CN208501857U - A kind of drainage system that Box-shaped Drainage Culvert is not deposited - Google Patents

A kind of drainage system that Box-shaped Drainage Culvert is not deposited Download PDF

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Publication number
CN208501857U
CN208501857U CN201820956670.4U CN201820956670U CN208501857U CN 208501857 U CN208501857 U CN 208501857U CN 201820956670 U CN201820956670 U CN 201820956670U CN 208501857 U CN208501857 U CN 208501857U
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China
Prior art keywords
drainage
drainage ditch
ditch
rainwater
box
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CN201820956670.4U
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Chinese (zh)
Inventor
刘佳
詹玮璇
孙涛
龚俊
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Guangzhou Urban Planning Survey and Design Institute
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Guangzhou Urban Planning Survey and Design Institute
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Abstract

The utility model provides a kind of drainage system that Box-shaped Drainage Culvert is not deposited, including Box-shaped Drainage Culvert and two water inlet pipes, the Box-shaped Drainage Culvert includes the second drainage ditch of the first drainage ditch and two connection water inlets, second drainage ditch is symmetrically arranged in the two sides of first drainage ditch, the water inlet pipe is symmetrically arranged in the outside of second drainage ditch, the water inlet tube inlet is connected to extraneous drainage pipeline, and the water outlet of the water inlet pipe is connected to second drainage ditch;Arc chute is arranged at second drainage ditch bottom, the bottom end of the arc chute is concordant with the bottom end of first drainage ditch, the width of second drainage ditch is less than the width of first drainage ditch, has overflow weir between second drainage ditch and first drainage ditch.The utility model can solve to be also easy to produce siltation in discharge conduit in the prior art and reduce channel drainability, prevent the rainwater on ground is from discharging rainwater by channel in time, to lead to the problem of water logging phenomenon.

