Water permeable brick and footpath structure for sponge city

Abstract

The utility model discloses a water permeable brick and footpath structure for a sponge city. The water permeable brick comprises a body, the transverse side wall of the body is vertical, and the top surface of the body is transversely inclined along one side; the body is of a permeable structure, and the bottom face of the body is covered with a water stop plate. The footpath structure comprises a roadbed and a surface layer laid on the surface of the roadbed, the surface layer is arranged to be of a two-way cross slope structure, and the surface layer comprises a plurality of the water permeable bricks laid in an array mode. The top surfaces of the water permeable bricks are arranged to be inclined, so that a cross slope can be generated through the water permeable bricks, and inclined paving of the water permeable bricks is not needed. Therefore, during paving, the transverse side walls of all the water permeable bricks are kept vertical, so that the condition that a gap between two reversely inclined water permeable bricks is too large in the prior art can be avoided. And by arranging the water-stop sheet, rainwater can be prevented from permeating into the foundation, and therefore the foundation can be protected.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of road construction and paving, and in particular to a permeable brick and walkway structure for sponge cities. Background Art

[0002] The sponge city is a new generation of urban stormwater management concepts. It refers to cities that, like a sponge, exhibit remarkable resilience in adapting to environmental changes and responding to natural disasters caused by rainwater. It can also be called a "water-resilient city." Sponge cities absorb, infiltrate, purify, and store water during rainfall, releasing and utilizing the stored water when needed, thereby enabling the free migration of rainwater within the city. One of the fundamental requirements of the sponge city concept for trails is that they must not accumulate water on their surfaces during rain. To meet this requirement, trails are typically designed with horizontal slopes and permeable bricks. This allows some rainwater to drain rapidly laterally while also allowing some to quickly seep downwards.

[0003] Generally, there are two ways to set up a transverse slope. One is a one-way transverse slope, that is, the upper surface of the walkway is tilted toward one side along the transverse direction; the other is a two-way transverse slope, that is, the upper surface of the walkway is tilted from the center to both sides along the transverse direction. When the walkway is set up as a one-way transverse slope, rainwater can only be discharged from one side. Then, the rainwater on the high side needs to flow a long distance to reach the low side and be discharged, so the drainage efficiency is low. In order to speed up drainage, the walkway is often set up as a two-way transverse slope. However, in the prior art, since the transverse cross-section of the permeable brick is rectangular, when a two-way transverse slope is set up, the two permeable bricks located at the transverse center position will have a large gap on the surface of the walkway due to the opposite inclination directions (such as Figure 1 Furthermore, the permeable bricks used in existing technologies allow rainwater to penetrate the foundation, potentially damaging the roadbed through hydraulic erosion, thus affecting the safety and service life of the trail. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a permeable brick and walkway structure for sponge cities.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A permeable brick for sponge city comprises a main body, a lateral side wall of which is vertical, and a top surface of which is laterally inclined along one side; the main body is a permeable structure, and a bottom surface of which is covered with a water-blocking board.

[0007] As a further improvement of the above technical solution:

[0008] The angle β between the top surface of the main body and the horizontal plane is set to 1-3°.

[0009] The main body is formed with a planting pit, and the planting pit is a non-through structure with an open top.

[0010] The bottom surface of the water barrier is parallel to the top surface of the body.

[0011] One side of the bottom of the permeable brick protrudes in the transverse direction to form a convex edge, and the other side thereof shrinks in the transverse direction to form a groove, and the height of the convex edge is the same as that of the groove.

[0012] The present application also discloses a walkway structure, which includes a roadbed and a surface layer paved on the surface thereof, wherein the surface layer is arranged into a bidirectional transverse slope structure, and the surface layer includes a plurality of array-paved permeable bricks as described above.

[0013] As a further improvement of the above technical solution:

[0014] Cement mortar is filled between the water-blocking plates of adjacent permeable bricks.

[0015] Sand is filled between the bodies of adjacent permeable bricks.

[0016] The walkway structure also includes a drainage ditch arranged on the outside of the surface layer, and the drainage ditch includes a bottom plate and a ditch wall, which are arranged in an L shape; the upper surface of the bottom plate is flush with the upper surface of the baffle, and cement mortar is filled between the bottom plate and the baffle.

