CN214362968U

CN214362968U - Winding culvert

Info

Publication number: CN214362968U
Application number: CN202120009658.4U
Authority: CN
Inventors: 赵津磊; 许雪梅; 王海俊
Original assignee: Jiangsu Surveying And Design Institute Of Water Resources Co ltd
Current assignee: Jiangsu Surveying And Design Institute Of Water Resources Co ltd
Priority date: 2021-01-04
Filing date: 2021-01-04
Publication date: 2021-10-08
Anticipated expiration: 2031-01-04

Abstract

The utility model provides a winding culvert, which comprises a corrugated steel pipe, a concrete protective layer, a cushion layer and a reinforcing rib, wherein the cushion layer is arranged below the corrugated steel pipe to support the corrugated steel pipe; the corrugated steel pipe comprises at least two straight line sections and at least two bent sections, wherein the straight line sections are connected with the bent sections. The utility model provides a sinuous culvert sets up to straightway and crooked section through with corrugated steel pipe and makes the culvert of making form crooked section and straightway combination, has eliminated the tradition and has cut the high-speed flood threat that the straight way of getting brought for the low reaches.

Description

Winding culvert

Technical Field

The utility model belongs to the technical field of the culvert technique and specifically relates to a wriggling type culvert.

Background

In engineering construction, when an embankment or a roadbed needs to pass over a natural river channel, rivers on two sides of the embankment are connected by adopting culverts mostly, in the design mode of the existing culverts, the culverts are generally linear, even if the occupied river channel section is in a serpentine shape, the river channel section is still replaced by the linear culverts, engineering is called as a straight intercepting engineering, most of the rivers in the nature are in a serpentine shape, the upstream river water of the river channel is enabled to flow too fast downstream by the straight intercepting engineering, and the threat of high-flow-rate flood is brought to the downstream.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a meander type culvert to solve foretell technical problem.

The technical scheme of the application is as follows: a winding culvert comprises corrugated steel pipes, a concrete protective layer, a cushion layer and reinforcing ribs, wherein the cushion layer is arranged below the corrugated steel pipes and supports the corrugated steel pipes, the concrete protective layer is arranged on the cushion layer and wraps the corrugated steel pipes, and the reinforcing ribs are arranged in the concrete and are positioned above the corrugated steel pipes; the corrugated steel pipe comprises at least two straight line sections and at least two bent sections, wherein the straight line sections are connected with the bent sections.

Preferably, the straight section and the curved section are connected by a flange.

Preferably, both ends of the corrugated steel pipe are straight line segments.

Preferably, the corrugated steel pipe comprises two straight line sections and three bending sections, wherein one bending section is a semicircular bending section, the other two bending sections are half of the semicircular bending section to form arc sections, and the two arc sections are located on two sides of the semicircular bending section and are connected with the semicircular bending section through a first flange plate; one ends of the two bending sections, which are not connected with the semicircular bending sections, are connected with the corresponding straight sections through second flanges; and the two groups of first flanges are positioned between the two groups of second flanges.

Preferably, the corrugated steel pipe comprises two straight line sections and two bending sections, the two bending sections are semicircular bending sections, and the two semicircular bending sections are connected through a first flange plate; the two straight line sections are connected with the corresponding semicircular bent sections through second flange plates.

Preferably, the cross section of the concrete protective layer is trapezoidal.

Preferably, the straight section and the curved section are detachably connected.

Preferably, the arrangement direction of the reinforcing ribs is perpendicular to the axis direction of the corrugated steel pipe, the length of the reinforcing ribs is more than 1.5 times of the outer diameter of the corrugated steel pipe, and hooks bent towards the cushion layer direction are arranged at two ends of the reinforcing ribs.

The utility model provides a sinuous culvert makes the culvert of making form curved segment and straightway combination through setting up the ripple steel pipe into straightway and curved segment, has eliminated the tradition and has cut the high-speed flood threat that the straight way of getting brought for low reaches, especially with the straightway with curved segment sets up to the mode that can dismantle the connection for a plurality of straightways and a plurality of curved segment can make up wantonly, thereby can set up the corresponding shape rather than corresponding of culvert according to the former appearance that the river course meanders, slow down downstream velocity of flow.

Drawings

FIG. 1 is one of the schematic cross-sectional views of a culvert;

FIG. 2 is a second schematic cross-sectional view of the culvert;

FIG. 3 is a schematic structural view of a corrugated steel pipe in example 2;

FIG. 4 is a schematic structural view of a corrugated steel pipe in example 3;

in the figure: the concrete structure comprises a corrugated steel pipe 1, a concrete protective layer 2, a cushion layer 3, a reinforcing rib 4, a second flange plate 11, a first flange plate 21, a straight section 101 and a bent section 102.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

Embodiment 1, the utility model provides a winding culvert, see fig. 1-4, including corrugated steel pipe 1, concrete inoxidizing coating 2, bed course 3 and strengthening rib 4, the bed course set up in the below of corrugated steel pipe is to the support of corrugated steel pipe, the concrete inoxidizing coating set up in on the bed course, wrap up the corrugated steel pipe, the strengthening rib sets up in the concrete, be located the top of corrugated steel pipe, be used for increasing the compressive capacity of culvert top concrete, in this embodiment, the direction of setting up of strengthening rib is perpendicular with the axis direction of corrugated steel pipe, length is more than 1.5 times of corrugated steel pipe external diameter, both ends are equipped with the crotch of buckling to the bed course direction and make the fine anchor of reinforcing bar inside the concrete, avoid the reinforcing bar to take place to slide; the corrugated steel pipe comprises at least two straight line sections 101 and at least two bent sections 102, and the straight line sections and the bent sections are detachably connected. In this embodiment, the straight section and the curved section may be generally connected by a flange.

