A permeable pavement structure for sponge city

Abstract

This application relates to a permeable pavement structure for a sponge city, which includes a water infiltration tank opened on the road surface. A permeable concrete layer is fixedly arranged on the inner top of the water infiltration tank, and the upper surface of the permeable concrete layer is the road surface. A water pipe is connected to the position near the bottom of the inner side wall of the water infiltration tank. An anti-settlement plate is fixedly laid on the inner bottom wall of the water infiltration tank. A number of support columns are inserted into the anti-settlement plate, and the bottom ends of the support columns penetrate through the anti-settlement plate and are fixedly inserted into the ground. A first fixing component is arranged between the support columns and the anti-settlement plate. A number of support plates are arranged at the top ends of the support columns. A second fixing component is arranged between the support plates and the support columns. A number of water permeable holes are opened on the upper surface of the support plates, and a number of water infiltration holes are opened on the upper surface of the anti-settlement plate. A third fixing component is arranged between adjacent support plates. The permeable concrete layer is fixedly laid on the upper surfaces of all the support plates. This application has the effect of improving the stability and safety of the permeable pavement structure.

Description

Technical Field

[0001] This application relates to the technical field of municipal roads, and particularly to a permeable pavement structure for a sponge city. Background Art

[0002] The construction of municipal roads is often used in sponge cities. A sponge city is a new generation of urban stormwater management concept, which means that a city can be like a sponge and has good elasticity in adapting to environmental changes and coping with natural disasters brought by rainwater. It can also be called a "water-elastic city"; the international general term is "low-impact development stormwater system construction". When it rains, it absorbs, stores, infiltrates, and purifies water, and when needed, the stored water is released and utilized to realize the free migration of rainwater in the city.

[0003] The existing permeable pavement structure for a sponge city includes a water infiltration groove opened on the road surface. The water infiltration groove is communicated with an underground water pipe. A permeable concrete layer is fixedly arranged at the top inside the water infiltration groove. The periphery of the permeable concrete layer is fixed to the soil, and the upper surface of the permeable concrete layer is the road surface.

[0004] Regarding the above related technologies, the inventor believes that there are defects in the permeable pavement structure with a high possibility of collapse, resulting in a significant reduction in safety. Summary of the Invention

[0005] In order to improve the defect that the permeable pavement structure has a high possibility of collapse, resulting in a significant reduction in safety, this application provides a permeable pavement structure for a sponge city.

[0006] A permeable pavement structure for a sponge city provided by this application adopts the following technical solutions:

[0007] A permeable pavement structure for a sponge city includes a water infiltration groove opened on the road surface. A permeable concrete layer is fixedly arranged at the top inside the water infiltration groove, and the upper surface of the permeable concrete layer is the road surface. A water pipe is communicated with the inner side wall of the water infiltration groove near the bottom. An anti-settlement plate is fixedly laid on the bottom wall of the water infiltration groove. A number of support columns are inserted into the anti-settlement plate. The bottom ends of the support columns penetrate through the anti-settlement plate and are fixedly inserted into the ground. A first fixing component is arranged between the support columns and the anti-settlement plate. A number of support plates are arranged at the top ends of the support columns. A second fixing component is arranged between the support plates and the support columns. A number of water permeation holes are opened on the upper surface of the support plates, and a number of water infiltration holes are opened on the upper surface of the anti-settlement plate. A third fixing component is arranged between adjacent support plates. The permeable concrete layer is fixedly laid on the upper surfaces of all the support plates.

[0008] By adopting the above technical solution, after the water seepage tank is dug, the anti-settlement plate is first fixedly laid on the inner bottom wall of the water seepage tank, and then the support columns are inserted into the ground after passing through the anti-settlement plate. The support columns and the anti-settlement plate are fixed by the first fixing component. Then the support plate is fixed on the top of the support column by the second fixing component, and the adjacent support plates are fixed by the third fixing component. Finally, the permeable concrete layer is fixedly laid on the upper surface of the support plate. The water on the road surface reaches the support plate through the permeable concrete layer, and then falls into the bottom of the water seepage tank through the water permeable holes. Part of the water directly extends into the ground through the water seepage holes, and the excess water flows into the underground water pipe; the anti-settlement plate, the support columns and the support plate can strongly support the permeable concrete layer. The anti-settlement plate increases the contact stress area with the soil, and the support plate increases the contact stress area with the permeable concrete layer, ultimately greatly improving the stability and safety of the water seepage road surface structure.

