CN110714443A - Comprehensive corridor arrangement structure for urban flood diversion - Google Patents
Comprehensive corridor arrangement structure for urban flood diversion Download PDFInfo
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- CN110714443A CN110714443A CN201911135298.6A CN201911135298A CN110714443A CN 110714443 A CN110714443 A CN 110714443A CN 201911135298 A CN201911135298 A CN 201911135298A CN 110714443 A CN110714443 A CN 110714443A
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- flood diversion
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- diversion channel
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B5/00—Artificial water canals, e.g. irrigation canals
- E02B5/02—Making or lining canals
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
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- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
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- General Life Sciences & Earth Sciences (AREA)
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Abstract
The invention relates to a comprehensive corridor arrangement structure for urban flood diversion, belongs to the field of urban underground hydraulic engineering, and can be used in the fields of urban underground hydraulic engineering, municipal engineering and the like. Aiming at the situation that flood control capacity of partial sections of urban riverways is insufficient, a riverway widening and dredging mode is still adopted generally at present, but land acquisition around the riverway is extremely difficult, so that the mode is difficult to land. According to the invention, the appropriate underground flood diversion channel inlets and outlets are selected in consideration of the combination of topographic conditions, underground flood diversion channel lines are arranged below the municipal road, underground pipelines along the lines are collected in a comprehensive pipe gallery mode, and transverse pipeline channels are arranged on a top plate of the comprehensive pipe gallery structure at intervals, so that the problem of pipeline crossing is solved. The invention effectively improves the flood control capability of the urban river and is beneficial to relieving waterlogging in the area along the line.
Description
Technical Field
The invention relates to a comprehensive corridor arrangement structure for urban flood diversion, belongs to the field of urban underground hydraulic engineering, and can be used in the fields of urban underground hydraulic engineering, municipal engineering and the like.
Background
At present, the current river network of a plurality of domestic cities has the current situation that the flood control standard does not reach the standard, in recent years, the phenomenon of 'city sea watching' is frequent, in order to improve the flood control capability of urban river channels, partial river reach of the existing river channels needs to be widened, at present, the mode of 'river channel widening + dredging' is generally adopted, however, the urban land is in large size, the 'river landscape' is supported along the river reach, the land price is more expensive, and the land acquisition around the river channels is extremely difficult, and referring to fig. 1, because of the influence of buildings on two sides of the river channels, a plurality of existing river channels do not have widening conditions. Therefore, the phenomenon of 'widening the river channel and dredging' is difficult to fall on the ground and the phenomenon of 'seeing the sea in the city' is difficult to relieve in a short time.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the comprehensive corridor arrangement structure for city flood diversion is economical and feasible, and the flood control capability of the city river channel is improved.
In order to solve the technical problems, the invention adopts the technical scheme that: a synthesize corridor arrangement structure for city flood diversion, including the river course and arrange the flood diversion passageway in the underground space of the public land used in the city, the import of flood diversion passageway communicates the upper reaches in river course, and the export of flood diversion passageway communicates the low reaches in river course.
Further, the method comprises the following steps: the height of the upper surface of the inlet bottom plate of the flood diversion channel is higher than that of the upper surface of the outlet bottom plate of the flood diversion channel, and the upper surface of the bottom plate of the flood diversion channel is integrally arranged in a slope shape along the length direction of the flood diversion channel.
Further, the method comprises the following steps: the height of the upper surface of the inlet bottom plate of the flood diversion channel is lower than the height of the bottom surface of the river at the inlet position of the flood diversion channel, and the height of the upper surface of the outlet bottom plate of the flood diversion channel is higher than the height of the bottom surface of the river at the outlet position of the flood diversion channel.
Further, the method comprises the following steps: the flood diversion channel is of a cast-in-place concrete structure; the length of the flood diversion channel is less than the length of the river channel between the inlet position and the outlet position of the flood diversion channel.
Further, the method comprises the following steps: the rainwater storehouse and the rainwater pipe network are arranged in the underground space of the urban public land, the flood diversion channel is also used as the rainwater storehouse, and the drainage end of the rainwater pipe network is communicated with the flood diversion channel through the embedded sleeve.
Further, the method comprises the following steps: galleries for laying pipelines are arranged on one side or two sides of the flood diversion channel.
