CN219080121U - Culvert - Google Patents
Culvert Download PDFInfo
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- CN219080121U CN219080121U CN202320348679.8U CN202320348679U CN219080121U CN 219080121 U CN219080121 U CN 219080121U CN 202320348679 U CN202320348679 U CN 202320348679U CN 219080121 U CN219080121 U CN 219080121U
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Abstract
The utility model provides a culvert, which comprises a culvert main body and an energy dissipation assembly; a channel for water supply flow is formed inside the culvert main body; the energy dissipation assembly is used for changing the flow direction of water flow, is integrally poured in the culvert main body and is arranged along the internal water flow direction of the culvert main body, and comprises a plurality of transverse energy dissipation groups and longitudinal energy dissipation groups which are arranged in a staggered mode, wherein the transverse energy dissipation groups are uniformly arranged at intervals along the longitudinal direction, and the longitudinal energy dissipation groups are uniformly arranged at intervals along the transverse direction. According to the utility model, a certain number of transverse energy dissipation groups and longitudinal energy dissipation groups which are arranged in a staggered manner are arranged in the culvert main body, so that the energy is consumed by the water flow with a high water head in the culvert main body, the flow speed of the water flow at the outlet is reduced, and only a simple anti-flushing protection building is arranged at the outlet of the culvert main body, so that a reinforced concrete energy dissipation facility with a large arrangement range, high investment and large environmental influence is not required at the outlet.
Description
Technical Field
The utility model belongs to the technical field of water conservancy and hydropower engineering, and particularly relates to a culvert.
Background
Culverts are water transport buildings buried under the ground. The culvert comprises a cave body, an inlet building and an outlet building. The culvert inlet building is formed by paving an inlet wing wall, a bottom protection and a culvert front. The body is positioned below the filling soil and is the main part of the culvert water. The culvert exit building is composed of exit wing walls, a bottom protection and exit anti-impact paving or energy dissipation facilities. The outlet flow rate of the gentle slope culvert is not large, so that the outlet is paved by one section of anti-scour, the outlet flow rate of the steep slope culvert is large, and energy dissipation facilities are needed. In addition, the energy dissipation piers are not arranged in the general culvert, potential energy of water is basically completely converted into kinetic energy, so that the flow velocity of water at the outlet of the culvert is large, a reinforced concrete stilling pool is required to be built at the outlet of the culvert, and a scour prevention sea is arranged behind the stilling pool to avoid scour damage at the outlet of the culvert. The usage amount of reinforced concrete and masonry is large, so that the investment is increased, the energy consumption is increased, the occupied area is increased, and meanwhile, the concept of green ecological environment protection is not met due to the large-scale exposure of the concrete structure and masonry structure.
Disclosure of Invention
The utility model mainly aims to provide a culvert, and aims to solve the technical problem that no energy dissipation pier is arranged in the culvert in the prior art to cause scouring damage to the outlet of the culvert.
In order to achieve the above object, the present utility model provides a culvert comprising:
a culvert body, wherein a water supply flow channel is formed inside the culvert body; and
the energy dissipation assembly is used for changing the flow direction of water flow, the energy dissipation assembly is integrally poured in the culvert main body and is arranged along the internal water flow direction of the culvert main body, the energy dissipation assembly comprises a plurality of transverse energy dissipation groups and longitudinal energy dissipation groups which are arranged in a staggered mode, the transverse energy dissipation groups are uniformly arranged at intervals along the longitudinal direction, and the longitudinal energy dissipation groups are uniformly arranged at intervals along the transverse direction.
In an embodiment of the present utility model, the transverse energy dissipation group includes a plurality of energy dissipation piers uniformly spaced apart in a transverse direction, the longitudinal energy dissipation group includes a plurality of energy dissipation piers uniformly spaced apart in a longitudinal direction, and each of the energy dissipation piers of the longitudinal energy dissipation group is respectively located between any adjacent two of the transverse energy dissipation groups in a crossing manner.
In an embodiment of the present utility model, the culvert body includes a bottom plate, a top plate and a side wall, the top plate, the bottom plate and the side wall enclose an inclined channel, and a plurality of energy dissipation piers are integrally cast on the bottom plate and extend and protrude toward the top plate.
In an embodiment of the present utility model, the longitudinal section of the energy dissipating pier is a right trapezoid structure, right-angle sides of the right trapezoid are located at one side away from the outlet end of the culvert main body, and oblique sides of the right trapezoid are inclined at an angle ranging from 60 ° to 70 °.
In the embodiment of the utility model, the pier height range of the energy dissipation pier meets the following calculation formula:
0.9h k ≥H≥0.8h k
wherein H is the pier height of the energy dissipation pier, and H k By designing floodwater in said channelCritical water depth at that time.