[0009] Optionally, the first fixing component includes an anti-settlement sleeve and a plurality of anti-settlement bolts. The anti-settlement sleeve is fixedly sleeved on the circumferential side wall of the support column. The lower surface of the anti-settlement sleeve abuts against the upper surface of the anti-settlement plate, and the anti-settlement bolts penetrate through the anti-settlement sleeve and are threadedly connected into the anti-settlement plate.

[0010] By adopting the above technical solution, the anti-settlement sleeve variably increases the contact area between the support column and the anti-settlement plate. If the support column is subjected to pressure, the anti-settlement sleeve pressing on the anti-settlement plate can greatly improve the stability of the support column. The anti-settlement bolts can improve the stability between the anti-settlement sleeve and the anti-settlement plate, ultimately greatly improving the stability and safety of the water seepage road surface structure.

[0011] Optionally, a clamping sleeve is fixedly connected to the edge of the lower surface of the anti-settlement sleeve, and a positioning groove for inserting the clamping sleeve is formed on the upper surface of the anti-settlement plate.

[0012] By adopting the above technical solution, when the anti-settlement sleeve contacts the anti-settlement plate, the clamping sleeve is inserted into the positioning groove, which can play a role in limiting the horizontal direction of the support column, further improving the stability and safety of the water seepage road surface structure.

[0013] Optionally, the second fixing component includes a support sleeve and a plurality of support bolts. The support sleeve is fixedly sleeved on the circumferential side wall of the support column. The upper surface of the support sleeve abuts against the lower surface of the support plate, and the support bolts penetrate through the support plate and are threadedly connected into the support sleeve.

[0014] By adopting the above technical solution, the support sleeve can variably increase the contact stress area between the support column and the support plate. The support bolts can improve the stability between the support sleeve and the support plate, thereby making the fixed connection between the support column and the support plate more firm.

[0015] Optionally, the third fixing component includes a fixing spring and a fixing block. Fixing grooves communicating with each other are formed in the side walls of the two support plates in contact with each other. One end of the fixing spring is fixedly connected to one of the fixing grooves, the other end of the fixing spring is fixed to one end of the fixing block, and the end of the fixing block away from the fixing spring inclines downward. When the fixing spring is in a natural state, the fixing block is located in both fixing grooves at the same time.

[0016] By adopting the above technical solution, when installing the support plate, the support plate is installed on the support column from top to bottom. At the same time, the inclined surface of the fixing block is squeezed by the adjacent support plate and completely enters the fixing groove. When the two adjacent fixing grooves are completely communicated, the resilience of the fixing spring causes the fixing block to slide. At this time, the fixing block is located in both fixing grooves at the same time. When a relatively large pressure is applied to one of the support plates, the remaining support plates can share the pressure for it, greatly improving the support capacity of the support plate and the support column.

[0017] Optionally, a plurality of glue injection holes communicating with the fixing groove are formed in the upper surface of the support plate. A connection hole is formed in the side wall of the fixing block connected to the fixing spring, and both ends of the connection hole communicate with the two fixing grooves respectively.

[0018] By adopting the above technical solution, after the support plate is installed, construction glue is poured into the glue injection holes so that the construction glue fills the two fixing grooves, thereby fixing the fixing block and the fixing spring by bonding, further improving the stability between adjacent support plates.

[0019] Optionally, a plurality of embedded screws are fixed in the soil below the anti-settlement plate. The top end of the embedded screw penetrates through the anti-settlement plate and is threadedly connected with a pressing nut. The pressing nut presses the anti-settlement plate against the inner bottom wall of the water infiltration tank. Waterproof coatings are applied to the surfaces of the pressing nut and the embedded screw.

[0020] By adopting the above technical solution, after the anti-settlement plate is installed, the pressing nut is tightened on the embedded screw so that the pressing nut presses the anti-settlement plate against the soil on the inner bottom wall of the water infiltration tank, improving the stability between the anti-settlement plate and the soil.