[0017] Compared with the prior art, the advantages of the present invention are:

[0018] By arranging the top surface of the permeable bricks into an inclined shape, a horizontal slope can be created without the need for tilted paving. During paving, the transverse sidewalls 16 of all permeable bricks will remain vertical, thus avoiding the situation in the prior art where there is a large gap between two permeable bricks that are tilted in opposite directions. Furthermore, by arranging the main body into a permeable structure and providing a baffle on its bottom surface, some rainwater can flow laterally along the top surface of the permeable bricks and be quickly discharged, while some rainwater can seep into the main body for storage, or after penetrating the main body, flow laterally along the upper surface of the baffle for discharge, thereby preventing rainwater from entering the foundation and thus protecting the foundation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic cross-sectional view of a trail structure in the prior art;

[0020] Figure 2 is a schematic structural diagram of the permeable brick in Example 1;

[0021] Figure 3 is a schematic structural diagram of the permeable brick in Example 2;

[0022] Figure 4 is a schematic structural diagram of the permeable brick in Example 3;

[0023] Figure 5 is a schematic cross-sectional view of the walkway structure in Example 4;

[0024] Figure 6 yes Figure 5 A partial enlarged schematic diagram of point A in the middle;

[0025] Figure 7 yes Figure 5 A partial enlarged schematic diagram of point B in the middle.

[0026] The numbers in the figure represent: 01, horizontal plane; 1, permeable brick; 11, main body; 12, water-blocking board; 13, planting pit; 14, convex edge; 15, groove; 16, horizontal side wall; 2, roadbed; 3, surface layer; 31, cement mortar; 32, sand; 4, drainage ditch; 41, bottom plate; 42, ditch wall; 43, cover plate. DETAILED DESCRIPTION

[0027] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] Example 1

[0029] like Figure 2 As shown, the permeable bricks for sponge cities in this embodiment include a main body 11, the two side surfaces of the main body 11 (i.e., the transverse side walls 16 of the permeable bricks) spaced apart laterally are vertical, and the top surface of the main body 11 is laterally inclined along one side to an angle of 1-3° with the horizontal plane 01. Below the main body 11, a baffle 12 is also provided, and the bottom surface of the baffle 12 is parallel to the top surface of the main body 11. In other words, the transverse section of the permeable brick is a parallelogram. Since the top surface of the permeable brick is inclined, a transverse slope can be generated therethrough without the need to tilt the permeable bricks. Then, during paving, the transverse side walls 16 of all the permeable bricks will remain vertical, thereby avoiding the situation in the prior art where the gap between two permeable bricks that are inclined in opposite directions is too large.

[0030] Furthermore, the main body 11 of the permeable brick is designed to be porous and permeable (similar to conventional permeable bricks), while the baffle 12 is designed to be dense and impermeable to water. During rain, some rainwater on the walkway surface can flow laterally along the top surface of the permeable brick and quickly drain away. Meanwhile, some rainwater can seep into the main body 11 and be stored, or after penetrating the main body 11, flow laterally along the upper surface of the baffle 12 and drain away. The baffle 12 prevents rainwater from entering the foundation, thus protecting it.

[0031] Example 2

[0032] like Figure 3As shown, this embodiment is substantially the same as the first embodiment, with the difference being that, in this embodiment, a planting pit 13 is further formed on the main body 11. The planting pit 13 is configured as a waist-shaped pit with an open top and a sealed bottom, forming a non-through structure. The provision of the planting pit 13 provides a space for planting and growing vegetation. Furthermore, because the planting pit 13 is formed within the main body 11, which is configured as a permeable structure, some rainwater can be stored within the main body 11 when it rains. After the rain stops, the rainwater within the main body 11 can slowly be released into the planting pit 13, thereby providing the water source necessary for plant growth.

[0033] Example 3

[0034] like Figure 4 As shown, this embodiment is basically the same as embodiment 2. The difference between the two is that, in this embodiment, one side of the bottom of the permeable brick protrudes laterally to form a convex edge 14, and the other side thereof shrinks laterally to form a groove 15. The convex edge 14 and the groove 15 have the same height. More specifically, one side of the baffle 12 protrudes laterally from the main body 11, thereby forming the convex edge 14; at the same time, the other side of the baffle 12 shrinks laterally below the main body 11, thereby forming the groove 15. The baffle 12 is a plate of uniform thickness, so the convex edge 14 and the groove 15 have the same thickness. By providing the convex edge 14 and the groove 15, during paving, the convex edge 14 of the permeable brick can be inserted into and vertically pressed by the groove 15 of the adjacent permeable brick, thereby reducing the probability of the permeable brick loosening to a certain extent.

