on the concrete layer 1 and a water filtering material layer 23 positioned between the drain pipe 21 piece layer and the water permeable surface layer 3.

The method comprises the following steps that a concrete layer 1 is poured on a bridge deck 10 of a bridge to install a water permeable component 2, when the water permeable component 2 is installed, firstly, a drain pipe 21 is installed on the concrete layer 1, and then a water filtering material layer 23 is installed on the drain pipe 21;

by adopting the structure, the rainwater enters the water filtering material layer 23 after passing through the water permeable surface layer 3, enters the 21 drainage pipe layers after being filtered by the water filtering material layer 23, and is discharged through the 21 drainage pipe layers; compared with the prior art, the rainwater cannot be retained in the bridge for a long time and can be quickly discharged;

in some possible embodiments, in order to effectively realize that the filtered rainwater filtered by the water filtering material layer 23 is drained through the drainage pipe 21;

the drainage pipe 21 layer comprises a plurality of drainage pipes 21 arranged on the concrete layer 1 and a permeable geotextile 22 sleeved outside the drainage pipes 21; the drain pipe 21 is provided with a plurality of drain holes 211 on one side close to the drainage material layer 23.

Specifically, the geotextile 22 that permeates water sets up in the one side of wash port 211, and the effectual earth of avoiding rainwater to flow and bring enters into drain pipe 21 in, causes drain pipe 21 to block up.

In some possible embodiments, in order to achieve as rapid a drainage as possible;

the drain pipes 21 are arranged in parallel, and the distance between the two drain pipes 21 is 20 mm.

Specifically, a plurality of rain drops can be adopted and are mainly set according to the rainfall amount of the area.

In some possible embodiments, the hole diameter of the drainage hole 211 is 5mm, and the drainage hole is arranged in a quincunx shape.

5 mm's wash port 211 is plum blossom form and arranges, has guaranteed that the rainwater can enter into in the drain pipe 21.

In some possible embodiments, in order to effectively achieve the fixing of the drain pipe 21;

the concrete layer 1 is provided with a groove for installing the drain pipe 21, and one side of the drain pipe 21 close to the water filtering material layer 23 extends into the water filtering material layer 23.

In the utility model, the drain pipe 21 can be a square pipe or a round pipe; stainless steel pipes, polymer plastic pipes, hot-dip galvanized pipes and the like.

Specifically, when the drain pipe 21 is a circular pipe, the cross section of the groove is in an arc structure, and when the diameter of the drain pipe 21 is 30mm, the width of the groove is 35mm, and the depth of the groove is 20 mm; thus, the drain pipe 21 can be secured and can be inserted into the drainage material layer 23, so that rainwater on the drainage material layer 23 can enter the drain pipe 21 through the drain hole 211, flow in the axial direction of the drain pipe 21, and be discharged.

In some possible embodiments, for effective fixing of the water permeable module 2;

when the bridge is an arch bridge, the concrete layer 1 is made of C30 reinforced concrete. The thickness is 80-100 mm.

In some possible embodiments, the layer of draining material 23 is mainly used for the filtration of rainwater,

the water filtering material layer 23 is prepared from broken stones or coarse sand, and the particle size of the water filtering material layer is 6-8 mm.

Broken stones or coarse sand with the particle size of 6-8mm are adopted to prevent the broken stones or the coarse sand from entering the drainage pipe 21.

In some possible embodiments, as the water permeable facing 3 will be stressed; to prevent localized crush damage;

and a galvanized steel wire mesh 24 is arranged between the water filtering material layer 23 and the water permeable surface layer 3. Specifically, the galvanized steel wire mesh 24 is made of stainless steel material.

In some possible embodiments, for effective fixation of the drain tube 21 and the drainage material layer 23;

the section of the galvanized steel wire mesh 24 layer is in a U-shaped structure, and the opening of the galvanized steel wire mesh is arranged at one side close to the water filtering material layer 23; the water filtering material layer 23 and the drain pipe 21 are positioned in the U-shaped structure.

In some possible embodiments, the galvanized steel wire mesh 24 is fixedly connected with the concrete layer 1 at the open end.

During construction, one side of the galvanized steel wire mesh 24 is fixed, then the drain pipe 21 and the water filtering material layer 23 are laid, and finally the other side of the galvanized steel wire mesh 24 is fixed.

Furthermore, the water permeable components 2 are arranged in parallel and have a distance of 1000 mm.

Further, the thickness of the water permeable surface layer 3 is at least 60mm, so that the protection of the water permeable component 2 is effectively realized.

Furthermore, in order to effectively realize water prevention, rainwater is prevented from entering the bridge; the concrete layer 1 is waterproof concrete; a waterproof layer may also be provided on the deck 10.

In some possible embodiments, the water drainage pipes 21 in the water permeable module 2 have both ends extending beyond the side wall of the bridge for drainage.

The present invention is not limited to the foregoing embodiments. The invention extends to any novel feature or any novel combination of features disclosed in this specification, and to any novel method or process steps or any novel combination of features disclosed.

Claims

1. A bridge deck water permeable structure is characterized by comprising a concrete layer arranged on a bridge deck, a water permeable surface layer arranged on the concrete layer, and a plurality of groups of water permeable assemblies arranged between the concrete layer and the water permeable surface layer;

the subassembly that permeates water is including mating formation drain pipe spare layer on the concrete layer and be located drain pipe spare layer and the drainage material layer of permeating water between the surface course.

2. The bridge deck water permeable structure according to claim 1, wherein said drainage pipe layer comprises a plurality of drainage pipes installed on a concrete layer, and a water permeable geotextile sleeved outside the drainage pipes; one side of the drain pipe close to the water filtering material layer is provided with a plurality of drain holes.

3. The bridge deck water permeable structure according to claim 2, wherein said drain pipes are two and parallel, and the distance between two of said drain pipes is 20 mm.

4. The bridge deck water permeable structure of claim 2, wherein the drain holes have a 5mm diameter and are arranged in a quincunx pattern.

5. The bridge deck water permeable structure of claim 2, wherein the concrete layer is provided with a groove for installing a drain pipe, and one side of the drain pipe close to the water filtering material layer extends into the water filtering material layer.

6. Bridge deck water permeable structure according to any one of claims 1 to 5, wherein said concrete layer is made of C30 reinforced concrete.

7. A bridge deck water permeable structure according to claim 6 wherein said drainage material layer is made of crushed stone or grit having a particle size of 6-8 mm.

8. The bridge deck water permeable structure according to claim 7, wherein galvanized steel wire mesh is arranged between said water filtering material layer and water permeable surface layer.

9. The bridge deck water permeable structure according to claim 8, wherein the galvanized steel wire mesh layer has a U-shaped cross section, and an opening of the U-shaped cross section is arranged on one side close to the water filtering material layer; the drainage material layer and the drainage pipe fitting layer are positioned in the U-shaped structure.

10. The bridge deck water permeable structure of claim 9, wherein the galvanized steel wire mesh is fixedly connected with the concrete layer at the open end.