Combined drainage structure

Abstract

The utility model discloses a combined drainage structure which comprises a permeable pavement layer, a permeable pavement layer, a drainage pipe gallery and a drainage blind pipe, the permeable pavement layer is arranged on the permeable pavement layer, the drainage blind pipe is arranged in the permeable pavement layer, the drainage pipe gallery is arranged at the edges of the permeable pavement layer and the permeable pavement layer, and the drainage blind pipe is arranged in the permeable pavement layer. A partition plate is arranged in the drainage pipe gallery and divides the inner space of the drainage pipe gallery into a first channel and a second channel, water permeable holes are formed in the pipe wall of the drainage blind pipe, a pipe opening of the drainage blind pipe is connected with the first channel, and the drainage blind pipe is in an inclined state. The closed end of the drainage blind pipe is located above a pipe opening of the drainage blind pipe, a filter screen is arranged on the partition plate, and the first channel and the second channel are located on the two sides of the filter screen respectively. The structure has the following beneficial effects that the drainage blind pipes and the drainage pipe gallery are used in a combined mode, and the probability of pavement ponding and waterlogging is reduced.

Description

Technical Field

[0001] The utility model relates to the field of road drainage facilities, in particular to a combined drainage structure. Background Art

[0002] During road construction, drainage is an issue that deserves great attention in the project. The current common pavement drainage structure is shown in the patent publication document CN212926387U. In this roadbed drainage structure, the pavement must be built to be inclined from the middle to the edge, otherwise rainwater cannot be smoothly discharged into the drainage ditch. Utility Model Content

[0003] Aiming at the above problems, the utility model proposes a combined drainage structure.

[0004] The technical solution adopted by the utility model is as follows:

[0005] A combined drainage structure comprises a permeable roadbed, a permeable pavement layer, a drainage pipe gallery and a drainage blind pipe, wherein the permeable pavement layer is arranged on the permeable roadbed, the drainage blind pipe is arranged in the permeable roadbed, the drainage pipe gallery is arranged at the edge of the permeable roadbed and the permeable pavement layer, a partition is arranged in the drainage pipe gallery, the partition divides the internal space of the drainage pipe gallery into a first channel and a second channel, a water-permeable hole is opened on the pipe wall of the drainage blind pipe, the pipe mouth of the drainage blind pipe is connected to the first channel, the drainage blind pipe is in an inclined state, the closed end of the drainage blind pipe is located above the pipe mouth of the drainage blind pipe, a filter screen is arranged on the partition, and the first channel and the second channel are respectively located on both sides of the filter screen, and a grille cover is arranged on the drainage pipe gallery, and the grille cover is located above the first channel.

[0006] The working principle of this drainage structure is as follows: first, the grille cover is flush with the permeable pavement layer. When it rains (or other forms of precipitation), most of the rainwater (along with branches, silt and fallen leaves) falls into the first channel through the grille cover, and the silt and fallen leaves are deposited at the bottom of the first channel. When the liquid level in the first channel is not high, the water in the first channel will not overflow into the second channel. When the liquid level in the first channel is high, the liquid in the first channel is filtered through the filter net and discharged into the second channel. This design reduces the phenomenon of drainage corridors flowing back to the ground during heavy rain to a certain extent, and reduces the probability of waterlogging. When it is necessary to clean up the silt, just open the grille cover to clean up the silt in the first channel.

[0007] At the same time, in this drainage structure, the permeable road base layer and the permeable pavement layer both have a certain degree of permeability. When a small portion of rainwater infiltrates into the drainage blind pipe, it can flow into the first channel through the diversion effect of the drainage blind pipe.

[0008] Also, since the drainage blind pipe is in an inclined state, the closed end of the drainage blind pipe is located above the drainage blind pipe opening, so that the drainage blind pipe acts as a simple water reservoir. In this way, when it rains heavily, part of the water in the first channel can overflow into the drainage blind pipe, which also reduces the probability of the drainage pipe gallery spraying water onto the ground.

[0009] In this structure, even if the road surface is not inclined, water on the road surface can still be smoothly discharged into the first channel, thereby avoiding the possibility of water accumulation on the road surface.

[0010] In summary, this structure reduces the probability of road waterlogging and waterlogging by combining the use of drainage blind pipes and drainage corridors.

[0011] Optionally, the pipe openings of the rows of blind pipes are connected to the reserved interfaces of the drainage gallery, and the filter screen is arranged on the overflow port of the partition.

[0012] Optionally, a permeable geotextile is wrapped around the outer pipe wall of the drainage blind pipe.

[0013] The function of permeable geotextile is to filter and protect drainage blind pipes, reducing the probability of blockage of drainage blind pipes.