[0021] Optionally, a plurality of connecting plates are fixedly connected between the adjacent support columns. The top end of the embedded screw penetrates through the connecting plate, and a plurality of clamping nuts are threadedly connected to the embedded screw. The clamping nuts are respectively located above and below the connecting plate and clamp the connecting plate. Waterproof coatings are also applied to the outer surfaces of the connecting plate and the clamping nuts.

[0022] By adopting the above technical solution, first screw a clamping nut onto the embedded screw, then pass the connecting plate through the embedded screw, and weld and fix both ends of the connecting plate to the outer walls of the two support columns. Tighten the clamping nut below the connecting plate against the lower surface of the connecting plate, and then tighten another clamping nut on the upper surface of the connecting plate. The connecting plate can strengthen the stability between adjacent support columns, and the setting of the clamping nut and the embedded screw improves the stability between the connecting plate, the anti-settlement plate and the soil.

[0023] Optionally, a water passing groove is formed on the upper surface of the support column, and a plurality of water passing holes communicating with the water passing groove are formed on the outer side wall of the support column located in the soil below the anti-settlement plate. The top end of the water passing groove communicates with the water permeable holes, and a sponge strip is plugged in the water passing groove.

[0024] By adopting the above technical solution, the water passing through the permeable concrete layer can directly enter the water passing groove through the water passing holes. The water entering the water passing groove is absorbed by the sponge body. When the sponge strip has enough water, it can seep into the ground through the water passing holes, further improving the water seepage efficiency.

[0025] Optionally, a fine filtration layer is fixedly provided at the connection between the underground water pipe and the water seepage tank.

[0026] By adopting the above technical solution, the setting of the fine filtration layer can improve the purity of the water entering the underground water pipe, providing better guarantee for the use of water resources in the underground water pipe.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. Fix the support column and the anti-settlement plate through the first fixing component, then fix the support plate on the top of the support column through the second fixing component, and fix the adjacent support plates through the third fixing component. The anti-settlement plate, the support column and the support plate can strongly support the permeable concrete layer. The anti-settlement plate increases the contact stress area with the soil, and the support plate increases the contact stress area with the permeable concrete layer, ultimately greatly improving the stability and safety of the water seepage road surface structure;

[0029] 2. After the anti-settlement plate is installed, tighten the compression nut on the embedded screw, so that the compression nut presses the anti-settlement plate against the soil on the inner bottom wall of the water seepage tank, improving the stability between the anti-settlement plate and the soil;

[0030] 3. Weld and fix both ends of the connecting plate to the outer walls of the two support columns. Tighten the clamping nut below the connecting plate against the lower surface of the connecting plate, and then tighten another clamping nut on the upper surface of the connecting plate. The connecting plate can strengthen the stability between adjacent support columns, and the setting of the clamping nut and the embedded screw improves the stability between the connecting plate, the anti-settlement plate and the soil. Description of the Drawings

[0031] Figure 1 is a cross-sectional view of an embodiment of the present application showing a water seepage hole;

[0032] Figure 2 is a cross-sectional view of an embodiment of the present application showing an underground water pipe;

[0033] Figure 3 is Figure 2 Part A in

[0034] Figure 4 is Figure 2 Part B in

[0035] Figure 5 is a partial cross-sectional view showing the first fixing component;

[0036] Figure 6 is a partial cross-sectional view showing the second fixing component;

[0037] Figure 7 is a partial cross-sectional view showing the third fixing component.

[0038] In the figure, 1 is a water seepage tank; 11 is an underground water pipe; 12 is a fine filter layer; 2 is a permeable concrete layer; 3 is an anti-settlement plate; 31 is a water seepage hole; 32 is a positioning groove; 4 is a support column; 41 is a water through groove; 42 is a water through hole; 43 is a sponge strip; 5 is a support plate; 51 is a permeable hole; 52 is a fixing groove; 53 is a glue injection hole; 6 is the first fixing component; 61 is an anti-settlement sleeve; 611 is a clamping sleeve; 62 is an anti-settlement bolt; 7 is the second fixing component; 71 is a support sleeve; 72 is a support bolt; 8 is the third fixing component; 81 is a fixing spring; 82 is a fixing block; 821 is a connection hole; 9 is a pre-embedded screw; 91 is a compression nut; 92 is a connection plate; 93 is a clamping nut. Detailed implementation manners

[0039] The following further elaborates on the present application in conjunction with the attached Figures 1-7 drawings.

