Water conservancy road subgrade overflow port and overflowing facility
By designing drainage ditches, overflow wells, culverts, and spillways on the roadbed of water conservancy roads, the problem of poor drainage effect of traditional overflow wells has been solved, enabling rapid removal of road surface water and reducing the risk of urban flooding.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2026-03-27
AI Technical Summary
Traditional overflow wells are ineffective at draining water from roadbeds, causing water to accumulate on the road surface and potentially leading to traffic congestion.
Design a roadbed overflow outlet and flow passage facility for water conservancy, including a drainage ditch, overflow well, culvert, drainage channel and grassed swale. Through the synergistic effect of these components, the surface water on the road can be quickly discharged into the drainage system, thereby enhancing the drainage capacity.
It effectively reduces road surface water accumulation, increases drainage speed, lowers the risk of urban flooding, and enhances the ability of road drainage systems to cope with rainstorms.
Smart Images
Figure CN224047847U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to road engineering field, specifically, relate to a water conservancy road subgrade overflow port and flow facility. BACKGROUND
[0002] In modern city construction, the drainage system design of water conservancy road subgrade is important for guaranteeing city traffic safety and reducing flood disaster. With the acceleration of urbanization, the drainage problem of road subgrade is increasingly prominent, especially under heavy rain, the traditional drainage system is often difficult to cope with the rapid discharge of a large amount of rainwater, leading to road waterlogging and traffic paralysis.
[0003] As a new generation of urban rainwater management concept, the "sponge city" emphasizes that the city has good "elasticity" in adapting to environmental changes and dealing with natural disasters caused by rainwater, that is, "water-elastic city". The sponge city requires the city to be able to absorb, store, infiltrate and purify water when it rains, and to "release" and utilize the stored water when needed. The current national level has issued the "Sponge City Construction Technical Guidelines", which clearly defines the concept, control target and development requirements of the sponge city, marking that the ecological friendly construction method based on low impact development technology will become the development direction of future cities.
[0004] In the construction of sponge city, the rainwater overflow well plays a very important role in the overflow of sponge city rainwater, and is generally present in the interception combined drainage system and urban drainage engineering pump station system, and has the function of controlling water flow. However, the traditional overflow well has the problem of poor overflow drainage effect, especially on the water conservancy road subgrade, only a single overflow port, which causes the water on the road surface to be unable to be quickly drained away, and is easy to cause road waterlogging. UTILITARIAN CONTENT
[0005] The utility model aims at providing a water conservancy road subgrade overflow port and flow facility, which can quickly transfer the water on the road surface to the drainage system, reducing the possibility of road waterlogging.
[0006] The embodiment of the utility model is realized by the following technical scheme: a water conservancy road subgrade overflow port and flow facility, including a water collecting ditch, the water collecting ditch is arranged on the side of the pedestrian road, the top surface of the water collecting ditch is lower than the plane of the pedestrian road, an overflow well is arranged in the water collecting ditch, the overflow well is used for quickly draining the water in the water collecting ditch, the top end of the overflow well is higher than the top surface of the water collecting ditch, an overflow cover is arranged at the top end of the overflow well, a drainage pipe is communicated with the bottom end of the overflow well, and the drainage pipe is communicated to the flood discharge facility.
[0007] Further, a water passing culvert passage is arranged through the inside of the pedestrian road, a first end of the water passing culvert passage is communicated with the pedestrian road, and a second end of the water passing culvert passage is communicated with the water collecting ditch.
[0008] Further, a water draining passage is arranged on the side of the water passing culvert passage, the water draining passage is embedded in the ground, and a grass planting ditch is connected to an end of the water draining passage away from the water passing culvert passage.
[0009] Further, the water draining passage is a stainless steel pipe embedded in the ground.
[0010] Further, a flow guiding assembly is arranged on the side of the water draining passage communicated with the grass planting ditch, and the flow guiding assembly is used for dispersing water flow impact.
[0011] Further, the flow guiding assembly comprises a geotextile bag and gravel, the geotextile bag wraps a plurality of gravel, and the geotextile bag is arranged at the water outlet of the water draining passage.
[0012] Further, a concrete foundation cushion layer is arranged at the bottom of the overflow well.
[0013] Further, the thickness of the concrete foundation cushion layer is 80mm-150mm.
[0014] Further, a water seepage horizontal pipe is arranged at the bottom of the overflow well.
[0015] The technical scheme of the embodiment of the utility model has at least the following advantages and beneficial effects:
[0016] 1. The utility model discloses a water collecting ditch is arranged on the side of the pedestrian road, an overflow well is arranged in the water collecting ditch, and the water collecting ditch can collect and store the accumulated water on the pedestrian road and the vehicle road, so that the amount of accumulated water on the road surface is reduced, rainwater is discharged into the flood discharge facility through the overflow well, and the risk of urban waterlogging is reduced.