Foretell sinuous culvert sets up the culvert that makes to make into through setting up corrugated steel pipe into straightway and crooked section and forms crooked section and straightway combination, has eliminated the tradition and has cut the bend and get the high-speed flood threat that straight way brought for low reaches, especially with the straightway with crooked section sets up to the mode of dismantling the connection for a plurality of straightways and a plurality of crooked sections can make up wantonly, thereby can set up the corresponding shape rather than corresponding with the culvert according to the sinuous original appearance of river course, slow down downstream velocity of flow.

Generally, in order to facilitate downstream drainage and prevent water from being discharged in a spiral shape to impact a downstream river protection slope when the water is drained downstream, two ends of the corrugated steel pipe are straight line sections. For convenience of construction, the cross section of the concrete protective layer is trapezoidal, and can also be square as shown in the figure, and the protective layer can be in any shape without considering the construction difficulty.

Embodiment 2, embodiment 2 is a specific structure of embodiment 1, and referring to fig. 3, the corrugated steel pipe includes two straight sections and three curved sections, one of the curved sections is a semicircular curved section, and the other two curved sections are half of the semicircular curved section to form arc-shaped sections, and the two arc-shaped sections are located at two sides of the semicircular curved section and connected with the semicircular curved section through a first flange 21; one ends of the two bent sections, which are not connected with the semicircular bent sections, are connected with the corresponding straight sections through second flanges 11; and the two groups of first flanges are positioned between the two groups of second flanges. The structure can make the culvert as same as part of the original river channel, and the culvert can continue to keep the original flow direction after bypassing a certain barrier.

Embodiment 3, embodiment 3 is a specific structure of embodiment 1, and referring to fig. 4, the corrugated steel pipe includes two straight sections and two curved sections, the two curved sections are semicircular curved sections, and the two semicircular curved sections are connected by a first flange 21; the two straight line sections are connected with the corresponding semicircular bent sections through second flanges 11. The structure can lead the culvert to be the same as part of the original river channel, and the flow direction has certain deviation after certain meandering.

Embodiment 4, embodiment 4 is a method for manufacturing the culvert, which comprises the following steps:

< Step1> cofferdam is filled in the upstream of the river for closure, and dry land construction conditions are created;

< Step2> using the natural route of the river as the laying route of the culvert, carrying out foundation pit excavation and necessary foundation treatment, and laying a cushion layer;

step3, customizing and paving the corrugated steel pipe according to the natural form of the river channel;

step4, temporarily supporting the interior of the corrugated steel pipe, pouring concrete on two sides and the top of the corrugated steel pipe, paving a top reinforcing steel bar layer when the top concrete is poured to a certain height and has certain strength, and then continuously pouring the concrete with the rest height;

< Step5> after the concrete part reaches a certain strength, embankment or roadbed is filled, meanwhile, temporary support in the corrugated steel pipe can be removed, upstream cofferdam is removed, and culvert overflowing effect is achieved.

The above description is only for the preferred embodiment of the present invention and is not intended to limit the present invention, and the words first, second, etc. are used only for the distinction of names and not for the limitation of technical terms, and it is obvious to those skilled in the art that the present invention can be variously modified and changed. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A winding culvert is characterized by comprising a corrugated steel pipe (1), a concrete protective layer (2), a cushion layer (3) and reinforcing ribs (4), wherein the cushion layer is arranged below the corrugated steel pipe to support the corrugated steel pipe, the concrete protective layer is arranged on the cushion layer to wrap the corrugated steel pipe, and the reinforcing ribs are arranged in concrete and positioned above the corrugated steel pipe;

the corrugated steel pipe comprises at least two straight sections (101) and at least two bent sections (102), and the straight sections and the bent sections are connected.

2. A serpentine culvert according to claim 1 wherein said straight sections and said curved sections are connected by flanges.

3. The serpentine culvert of claim 1, wherein the corrugated steel pipe has straight line segments at both ends.

4. A serpentine culvert according to claim 3, characterized in that said corrugated steel pipe comprises two straight sections and three curved sections, one curved section being a semi-circular curved section, the other two curved sections being half of the semi-circular curved section forming arc-shaped sections, two of said arc-shaped sections being located on both sides of said semi-circular curved section and being connected to said semi-circular curved section by means of a first flange (21);

one ends of the two bent sections, which are not connected with the semicircular bent sections, are connected with the corresponding straight sections through second flanges (11);

and the two groups of first flanges are positioned between the two groups of second flanges.

5. A serpentine culvert according to claim 3, characterized in that said corrugated steel pipes comprise two straight sections and two curved sections, two of said curved sections being semi-circular curved sections, two of said semi-circular curved sections being connected by a first flange (21);

the two straight line sections are connected with the corresponding semicircular bent sections through second flanges (11).

6. The serpentine culvert of claim 1 wherein the concrete shield has a trapezoidal cross-section.

7. A serpentine culvert according to claim 1 wherein said straight sections and said curved sections are removably connected.

8. The serpentine culvert according to claim 1, wherein the direction of the reinforcing ribs is perpendicular to the axial direction of the corrugated steel pipe, the length of the reinforcing ribs is 1.5 times or more the outer diameter of the corrugated steel pipe, and hooks bent in the direction of the bed are provided at both ends of the reinforcing ribs.