Further, the method comprises the following steps: the corridor comprises a water supply and sewage bin, a power and communication cable bin and a standby bin which are sequentially arranged from top to bottom along the vertical direction.
Further, the method comprises the following steps: the flood diversion channel is provided with a part of segments which are positioned below the urban road, and the top of the flood diversion channel is provided with an embedded pipeline or an embedded pipe slot which transversely passes through the urban road below the urban road to be used as a pipeline crossing channel.
Further, the method comprises the following steps: the pre-buried tub of groove is the U shaped steel groove of welding preparation, and the top in U shaped steel groove sets the apron that can dismantle the connection.
Further, the method comprises the following steps of; manhole holes are arranged on the top plate of the gallery at intervals along the length direction of the gallery, and the manhole holes are provided with top covers which can be detachably connected.
The invention has the beneficial effects that: during implementation, the appropriate underground flood diversion channel inlet and outlet are selected by combining the terrain conditions, and the flood diversion channels are arranged by utilizing the underground spaces of urban public land such as municipal roads, green lands and the like, so that the problem of difficulty in land acquisition is solved, and the implementation is easy. In addition, the underground space of the urban public land is utilized to construct the flood diversion channel, the buried depth is shallow due to the limitation of the elevation of the river bottom of the entrance and the exit of the flood diversion channel, open cut construction is generally adopted, and the construction investment is less. The flood diversion channel preferably adopts a cast-in-place concrete structure, the roughness of the flood diversion channel is far lower than that of an original river channel, and the flood diversion effect is better. In the river channel area between the inlet position and the outlet position of the flood diversion channel, flood diversion can be carried out by utilizing the flood diversion channel, so that the flood control capability of the urban river channel is effectively improved; and the river course streamline is crooked, but the underground flood diversion passageway of the invention can be designed to be more straight, therefore the distance between the entrance and exit of the flood diversion passageway is smaller than the length of the river course, the difference of water level of the entrance and exit of the two is the same, therefore the bottom slope of the flood diversion passageway is steeper than the bottom slope of the river course, compared with adopting the way that the river course widens, the flood diversion effect is also better. In addition, flood diversion passageway still can be simultaneously as rainwater storehouse, uses as flood and rainwater storehouse in flood season, uses as rainwater storehouse at ordinary times, because sectional area is big, can use as the rainwater main pipe, is favorable to inserting the rainwater pipe network of this river reach and outflows, alleviates the waterlogging along the line of this river reach. In summary, when the flood diversion channel is used for flood diversion, the flow rate in the warehouse can reach 2-3 times of the flow rate of a river channel, the required flow area is more than half of that of the river channel, the flood diversion efficiency is higher by adopting the flood diversion channel, and waterlogging in the area along the line can be relieved more favorably. When the thickness of the covering soil above the top plate of the flood diversion channel is smaller, the pipeline street crossing solution provided by the invention can solve the problem of pipeline street crossing.
Drawings
Fig. 1 is a schematic plan view of the overall arrangement of a river channel and a flood diversion channel in the implementation of the present invention;
fig. 2 is a schematic plan view of the flood diversion tunnel of the present invention;
FIG. 3 is a view A-A of FIG. 2;
FIG. 4 is a view B-B of FIG. 2;
FIG. 5 is a view C-C of FIG. 2;
FIG. 6 is a D-D view of FIG. 2;
fig. 7 is a view E-E of fig. 2.
The labels in the figure are: 1-river channel, 2-flood diversion channel, 3-embedded pipe groove, 4-urban road, 5-street sewage pipe, 6-street sewage pipe connector, 7-street rainwater pipe, 8-street rainwater pipe connector, 9-water supply and sewage bin, 10-power and communication cable bin, 11-standby bin, 12-embedded sleeve, 13-embedded waterproof sleeve, 14-cover plate, 15-manhole, 16-building, 17-greening and sidewalk.
Detailed Description
For the purpose of promoting an understanding and an enabling description of the invention, reference should be made to the following detailed description of the preferred embodiments taken in conjunction with the accompanying drawings.
As shown in fig. 1 to 7, the present invention includes a river channel 1 and a flood diversion passage 2 disposed in an underground space of a public urban land, an inlet of the flood diversion passage 2 is communicated with an upstream of the river channel 1, and an outlet of the flood diversion passage 2 is communicated with a downstream of the river channel 1. In specific implementation, the inlet and the outlet of the flood diversion channel 2 are selected according to terrain conditions.