In the embodiment of the utility model, the distance between any two adjacent energy dissipation piers in the longitudinal direction is calculated by adopting the following formula:
L＝mH
wherein L is the distance between any two adjacent energy dissipation piers in the longitudinal direction; m is the longitudinal slope ratio of the culvert.
In the embodiment of the utility model, the distance between any two adjacent energy dissipation piers in the transverse direction is equal to the pier width of the energy dissipation pier, and the distance can be calculated by the following formula:
W＝1.5H
wherein W is the pier width of the energy dissipation pier.
In an embodiment of the utility model, the wall height of the side wall of the culvert is greater than or equal to three times the pier height of the energy dissipating pier.
In an embodiment of the utility model, the energy dissipating piers are reinforced concrete material parts.
In an embodiment of the utility model, a block stone impact prevention piece is arranged between the outlet end of the culvert main body and the downstream river channel, and the block stone impact prevention piece is used for reducing the impact force of water flow flowing out of the outlet end of the culvert main body.
According to the technical scheme, the culvert provided by the embodiment of the utility model has the following beneficial effects:
the energy dissipation assembly is integrally poured in the culvert main body, and transverse energy dissipation groups and longitudinal energy dissipation groups in the energy dissipation assembly are arranged in a staggered manner; according to the energy dissipation device, the transverse energy dissipation groups and the longitudinal energy dissipation groups which are arranged in a certain number in the culvert main body are arranged in a staggered mode, so that the water flow of the high water head is used for consuming energy in the culvert main body, the flow speed of the water flow at the outlet is reduced, and only a simple anti-flushing protection block is arranged at the outlet of the culvert main body, so that the reinforced concrete energy dissipation facility with a large setting range, high investment and large influence on the environment is not needed at the outlet.
Additional features and advantages of the utility model will be set forth in the detailed description which follows.
Drawings
The accompanying drawings are included to provide an understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the description serve to explain, without limitation, the utility model. In the drawings:
FIG. 1 is a schematic view of a culvert body according to an embodiment of the utility model;
FIG. 2 is a schematic cross-sectional view of the portion A-A of FIG. 1;
FIG. 3 is a schematic illustration of sizing of an energy dissipating pier within a culvert body at a first view angle in accordance with the utility model;
fig. 4 is a schematic illustration of sizing of an energy dissipating pier within a culvert body at a second view angle in accordance with the utility model.
Description of the reference numerals
| Reference numerals | Name of the name | Reference numerals | Name of the |
| 100 | Culvert |
103 | |
| 101 | |
200 | |
| 102 | |
300 | Block stone anti-impact piece |
Detailed Description
Specific embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration and explanation only and are not intended to limit the present utility model.
For traditional culvert construction, especially steep slope culvert, because the velocity of flow is very big in the culvert, in order to avoid rivers to dash the low reaches, need to build the energy dissipation facility of large tracts of land in the export. The energy dissipation facilities are generally reinforced concrete structures, so that the investment is increased, and the environment-friendly, ecological and environment-friendly concepts are violated. The culvert with the energy dissipation function solves the problems of large occupied area and high energy consumption of hard protection construction of the culvert energy dissipation facility in the current engineering design construction, has the advantages of being green, ecological, environment-friendly, small in occupied area, low in energy consumption and low in investment, and is suitable for energy dissipation of the culvert with large flow velocity.
Further, as shown in fig. 1, in an embodiment of the present utility model, there is provided a culvert including:
a culvert main body 100 having a water supply flow passage formed therein; and
the energy dissipation assembly is used for changing the flow direction of water flow, is integrally poured in the culvert main body 100 and is arranged along the internal water flow direction of the culvert main body 100, and comprises a plurality of transverse energy dissipation groups and longitudinal energy dissipation groups which are arranged in a staggered mode, wherein the transverse energy dissipation groups are uniformly arranged at intervals along the longitudinal direction, and the longitudinal energy dissipation groups are uniformly arranged at intervals along the transverse direction.
According to the energy dissipation device, a certain number of transverse energy dissipation groups and longitudinal energy dissipation groups which are arranged in a staggered manner are arranged in the culvert main body 100, when water flows in a channel, the flow direction of the water flow can be changed and blocked (the arrow direction shown in fig. 1 is the water flow direction) due to the existence of the transverse energy dissipation groups and the longitudinal energy dissipation groups, so that the water flow with a high water head consumes energy in the culvert, and the flow speed of outlet water flow is reduced; therefore, only a simple anti-impact protection brick is required to be arranged at the outlet of the culvert main body 100, and a reinforced concrete energy dissipation facility which has large outlet arrangement range, high investment and large environmental impact is not required.
