Sponge city road rapid drainage structure

Abstract

The utility model relates to city drainage technical field, and disclose sponge city road rapid drainage structure, including soil layer, the soil layer still includes rapid drainage module, and this module includes: pebble water seepage layer, the pebble water seepage layer evenly lays in the inside of soil layer, water seepage pipeline, the water seepage pipeline evenly fixedly installed in the inside of pebble water seepage layer, the water seepage pipeline and the water seepage pipeline and the surface of confluence pipe all have non -woven cloth, rainwater sedimentation tank, rainwater sedimentation tank fixedly installed in the underground of soil layer, the end of confluence pipe extends to the inside of rainwater sedimentation tank. Through setting pebble water seepage layer, water seepage pipeline, confluence pipe and rainwater sedimentation tank, can make the road surface rainwater in short time and quickly import into the underground sedimentation tank, not only avoided the road surface ponding and local ponding point's emergence, and can effectively shunt rainwater, alleviate city pipe network pressure.

Description

Technical Field

[0001] This utility model relates to the field of urban drainage technology, and more specifically to a rapid drainage structure for sponge city roads. Background Technology

[0002] Existing urban roads generally suffer from poor drainage during heavy rains, severe road flooding, and direct discharge of rainwater mixed with silt, leading to water pollution. This not only affects traffic safety but also restricts the reuse of urban water resources. The "sponge city" concept, proposed in recent years, emphasizes the use of optimized road structures and rainwater management systems to achieve rapid road drainage, silt deposition, and rainwater collection and utilization, thereby balancing flood control and ecological benefits. However, most existing technical solutions only use a single infiltration structure and lack systematic sedimentation, filtration, and reinjection measures, resulting in easy pipe blockage, insufficient sedimentation, and low water utilization efficiency. Summary of the Invention

[0003] In order to overcome the above-mentioned defects of the prior art, this utility model provides a rapid drainage structure for sponge city roads to solve the problems existing in the background art.

[0004] This utility model provides the following technical solution: a rapid drainage structure for sponge city roads, comprising a soil layer, a road surface reinforcement layer disposed at the top of the soil layer, steel reinforcement supports disposed inside the road surface reinforcement layer, and an asphalt pavement laid on top of the road surface reinforcement layer. The soil layer also includes a rapid drainage module, and the module comprises: A pebble permeable layer, wherein the pebble permeable layer is evenly laid inside the soil layer and its top is higher than the height of the soil layer; The seepage pipes are uniformly and fixedly installed inside the pebble seepage layer. The seepage pipes and the pebble seepage layer are at a 15-degree angle. Multiple seepage holes are uniformly opened at the top of the seepage pipes. The manifold is fixedly connected to multiple seepage pipes, and the outer surfaces of both the seepage pipes and the manifold are covered with non-woven fabric. A rainwater sedimentation tank is fixedly installed underground in the soil layer, and the end of the manifold extends into the interior of the rainwater sedimentation tank. By setting up a pebble infiltration layer, infiltration pipes, a manifold, and a rainwater sedimentation tank, rainwater from the road surface can infiltrate and quickly be guided into the underground sedimentation tank in a short time. This not only avoids the occurrence of road surface water accumulation and local waterlogging points, but also effectively diverts rainwater, reduces the pressure on the urban pipe network, and thus solves the problem of poor drainage and waterlogging on existing roads during heavy rainfall, ensuring the safety and continuity of road traffic.

[0005] Furthermore, multiple rainwater guide plates are fixedly installed at the bottom of the rainwater sedimentation tank, with each guide plate forming a 30-degree angle with the sedimentation tank. A sludge discharge valve is fixedly installed on one side of the sedimentation tank. By installing rainwater guide plates and a sludge discharge valve at the bottom of the sedimentation tank, sediment can settle at the bottom and be periodically discharged, preventing sludge accumulation from affecting subsequent drainage and ensuring the cleanliness of the water in the tank. This further improves the reliability of rainwater reuse and solves the problem of inefficient sediment discharge in traditional sedimentation tanks.