[0040] An embodiment of the present application discloses a sponge city permeable pavement structure.

[0041] Refer to Figure 1 and Figure 2, the permeable road surface structure includes a water seepage tank 1 opened on the road surface. A horizontally arranged anti-settlement plate 3 is fixedly laid on the inner bottom wall of the water seepage tank 1. A number of vertically arranged support columns 4 are inserted on the anti-settlement plate 3. The bottom end of the support column 4 penetrates through the anti-settlement plate 3 and is inserted into the ground. A first fixing component 6 is arranged between the support column 4 and the anti-settlement plate 3. A number of horizontally arranged support plates 5 are provided at the top ends of the support columns 4. A second fixing component 7 is arranged between the support column 4 and the support plate 5. Adjacent support plates 5 are in contact with each other and are located on the same horizontal plane. A third fixing component 8 is arranged between adjacent support plates 5. A number of water permeable holes 51 are opened on the upper surface of the support plate 5. A number of water seepage holes 31 are opened on the upper surface of the anti-settlement plate 3. A permeable concrete layer 2 is fixedly laid on the upper surface of the support plate 5. The upper surface of the permeable concrete layer 2 is the road surface. A number of underground water pipes 11 are communicated at the position near the upper surface of the anti-settlement plate 3 at the bottom of the inner side wall of the water seepage tank 1. A fine filtration layer 12 is fixedly arranged at the connection between the underground water pipe 11 and the water seepage tank 1. In this embodiment, the fine filtration layer 12 is made of activated carbon material; when the permeable concrete layer 2 is under pressure, the pressure is first transmitted to the support plate 5, then transmitted to the anti-settlement plate 3 through the support column 4, and finally transmitted into the ground. The anti-settlement plate 3 increases the contact stress area with the soil, and the support plate 5 increases the contact stress area with the permeable concrete layer 2, which can strongly support the permeable concrete layer 2 and ultimately greatly improve the stability and safety of the permeable road surface structure.

[0042] As Figure 2 and Figure 3 shown, a vertically arranged embedded screw rod 9 is fixedly arranged in the soil below the anti-settlement plate 3. The top end of the embedded screw rod 9 penetrates through the anti-settlement plate 3 and extends into the water seepage tank 1. A pressing nut 91 that presses the anti-settlement plate 3 against the inner bottom wall of the water seepage tank 1 is threadedly connected to the embedded screw rod 9. Waterproof coatings are applied to the surfaces of both the pressing nut 91 and the embedded screw rod 9; the pressing nut 91 is tightened on the embedded screw rod 9, so that the pressing nut 91 presses the anti-settlement plate 3 against the soil on the bottom wall of the water seepage tank 1, improving the stability between the anti-settlement plate 3 and the soil.

[0043] As Figure 2 and Figure 4As shown in the figure, a horizontally arranged connecting plate 92 is fixedly connected between the outer side walls of adjacent support columns 4. The top end of the embedded screw 9 penetrates through the connecting plate 92. Two clamping nuts 93 are threadedly connected to each embedded screw 9. The two clamping nuts 93 are respectively located above and below the connecting plate 92 and clamp the connecting plate 92. Waterproof paint is also applied to the outer surfaces of the connecting plate 92 and the clamping nuts 93. First, thread one clamping nut 93 onto the embedded screw 9, then pass the connecting plate 92 through the embedded screw 9, and weld the two ends of the connecting plate 92 to the outer walls of two adjacent support columns 4 respectively. Then, thread the other clamping nut 93 onto the embedded screw 9 above the connecting plate 92. Finally, the two clamping nuts 93 clamp the connecting plate 92, improving the stability between the connecting plate 92, the anti-settlement plate 3 and the soil.