[0014] Optionally, a partition piece is provided in the drainage blind pipe, and the partition piece consists of three pieces, and the three partition pieces are connected to each other, and the three partition pieces divide the space in the drainage blind pipe into three parts.

[0015] Optionally, the drainage blind pipe is a circular drainage blind pipe, and the connection point formed at the junction of the three partition pieces is the central axis of the drainage blind pipe.

[0016] The partition piece can support the wall of the drainage blind pipe and reduce the probability of the wall of the drainage blind pipe breaking. Secondly, it can separate the space inside the drainage blind pipe and divide it into three independent small pipes, which can reduce the probability of the drainage blind pipe being completely blocked.

[0017] Optionally, two ends of the drainage corridor are respectively arranged at a splicing main port and a splicing secondary port.

[0018] Specifically, two adjacent drainage pipe galleries are overlapped together by cooperating with each other through the splicing of the main opening and the splicing of the secondary opening. Several sections of drainage pipe galleries are overlapped together to form the drainage system of the entire road.

[0019] The beneficial effect of the utility model is that the probability of road surface waterlogging and waterlogging is reduced by using the drainage blind pipe and the drainage pipe gallery in combination. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the combined drainage structure;

[0021] Figure 2 It is a schematic diagram of the internal structure of the drainage blind pipe;

[0022] Figure 3 This is a schematic diagram of the locations of the spliced ​​main outlet and the spliced ​​secondary outlet on the drainage corridor.

[0023] The reference numerals in the figure are: 1, permeable pavement layer; 2, permeable road base layer; 3, permeable geotextile; 4, drainage blind pipe; 401, pipe mouth; 5, drainage pipe gallery; 51, partition; 501, overflow port; 502, reserved interface; 5031, first channel; 5032, second channel; 6, grille cover; 7, filter screen; 8, soil; 9, partition piece; 1001, splicing main port; 1002, splicing secondary port. DETAILED DESCRIPTION

[0024] The utility model is described in detail below in conjunction with the accompanying drawings.

[0025] As attached Figure 1 , Attachment Figure 2 And attached Figure 3 As shown, a combined drainage structure includes a permeable roadbed layer 2, a permeable pavement layer 1, a drainage pipe gallery 5 and a drainage blind pipe 4. The permeable pavement layer 1 is arranged on the permeable roadbed layer 2, the drainage blind pipe 4 is arranged in the permeable roadbed layer 2, the drainage pipe gallery 5 is arranged at the edge of the permeable roadbed layer 2 and the permeable pavement layer 1, a partition 51 is arranged in the drainage pipe gallery 5, and the partition 51 divides the internal space of the drainage pipe gallery 5 into a first channel 5031 and a second channel 5032. A water-permeable hole is opened on the pipe wall of the drainage blind pipe 4, the pipe mouth 401 of the drainage blind pipe 4 is connected to the first channel 5031, the drainage blind pipe 4 is in an inclined state, and the closed end of the drainage blind pipe 4 is located above the pipe mouth 401 of the drainage blind pipe 4, a filter screen 7 is arranged on the partition 51, and the first channel 5031 and the second channel 5032 are respectively located on both sides of the filter screen 7, and a grille cover plate 6 is arranged on the drainage pipe gallery 5, and the grille cover plate 6 is located above the first channel 5031.

[0026] The working principle of this drainage structure is as follows: first, the grille cover 6 is flush with the permeable pavement layer 1. When it rains (or other forms of precipitation), most of the rainwater (with branches, silt and fallen leaves) falls into the first channel 5031 through the grille cover 6. The silt and fallen leaves are deposited at the bottom of the first channel 5031. When the liquid level in the first channel 5031 is not high, the water in the first channel 5031 will not overflow into the second channel 5032. When the liquid level in the first channel 5031 is high, the liquid in the first channel 5031 is filtered by the filter 7 and enters the second channel 5032 for drainage. This design reduces the phenomenon of the drainage corridor 5 flowing back to the ground during heavy rain to a certain extent, and reduces the probability of waterlogging. When it is necessary to clean the silt, just open the grille cover 6 to clean the silt in the first channel 5031.

[0027] At the same time, in this drainage structure, the permeable road base layer 2 and the permeable pavement layer 1 have a certain degree of permeability. When a small part of rainwater seeps into the drainage blind pipe 4, it can flow into the first channel 5031 through the diversion effect of the drainage blind pipe 4.

[0028] Similarly, since the drainage blind pipe 4 is in an inclined state, the closed end of the drainage blind pipe 4 is located above the pipe opening 401 of the drainage blind pipe 4, so that the drainage blind pipe 4 is equivalent to playing the role of a simple water reservoir. In this way, when it rains heavily, a part of the water in the first channel 5031 can overflow into the drainage blind pipe 4, which also reduces the probability of the drainage pipe gallery 5 spraying water onto the ground.

