Multifunctional seepage well facility

Abstract

The utility model discloses a multifunctional seepage well facility, which belongs to the technical field of water ecological management, and is characterized in that a middle masonry is arranged on an annular middle concrete bottom plate, a water storage cavity is formed, the middle masonry is of a cylindrical structure with a through hole in the bottom, and a middle permeable geotextile is arranged on the inner wall of the water storage cavity; middle water seepage filler is arranged at the bottom of the inner side of the water storage cavity, bottom center water seepage filler and bottom peripheral water seepage filler are arranged below the bottom masonry, and green plants are planted on the ground around the top water seepage filler. Effective collection and distribution of rainwater are achieved, and the utilization rate of the rainwater is increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of water ecological governance, and particularly relates to a multifunctional infiltration well facility. Background Art

[0002] Rainwater management and utilization are important links in the water ecological governance plan. As an effective rainwater collection and infiltration facility, infiltration wells are mainly set in the surrounding green spaces of buildings, roads and parking lots in buildings and communities. In non-collapsible loess areas, infiltration wells are applicable to areas with serious runoff pollution, where the bottom of the facility is generally not less than 1 m from the seasonal highest groundwater level and not less than 3 m from buildings. Infiltration wells play an important role in rainwater management and groundwater recharge. However, the existing infiltration well technology has the following limitations:

[0003] Limited collection efficiency: Traditional infiltration well designs are often relatively simple and lack optimization of collection efficiency under different rainfall conditions, resulting in the inability to fully collect rainwater during high rainfall.

[0004] Insufficient purification function: During the rainwater collection process of existing infiltration wells, the ability to purify the collected rainwater is limited, and pollutants such as suspended solids and organic matter in the rainwater cannot be effectively removed.

[0005] Single functionality: Most infiltration wells are mainly used for simple infiltration of rainwater and lack comprehensive consideration of rainwater collection, storage, purification and reuse. Content of the Utility Model

[0006] In view of this, the utility model provides a multifunctional infiltration well facility, which improves the rainwater collection efficiency and purification ability of the infiltration well, increases the functions of the infiltration well, and can meet the diverse needs of water ecological governance for rainwater management.

[0007] The utility model adopts the following technical solutions:

[0008] A multifunctional infiltration well facility is provided with a central masonry on a circular central concrete floor slab. The central masonry is a cylindrical structure with through holes at the bottom. The inner bottom wall and inner side wall of the central masonry form a water storage cavity. The inner wall of the water storage cavity is provided with a central permeable geotextile, and the inner bottom of the water storage cavity is provided with central infiltration filler;

[0009] Above the water storage cavity, a circular well ring is provided, and a circular top masonry is provided on the well ring. A filter frame is provided in the middle of the well ring and the top masonry. The filter frame is filled with top infiltration filler. Green plants are planted on the ground around the top infiltration filler, and rainwater can flow along the ground slope to the top infiltration filler;

[0010] The water quality sampling pipe vertically penetrates through the water storage cavity. The upper part of the water quality sampling pipe passes through the top seepage filler, and the lower part penetrates through the water storage cavity. And around the water quality sampling pipe below the water storage cavity, there are arranged riprap fillers, bottom masonry, and bottom peripheral seepage fillers from inside to outside in sequence; directly below the bottom masonry, there is a ring-shaped bottom concrete floor slab, and directly below the riprap fillers, there is a bottom center seepage filler;

[0011] Below the bottom center seepage filler, the bottom concrete floor slab and the bottom peripheral seepage filler are arranged on the compacted plain soil layer;

[0012] At the top of the side wall of the water storage cavity, there are an inlet pipe and a drain pipe. The inlet pipe is connected to the rainwater pipe network, and the drain pipe is connected to the downstream rainwater reuse facility.