[0044] As Figure 5 shown, the first fixing component 6 includes an annular anti-settlement sleeve 61 and a plurality of anti-settlement bolts 62. A circular clamping sleeve 611 is fixedly connected to the lower surface of the anti-settlement sleeve 61 at the edge position. A positioning groove 32 for inserting the clamping sleeve 611 is formed on the upper surface of the anti-settlement plate 3. The lower surface of the anti-settlement sleeve 61 abuts against the upper surface of the anti-settlement plate 3. The anti-settlement bolts 62 vertically penetrate through the anti-settlement sleeve 61 and are threadedly connected to the anti-settlement plate 3. After the support column 4 penetrates through the anti-settlement plate 3 and is inserted into the ground, the lower surface of the anti-settlement sleeve 61 fits with the upper surface of the anti-settlement plate 3, and the clamping sleeve 611 is inserted into the positioning groove 32. Then, the anti-settlement bolts 62 penetrate through the anti-settlement sleeve 61 and are threadedly connected to the anti-settlement plate 3. The clamping sleeve 611 can limit the horizontal position of the support column 4, reducing the probability of the support column 4 tilting. Finally, the stability and safety of the permeable pavement structure are greatly improved.

[0045] As Figure 5 shown, a water passing groove 41 is formed on the upper surface of the support column 4, and a plurality of water passing holes 42 communicating with the water passing groove 41 are formed on the outer wall of the part of the bottom end of the support column 4 inserted into the ground. A sponge strip 43 is plugged in the water passing groove 41. The water on the road surface enters the water passing groove 41 successively through the permeable concrete layer 2 and the water passing holes 51. The sponge strip 43 absorbs the water. When the sponge strip 43 is saturated with water, the water can seep into the ground through the water passing holes 42, further improving the water seepage efficiency.

[0046] As Figure 6As shown in the figure, the second fixing assembly 7 includes an annular support sleeve 71 and a plurality of support bolts 72. The support sleeve 71 is fixedly sleeved on the outer side wall of the support column 4 near the top. The upper surface of the support sleeve 71 is in contact with the lower surface of the support plate 5. The support bolts 72 vertically penetrate the upper surface of the support plate 5 and are then threadedly connected into the support sleeve 71. The top end of the support column 4 is inserted into the inside of the lower surface of the support plate 5. When installing the support plate 5, place the support plate 5 on the top of the support column 4 and insert the top end of the support column 4 into the inside of the lower surface of the support plate 5 for preliminary positioning. Then, vertically penetrate the support bolts 72 through the support plate 5 and threadedly connect them into the support sleeve 71, so that the support bolts 72 press the support plate 5 against the support sleeve 71 and the support column 4, making the fixed connection between the support column 4 and the support plate 5 more firm.

[0047] As Figure 7 shown in the figure, the third fixing assembly 8 includes a horizontally arranged fixing spring 81 and a fixing block 82. Horizontal fixing grooves 52 are formed on the side walls of the two mutually contacting support plates 5. The adjacent fixing grooves 52 communicate with each other. One end of the fixing spring 81 is fixed to the inner wall of one of the fixing grooves 52, and the other end of the fixing spring 81 is fixed to one end of the fixing block 82. The fixing block 82 horizontally slides in the fixing groove 52. The end of the fixing block 82 away from the fixing spring 81 is inclined downward. When the fixing spring 81 is in its natural state, the fixing block 82 is located in both fixing grooves 52 at the same time. A plurality of glue injection holes 53 are formed on the upper surface of the support plate 5. The bottom of the glue injection hole 53 communicates with the fixing groove 52. The fixing spring 81 is located in the fixing groove 52 communicating with the glue injection hole 53. A connection hole 821 is formed on the side wall of the fixing block 82 connected to the fixing spring 81. Both ends of the connection hole 821 communicate with the two fixing grooves 52 respectively.

[0048] When installing the support plate 5, place the support plate 5 vertically downward on the top of the support column 4. At the same time, the inclined surface of the fixing block 82 is squeezed by the adjacent support plate 5 and completely enters the fixing groove 52. When the upper surfaces of the adjacent support plates 5 are flush, the adjacent two fixing grooves 52 are completely communicated. The fixing block 82 horizontally slides under the elastic force of the fixing spring 81, so that the fixing block 82 is located in both fixing grooves 52 at the same time. Finally, pour construction glue or glue into the glue injection hole 53, so that the fixing spring 81 and the fixing block 82 are both fixed in the support plate 5. When one of the support plates 5 is subjected to a large pressure, the remaining support plates 5 can share the pressure for it, greatly improving the supporting capacity of the support plate 5 and the support column 4.