Description

A kind of drainage system that Box-shaped Drainage Culvert is not deposited
Technical field
The utility model relates to structural engineering field more particularly to a kind of drainage systems that Box-shaped Drainage Culvert is not deposited.
Background technique
In recent years, China's urbanization is accelerated to promote, and urban size constantly expands, urban population sharply increases, although giving city Town socio-economic development is filled with vigor, but has also aggravated urban flooding risk, brings to urban flood defence water drainage work huge Big challenge.During urban development, city rainwater drainage by based on original natural ditch water discharge, being developing progressively as pipeline and Based on channel draining.Contain a large amount of solid particulate matter after surface runoff in rainwater, when amount of rainfall is smaller, rainwater is in pipe Flow velocity in road and channel is lower, and contained solid particle can be deposited on duct bottom in water, due to rainwater and solid particulate matter It can not achieve and be kept completely separate in flowing, and there are also sewage can converge in flow ipe and channel, when rainwater is in pipeline and channel When flow velocity is slower, the solid particulate matter in rainwater and sewage can be deposited on the bottom of pipeline and the bottom of channel, when deposit is got over When coming more, the cross-section of river of pipeline and channel will be reduced, and the drainability of pipeline and channel also reduces, so that ground Rainwater cannot be discharged in time by pipeline and channel, to generate water logging phenomenon.
Summary of the invention
Based on this, the purpose of this utility model is to provide a kind of drainage systems that Box-shaped Drainage Culvert is not deposited, existing to solve Have the drainability of pipeline and channel in technology lower, prevent the rainwater on ground from by pipeline and channel discharge in time to Lead to the problem of water logging phenomenon.
A kind of the technical solution of the utility model are as follows: drainage system that Box-shaped Drainage Culvert is not deposited comprising Box-shaped Drainage Culvert and Two water inlet pipes, the Box-shaped Drainage Culvert include the second drainage ditch of the first drainage ditch and two connection water inlets, and two described the Two drainage ditch are symmetrically arranged in the two sides of first drainage ditch, and two water inlet pipes are symmetrically arranged in described The outside of two drainage ditch, the water inlet tube inlet are connected to extraneous drainage pipeline, and the water outlet of the water inlet pipe is connected to described Second drainage ditch;
Arc chute, the bottom end of the bottom end of the arc chute and first drainage ditch are arranged at second drainage ditch bottom Concordantly, the width of second drainage ditch is less than the width of first drainage ditch, and the height of second drainage ditch is less than institute The height of the first drainage ditch is stated, overflow weir is equipped between first drainage ditch and second drainage ditch.Optionally, described The width ratio of the width of two drainage ditch and first drainage ditch is less than or equal to 1/5.
Optionally, two water inlet pipes are symmetrically disposed on the outside of second drainage ditch, second drainage ditch Overflow height and the height ratio of first drainage ditch are 1/2.
Optionally, the water inlet pipe is pvc pipe.
Optionally, the gradient of first drainage ditch is identical with the gradient of second drainage ditch.
Implement the utility model embodiment, has the following beneficial effects:
The drainage system that the Box-shaped Drainage Culvert of the utility model is not deposited, when external rainwater is discharged, rainwater is logical Water inlet pipe is crossed to be discharged into Box-shaped Drainage Culvert, and the water outlet of water inlet pipe is connected to the second drainage ditch, due to the bottom of the second drainage ditch End is equipped with arc chute, and arc chute can increase the flow velocity of rainwater, solid particulate matter in rainwater is washed away in river and water body;The The width of two drainage ditch less than the first drainage ditch width, the height of the second drainage ditch less than the first drainage ditch height, second The section of drainage ditch is small relative to the cross-sectional area of the first drainage ditch, and thus the second drainage ditch has biggish hydraulic radius, Rainwater flow speed is larger, and therefore, the rainwater flowed into from the water outlet of water inlet pipe need to first pass through the second drainage ditch, passes through in rainwater When the second drainage ditch, due to the effect of arc chute, solid particulate matter entrained by rainwater is not easy to generate in Box-shaped Drainage Culvert Precipitating, moreover, when needing the rainwater discharged to be more than the saturation of the second drainage ditch, rainwater can be from the second drainage ditch Top overflow into the first drainage ditch, overflow go out rainwater discharged by the first drainage ditch, because solid particulate matter is by rainwater The swash of wave will not be deposited to river or water body, solid particulate matter in water channel in the second drainage ditch.So the utility model The drainability of drainage system is stronger, less or when amount of rainfall is more in amount of rainfall, the rainwater on ground can be made to pass through pipe Road and channel discharge in time, to avoid generating the generation of water logging phenomenon.
Detailed description of the invention
Fig. 1 is the drainage system structural schematic diagram of the utility model.
Description of symbols:
1, Box-shaped Drainage Culvert;11, the first drainage ditch;12, the second drainage ditch;121, arc chute;122, overflow weir;2, it intakes Pipe.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts Every other embodiment obtained, fall within the protection scope of the utility model.
In the description of the present invention, it should be understood that term " on ", "lower", "left", "right", "top", "bottom" etc. The orientation or positional relationship of instruction is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description the utility model It is described with simplifying, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation structure It makes and operates, therefore should not be understood as limiting the present invention.
As shown in Figure 1, a kind of drainage system that Box-shaped Drainage Culvert is not deposited provided by the utility model embodiment comprising Box-shaped Drainage Culvert 1 and two water inlet pipes 2, Box-shaped Drainage Culvert 1 include the second drainage ditch 12 that the first drainage ditch 11 and two have water inlet, Two the second drainage ditch 12 are symmetrically arranged in the outside of the first drainage ditch 11, and two water inlet pipes 2 are symmetrically arranged in The outside of two drainage ditch 12, the entrance of water inlet pipe 2 are connected to extraneous drainage pipeline, and the water outlet of water inlet pipe 2 is connected to second row Water channel 12;
Second drainage ditch 12 includes arc chute 121, and the bottom end of arc chute 121 and the bottom end of the first drainage ditch 11 are flat Together, the width of the second drainage ditch 12 is less than the width of the first drainage ditch 11, and the height of the second drainage ditch 12 is less than the first drainage ditch 11 height is equipped with overflow weir 122 between the second drainage ditch 12 and the first drainage ditch 11.