[0013] Further, the well curb is a reinforced concrete well curb;

[0014] The top seepage filler is volcanic rock filler or sand and gravel filler;

[0015] The middle seepage filler, the bottom peripheral seepage filler, and the bottom center seepage filler are all medium and coarse sand fillers;

[0016] The middle masonry is made of brick, reinforced concrete or precast structure;

[0017] The bottom masonry is a hollow brick masonry structure, and the voids are arranged horizontally.

[0018] Further, the outer wall of a section of the water quality sampling pipe located inside the water storage cavity and below the water storage cavity is wrapped with permeable geotextile.

[0019] Further, between the interface of the bottom masonry and the bottom peripheral seepage filler, there is a two-layer geotextile and one-layer membrane structure;

[0020] The two-layer geotextile and one-layer membrane include permeable geotextiles on both sides and an HDPE membrane sandwiched between the permeable geotextiles.

[0021] Further, the top of the top seepage filler is 15 - 25 cm lower than the ground surface.

[0022] Further, the top end of the water quality sampling pipe is provided with a cover plate.

[0023] Further, on the pipe wall of a section of the water quality sampling pipe located below the water storage cavity, there are water inlet holes, and the aperture of the water inlet holes is 15 - 20 mm.

[0024] Further, the rainwater pipe network includes a rainwater downspout.

[0025] Further, the ground above the top masonry is a scattered structure of volcanic rock slabs;

[0026] The top masonry and the ground around the volcanic rock slab and above the well ring form a volcanic rock filling structure.

[0027] Beneficial effects:

[0028] 1. By setting a middle masonry on the annular middle concrete floor to form a water storage cavity, the effective collection and storage of rainwater are realized. The middle masonry is a cylindrical structure with through holes at the bottom. This design helps to improve the structural stability of the infiltration well, and the through hole design also helps the infiltration of rainwater. The inner wall of the water storage cavity is provided with a middle geotextile for water permeability, which can filter out suspended particles in the rainwater and play a preliminary purification role. The bottom of the inner side of the water storage cavity is provided with a middle water infiltration filler, and a bottom center water infiltration filler and a bottom peripheral water infiltration filler are provided below the bottom masonry. These fillers help to improve the infiltration efficiency of rainwater. Green plants are planted on the ground around the top water infiltration filler, which not only increases the ecological benefits, but also helps to further purify rainwater and improve the environment. The setting of the water quality sampling pipe enables the convenient sampling of the purified rainwater to monitor and evaluate the water quality of the rainwater purified by this infiltration well. Through the setting of the water inlet pipe and the drain pipe, the effective collection and distribution of rainwater are realized. The water inlet pipe is connected to the rainwater pipe network, and the drain pipe is connected to the downstream rainwater reuse facility, improving the utilization rate of rainwater.

[0029] 2. The well ring is a reinforced concrete well ring, which increases the overall strength and durability of the infiltration well facility, enabling it to bear greater loads and have a longer service life. The top water infiltration filler uses volcanic rock filler or sand and gravel filler. These materials have good water permeability and filtering effects, which help to improve the infiltration rate and purification quality of rainwater. The middle water infiltration filler, the bottom peripheral water infiltration filler, and the bottom center water infiltration filler are all medium coarse sand fillers. This unified material selection helps to maintain the consistency of the entire infiltration well facility and the simplicity of maintenance. The middle masonry can be made of bricks, reinforced concrete or prefabricated structures, providing a variety of material options to adapt to different construction conditions. The bottom masonry is constructed with hollow bricks, and the voids are arranged horizontally. This design increases the water permeable area at the bottom and helps rainwater to penetrate more effectively into the ground. By providing a variety of material and structure options, this multifunctional infiltration well facility can be customized according to different geographical environments, climatic conditions and engineering requirements, improving the adaptability and flexibility of the facility.

[0030] 3. By wrapping the outer wall of a section of the water quality sampling pipe in the water storage cavity and below the water storage cavity with geotextile for water permeability, the accuracy of water quality monitoring can be improved.