[0049] The implementation principle of a permeable pavement structure for a sponge city in an embodiment of this application is as follows: When installing the permeable pavement structure, first dig a permeable groove 1 on the road surface, fixedly lay an anti-settlement plate 3 in the permeable groove 1, tighten the compression nut 91 onto the embedded screw 9, then penetrate the support column 4 through the anti-settlement plate 3 and insert it into the ground, so that the ferrule 611 is inserted into the positioning groove 32, and penetrate the anti-settlement bolt 62 through the anti-settlement sleeve 61 and tighten it in the anti-settlement plate 3; first thread a clamping nut 93 onto the embedded screw 9, then put the connecting plate 92 on the embedded screw 9, and weld the two ends of the connecting plate 92 to the outer walls of two adjacent support columns 4 respectively, then thread another clamping nut 93 onto the embedded screw 9 above the connecting plate 92, and finally clamp the connecting plate 92 with the two clamping nuts 93; place the support plate 5 on the top of the support column 4 so that the top of the support column 4 is inserted into the lower surface of the support plate 5. At this time, the upper surface of the support sleeve 71 fits with the lower surface of the support plate 5, penetrate the support bolt 72 through the support plate 5 and tighten it in the support sleeve 71; then place the adjacent connecting plate 92 vertically downward on the top of the support column 4. At the same time, the inclined surface of the fixed block 82 is squeezed by the adjacent support plate 5 and completely enters the fixed groove 52. When the upper surfaces of the adjacent support plates 5 are flush, the two adjacent fixed grooves 52 are completely connected. The fixed block 82 slides horizontally under the elastic force of the fixed spring 81, so that the fixed block 82 is located in the two fixed grooves 52 at the same time. Finally, pour construction glue or other glue into the glue injection hole 53, so that the fixed spring 81 and the fixed block 82 are both fixed in the support plate 5. Finally, pour permeable concrete on the upper surface of the support plate 5 to form a permeable concrete layer 2, making the permeable pavement structure more stable.

[0050] Water seeps into the permeable holes 51 from the permeable concrete layer 2. Part of it directly drops to the bottom of the permeable groove 1 through the permeable holes 51, and the other part enters the water passing groove 41 and is absorbed by the sponge strip 43. After the sponge strip 43 is saturated with absorption, the water in the water passing groove 41 seeps into the ground through the water passing holes 42. Part of the water that drops to the bottom of the permeable groove 1 directly seeps into the ground through the water seepage holes 31. When there is more water in the permeable groove 1, it enters the underground water pipe 11 through the filtration of the fine filtration layer 12 for recycling; ultimately, the water seepage efficiency is greatly improved.

[0051] When the permeable concrete layer 2 is under pressure, the pressure is first transmitted to the support plate 5, then to the support sleeve 71, the support column 4 and the connecting plate 92. At the same time, the embedded screw 9 and the anti-settlement plate 3 are under pressure, and finally transmitted to the soil below the anti-settlement plate 3. The anti-settlement plate 3 increases the contact stress area with the soil, and the support plate 5 increases the contact stress area with the permeable concrete layer 2, which can strongly support the permeable concrete layer 2, and ultimately greatly improves the stability and safety of the permeable pavement structure.