In order to better flood diversion effect and convenient implementation, the height of the upper surface of the inlet bottom plate of the flood diversion channel 2 is higher than that of the outlet bottom plate of the flood diversion channel 2, and the upper surface of the bottom plate of the flood diversion channel 2 is integrally arranged in a slope shape along the length direction of the flood diversion channel 2. The slope of the bottom plate upper surface of flood diversion passageway 2 is designed according to actual conditions, does not have the special requirement, and the slope is bigger, and then flood diversion efficiency of flood diversion passageway 2 is higher.
The height of the upper surface of the inlet bottom plate of the flood diversion channel 2 is preferably set to be lower than the height of the bottom surface of the river channel 1 at the inlet position of the flood diversion channel 2, so that the flood diversion effect is improved. The upper surface elevation of 2 export bottom plates of flood diversion passageway sets up preferably to be higher than 1 bottom surface elevation of river course of 2 exit positions of flood diversion passageway, can avoid the existence of adverse slope like this, is favorable to the flood to flow out to be difficult to the siltation. The elevation of the top plate at the inlet of the flood diversion channel 2 is not particularly required, and if the elevation of the top plate at the inlet is lower than the water level of the river channel 1 at the position of the top plate, a section of pressure flow exists; if the elevation of the inlet top plate is higher than the water level of the river channel 1 at the position of the inlet top plate, no pressure flow exists in the whole process.
The flood diversion channel 2 is preferably presented in a comprehensive pipe gallery mode, and the specific implementation mode is that a rainwater bin and a rainwater pipe network are arranged in an underground space of the urban public land, the flood diversion channel 2 is also used as a rainwater bin, and the drainage end of the rainwater pipe network is communicated with the flood diversion channel 2 through an embedded sleeve 12. Furthermore, galleries for laying the pipelines may also be arranged on one or both sides of the flood diversion tunnel 2. In the embodiment, an arrangement form of the single flood diversion channel 2+ the single-side gallery is adopted, and during specific implementation, the arrangement form can be also adopted according to the width of a road and the amount of overflowing flood according to the requirement: two flood diversion passageway 2+ unilateral corridor, two flood diversion passageway 2+ two side corridors, single flood diversion passageway 2+ two side corridors. The galleries may be made as an integral concrete structure with the flood diversion gallery 2.
The galleries may be laid out according to the type of pipeline along the line, a preferred implementation employed in this embodiment being: the corridor comprises a water supply and sewage bin 9, a power and communication cable bin 10 and a standby bin 11 which are vertically arranged from top to bottom in sequence, and the arrangement mode is convenient to install, arrange and overhaul pipelines.
For convenience of construction, the flood diversion channel 2 should be arranged along the urban road 4 as much as possible, and for the partial segment flood diversion channel 2 located below the urban road 4, the top of the flood diversion channel 2 is provided with an embedded pipeline or an embedded pipe slot 3 transversely passing through the urban road 4 below the urban road 4 to serve as a pipeline street crossing channel. When the thickness of the soil covering above the top plate of the flood diversion channel 2 is smaller, the problem of pipeline crossing can be solved through the embedded pipelines or the embedded pipe grooves 3 arranged in the above way. The pipeline can be arranged in the embedded pipeline or the embedded pipe groove 3 according to actual conditions. In the embodiment, a street-crossing sewage pipe 5 is arranged in part of the embedded pipe groove 3, and the street-crossing sewage pipe 5 is connected to a water supply and sewage bin 9 from the top plate position of the corridor; and a street-crossing rainwater pipe 7 is arranged in part of the embedded pipe grooves 3, and the street-crossing rainwater pipe 7 is communicated with the flood diversion channel 2 from the top plate position of the flood diversion channel 2 to discharge water.
The pre-buried pipe groove 3 is preferably realized by the following method: pre-buried tub of 3 is the U shaped steel groove of welding preparation, and the top in U shaped steel groove sets apron 14 that can dismantle the connection, and apron 14 also adopts the steel board usually, and it is comparatively convenient that the integral erection implements. A water stop structure can be arranged between the U-shaped steel groove and the cover plate 14 to ensure the sealing performance.