[0017] 2. The water passing culvert passage is arranged in the pedestrian road, and rainwater can be discharged into the water collecting ditch more quickly, so that the processing speed of the accumulated water on the road is improved.
[0018] 3. The water draining passage is arranged in the water passing culvert passage, so that the accumulated water flowing into the water draining passage flows to the grass planting ditch through the water draining passage, the discharge path of the rainwater is increased, and the drainage speed is improved. BRIEF DESCRIPTION OF DRAWINGS
[0019] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings used in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those skilled in the art, other related drawings can be obtained without creative labor on the basis of these drawings.
[0020] Figure 1 Fig. 1 is a schematic view of the water collecting ditch structure of the present application;
[0021] Figure 2 Fig. 2 is a planar layout diagram of the water-passing culvert passage in the pedestrian road for displaying in the present application;
[0022] Figure 3 Fig. 3 is a schematic view of the internal structure of the water-passing culvert passage for displaying in the present application;
[0023] Figure 4 Fig. 4 is an enlarged schematic view of part A in Fig. 3. Figure 1
[0024] Fig. 1 is a schematic view of the water collecting ditch structure of the present application; DETAILED DESCRIPTION
[0025] The drawings used in the embodiments of the present application will be briefly introduced as follows. Figures 1-4 The technical scheme in the embodiments of the present application is clearly and completely described. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.
[0026] It should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "back", "side", "circumferential" and the like indicated by the orientation or positional relationship shown in the drawings, are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the first, second, etc. words are only for distinguishing the same or similar structures of multiple components or structures, and do not represent a certain special limitation on the setting order or connection relationship.
[0027] A water conservancy road subgrade overflow port and flow facility, referring to Figure 1 and Figure 2 As shown, it comprises a water collecting ditch 100, which is arranged beside the pedestrian road 300, and the water collecting ditch 100 is lower than the plane of the road or the surrounding grassland, and a slope is arranged between the water collecting ditch 100 and the roadside. In the embodiment, the slope ratio is less than 1:3. The inside of the pedestrian road 300 is provided with a water passing culvert channel 200 for rapid drainage of the road, the first end of the water passing culvert channel 200 is arranged on the curbstone on the side of the pedestrian road 300 facing the vehicle road 400, and the second end of the water passing culvert channel 200 is arranged on the curbstone on the side of the pedestrian road 300 facing the water collecting ditch 100. The vehicle road 400 and the water collecting ditch 100 are connected, when the height of the street surface water reaches the height of the water passing culvert channel 200, the water flows into the water collecting ditch 100 through the water passing culvert channel 200, and the road surface water condition of the vehicle road 400 is relieved. The side of the water passing culvert channel 200 facing the pedestrian road 300 is provided with a rainwater grate cover plate 210, and the water on the surface of the pedestrian road 300 flows into the rainwater grate cover plate 210.
[0028] Referring to Figure 3As shown, the inside of the water passing culvert passage 200 is provided with a silt well 220 which is vertically provided for storing silt and sundries carried by the accumulated water. The bottom surface of the silt well 220 is provided with a concrete foundation cushion layer 221. Preferably, the thickness of the concrete foundation cushion layer 221 is 80mm-150mm. In the embodiment, the thickness of the concrete foundation cushion layer 221 is 100mm. The concrete foundation cushion layer 221 can increase the strength of the mechanism at the bottom of the silt well 220 and reduce the damage of sundries falling into the silt well 220 through the overflow cover 170 to other structures connected with the silt well 220. The side surface of the silt well 220 is communicated with a water discharge passage 230 for discharging the rainwater in the silt well 220 away from the road. The water discharge passage 230 is buried in the ground. The first end of the water discharge passage 230 is an inlet end communicated with the silt well 220. The height of the first end of the water discharge passage 230 is higher than the height of the bottom surface of the silt well 220. The second end of the water discharge passage 230 is a water outlet end. The height of the first end is higher than the height of the second end. The second end of the water discharge passage 230 extends and lays away from the road. When the height of the accumulated water flowing in the water passing culvert passage 200 reaches the height of the first end of the water discharge passage 230, the accumulated water flows away through the water discharge passage 230, reducing the drainage pressure of the water collecting ditch 100. In the embodiment, the water discharge passage 230 is a heterogeneous stainless steel square tube structure. The shape of the water discharge passage 230 matches the actual terrain.
[0029] Referring to Figure 3 As shown, the second end of the water discharge passage 230 is connected with a grass planting ditch 240. The water discharge passage 230 discharges the rainwater into the grass planting ditch 240. The height of the grass planting ditch 240 is lower than the height of the water collecting ditch 100. The grass planting ditch 240 is a soil layer structure. Plants are planted in the grass planting ditch 240. The plants have the effect of soil fixation.