Based on above-mentioned setting, the drainage system that the Box-shaped Drainage Culvert of the utility model is not deposited, when external rainwater needs to carry out When discharge, rainwater is discharged into Box-shaped Drainage Culvert 1 by water inlet pipe 2, and the water outlet of water inlet pipe 2 is connected to the second drainage ditch 12, Since the bottom end of the second drainage ditch 12 is equipped with arc chute 121, arc chute 121 can increase the flow velocity of rainwater, will incite somebody to action in rainwater Solid particulate matter washes away in river and water body;Width of the width of second drainage ditch 12 less than the first drainage ditch 11, the second draining The height of canal 12 is less than the height of the first drainage ditch 11, and the cross-sectional area of the second drainage ditch 12 is relative to the disconnected of the first drainage ditch 11 Face area is small, and thus the second drainage ditch 12 has biggish hydraulic radius, and rainwater flow velocity is larger, therefore, from going out for water inlet pipe 2 The rainwater that the mouth of a river flows into need to first pass through the second drainage ditch 12, when rainwater passes through the second drainage ditch 12, due to arc chute 121 Effect, solid particulate matter entrained by rainwater are not easy to generate precipitating in Box-shaped Drainage Culvert 1, moreover, when needing to arrange When the rainwater put is more than the saturation of the second drainage ditch 12, rainwater can be from the top overflow of the second drainage ditch 12 to the first drainage ditch In 11, the rainwater that overflow goes out is discharged from the first drainage ditch 11, because solid particulate matter is rushed in the second drainage ditch by rainwater River or water body are flowed to, solid particulate matter will not deposit in water channel, so, the draining energy of the drainage system of the utility model Power is stronger, less or when amount of rainfall is more in amount of rainfall, and the rainwater on ground can be made to discharge in time by pipeline and channel, To avoid the problem that generating water logging phenomenon.
In the present embodiment, as shown in Figure 1, in order to enable rainwater the second drainage ditch 12 flow velocity faster, consequently facilitating rain Water goes out solid particle into river or water body, and the width of the second drainage ditch 12 and the width ratio of the first drainage ditch 11 are small In equal to 1/5.Specifically, the flow velocity of the second drainage ditch 12 can be designed by hydraulic radius.Rainwater initially enters second row Water channel 12, because the width of the second drainage ditch 12 is smaller, the hydraulic radius of the second drainage ditch 12 is bigger, and rainwater is in the second drainage ditch 12 Flow velocity faster, so that the solid particle in rainwater can be brought into river or water body by rainwater, wherein the second drainage ditch 12 The width ratio of width and the first drainage ditch 11 is preferably 1/5, and in the present embodiment, the width of the second drainage ditch 12 is 300mm, the The width of one drainage ditch 11 is 1500mm.
In the present embodiment, as shown in Figure 1, flowing into the second drainage ditch 12 to easily facilitate the rainwater flowed out from water inlet pipe 2 In, two water inlet pipes 2 are symmetrically disposed on the middle and upper part of the second drainage ditch 12, the height of the second drainage ditch 12 and the first drainage ditch 11 Height ratio be 1/2.Specifically, height of the water inlet pipe 2 apart from ground and the second drainage ditch 12 apart from the height on ground as, To make the rainwater in water inlet pipe 2, the second drainage ditch 12 is flowed into first, wherein the height of the first drainage ditch 11 is 1000mm, the The height of weir plate of two drainage ditch 12 is 500mm, specific height value and second drainage ditch 12 of this programme to the first drainage ditch 11 Specific height value not to be limited, user can be designed as needed.
In the present embodiment, as shown in Figure 1, in order to enhance the intensity of the first drainage ditch 11 and the second drainage ditch 12, first row Water channel 11 and the second drainage ditch 12 are reinforced concrete wall.
In the present embodiment, as shown in Figure 1, the flowing for the ease of rainwater in arc chute 121, arc chute 121 Shape is U-shaped.Specifically, U-shaped arc chute 121 can increase the flowing velocity of rainwater, improves rainwater and go out solid particle Channel is precipitated to the efficiency in river and water body so that the solid particle that rainwater carries is not easy to generate in the second drainage ditch 12.
In the present embodiment, as shown in Figure 1, the second drainage ditch 12 further includes overflow weir 122, the overflow weir of the second drainage ditch 12 122 can make the pond of the second drainage ditch 12 form certain accommodation space, convenient for when amount of rainfall is smaller, rainwater is completely second It is flowed in drainage ditch 12.
In the present embodiment, as shown in Figure 1, water inlet pipe 2 is pvc pipe, pvc pipe have that fluid resistance is small, corrosion resistance is strong and The good feature of watertightness, convenient for the flowing of rainwater.
In the present embodiment, as shown in Figure 1, the gradient of the first drainage ditch 11 is identical with the gradient of the second drainage ditch 12, in rain When water is larger, to easily facilitate rainwater in the discharge of the first drainage ditch 11 and the second drainage ditch 12.
To sum up, the drainage system that the Box-shaped Drainage Culvert of the utility model is not deposited, when external rainwater is discharged, rain Water is discharged into Box-shaped Drainage Culvert 1 by water inlet pipe 2, and the water outlet of water inlet pipe 2 is connected to the second drainage ditch 12, due to second row The bottom end of water channel 12 is equipped with arc chute 121, and due to the effect of arc chute 121, solid particulate matter entrained by rainwater is not allowed Precipitating is generated easily in Box-shaped Drainage Culvert, rainwater brings solid particulate matter in river and water body into flow process;Second draining The width of canal 12 less than the first drainage ditch 11 width, the height of the second drainage ditch 12 less than the first drainage ditch 11 height, The cross-sectional area of two drainage ditch 12 is small relative to the cross-sectional area of the first drainage ditch 11, and thus the second drainage ditch 12 has biggish Hydraulic radius, rainwater flow velocity is larger, and therefore, the rainwater flowed into from the water outlet of water inlet pipe 2 need to first pass through the second drainage ditch 12, Rainwater pass through the second drainage ditch 12 when, because rainwater flow velocity is larger, entrained by solid particulate matter be not easy in Box-shaped Drainage Culvert 1 Middle generation precipitating, moreover, when needing the rainwater discharged to be more than the saturation of the second drainage ditch 12, rainwater can be from the Into the first drainage ditch 11, the rainwater that overflow goes out is discharged from the first drainage ditch 11 for the top overflow of two drainage ditch 12, and Solid particulate matter is as the swash of wave goes out pipeline to river or water body to rainwater in the second drainage ditch 12.So the utility model The drainability of drainage system is stronger, less or when amount of rainfall is more in amount of rainfall, the rainwater on ground can be made to pass through pipe Road and channel discharge to avoid the problem that generating water logging phenomenon in time.
It should be understood that various information are described in the utility model using term " first ", " second " etc., but these Information should not necessarily be limited by these terms, these terms are only used to for same type of information being distinguished from each other out.For example, not departing from this In the case where utility model range, " first " information can also be referred to as " second " information, and similar, " second " information can also be with Referred to as " first " information.
The above is preferred embodiments of the present invention, it is noted that for the ordinary skill of the art For personnel, without departing from the principle of this utility model, several improvement and deformations can also be made, these improve and become Shape is also considered as the protection scope of the utility model.