[0031] 4. By setting a "two-layer geotextile and one-layer membrane" structure between the bottom masonry and the bottom peripheral seepage filler, that is, two layers of permeable geotextiles sandwiching one layer of HDPE (high-density polyethylene) membrane, it can effectively prevent fine particulate matter in the bottom masonry from entering the bottom peripheral seepage filler layer. The addition of the HDPE membrane provides additional tensile and puncture resistance properties, enhancing the stability and durability of the entire infiltration well structure. The HDPE membrane has good waterproof performance, which can prevent groundwater backflow and maintain the water level stability in the water storage cavity.

[0032] 5. By setting the top of the top seepage filler 15 - 25 cm below the ground surface, it can reduce the direct impact of surface water on the top seepage filler, thereby protecting the filler structure and extending the service life of the infiltration well facility. Moreover, it helps to concentrate the surface rainwater flow towards the top seepage filler, increase the rainwater collection volume, and promote the infiltration of rainwater into the lower layer.

[0033] 6. By adding a cover plate at the top of the water quality sampling pipe, the cover plate can prevent external pollutants, such as dust and fallen leaves, from entering the water quality sampling pipe, ensuring the accuracy of sampling.

[0034] 7. The setting of the water inlet hole makes it more convenient for water quality monitoring and analysis, and water samples can be directly obtained from the sampling pipe for laboratory analysis.

[0035] 8. As the main channel for building rainwater discharge, connecting the rainwater downpipe to the infiltration well facility can efficiently collect and guide the roof rainwater to the infiltration well facility. Moreover, connecting to the rainwater pipe network can more reasonably distribute the rainwater flow direction, avoiding waterlogging or scouring caused by excessive rainwater in local areas. The rainwater collected through the rainwater pipe network can be centrally treated and utilized. After being treated by the infiltration well facility, the rainwater collected through the rainwater pipe network can be used for urban greening, road flushing, etc., promoting the sustainable utilization of rainwater resources and improving the utilization rate of rainwater resources.

[0036] 9. The loose-laid volcanic rock slab structure and volcanic rock filler, due to their natural pore structure, have good water permeability, which helps rainwater to quickly infiltrate. Moreover, the structure of the volcanic rock filler helps to stabilize the top masonry and prevent structural damage caused by rainwater scouring or soil erosion. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic structural diagram of a multifunctional infiltration well facility provided by the present utility model;

[0038] Figure 2 It is a top view of a multifunctional infiltration well facility provided by the present utility model;

[0039] Figure 3 It is a schematic structural diagram of the water quality detection sampling pipe in a multifunctional infiltration well facility provided by the present utility model;

[0040] Among them, 1 - ground, 2 - top seepage filler, 3 - filter frame, 4 - top masonry, 5 - well ring, 6 - volcanic rock slab, 7 - water quality sampling pipe, 8 - volcanic rock filler, 9 - water storage cavity, 10 - water inlet pipe, 11 - middle seepage filler, 12 - middle geotextile for water permeability, 13 - rubble filler, 14 - bottom concrete floor slab, 15 - plain soil layer, 16 - middle masonry, 17 - middle concrete floor slab, 18 - bottom masonry, 19 - bottom peripheral seepage filler, 20 - bottom central seepage filler, 21 - drain pipe, 22 - cover plate. Specific implementation manner

[0041] The following combines the attached drawings and gives examples to describe the present utility model in detail.