[0029] In this structure, even if the road surface is not inclined, water on the road surface can still be smoothly discharged into the first channel 5031, thereby avoiding the possibility of water accumulation on the road surface.

[0030] In summary, this structure reduces the probability of road surface waterlogging and waterlogging by combining the drainage blind pipe 4 and the drainage pipe gallery 5.

[0031] As attached Figure 1 , Attachment Figure 2 And attached Figure 3 As shown, the pipe opening 401 of the row of blind pipes is connected to the reserved interface 502 of the drainage pipe gallery 5, and the filter screen 7 is arranged on the overflow port 501 of the partition plate 51.

[0032] As attached Figure 1 , Attachment Figure 2 And attached Figure 3 As shown, a permeable geotextile 3 is wrapped around the outer wall of the drainage blind pipe 4.

[0033] The function of the permeable geotextile 3 is to filter and protect the drainage blind pipe 4, thereby reducing the probability of the drainage blind pipe 4 being blocked.

[0034] As attached Figure 1, Attachment Figure 2 And attached Figure 3 As shown, a partition piece 9 is provided in the drainage blind pipe 4. The partition piece 9 consists of three pieces, and the three partition pieces 9 are connected. The three partition pieces 9 divide the space in the drainage blind pipe 4 into three parts.

[0035] As attached Figure 1 , Attachment Figure 2 And attached Figure 3 As shown, the drainage blind pipe 4 is a circular drainage blind pipe 4 , and the phase connection formed at the connection of the three partition pieces 9 is the central axis of the drainage blind pipe 4 .

[0036] The partition piece 9 can support the wall of the drainage blind pipe 4 to reduce the probability of the wall of the drainage blind pipe 4 breaking, and can also separate the space inside the drainage blind pipe 4 into three independent small pipes, thereby reducing the probability of the drainage blind pipe 4 being completely blocked.

[0037] As attached Figure 1 , Attachment Figure 2 And attached Figure 3 As shown, two ends of the drainage pipe gallery 5 are respectively arranged at a splicing main port 1001 and a splicing secondary port 1002 .

[0038] Specifically, two adjacent drainage pipe galleries 5 are overlapped together by cooperating with each other through the splicing main opening 1001 and the splicing secondary opening 1002, and several sections of drainage pipe galleries 5 are overlapped together to form the drainage system of the entire road.

[0039] The above description is only a preferred embodiment of the present invention, and does not limit the patent protection scope of the present invention. Any equivalent transformations made using the contents of the present invention specification, directly or indirectly used in other related technical fields, are also included in the protection scope of the present invention.

Claims

1. A combined drainage structure, characterized in that: It includes a permeable roadbed, a permeable pavement layer, a drainage pipe gallery and a drainage blind pipe. The permeable pavement layer is arranged on the permeable roadbed, the drainage blind pipe is arranged in the permeable roadbed, the drainage pipe gallery is arranged at the edges of the permeable roadbed and the permeable pavement layer, a partition is arranged in the drainage pipe gallery, the partition divides the internal space of the drainage pipe gallery into a first channel and a second channel, a water-permeable hole is opened on the pipe wall of the drainage blind pipe, the pipe mouth of the drainage blind pipe is connected to the first channel, the drainage blind pipe is in an inclined state, the closed end of the drainage blind pipe is located above the pipe mouth of the drainage blind pipe, a filter is arranged on the partition, and the first channel and the second channel are respectively located on both sides of the filter, and a grille cover is arranged on the drainage pipe gallery, and the grille cover is located above the first channel.

2. The combined drainage structure according to claim 1, characterized in that: The pipe opening of the drainage blind pipe is connected to the reserved interface of the drainage pipe gallery, and the filter screen is arranged on the overflow port of the partition.

3. The combined drainage structure according to claim 1, characterized in that: The outer pipe wall of the drainage blind pipe is wrapped with a permeable geotextile.

4. The combined drainage structure according to claim 1, characterized in that: A partition piece is arranged in the drainage blind pipe, and the partition piece consists of three pieces, and the three partition pieces are connected, and the three partition pieces divide the space in the drainage blind pipe into three parts.

5. The combined drainage structure according to claim 4, characterized in that: The drainage blind pipe is a circular drainage blind pipe, and the connection point formed by the connection of the three partition pieces is the central axis of the drainage blind pipe.

6. The combined drainage structure according to claim 1, characterized in that: The two ends of the drainage pipe gallery are respectively arranged at a splicing main port and a splicing secondary port.

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