[0006] Furthermore, a guide pipe is fixedly installed on the rainwater sedimentation tank, and a water pump is installed at the connection between the guide pipe and the rainwater sedimentation tank. A filter tank is fixedly installed at the end of the guide pipe, and a composite filter element is fixedly installed inside the filter tank. The composite filter element is composed of multiple layers of sand and activated carbon. By setting up a guide pipe and adding a water pump between the rainwater sedimentation tank and the filter tank, it is possible to ensure that the settled rainwater is smoothly transported to the filter tank, and then undergoes deep purification through the multiple layers of sand and activated carbon in the composite filter element. This achieves the effect of removing suspended particles, adsorbing organic impurities and odors, which not only improves the quality of rainwater purification, but also makes rainwater usable for further utilization, solving the problems of poor water quality and low utilization rate in rainwater collection systems.

[0007] Furthermore, a water storage tank is fixedly installed on one side of the composite filter element via a pipe. The water storage tank is located underground in the soil layer. A water level sensor is fixedly installed on the water storage tank, with its detection head extending to the bottom of the tank. A water intake valve is fixedly installed on one side of the water storage tank, and this valve is connected to an external water pipe. By installing a water level sensor and a water intake valve in the water storage tank, the water level can be monitored in real time, and automatic adjustment and discharge can be performed according to different water levels. This avoids water overflow causing damage to the surrounding environment and ensures a stable water supply from the water intake network, thus solving the problem of traditional rainwater harvesting devices lacking dynamic monitoring and adjustment capabilities.

[0008] Furthermore, a recharge well is naturally connected to one side of the reservoir via a pipe, and the recharge well is connected to the groundwater in the soil layer. By setting up a recharge well at the top of the reservoir and connecting it to the groundwater in the soil layer, some of the clean water can be naturally recharged back into the ground after rainwater purification, which can replenish groundwater resources and improve soil moisture content. At the same time, it takes into account ecological cycle and environmental sustainability, thereby solving ecological problems such as groundwater level decline and soil drying caused by urban development.

[0009] Furthermore, water diversion channels are fixedly installed on both sides of the asphalt pavement, and these channels are all positioned above the pebble permeable layer. Multiple anti-clogging grilles are also fixedly installed on each water diversion channel. By installing water diversion channels and anti-clogging grilles on both sides of the asphalt pavement, large particles and debris can be effectively intercepted during the initial rainwater runoff stage, preventing them from entering the pebble permeable layer and seepage pipes and causing blockages. This also facilitates later cleaning and maintenance, thus solving the problems of traditional rainwater harvesting systems, such as high maintenance difficulty and susceptibility to blockages, and further improving the long-term stability of the system.

[0010] The technical effects and advantages of this utility model are as follows: This invention, by incorporating a rapid drainage module, enables rainwater from the road surface to infiltrate and quickly be diverted into an underground sedimentation tank within a short time. This not only prevents water accumulation on the road surface and the occurrence of localized waterlogging points, but also effectively diverts rainwater, reducing the pressure on the urban pipe network. Thus, it solves the problem of poor drainage and waterlogging that easily occur on existing roads during heavy rainfall.

[0011] This invention, by installing a rainwater guide plate and a sludge discharge valve at the bottom of the rainwater sedimentation tank, enables the sediment to settle at the bottom of the tank and be discharged periodically, avoiding the accumulation of sludge that affects subsequent drainage, while ensuring the cleanliness of the water in the tank, further improving the reliability of rainwater reuse, and thus solving the problem of inefficient discharge of sediment in traditional sedimentation tanks. Attached Figure Description

[0012] Figure 1 This is a three-dimensional sectional view of the structure of this utility model.

[0013] Figure 2 This is a frontal perspective three-dimensional schematic diagram of the structure of this utility model.

[0014] Figure 3 This is a partial three-dimensional structural schematic diagram of the present invention.

[0015] Figure 4 This is a three-dimensional schematic diagram of the rainwater sedimentation tank structure of this utility model.

[0016] The attached diagram is labeled as follows: 100, soil layer; 110, pebble permeable layer; 111, road surface reinforcement layer; 112, asphalt pavement; 113, permeable pipe; 114, manifold; 115, rainwater sedimentation tank; 116, rainwater guide plate; 117, sludge discharge valve; 118, diversion pipe; 119, filter tank; 120, composite filter element; 121, water storage tank; 122, water level sensor; 123, water intake valve; 124, recharge well; 125, water diversion channel; 126, anti-clogging grating. Detailed Implementation