Claims (5)

1. a kind of drainage system that Box-shaped Drainage Culvert is not deposited, which is characterized in that including Box-shaped Drainage Culvert and two water inlet pipes, the row Water tank contains the second drainage ditch including the first drainage ditch and two connection water inlets, and two second drainage ditch are respectively symmetrically set The two sides of first drainage ditch are placed in, two water inlet pipes are symmetrically arranged in the outside of second drainage ditch, institute It states into water tube inlet and is connected to extraneous drainage pipeline, the water outlet of the water inlet pipe is connected to second drainage ditch;
Arc chute is arranged at second drainage ditch bottom, and the bottom end of the arc chute and the bottom end of first drainage ditch are flat Together, the width of second drainage ditch is less than the width of first drainage ditch, and the height of second drainage ditch is less than described The height of first drainage ditch is equipped with overflow weir between first drainage ditch and second drainage ditch.
2. the drainage system that Box-shaped Drainage Culvert as described in claim 1 is not deposited, which is characterized in that the width of second drainage ditch The width ratio of degree and first drainage ditch is less than or equal to 1/5.
3. the drainage system that Box-shaped Drainage Culvert as described in claim 1 is not deposited, which is characterized in that two water inlet pipes are symmetrical It is set to the two sides of first drainage ditch, the height ratio of the overflow height of second drainage ditch and first drainage ditch It is 1/2.
4. the drainage system that Box-shaped Drainage Culvert as described in claim 1 is not deposited, which is characterized in that the water inlet pipe is pvc pipe.
5. the drainage system that Box-shaped Drainage Culvert as described in claim 1 is not deposited, which is characterized in that the slope of first drainage ditch It spends identical with the gradient of second drainage ditch.
CN201820956670.4U 2018-06-20 2018-06-20 A kind of drainage system that Box-shaped Drainage Culvert is not deposited Active CN208501857U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820956670.4U CN208501857U (en) 2018-06-20 2018-06-20 A kind of drainage system that Box-shaped Drainage Culvert is not deposited

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820956670.4U CN208501857U (en) 2018-06-20 2018-06-20 A kind of drainage system that Box-shaped Drainage Culvert is not deposited

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111424569A (en) * 2020-04-02 2020-07-17 武汉圣禹排水系统有限公司 A cut dirty device for box culvert

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111424569A (en) * 2020-04-02 2020-07-17 武汉圣禹排水系统有限公司 A cut dirty device for box culvert

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