[0052] The embodiments of the specific implementation manners are all preferred embodiments of the present application, and do not limit the protection scope of the present application. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A permeable pavement structure for a sponge city, comprising a water infiltration tank (1) opened on the road surface. A permeable concrete layer (2) is fixedly arranged on the inner top of the water infiltration tank (1), and the upper surface of the permeable concrete layer (2) is the road surface. It is characterized in that: The inner side wall of the infiltration water tank (1) near the bottom is connected to an underground water pipe (11). An anti-settlement plate (3) is fixedly laid on the inner bottom wall of the infiltration water tank (1). A number of support columns (4) are inserted into the anti-settlement plate (3). The bottom ends of the support columns (4) penetrate through the anti-settlement plate (3) and are fixedly inserted into the ground. A first fixing component (6) is arranged between the support columns (4) and the anti-settlement plate (3). A number of support plates (5) are arranged at the top ends of the support columns (4). A second fixing component (7) is arranged between the support plates (5) and the support columns (4). A number of water permeable holes (51) are formed on the upper surface of the support plates (5). A number of water seepage holes (31) are formed on the upper surface of the anti-settlement plate (3). A third fixing component (8) is arranged between adjacent support plates (5). A permeable concrete layer (2) is fixedly laid on the upper surfaces of all the support plates (5); The third fixing component (8) includes a fixing spring (81) and a fixing block (82). Fixing grooves (52) communicating with each other are formed on the side walls of two mutually attached support plates (5). One end of the fixing spring (81) is fixedly connected in one of the fixing grooves (52). The other end of the fixing spring (81) is fixed to one end of the fixing block (82). The end of the fixing block (82) away from the fixing spring (81) is inclined downward. When the fixing spring (81) is in a natural state, the fixing block (82) is located in both fixing grooves (52) at the same time; A number of glue injection holes (53) communicating with the fixing grooves (52) are formed on the upper surface of the support plate (5). A connection hole (821) is formed on the side wall of the fixing block (82) connected to the fixing spring (81). The two ends of the connection hole (821) are respectively communicated with the two fixing grooves (52); A water through groove (41) is formed on the upper surface of the support column (4). A number of water through holes (42) communicating with the water through groove (41) are formed on the outer side wall of the support column (4) in the soil below the anti-settlement plate (3). The top end of the water through groove (41) communicates with the water permeable holes (51). A sponge strip (43) is plugged in the water through groove (41).

2. The sponge city permeable pavement structure according to claim 1, characterized in that: The first fixing component (6) includes an anti-settlement sleeve (61) and a number of anti-settlement bolts (62). The anti-settlement sleeve (61) is fixedly sleeved on the circumferential side wall of the support column (4). The lower surface of the anti-settlement sleeve (61) abuts against the upper surface of the anti-settlement plate (3). The anti-settlement bolts (62) penetrate through the anti-settlement sleeve (61) and are threadedly connected in the anti-settlement plate (3).

3. The sponge city permeable pavement structure according to claim 2, characterized in that: A clamping sleeve (611) is fixedly connected to the edge of the lower surface of the anti-settlement sleeve (61). A positioning groove (32) for inserting the clamping sleeve (611) is formed on the upper surface of the anti-settlement plate (3).

4. A permeable pavement structure for a sponge city according to claim 1, characterized in that: The second fixing component (7) includes a support sleeve (71) and a number of support bolts (72). The support sleeve (71) is fixedly sleeved on the circumferential side wall of the support column (4). The upper surface of the support sleeve (71) abuts against the lower surface of the support plate (5). The support bolts (72) penetrate through the support plate (5) and are threadedly connected in the support sleeve (71).

5. A sponge city permeable pavement structure according to claim 1, characterized in that: A number of embedded screws (9) are fixed in the soil below the anti-settlement plate (3). The top end of the embedded screw (9) penetrates through the anti-settlement plate (3) and is threadedly connected with a compression nut (91). The compression nut (91) presses the anti-settlement plate (3) against the inner bottom wall of the water infiltration tank (1). Waterproof paint is applied to the surfaces of both the compression nut (91) and the embedded screw (9).

6. The sponge city permeable pavement structure according to claim 5, characterized in that: A number of connecting plates (92) are fixedly connected between adjacent support columns (4). The top end of the embedded screw (9) penetrates through the connecting plate (92). A number of clamping nuts (93) are threadedly connected to the embedded screw (9). The clamping nuts (93) are respectively located above and below the connecting plate (92) and clamp the connecting plate (92). Waterproof paint is also applied to the outer surfaces of the connecting plate (92) and the clamping nuts (93).

7. A sponge city permeable pavement structure according to claim 1, characterized in that: A fine filter layer (12) is fixedly provided at the connection between the underground water pipe (11) and the water infiltration tank (1).

Images