CN218028047U - Drop type connecting device for connecting open ditch and concealed pipe of airport - Google Patents
Drop type connecting device for connecting open ditch and concealed pipe of airport Download PDFInfo
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- CN218028047U CN218028047U CN202221593417.XU CN202221593417U CN218028047U CN 218028047 U CN218028047 U CN 218028047U CN 202221593417 U CN202221593417 U CN 202221593417U CN 218028047 U CN218028047 U CN 218028047U
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- drainage
- partition wall
- overflow partition
- connecting device
- filtering component
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- 238000001914 filtration Methods 0.000 claims abstract description 43
- 238000005192 partition Methods 0.000 claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 14
- 239000012535 impurity Substances 0.000 claims abstract description 12
- 238000012423 maintenance Methods 0.000 claims abstract description 5
- 239000004576 sand Substances 0.000 claims 2
- 230000021715 photosynthesis, light harvesting Effects 0.000 abstract description 10
- 230000007704 transition Effects 0.000 abstract description 5
- 238000009412 basement excavation Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 4
- 239000002689 soil Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 229910001141 Ductile iron Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
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Abstract
A drop type connecting device for connecting an open ditch and a concealed conduit of an airport relates to the technical field of airport drainage. The upstream of the utility model is connected with the open drain, and the downstream is connected with the downstream drainage hidden pipe through the waterproof sleeve; the connecting device comprises a maintenance cover plate, an overflow partition wall and a filtering component; the overflow partition wall is vertically arranged in the middle of the joint between the open drain and the underground drain, the filtering component is positioned between the overflow partition wall and the upstream open drain, the lower part of the overflow partition wall is provided with a water permeable hole, an interception grid is arranged between the water permeable hole and the filtering component, and the overhauling cover plate horizontally covers the top end of the connecting device and is flush with the ground surface; the filtering component is used for intercepting and filtering rainwater, and the overflow partition wall can be used for drop energy dissipation. The utility model can avoid the excavation and paving required by the terrain transition; inside sets up the filtration impurity that filtering component can be better, reduces the blind pipe of low reaches drainage and blocks up the risk, and when the flow was great, rivers leap over overflow partition wall row to the blind pipe of low reaches drainage after the energy dissipation.
Description
Technical Field
The utility model belongs to the technical field of the airport drainage technique and specifically relates to a drop type connecting device that is used for airport open drain concealed conduit to meet.
Background
In the airport drainage design process, because of the drainage ditch cross sectional dimension is great, the off-sectional design of airport drainage ditch needs to set the velocity of flow in reasonable within range with the depth of water, neither can lead to the depth of water to increase because of the velocity of flow is slow to take place the overflow, also can not wash away ditch (pipe) wall because of the velocity of flow is too fast. Influenced by the terrain conditions, the upper and lower drainage ditches and pipes are easy to have the problems of large height difference of ditches and pipes on the connection section and cannot be naturally connected along a certain slope. In order to avoid downstream scouring caused by overlarge fall (the height difference between the open drain and the drain is more than 1m when the open drain is connected with the drain concealed pipe), the transition can be carried out by utilizing the terrain slope. The current standard requires that the paving length of a transition section with light and dark connection needs to be 3-8m, and the top of a concealed conduit needs to be provided with a retaining end wall, so that the method needs the engineering excavation amount of a larger section, and the engineering investment is increased; on the other hand, measures such as a drop well and auxiliary silt settling can be arranged to achieve reasonable transition of water flow at a connection section, although the method can reduce engineering excavation amount to a certain degree, impurities cannot be well treated through conventional drop measures, local silting is easily caused, and then the inlet of a downstream drainage concealed pipe is blocked, and later-stage operation and maintenance cost is increased. It can be seen that both of the above methods result in increased engineering investment or local drainage difficulties due to blockage. Therefore, aiming at the drainage connection at the open (ditch) and the dark (ditch) of the airport, which is influenced by the terrain, the system has the characteristics of energy dissipation, filtration, economy and the like, so as to meet the requirements of water depth and flow velocity at the light and dark connection part, and simultaneously can filter and recover rainwater, thereby embodying the construction concept of the four-type airport.