[0042] Refer to Figures 1 to 3 , a multifunctional infiltration well facility, which is provided with a middle masonry 16 on the annular middle concrete floor slab 17. The middle masonry 16 is a cylindrical structure with through holes at the bottom. The inner bottom wall and the inner side wall of the middle masonry 16 form a water storage cavity. The inner wall of the water storage cavity is provided with a middle geotextile for water permeability 12, and the inner bottom of the water storage cavity is provided with a middle seepage filler 11; above the water storage cavity is provided with an annular well ring 5, and an annular top masonry 4 is arranged on the well ring 5. A filter frame 3 made of stainless steel is arranged in the middle of the well ring 5 and the top masonry 4. The filter frame 3 is provided with a top seepage filler 2. Green plants are planted on the ground around the top seepage filler 2, and rainwater can flow along the slope of the ground 1 to the top seepage filler 2; the water quality sampling pipe 7 is vertically arranged through the water storage cavity. The upper part of the water quality sampling pipe 7 passes through the top seepage filler 2, and the lower part penetrates through the water storage cavity. And around the water quality sampling pipe below the water storage cavity, a rubble filler 13, a bottom masonry 18, and a bottom peripheral seepage filler 19 are arranged from inside to outside in sequence; directly below the bottom masonry 18 is provided with an annular bottom concrete floor slab 14, and directly below the rubble filler 13 is provided with a bottom central seepage filler 20; below the bottom central seepage filler 20, the bottom concrete floor slab 14 and the bottom peripheral seepage filler 19 are arranged on the compacted plain soil layer 15; at the top of the side wall of the water storage cavity are provided a water inlet pipe 10 and a drain pipe 21. The water inlet pipe is connected to the rainwater pipe network, and the drain pipe is connected to the downstream rainwater reuse facility.

[0043] Thus, by arranging the middle masonry 16 on the annular middle concrete floor slab 17, a water storage cavity is formed. The middle masonry 16 is equivalent to the well wall of an infiltration well, achieving effective collection and storage of rainwater. The middle masonry 16 is a cylindrical structure with through holes at the bottom. This design helps improve the structural stability of the infiltration well, and the through hole design also facilitates the infiltration of rainwater. The inner wall of the water storage cavity is provided with a middle geotextile 12, which can filter out suspended particles in the rainwater and play a preliminary purification role. The inner bottom of the water storage cavity is provided with middle infiltration filler 11. Under the bottom masonry 18, there are a bottom central infiltration filler 20 and a bottom peripheral infiltration filler 19. These fillers help improve the infiltration efficiency of rainwater. Green plants are planted on the ground around the top infiltration filler 2, which not only increases the ecological benefits but also helps further purify rainwater and improve the environment. The setting of the water quality sampling pipe 7 enables convenient sampling of the purified rainwater to monitor and evaluate the water quality after purification by this infiltration well. Through the setting of the water inlet pipe 10 and the drain pipe 21, effective collection and distribution of rainwater are achieved. The water inlet pipe 10 is connected to the rainwater pipe network, and the drain pipe 21 is connected to the downstream rainwater reuse facility, improving the utilization rate of rainwater.

[0044] Specifically, in this embodiment, the well curb 5 is a reinforced concrete well curb; the top infiltration filler 2 is a volcanic rock filler or a sand and gravel filler; the middle infiltration filler 11, the bottom peripheral infiltration filler 19, and the bottom central infiltration filler 20 are all medium coarse sand fillers; the middle masonry 16 is made of brick, reinforced concrete, or a precast structure; the bottom masonry 18 is a hollow brick masonry structure with the voids arranged horizontally. The well curb 5 being a reinforced concrete well curb increases the overall strength and durability of the infiltration well facility, enabling it to bear greater loads and have a longer service life. The top infiltration filler 2 uses a volcanic rock filler or a sand and gravel filler, which have good water permeability and filtering effects, helping to improve the infiltration rate and purification quality of rainwater. The middle infiltration filler 11, the bottom peripheral infiltration filler 19, and the bottom central infiltration filler 20 are all medium coarse sand fillers. This unified material selection helps maintain the consistency of the entire infiltration well facility and the simplicity of maintenance. The middle masonry 16 can be made of brick, reinforced concrete, or a precast structure, providing multiple material options to adapt to different construction conditions. The bottom masonry 18 adopts a hollow brick masonry structure with the voids arranged horizontally. This design increases the water permeable area at the bottom, helping rainwater to infiltrate into the ground more effectively. By providing multiple material and structure options, this multifunctional infiltration well facility can be customized according to different geographical environments, climatic conditions, and engineering requirements, improving the adaptability and flexibility of the facility.