In the embodiment of the present utility model, the lateral energy dissipating group includes a plurality of energy dissipating piers 200 uniformly spaced apart in the lateral direction, the longitudinal energy dissipating group includes a plurality of energy dissipating piers 200 uniformly spaced apart in the longitudinal direction, and each energy dissipating pier 200 of the longitudinal energy dissipating group is respectively positioned to intersect between any adjacent two of the lateral energy dissipating groups. The number of the energy dissipation piers 200 in the longitudinal energy dissipation group and the transverse energy dissipation group can be at least greater than or equal to two according to actual requirements.
After the energy dissipation piers 200 are arranged in the culvert main body 100, the water flow direction in the culvert main body 100 starts to be disordered (arrow direction shown in fig. 2), and flows transversely, longitudinally and vertically, and the energy of water flow is greatly consumed in the process, so that the flow speed of the water flow at the outlet of the culvert is reduced, the scouring of a river channel at the outlet of the culvert is reduced, and the engineering quantity of the outlet anti-scour paving or energy dissipation facilities is saved. As shown in fig. 1, the longitudinal energy dissipation group comprises two energy dissipation piers 200, the transverse energy dissipation group comprises four energy dissipation piers 200, wherein each energy dissipation pier 200 of the longitudinal energy dissipation group is respectively located between any two adjacent transverse energy dissipation groups, and a longitudinal extension line of each energy dissipation pier 200 of the longitudinal energy dissipation group is located between two energy dissipation piers 200 of the transverse energy dissipation group.
In the embodiment of the utility model, the culvert main body 100 comprises a bottom plate 101, a top plate 102 and side walls 103, wherein the bottom plate 102, the bottom plate 101 and the side walls 103 are surrounded to form an inclined channel, a plurality of energy dissipation piers 200 are uniformly cast on the bottom plate 101 and extend towards the top plate 102 to protrude, and the arrangement of the plurality of energy dissipation piers 200 extends the whole length of the bottom plate 101, so that a better energy dissipation effect can be achieved in the water flow process in the channel.
In the embodiment of the present utility model, the longitudinal section of the energy dissipating pier 200 is a right trapezoid structure, the right-angle side of the right trapezoid is located at one side facing away from the outlet end of the culvert body 100, and the inclined side of the right trapezoid is inclined at an angle ranging from 60 ° to 70 °. As shown in fig. 2, since the flow velocity of water flowing in from the inlet end of the culvert body 100 is maximized, by this design, the direction of water flow can be directly changed by 90 degrees at the beginning, and the water flow longitudinally flows along the right-angle sides of the right-angle trapezoids and then flows along the short sides and the oblique sides of the right-angle trapezoids in sequence. Moreover, experiments prove that when the inclined angle of the hypotenuse of the right trapezoid ranges from 60 degrees to 70 degrees, all the energy dissipation piers 200 in the culvert main body 100 have the best energy dissipation effect on water flow.
In addition, since the width B of the culvert body 100 is determined according to the design overcurrent capacity Q, the calculation formula is B>5.6Q, after the width of the culvert is determined, the critical water depth of the culvert passing through the designed flood can be obtained, and the size, the spacing and the number of the energy dissipation piers 200 can be determined according to the critical water depth. Since the pier surface of the energy dissipating pier 200 is orthogonal to the bottom plate 101 of the culvert body 100, further, as shown in fig. 4, the pier height range of the energy dissipating pier 200 satisfies the following calculation formula: 0.9h k ≥H≥0.8h k Where H is the pier height of the energy dissipating pier 200 and hk is the critical water depth in the channel through which the flood is designed. And, in order to ensure that the oblique sides of the right trapezoid are inclined at an angle of 60 to 70 degrees, the short sides lt=0.2h of the right trapezoid, and the long sides lb=0.7h of the right trapezoid.
As shown in fig. 3, since the row pitch of two adjacent energy dissipating piers 200 is related to the longitudinal slope ratio of the culvert body 100, the distance between any adjacent two energy dissipating piers 200 in the longitudinal direction is calculated using the following formula: l=mh, where L is the distance between any two adjacent energy dissipating piers 200 in the longitudinal direction; m is the longitudinal slope ratio of the culvert.
In the embodiment of the present utility model, the distance between any two adjacent energy dissipating piers 200 in the lateral direction is equal to the pier width of the energy dissipating pier 200, and can be calculated by the following formula: w=1.5h, where W is the pier width of the energy dissipating pier 200.
In the embodiment of the utility model, the wall height of the side wall 103 of the culvert is greater than or equal to three times the pier height of the energy dissipating pier 200, so that the energy dissipating pier 200 can play a role in dissipating energy and can not block the flow of water flow.
Further, in order to ensure that the energy dissipating pier 200 can be integrally cast with the culvert main body 100, the energy dissipating pier 200 is made of reinforced concrete, that is, the energy dissipating pier 200 is made of the same material as the culvert main body 100.