Disclosure of Invention
The utility model provides a drop type connecting device that is used for airport open drain concealed pipe to meet possesses energy dissipation, filterable open drain concealed pipe drop type connecting device, aims at solving the downstream that the open drain concealed pipe links up the great lead to of sectional elevation difference and erodees, blocking phenomenon, and then reduces the engineering investment.
The utility model discloses a drop type connecting device for connecting an airport open ditch concealed pipe, which is arranged at the joint between an upstream drainage open ditch and a downstream drainage concealed pipe, wherein the upstream drainage open ditch is connected with the upstream, and the downstream drainage concealed pipe is connected with the downstream drainage concealed pipe through a waterproof sleeve; it is characterized in that the connecting device comprises an overhauling cover plate, an overflow partition wall and a filtering component; the overflow partition wall is vertically arranged in the middle of the joint between the open drain and the underground drain, the filtering component is positioned between the overflow partition wall and the upstream open drain, the lower part of the overflow partition wall is provided with a water permeable hole, an interception grid is arranged between the water permeable hole and the filtering component, and the overhauling cover plate horizontally covers the top end of the connecting device and is flush with the ground surface; the filtering component is used for intercepting and filtering rainwater, and the overflow partition wall can be used for drop energy dissipation.
The filtering component is connected with the outer wall of the upstream drainage ditch and the overflow partition wall, the structure is sequentially provided with an impurity interception area, a gravel filtering layer and a sandstone filtering layer from top to bottom, and the interception grille is arranged at the water permeable hole at the lower part of the overflow partition wall.
The gravel filter layer is filled with gravels with the diameter of 30-50mm, the gravel filter layer is filled with gravels with the diameter of 5mm, and the diameter of the water permeable hole is not more than that of the drainage concealed pipe.
In the early stage of rainfall, the rainfall is small, the rainwater contains a large amount of impurities, and after being collected by a drainage ditch, the rainwater is trapped by a filtering assembly in the drop type connecting device and then is drained to a downstream drainage hidden pipe; in the middle and later periods of rainfall, the rainfall and the flow rate are large, and the rainwater passes through the filtering component, jumps over the overflow partition wall, is discharged to a downstream drainage concealed pipe after energy dissipation.
The utility model provides a drop type connecting device for connecting airport open ditches and concealed pipes, which has simple structure, scientific design and convenient use, and has the energy dissipation function, can avoid excavation and paving required by terrain transition, and effectively reduces the engineering investment; the filtering component is arranged in the rainwater collecting device, so that impurities can be better filtered, the risk of blocking a downstream drainage concealed pipe is reduced, and meanwhile, the quality of collected rainwater is improved; the applicability is strong, and when the flow is small, the impurities can be intercepted by the water flow carrying the impurities through the filtering component; when the flow is large, the water flow jumps over the overflow partition wall, is discharged to the downstream drainage concealed pipe after energy dissipation.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the filter assembly.
The water-saving sewage treatment system comprises a drainage open ditch 1, a drainage concealed pipe 2, an overhauling cover plate 3, an overflow partition wall 4, an intercepting grid 5, an impurity intercepting area 6, a gravel filtering layer 7, a gravel filtering layer 8 and a soil covering layer 9.
Detailed Description
Example 1: a drop type connecting device for connecting an open ditch and a hidden pipe of an airport is arranged at the joint between an upstream drainage open ditch 1 and a downstream drainage hidden pipe 2, the upstream drainage open ditch 1 is connected, and the downstream drainage hidden pipe 2 is connected through a waterproof sleeve; the connecting device comprises an access cover plate 3, an overflow partition wall 4 and a filtering component; the overflow partition wall 4 is vertically arranged in the middle of the joint between the open drainage ditch 1 and the hidden drainage pipe 2, the filtering component is positioned between the overflow partition wall 4 and the upstream open drainage ditch 1, the lower part of the overflow partition wall 4 is provided with a water permeable hole, an interception grid 5 is arranged between the water permeable hole and the filtering component, and the access cover plate 3 horizontally covers the top end of the connecting device and is level with the ground surface; the filtering component is used for intercepting and filtering rainwater, and the overflow partition wall 4 can be used for drop energy dissipation. The filtering component is connected with the outer wall of the upstream drainage ditch and the overflow partition wall 4, and is structurally provided with an impurity interception area 6, a gravel filtering layer 777 and a gravel filtering layer 88 from top to bottom in sequence, and the interception grille 5 is arranged at the water permeable hole at the lower part of the overflow partition wall 4. The gravel filtering layer 7 is filled with gravels with the diameter of 30-50mm, the gravel filtering layer 8 is filled with gravels with the diameter of 5mm, and the diameter of the water permeable holes is not more than that of the drainage concealed pipe 2. The maintenance cover plate 3 is made of nodular cast iron, and when the connecting device is located in the airport lifting belt leveling area, the stability of the maintenance cover plate 3 needs to be calculated and the airplane load needs to be considered. The downstream drainage hidden pipe 2 is provided with a covering soil layer 9, and the covering soil layer 9 is usually larger than 70cm.