[0045] More specifically, in this embodiment, the outer wall of a section of the water quality sampling pipe 7 located inside and below the water storage cavity is wrapped with a geotextile. By wrapping the outer wall of a section of the water quality sampling pipe 7 located inside and below the water storage cavity with a geotextile, the accuracy of water quality monitoring can be improved.

[0046] Referring to Figure 1 , in this embodiment, a two - fabric - one - film structure is provided between the interface of the bottom masonry 18 and the bottom peripheral seepage filler 19. The two - fabric - one - film includes permeable geotextiles on both sides and an HDPE film sandwiched between the permeable geotextiles. By setting the "two - fabric - one - film" structure between the bottom masonry 18 and the bottom peripheral seepage filler 19, that is, two layers of permeable geotextiles sandwiching one layer of HDPE (high - density polyethylene) film, it can effectively prevent fine particulate matter in the bottom masonry 18 from entering the bottom peripheral seepage filler layer 19. The addition of the HDPE film provides additional tensile and puncture resistance properties, enhancing the stability and durability of the entire infiltration well structure. The HDPE film has good waterproof performance, which can prevent groundwater back - seepage and maintain the water level stability in the water storage cavity.

[0047] Referring to Figure 1 , in this embodiment, the top of the top seepage filler 2 is 15 - 25 cm below the ground surface. By setting the top of the top seepage filler 2 to be 15 - 25 cm below the ground surface, it can reduce the direct impact of surface water on the top seepage filler 2, thereby protecting the filler structure and extending the service life of the infiltration well facilities. Moreover, it helps to concentrate the surface rainwater flow towards the top seepage filler 2, increasing the rainwater collection volume and promoting the infiltration of rainwater into the lower layers.

[0048] More specifically, referring to Figure 3 , in this embodiment, a cover plate 22 is provided at the top end of the water quality sampling pipe 7. By adding the cover plate 22 at the top end of the water quality sampling pipe 7, the cover plate 22 can prevent external pollutants, such as dust, fallen leaves, etc., from entering the water quality sampling pipe 7, ensuring the accuracy of sampling. Moreover, water inlet holes with a pore diameter of 15 - 20 mm are provided on the pipe wall of a section of the water quality sampling pipe 7 located below the water storage cavity. The setting of the water inlet holes makes it more convenient for water quality monitoring and analysis, and water samples can be directly obtained from the sampling pipe 7 for laboratory analysis.

[0049] In this embodiment, the downstream rainwater reuse facilities can be purification-type rain gardens or rain ponds, etc. The rainwater pipe network includes downspouts. As the main channel for building rainwater discharge, the downspouts are connected to the infiltration well facilities, which can efficiently collect and guide the roof rainwater to the infiltration well facilities. Moreover, connecting the rainwater pipe network can more reasonably distribute the rainwater flow direction, avoiding waterlogging or erosion caused by excessive rainwater in local areas. The rainwater collected through the rainwater pipe network can be centrally treated and utilized. After being treated by the infiltration well facilities, the rainwater collected through the rainwater pipe network can be used for urban greening, road flushing, etc., promoting the sustainable utilization of rainwater resources and improving the utilization rate of rainwater resources. In addition, in this embodiment, the ground above the top masonry 4 is a structure of scattered volcanic rock slabs 6, and the ground between the top masonry 4 and the periphery of the volcanic rock slabs 6 and above the well ring 5 is a structure of volcanic rock fillers 8. Due to their natural pore structures, the scattered structure of the volcanic rock slabs 6 and the volcanic rock fillers 8 have good water permeability, which helps rainwater quickly infiltrate. Moreover, the structure of the volcanic rock fillers 8 helps to stabilize the top masonry 4 and prevent structural damage caused by rainwater scouring or soil erosion.