[0035] Example 4

[0036] like Figures 5 to 7 As shown, this embodiment is an embodiment of a walkway structure. In this embodiment, the walkway structure includes a roadbed 2 and a surface layer 3 laid on its surface. The surface layer 3 is arranged in a bidirectional transverse slope structure and includes a plurality of permeable bricks 1 arranged in an array. In this embodiment, the permeable bricks 1 are selected from the permeable bricks 1 of Example 3. In other embodiments, the permeable bricks 1 of Example 1 or Example 2 can also be selected. Cement mortar 31 is filled between the baffles 12 of adjacent permeable bricks 1. The cement mortar 31 has poor water permeability and can prevent water from seeping in to a certain extent, thereby protecting the roadbed 2. At the same time, sand 32 is filled between the bodies 11 of adjacent permeable bricks 1. By filling the gaps between the bodies 11 of adjacent permeable bricks 1, the permeable bricks 1 are pressed together, thereby preventing the permeable bricks 1 from shifting when subjected to lateral external forces, thereby improving the overall stability of the walkway structure. Furthermore, due to the high water permeability of the sand 32, it can reduce the lateral flow of rainwater along the upper surface of the baffle 12 after penetrating the body 11.

[0037] Furthermore, the walkway structure of this embodiment also includes drainage ditches 4 disposed outside the surface layer 3, with two ditches 4 arranged on either side of the surface layer 3. Each gutter 4 comprises a base plate 41 and a ditch wall 42, both arranged in an L-shape. The upper surface of the base plate 41 is flush with the upper surface of the baffle 12, and cement mortar 31 is filled between the base plate 41 and the baffle 12. Rainwater draining along the surface of the surface layer 3 or the upper surface of the baffle 12 enters the gutter 4 and is guided by the gutter 4 to a designated location. Furthermore, to prevent pedestrians from stepping on empty space, a cover plate 43 is provided on the gutter 4.

[0038] Although the present invention has been disclosed above with reference to preferred embodiments, this is not intended to limit the present invention. Any person skilled in the art can, without departing from the scope of the present invention, utilize the technical content disclosed above to make many possible changes and modifications to the present invention, or modify it into equivalent embodiments with equivalent variations. Therefore, any simple modifications, equivalent variations, and modifications to the above embodiments that do not depart from the content of the present invention and are based on the technical essence of the present invention shall fall within the scope of protection of the present invention.

Claims

1. A permeable brick for sponge city, characterized by: It comprises a body (11), a transverse side wall (16) of which is vertical, and a top surface of which is transversely inclined along one side; the body (11) is a water-permeable structure, and a bottom surface of which is covered with a water-blocking plate (12).

2. The permeable brick according to claim 1, characterized in that: The included angle β between the top surface of the body (11) and the horizontal plane is set to 1-3°.

3. The permeable brick according to claim 1, characterized in that: The main body (11) is formed with a planting pit (13), and the planting pit (13) is a non-through structure with an open top.

4. The permeable brick according to claim 1, characterized in that: The bottom surface of the water barrier (12) is parallel to the top surface of the body (11).

5. The permeable brick according to claim 1, characterized in that: One side of the bottom of the permeable brick protrudes in the transverse direction to form a convex edge (14), and the other side thereof shrinks in the transverse direction to form a groove (15), and the convex edge (14) and the groove (15) have the same height.

6. A walkway structure comprising a roadbed (2) and a surface layer (3) laid on the surface thereof, wherein the surface layer (3) is configured as a bidirectional transverse slope structure, characterized in that: The surface layer (3) comprises a plurality of permeable bricks (1) according to any one of claims 1 to 5 arranged in an array.

7. The walkway structure according to claim 6, characterized in that: Cement mortar (31) is filled between the water-blocking plates (12) of adjacent permeable bricks (1).

8. The walkway structure according to claim 7, characterized in that: Sand (32) is filled between the bodies (11) of adjacent permeable bricks (1).

9. The walkway structure according to claim 6, characterized in that: The walkway structure further comprises a drainage ditch (4) arranged outside the surface layer (3), the drainage ditch (4) comprising a bottom plate (41) and a ditch wall (42), both of which are arranged in an L-shape; the upper surface of the bottom plate (41) is flush with the upper surface of the water barrier (12), and cement mortar (31) is filled between the bottom plate (41) and the water barrier (12).

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