In the early stage of rainfall, the rainfall is small, the rainwater contains a large amount of impurities, and after being collected by a drainage ditch, the rainwater is trapped by a filtering component in the drop type connecting device and then is drained to a downstream drainage concealed pipe 2; in the middle and later periods of rainfall, the rainfall and the flow rate are large, and the rainwater passes through the filtering component, jumps over the overflow partition wall 4, and is discharged to the downstream drainage concealed pipe 2 after energy dissipation.
Claims (3)
1. A drop type connecting device for connecting an open ditch and a hidden pipe of an airport is arranged at the joint between an upstream drainage open ditch (1) and a downstream drainage hidden pipe (2), the upstream drainage open ditch (1) is connected, and the downstream drainage hidden pipe (2) is connected through a waterproof sleeve; it is characterized in that the connecting device comprises a maintenance cover plate (3), an overflow partition wall (4) and a filtering component; the overflow partition wall (4) is vertically arranged at the middle position of the joint between the open drainage ditch (1) and the hidden drainage pipe (2), the filtering component is positioned between the overflow partition wall (4) and the upstream open drainage ditch (1), the lower part of the overflow partition wall (4) is provided with a water permeable hole, an interception grid (5) is arranged between the water permeable hole and the filtering component, and the access cover plate (3) horizontally covers the top end of the connecting device and is flush with the ground surface.
2. The drop-type connecting device for connecting the open ditches and the concealed pipes of the airports according to claim 1, wherein the filtering component comprises an impurity interception area (6), a gravel filtering layer (7), a sand filtering layer (8) and an interception grid (5), the impurity interception area (6), the gravel filtering layer (7) and the sand filtering layer (8) are sequentially arranged on the filtering component from top to bottom, and the interception grid (5) is arranged at the water permeable hole at the lower part of the overflow partition wall (4).
3. The drop type connecting device for connecting the open trench hidden pipes of the airport according to claim 2, characterized in that the gravel filter layer (7) is filled with gravel with the diameter of 30-50mm, the gravel filter layer (8) is filled with gravel with the diameter of 5mm, and the diameter of the water permeable holes is not larger than that of the drainage hidden pipes (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221593417.XU CN218028047U (en) | 2022-06-24 | 2022-06-24 | Drop type connecting device for connecting open ditch and concealed pipe of airport |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221593417.XU CN218028047U (en) | 2022-06-24 | 2022-06-24 | Drop type connecting device for connecting open ditch and concealed pipe of airport |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218028047U true CN218028047U (en) | 2022-12-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221593417.XU Active CN218028047U (en) | 2022-06-24 | 2022-06-24 | Drop type connecting device for connecting open ditch and concealed pipe of airport |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218028047U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116378185A (en) * | 2023-03-29 | 2023-07-04 | 中国电建集团昆明勘测设计研究院有限公司 | Airport slope rainwater recycling method |
-
2022
- 2022-06-24 CN CN202221593417.XU patent/CN218028047U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116378185A (en) * | 2023-03-29 | 2023-07-04 | 中国电建集团昆明勘测设计研究院有限公司 | Airport slope rainwater recycling method |
| CN116378185B (en) * | 2023-03-29 | 2025-09-09 | 中国电建集团昆明勘测设计研究院有限公司 | Airport slope rainwater recycling method |
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