Because after a plurality of energy dissipation piers 200 are arranged in the culvert main body 100, the flow velocity of water flowing out of the outlet end of the culvert main body 100 is greatly reduced, so that a simple anti-impact facility is only required to be arranged at the outlet of the culvert, specifically, a block stone anti-impact piece 300 is arranged between the outlet end of the culvert main body 100 and a downstream river channel, the block stone anti-impact piece 300 is used for reducing the impact force of water flowing out of the outlet end of the culvert main body 100, the engineering quantity of outlet reinforced concrete energy dissipation facilities and anti-impact facilities is saved, and the engineering occupation is reduced. The stone block impact protection member 300 may be a large stone, and may be triangular, polygonal or other amorphous block structures, which are not limited in shape, and may be placed between the outlet end of the culvert main body 100 and the downstream river, and the distance between the stone block impact protection member and the downstream river is not limited; due to the provision of the rock block impact prevention member 300, it is possible to prevent the downstream river from being flushed with a large pit due to an excessive water flow impact force flowing out from the outlet of the culvert body 100.
In the description of the present utility model, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.
Claims (10)
1. A culvert, characterized in that the culvert comprises:
a culvert body (100) in which a passage through which water flows is formed; and
the energy dissipation assembly is used for changing the flow direction of water flow, the energy dissipation assembly is integrally poured in the culvert main body (100) and is arranged along the internal water flow direction of the culvert main body (100), and the energy dissipation assembly comprises a plurality of transverse energy dissipation groups and longitudinal energy dissipation groups which are arranged in a staggered mode, wherein the transverse energy dissipation groups are uniformly arranged at intervals along the longitudinal direction, and the longitudinal energy dissipation groups are uniformly arranged at intervals along the transverse direction.
2. The culvert of claim 1 wherein said transverse energy-dissipating groups include a plurality of energy-dissipating piers (200) arranged at even intervals in a transverse direction, said longitudinal energy-dissipating groups include a plurality of said energy-dissipating piers (200) arranged at even intervals in a longitudinal direction, each of said energy-dissipating piers (200) of said longitudinal energy-dissipating groups each being positioned crosswise between any adjacent two of said transverse energy-dissipating groups.
3. The culvert of claim 2 wherein said culvert body (100) includes a bottom plate (101), a top plate (102) and side walls (103), said top plate (102), said bottom plate (101) and said side walls (103) enclosing an inclined channel, a plurality of said energy dissipating piers (200) being integrally cast on said bottom plate (101) and extending convexly toward said top plate (102).
4. The culvert of claim 2, wherein a longitudinal section of said energy dissipating pier (200) is a right trapezoid structure, right angle sides of said right trapezoid being located on a side facing away from an outlet end of said culvert body (100), and a hypotenuse of said right trapezoid being inclined at an angle ranging from 60 ° to 70 °.
5. The culvert of claim 2, wherein the pier height range of the energy dissipating pier (200) satisfies the following calculation:
0.9h k ≥H≥0.8h k
wherein H is the pier height of the energy dissipation pier (200), H k Critical water depth when flood is designed for the passage.
6. The culvert of claim 5, wherein a distance between any two adjacent energy dissipating piers (200) in a longitudinal direction is calculated using the formula:
L＝mH
wherein L is the distance between any two adjacent energy dissipation piers (200) in the longitudinal direction; m is the longitudinal slope ratio of the culvert.
7. The culvert of claim 5, wherein a distance between any two laterally adjacent energy dissipating piers (200) is equal to a pier width of the energy dissipating piers (200) and can be calculated by the following formula:
W＝1.5H
wherein W is the pier width of the energy dissipation pier (200).
8. The culvert of claim 5, wherein a wall height of a side wall (103) of the culvert is greater than or equal to three times a pier height of the energy dissipating pier (200).
9. The culvert of any of claims 2-8, wherein the energy dissipating piers (200) are reinforced concrete pieces.
10. The culvert of any of claims 1-8, wherein a block stone impingement member (300) is provided between the outlet end of the culvert body (100) and a downstream river channel, the block stone impingement member (300) being adapted to reduce the impact force of the water flow flowing out of the outlet end of the culvert body (100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320348679.8U CN219080121U (en) | 2023-02-20 | 2023-02-20 | Culvert |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320348679.8U CN219080121U (en) | 2023-02-20 | 2023-02-20 | Culvert |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219080121U true CN219080121U (en) | 2023-05-26 |
Family
ID=86394490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320348679.8U Active CN219080121U (en) | 2023-02-20 | 2023-02-20 | Culvert |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219080121U (en) |
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2023
- 2023-02-20 CN CN202320348679.8U patent/CN219080121U/en active Active
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