[0030] Referring to Figure 3 As shown, a flow guide assembly 250 is connected between the water discharge passage 230 and the grass planting ditch 240. Specifically, the flow guide assembly 250 includes a geotextile bag 251 and a plurality of gravels 252. The plurality of gravels 252 are arranged in the geotextile bag 251. The geotextile bag 251 is arranged in a strip shape. One end of the strip-shaped geotextile bag 251 abuts against the second end of the water discharge passage 230. The other end of the geotextile bag 251 is buried in the bottom of the grass planting ditch 240. The geotextile bag 251 is used to limit the movement of the gravels 252. The geotextile bag 251 has good water permeability and high strength, which can well stabilize and limit the gravels 252 at the second end of the water discharge passage 230. The gravels 252 can disperse and reduce the impact force of the water flow on the soil layer of the grass planting ditch 240, which is conducive to avoiding the rainwater from washing away the soil of the grass planting ditch 240.
[0031] Referring to Figure 1As shown, the inside of the water collecting ditch 100 is paved with a planting soil layer 120, which can be used for planting green plants and absorbing rainwater, thereby achieving the effect of quickly draining the water collecting ditch 100. The main components of the planting soil layer 120 include planting soil, sand and coconut husk. The bottom of the planting soil layer 120 is a stone layer 130, which abuts against the bottom surface of the slope.
[0032] Referring to Figure 1 and Figure 4 As shown, the inside of the water collecting ditch 100 is vertically installed with an overflow well 140, the top end of which is higher than the surface of the water collecting ditch 100. The top end of the overflow well 140 is detachably installed with an overflow cover 170, which is in the shape of a simulated Taihu stone, so as to improve the aesthetic effect. The overflow cover 170 is provided with a plurality of blocking rods, between which a water passing gap is reserved for rainwater to flow into the overflow well 140. The top of the overflow well 140 is installed with a mounting seat 141, the inner side edge of which is provided with a receiving edge 142, the top surface of which is lower than the top surface of the overflow well 140. The size of the overflow cover 170 is adapted to the size of the receiving edge 142. The overflow cover 170 abuts against the receiving edge 142, and the overflow cover 170 clamps the opening of the overflow well 140. The overflow cover 170 and the top surface of the receiving edge 142 are connected by bolts. The well mouth of the overflow well 140 is paved with a gravel buffer layer 110, which is used for reducing the impact of rainwater on the overflow cover 170. The gravel buffer layer 110 is paved on the surface of the planting soil layer 120. In this embodiment, the thickness of the gravel buffer layer 110 is 15 cm, and the width is 30 cm.
[0033] Referring to Figure 1 As shown, the bottom of the overflow well 140 is also provided with a concrete foundation cushion layer 221, which is used for enhancing the strength of the bottom surface of the overflow well 140. Preferably, the thickness of the concrete foundation cushion layer 221 is 80-150 mm. In this embodiment, the thickness of the concrete foundation cushion layer 221 is 100 mm.
[0034] Referring to Figure 1As shown, the bottom of the overflow well 140 is communicated with a drain pipe 150, and the end of the drain pipe 150 away from the stone overflow well 140 is communicated with a river channel or other flood discharge facility, so that the rainwater flowing into the overflow well 140 flows to the river channel or other flood discharge facility through the drain pipe 150, thereby reducing the risk of urban waterlogging. The bottom of the overflow well 140 is also communicated with a water infiltration horizontal pipe 160, which is laid inside the stone layer 130. The water infiltration horizontal pipe 160 is provided with a plurality of water infiltration holes, which are formed on the bottom side of the water infiltration horizontal pipe 160. The height of the end of the water infiltration horizontal pipe 160 communicated with the overflow well 140 is higher than the height of the drain pipe 150, so as to avoid the river water flowing back to the water infiltration horizontal pipe 160 through the drain pipe 150. There are a plurality of water infiltration horizontal pipes 160, and the plurality of water infiltration horizontal pipes 160 are respectively buried underground in the water collection ditch 100. The plurality of water infiltration horizontal pipes 160 are buried in the bottom of the water collection ditch 100, and the water in the planting soil layer 120 is concentrated in the water infiltration horizontal pipe 160 through the water infiltration horizontal pipe 160, which is beneficial to reduce the water content in the planting soil layer 120 and improve the water absorption capacity of the water collection ditch 100. The rainwater in the water infiltration horizontal pipe 160 is discharged through the drain pipe 150. The end of the water infiltration horizontal pipe 160 away from the overflow well 140 is communicated with a vertical pipe 161. The first end of the vertical pipe 161 is communicated with the water infiltration horizontal pipe 160, the second end of the vertical pipe 161 penetrates the surface of the planting soil layer 120, and the height of the second end of the vertical pipe 161 is higher than that of the first end. The second end of the vertical pipe 161 is higher than the top end of the overflow well 140, and a rain cover is installed on the second end of the vertical pipe 161. When the water storage amount in the overflow well 140 exceeds the discharge flow of the drain pipe 150, the vertical pipe 161 can temporarily store the water, so as to avoid the rainwater from being concentrated and accumulated on the surface of the water collection ditch 100 due to over-flowing. At this time, the water infiltration holes in the water infiltration horizontal pipe 160 can infiltrate the internal water to the soil below, accelerate the discharge of the rainwater in the pipe, and reduce the drainage pressure of the drain pipe 150.