[0017] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Example 1

[0018] Reference Figure 1 and Figure 2 This utility model provides a rapid drainage structure for sponge city roads, including a soil layer 100, a road surface reinforcement layer 111 at the top of the soil layer 100, steel reinforcement supports inside the road surface reinforcement layer 111, and an asphalt pavement 112 laid on top of the road surface reinforcement layer 111. The soil layer 100 also includes a rapid drainage module, and the module includes: The pebble permeable layer 110 is evenly laid inside the soil layer 100, and its top is higher than the height of the soil layer 100. The seepage pipe 113 is uniformly and fixedly installed inside the pebble seepage layer 110. The seepage pipe 113 and the pebble seepage layer 110 are at a 15-degree angle. Multiple seepage holes are uniformly opened at the top of the seepage pipe 113. The manifold 114 is fixedly connected to multiple seepage pipes 113. The outer surfaces of both the seepage pipes 113 and the manifold 114 are covered with non-woven fabric. Rainwater sedimentation tank 115 is fixedly installed underground in the soil layer 100, and the end of the manifold 114 extends into the interior of the rainwater sedimentation tank 115.

[0019] Multiple rainwater guide plates 116 are fixedly installed at the bottom of the rainwater sedimentation tank 115. The rainwater guide plates 116 and the rainwater sedimentation tank 115 are all at a 30-degree angle. A sludge discharge valve 117 is fixedly installed on one side of the rainwater sedimentation tank 115.

[0020] A flow guide pipe 118 is fixedly installed on the rainwater sedimentation tank 115. A water suction pump is installed at the connection between the flow guide pipe 118 and the rainwater sedimentation tank 115. A filter tank 119 is fixedly installed at the end of the flow guide pipe 118. A composite filter element 120 is fixedly installed inside the filter tank 119. The composite filter element 120 is composed of multiple layers of sand and activated carbon.

[0021] Working principle: When rain falls on the asphalt pavement 112, the rainwater first infiltrates through the pavement reinforcement layer 111 and enters the pebble permeable layer 110 located below it. The pebble permeable layer 110 has a large porosity, which can quickly disperse and guide rainwater, avoiding local accumulation. The rainwater further enters the infiltration pipes 113 set in the pebble permeable layer 110. These infiltration pipes 113 are arranged at a 15-degree angle and have evenly distributed infiltration holes on their surface, which can efficiently guide and collect the rainwater infiltrating from the surrounding area. Under the cover of non-woven fabric, it effectively prevents mud and impurities from entering the inside of the pipes. Multiple infiltration pipes 113 finally converge into the manifold 114, which centrally transports the rainwater to the rainwater sedimentation tank 115. Inside the rainwater sedimentation tank 115, rainwater guide plates 116, installed at a 30-degree angle, force turbulence in the water flow, promoting the rapid settling of silt and suspended particles to the bottom of the tank, while clear water remains on the surface. Simultaneously, a sludge discharge valve 117 on one side of the tank facilitates the periodic discharge of deposited silt, preventing blockages. The relatively clear rainwater at the top is then pumped through a guide pipe 118 into the filtration tank 119, where it undergoes further purification via a composite filter element 120. This composite filter element 120, composed of multiple layers of sand and activated carbon, effectively removes suspended impurities, odors, and some harmful substances. Through this series of steps, rainwater is rapidly collected from the road surface, purified through sedimentation, and then deeply filtered. This ensures rapid drainage while also providing water quality improvement and subsequent utilization, ultimately achieving a balance between flood control and rainwater resource utilization. Example 2

[0022] Reference Figure 1 The difference between Embodiment 2 and Embodiment 1 is that: a water storage tank 121 is fixedly installed on one side of the composite filter element 120 through a pipe. The water storage tank 121 is located underground in the soil layer 100. A water level sensor 122 is fixedly installed on the water storage tank 121. The detection head of the water level sensor 122 extends to the bottom of the interior of the water storage tank 121. A water intake valve 123 is fixedly installed on one side of the water storage tank 121. The water intake valve 123 is connected to an external water pipe.

[0023] The top of one side of the reservoir 121 is naturally connected to a recharge well 124 through a pipe, and the recharge well 124 is connected to the groundwater in the soil layer 100.

[0024] Both sides of the asphalt pavement 112 are fixedly equipped with water diversion channels 125. The water diversion channels 125 are all located above the pebble permeable layer 110, and multiple anti-clogging grilles 126 are fixedly installed on the water diversion channels 125.