[0050] More specifically, in this implementation, by designing the dimensions of the structures of each part of the multifunctional infiltration well facility, the multifunctional infiltration well is mainly applicable to smaller impervious catchment areas, with a flow surface generally less than 0.4 hectares, and the residence time of the rainwater stored in the water storage cavity does not exceed 48 hours to avoid water quality deterioration and ensure the normal function of the multifunctional infiltration well. In addition to being connected to the rainwater pipe network through the water inlet pipe, in specific engineering applications, the ground 1 at the top of the multifunctional infiltration well in this embodiment can also accommodate the rainwater flowing together from the surrounding green spaces and road squares, so that the rainwater in these places can flow into the multifunctional infiltration well for treatment.

[0051] To sum up, the above is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A multifunctional infiltration well facility, characterized in that: A middle masonry is arranged on the annular middle concrete bottom plate, the middle masonry is a cylindrical structure with a through hole at the bottom, the inner bottom wall and the inner side wall of the middle masonry form a water storage cavity, the inner wall of the water storage cavity is provided with a middle water-permeable geotextile, and the inner bottom of the water storage cavity is provided with a middle water-permeable filler; A ring-shaped well ring is arranged above the water storage cavity, a ring-shaped top masonry is arranged on the well ring, a filter frame is arranged in the middle of the well ring and the top masonry, a top seepage filler is arranged in the filter frame, green plants are planted on the ground around the top seepage filler, and rainwater can flow to the top seepage filler along the ground slope; The water quality sampling tube is vertically installed in the water storage cavity. The top of the water quality sampling tube passes through the top water seepage filler and the bottom of the water storage cavity. The block stone filler, the bottom masonry, and the bottom peripheral water seepage filler are arranged around the water quality sampling tube from the inside to the outside in sequence. A ring-shaped bottom concrete bottom plate is arranged directly below the bottom masonry, and a bottom center water seepage filler is arranged directly below the block stone filler. The bottom central seepage filler, the bottom concrete bottom plate and the bottom peripheral seepage filler are arranged on the compacted plain soil layer; A water inlet pipe and a drainage pipe are arranged on the top of the side wall of the water storage chamber. The water inlet pipe is connected to the rainwater pipe network, and the drainage pipe is connected to the downstream rainwater recycling facility.

2. A multifunctional infiltration well facility according to claim 1, characterized in that: The well ring is a reinforced concrete well ring; The top water seepage filler is volcanic rock filler or sand and gravel filler; The middle water-permeable filler, the bottom peripheral water-permeable filler and the bottom center water-permeable filler are all medium-coarse sand fillers; The middle masonry is brickwork, reinforced concrete or prefabricated structure; The bottom masonry is a hollow brick masonry structure with gaps arranged horizontally.

3. A multifunctional infiltration well facility according to claim 1, characterized in that: The outer wall of a section of the water quality sampling tube located in the water storage cavity and below the water storage cavity is wrapped with a permeable geotextile.

4. A multifunctional infiltration well facility according to claim 3, characterized in that: A two-cloth-one-membrane structure is provided between the interface between the bottom masonry and the bottom peripheral water-permeable filler; The two-cloth-one-membrane comprises permeable geotextiles on both sides and a HDPE membrane sandwiched between the permeable geotextiles.

5. A multifunctional infiltration well facility according to any one of claims 1 to 4, characterized in that: The top of the top water-permeable filler is 15 to 25 cm lower than the ground.

6. A multifunctional infiltration well facility according to any one of claims 1 to 4, characterized in that: A cover plate is arranged on the top of the water quality sampling tube.

7. A multifunctional infiltration well facility according to any one of claims 1 to 4, characterized in that: A water inlet hole is arranged on the pipe wall of a section of water quality water intake pipe located below the water storage cavity, and the hole diameter of the water inlet hole is 15-20 mm.

8. A multifunctional infiltration well facility according to any one of claims 1 to 4, characterized in that: The rainwater pipe network includes rainwater downpipes.

9. A multifunctional infiltration well facility according to any one of claims 1 to 4, characterized in that: The ground above the top masonry is a loosely assembled structure of volcanic rock slabs; The top masonry and the ground around the volcanic rock plate and above the well ring are volcanic rock filling structures.

Images