[0035] The working process of the embodiment is as follows: when there is less accumulated water on the surface of the vehicle road 400, the rainwater flows into the water discharge channel 230 through the water passing culvert channel 200, and the rainwater is discharged into the grass planting ditch 240 by the water discharge channel 230.
[0036] When there is more accumulated water on the surface of the vehicle road 400, the rainwater flows to the water discharge channel 230 through the water passing culvert channel 200, and also flows into the water collection ditch 100 arranged beside the pedestrian road 300. Since the plane of the water collection ditch 100 is lower than the pedestrian road 300 and the vehicle road 400, the rainwater can be collected in the water collection ditch 100, thereby reducing the severity of waterlogging of the pedestrian road 300 and the vehicle road 400.
[0037] Part of the water in the catchment ditch 100 is absorbed by permeating into the planting soil layer 120, and the water permeated into the planting soil layer 120 is guided into the drain pipe 150 through the water permeation horizontal pipe 160, so that the water is drained into the flood discharge facility such as a river.
[0038] Another part of the water in the catchment ditch 100 flows into the overflow well 140 through the overflow cover 170 and is directly drained into the flood discharge facility such as a river through the drain pipe 150.
[0039] The above is only used to illustrate the technical scheme of the present application and is not limited, and other modifications or equivalent replacements of the technical scheme of the present application made by those skilled in the art should be covered in the scope of the claims of the present application as long as they do not deviate from the spirit and scope of the technical scheme of the present application.
Claims
1. A water conservancy road subgrade overflow port and flow facility, characterized in that: The utility model provides a kind of water drainage system, including water collecting ditch (100), the water collecting ditch (100) is arranged in the side of pedestrian road (300), the top surface of the water collecting ditch (100) is lower than the plane of pedestrian road (300), overflow well (140) is provided in the water collecting ditch (100), the overflow well (140) is used to quickly discharge the accumulated water in the water collecting ditch (100), the top end of the overflow well (140) is higher than the top surface of the water collecting ditch (100), the top end of the overflow well (140) is provided with overflow cover (170), the bottom end of the overflow well (140) is communicated with drain pipe (150), the drain pipe (150) is communicated to flood discharge facility.
2. The waterway and flow facility for a waterway roadbed according to claim 1, characterized in that: Water passing through the inside of pedestrian road (300) is provided with water passing through culvert channel (200), the first end of the water passing through culvert channel (200) is communicated pedestrian road (300), the second end of the water passing through culvert channel (200) is communicated the water collecting ditch (100).
3. The waterway and flow facility for a waterway roadbed according to claim 2, characterized in that: The side of the water passing through culvert channel (200) is provided with water discharge channel (230), the water discharge channel (230) is buried in ground, the end of the water discharge channel (230) away from the water passing through culvert channel (230) is connected with grassed swale (240).
4. The waterway and flow facility for a waterway roadbed according to claim 3, characterized in that: The water discharge channel (230) is stainless steel pipe pre-buried in ground.
5. The waterway and flow facility for a waterway roadbed according to claim 3, characterized in that: The side of the water discharge channel (230) communicated grassed swale (240) is provided with flow guide assembly (250), and the flow guide assembly (250) is used to disperse water flow impact.
6. The waterway and flow facility for a waterway roadbed according to claim 5, characterized in that: The flow guide assembly (250) includes geotextile bag (251) and gravel (252), the geotextile bag (251) is wrapped several gravels (252), and the geotextile bag (251) is arranged to the water outlet of the water discharge channel (230).
7. The waterway and flow facility for roadways and roadbeds of claim 1, wherein: The bottom of the overflow well (140) is provided with concrete foundation cushion layer (221).
8. The waterway and flow facility for a waterway roadbed according to claim 7, characterized in that: The thickness of the concrete foundation cushion layer (221) is 80mm-150mm.
9. The waterway and flow facility for roadways and roadbeds of claim 1, wherein: The bottom of the overflow well (140) is provided with water seepage cross pipe (160), and the water seepage cross pipe (160) is arranged in the inside of the water collecting ditch (100).