Manhole 15 is arranged on the top plate of the gallery at intervals along the length direction of the gallery, and the manhole 15 is provided with a top cover which can be detachably connected. The pipelines in the corridor can be conveniently overhauled through the manhole 15.
Claims (10)
1. A synthesize corridor arrangement structure for city flood diversion, including river course (1), its characterized in that: still including arranging flood diversion passageway (2) in the underground space of urban public land, the import of flood diversion passageway (2) communicates the upper reaches of river course (1), and the export of flood diversion passageway (2) communicates the low reaches of river course (1).
2. A comprehensive corridor arrangement for urban flood diversion according to claim 1, characterized in that: the height of the upper surface of the inlet bottom plate of the flood diversion channel (2) is higher than that of the upper surface of the outlet bottom plate of the flood diversion channel (2), and the upper surface of the bottom plate of the flood diversion channel (2) is integrally arranged in a slope shape along the length direction of the flood diversion channel (2).
3. A comprehensive corridor arrangement for urban flood diversion according to claim 1, characterized in that: the height of the upper surface of the inlet bottom plate of the flood diversion channel (2) is lower than that of the bottom surface of the river channel (1) at the inlet position of the flood diversion channel (2); the height of the upper surface of the outlet bottom plate of the flood diversion channel (2) is higher than that of the bottom surface of the river channel (1) at the outlet position of the flood diversion channel (2).
4. A comprehensive corridor arrangement for urban flood diversion according to claim 1, characterized in that: the flood diversion channel (2) is of a cast-in-place concrete structure, and the length of the flood diversion channel (2) is smaller than the length of the river channel (1) between the inlet position and the outlet position of the flood diversion channel (2).
5. A comprehensive corridor arrangement for urban flood diversion according to any one of claims 1 to 4, characterized in that: the rainwater storehouse and the rainwater pipe network are arranged in the underground space of the urban public land, the flood diversion channel (2) is also used as the rainwater storehouse, and the drainage end of the rainwater pipe network is communicated with the flood diversion channel (2) through the embedded sleeve (12).
6. A comprehensive corridor arrangement for urban flood diversion according to any one of claims 1 to 4, characterized in that: galleries for laying pipelines are arranged on one side or two sides of the flood diversion channel (2).
7. A comprehensive corridor arrangement for urban flood diversion according to claim 6, characterized in that: the corridor comprises a water supply and sewage bin (9), a power and communication cable bin (10) and a standby bin (11) which are sequentially arranged from top to bottom along the vertical direction.
8. A comprehensive corridor arrangement for urban flood diversion according to claim 6, characterized in that: the flood diversion channel (2) is provided with a part of segments and is positioned below the urban road (4), and the top of the flood diversion channel (2) is provided with an embedded pipeline or an embedded pipe groove (3) which transversely penetrates through the urban road (4) below the urban road (4) to serve as a pipeline street crossing channel.
9. A comprehensive corridor arrangement for urban flood diversion according to claim 8, characterized in that: the pre-buried tub of groove (3) is the U shaped steel groove of welding preparation, and the top in U shaped steel groove sets apron (14) that can dismantle the connection.
10. A comprehensive corridor arrangement for urban flood diversion according to claim 6, characterized in that: manhole (15) are arranged on the top plate of the gallery at intervals along the length direction of the gallery, and the manhole (15) is provided with a top cover which can be detachably connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911135298.6A CN110714443A (en) | 2019-11-19 | 2019-11-19 | Comprehensive corridor arrangement structure for urban flood diversion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911135298.6A CN110714443A (en) | 2019-11-19 | 2019-11-19 | Comprehensive corridor arrangement structure for urban flood diversion |
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| Publication Number | Publication Date |
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| CN110714443A true CN110714443A (en) | 2020-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911135298.6A Pending CN110714443A (en) | 2019-11-19 | 2019-11-19 | Comprehensive corridor arrangement structure for urban flood diversion |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112443024A (en) * | 2020-11-20 | 2021-03-05 | 华东师范大学 | Invisible reconstruction and reconstruction method for urban water network |
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2019
- 2019-11-19 CN CN201911135298.6A patent/CN110714443A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112443024A (en) * | 2020-11-20 | 2021-03-05 | 华东师范大学 | Invisible reconstruction and reconstruction method for urban water network |
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