[0025] Working Principle: In this embodiment, the water diversion channels 125 and anti-clogging grilles 126 on both sides of the asphalt pavement 112 can quickly intercept surface rainwater and block large particles such as leaves and plastic bags during heavy rainfall, ensuring that rainwater can smoothly enter the pebble infiltration layer 110. Rainwater entering the infiltration pipe 113 is concentrated into the confluence pipe 114 by the inclined arrangement of the pipes, and finally flows into the rainwater sedimentation tank 115. After being settled and diverted by the guide plate 116, silt and suspended particles are deposited at the bottom of the tank, and the relatively clear upper rainwater is introduced into the filtration tank 119 by the guide pipe 118, and further purified by the multi-layer sand and activated carbon layer of the composite filter element 120. The purified water flows into the underground water storage tank 121. The water storage tank 121, in conjunction with the water level sensor 122, monitors the internal water volume in real time to ensure that the water level can be adjusted when it is too high or too low. When the water storage reaches a certain standard, the purified rainwater can be transported to the external pipe network through the water intake valve 123 for greening irrigation or municipal flushing, reducing tap water consumption. At the same time, the upper end of the water storage tank 121 is naturally connected to the recharge well 124. When the water level in the tank reaches the overflow outlet, the excess rainwater can directly infiltrate back into the soil layer 100 to replenish groundwater, taking into account both urban drainage and ecological conservation functions. This achieves a cycle of rapid drainage, sedimentation, filtration, storage, and recharge, which improves the overall resource utilization efficiency of rainwater from sponge city roads.

Claims

1. A sponge city road rapid drainage structure, comprising a soil layer (100), characterized in that, The soil layer (100) has a road reinforcement layer (111) at its inner top, and the road reinforcement layer (111) has steel reinforcement support inside. An asphalt pavement (112) is laid on top of the road reinforcement layer (111). The soil layer (100) also includes a rapid drainage module, which comprises: A pebble permeable layer (110) is evenly laid inside the soil layer (100), and its top end is higher than the height of the soil layer (100). The seepage pipe (113) is uniformly and fixedly installed inside the pebble seepage layer (110). The seepage pipe (113) and the pebble seepage layer (110) are at a 15-degree angle. The top of the seepage pipe (113) is uniformly provided with multiple seepage holes. The manifold (114) is fixedly connected to multiple seepage pipes (113) at the same time. The outer surfaces of the seepage pipes (113) and the manifold (114) are covered with non-woven fabric. Rainwater sedimentation tank (115) is fixedly installed underground in the soil layer (100), and the end of the manifold (114) extends into the interior of the rainwater sedimentation tank (115).

2. The sponge city road rapid drainage structure according to claim 1, characterized in that: Multiple rainwater guide plates (116) are fixedly installed at the bottom of the rainwater sedimentation tank (115). The rainwater guide plates (116) and the rainwater sedimentation tank (115) are at a 30-degree angle. A sludge discharge valve (117) is fixedly installed on one side of the rainwater sedimentation tank (115).

3. The sponge city road rapid drainage structure according to claim 1, characterized in that: A flow guide pipe (118) is fixedly installed on the rainwater sedimentation tank (115). A water pump is installed at the connection between the flow guide pipe (118) and the rainwater sedimentation tank (115). A filter tank (119) is fixedly installed at the end of the flow guide pipe (118). A composite filter element (120) is fixedly installed inside the filter tank (119). The composite filter element (120) is composed of multiple layers of sand and activated carbon.

4. The sponge city road rapid drainage structure according to claim 3, characterized in that: A water storage tank (121) is fixedly installed on one side of the composite filter element (120) via a pipe. The water storage tank (121) is located underground in the soil layer (100). A water level sensor (122) is fixedly installed on the water storage tank (121). The detection head of the water level sensor (122) extends to the bottom of the inside of the water storage tank (121). A water intake valve (123) is fixedly installed on one side of the water storage tank (121). The water intake valve (123) is connected to an external water pipe.

5. The sponge city road rapid drainage structure according to claim 4, characterized in that: The top of one side of the reservoir (121) is naturally connected to a recharge well (124) via a pipe, and the recharge well (124) is connected to the groundwater in the soil layer (100).

6. The rapid drainage structure for sponge city roads according to claim 1, characterized in that: Both sides of the asphalt pavement (112) are fixedly equipped with water diversion channels (125), which are all located above the pebble permeable layer (110), and multiple anti-clogging grilles (126) are fixedly installed on the water diversion channels (125).

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