Sponge City Eco-Plaza Construction Structure

Abstract

The present application provides a sponge city ecological plaza construction structure, which relates to the field of sponge city technology, and includes an aquifer, a permeable layer, a bonding layer and a surface layer, wherein the surface layer is stably installed on the permeable layer through the bonding layer, and is characterized in that the surface layer is paved with a plurality of rock slabs, a permeable geotextile is arranged between the permeable layer and the surface layer, a plurality of permeable geotextiles are arranged, and the plurality of permeable geotextiles correspond to the gaps between a plurality of adjacent two rock slabs one by one, the permeable geotextiles are passed through the bonding layer and are paved in a Z-shaped seam-by-seam manner between the adjacent two rock slabs, the permeable geotextiles include a first paving portion, a second paving portion and an inclined portion located between the first paving portion and the second paving portion, the first paving portion is located between the bonding layer and the surface layer, the second paving portion is located between the permeable layer and the bonding layer, and the inclined portion is located at the gap between the adjacent two rock slabs and is arranged obliquely through the bonding layer. The present application has the effect of improving the wear resistance and water permeability of the square floor.

Description

Technical Field

[0001] The present application relates to the technical field of sponge cities, and in particular to a sponge city ecological plaza construction structure. Background Art

[0002] A sponge city refers to a city that takes measures such as "infiltration, retention, storage, purification, use and discharge" to minimize the impact of urban development and construction on the ecological environment and absorb and utilize 70% of rainfall locally.

[0003] At present, in the construction of sponge cities, permeable pavement has been widely used. It is implemented in municipal roads and parks, complementing greening, with good landscape effects, and has achieved good economic and social effects. However, permeable pavement also has certain shortcomings. Due to the poor wear resistance of the materials used in permeable pavement, permeable pavement cannot be directly used in large areas such as station squares and central squares due to landscape image issues. Utility Model Content

[0004] In order to improve the problem of poor wear resistance of the ground when only permeable paving is used in large areas such as squares, the present application provides a sponge city ecological square construction structure.

[0005] The present application provides a sponge city ecological plaza construction structure adopts the following technical solution:

[0006] A sponge city ecological plaza construction structure comprises an aquifer, a permeable layer, a bonding layer and a surface layer which are arranged in sequence from bottom to top, the surface layer being stably mounted on the permeable layer through the bonding layer, the surface layer being paved with a plurality of rock slabs, a permeable geotextile being arranged between the permeable layer and the surface layer, a plurality of the permeable geotextiles being arranged, the plurality of permeable geotextiles respectively corresponding to the gaps between a plurality of adjacent two rock slabs one by one, the permeable geotextile being passed through the bonding layer and being paved in a Z-shaped manner between two adjacent rock slabs, the permeable geotextile comprising a first paved portion, a second paved portion and an inclined portion between the first paved portion and the second paved portion, the first paved portion being located between the bonding layer and the surface layer, the second paved portion being located between the permeable layer and the bonding layer, the inclined portion being located at the gap between two adjacent rock slabs and being arranged obliquely through the bonding layer.

[0007] Furthermore, the vertical projections of the edges of two adjacent rock slabs close to each other on one side are located on the inclined portion.

[0008] Furthermore, an embedded groove is opened on the top of the permeable layer, and a drainage ditch is installed in the embedded groove. The drainage ditch includes a groove located in the embedded groove and a drainage channel connected to the groove. A plurality of permeable holes are opened through the groove. The accumulated water on the surface layer can enter the groove through the drainage channel and quickly flow into the permeable layer and the aquifer through the permeable holes.

[0009] Furthermore, a panel is installed at the notch of the groove, the drainage channel is located on the panel, and the width of the drainage channel is smaller than the width of the notch of the groove.

[0010] Furthermore, a plurality of cover plates are installed above the drainage ditch, and the plurality of cover plates are respectively located on both sides of the drainage channel, a part of the cover plate is covered on the water-permeable layer, and another part extends to the notch of the embedding groove and is located above the panel.

[0011] Furthermore, the top surface of the cover plate, the top surface of the rock plate and the top of the drainage channel are all arranged at the same height.

[0012] Furthermore, the drainage ditch is movably inserted in the embedded groove, and a gap is left between the outer plate of the drainage ditch and the inner wall of the embedded groove, and the cover plate can be detachably covered at the notch of the embedded groove.

[0013] Furthermore, a non-compact backfill layer is provided in the embedded groove, and the backfill layer is located in the gap between the outer wall of the drainage ditch and the inner wall of the embedded groove.

[0014] In summary, this application includes the following beneficial technical effects:

[0015] 1. When paving the permeable geotextile, the permeable geotextile is passed through the bonding layer and paved in a Z-shaped seam-by-seam manner between two adjacent rock slabs, that is, the first paving portion is located between the bonding layer and the surface layer, the second paving portion is located between the permeable layer and the bonding layer, and the inclined portion is located at the gap between the two adjacent rock slabs and is obliquely arranged through the bonding layer, so that the inclined portion of the permeable geotextile can accelerate the rapid drainage of the accumulated water located in the gap of the rock slabs. At the same time, the first paving portion and the second paving portion of the permeable geotextile are respectively located on the upper and lower sides of the bonding layer, so the permeable geotextile can also accelerate the accumulated water between the bonding layer and the surface layer to quickly penetrate the bonding layer and reach the permeable layer below the bonding layer, thereby reducing the accumulated water at the rock slab, achieving the purpose of rapid drainage, and achieving the effect of enhancing the permeability of the square construction structure;

[0016] 2. Design a combination of perforated linear drainage ditches and invisible cover plates to facilitate maintenance of the entire paving sponge system during the operation period, thus greatly saving operating costs;

[0017] 3. By setting embedded grooves in the permeable layer for installing drainage ditches, the "three seams in one" of the expansion joint of the permeable layer, the expansion joint of the surface layer and the drainage ditch are achieved, which reduces the construction steps and improves the landscape effect and walking comfort of the pavement. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0020] Figure 2 It is a schematic diagram of the structure of the permeable layer, bonding layer, rock plate and permeable geotextile in the embodiment of the present application.

[0021] Figure 3 yes Figure 2 Enlarged schematic diagram of part A.

[0022] Figure 4 It is a schematic diagram of the structure of the drainage ditch in the embodiment of the present application.

[0023] Figure numerals: 1, aquifer; 2, permeable layer; 3, bonding layer; 4, rock plate; 51, first tiling portion; 52, second tiling portion; 53, inclined portion; 6, embedded groove; 7, drainage ditch; 71, groove; 72, panel; 73, drainage channel; 8, cover plate; 9, backfill layer; 10, permeable hole. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] The present application embodiment discloses a sponge city ecological plaza construction structure. Figure 1 and Figure 2 The construction structure of the sponge city ecological square includes a water storage layer 1, a permeable layer 2, a bonding layer 3 and a surface layer arranged from bottom to top. The water storage layer 1 is made of graded crushed stone or pebbles and has good drainage performance. When paving the water storage layer 1, it can be paved in layers, and the thickness of the water storage layer 1 does not exceed 500㎜. The permeable layer 2 is specifically set as a permeable concrete base. The bonding layer 3 is made of cement dry sand ash, and the specific gravity of cement and sand is 1:5 to 1:6, so that the bonding layer 3 can reduce the use of cement as much as possible while ensuring the strength, thereby improving the permeability of the bonding layer 3. In order to improve the wear resistance of the road surface, the surface layer is paved with multiple rock slabs 4, and multiple rock slabs 4 are stably installed on the permeable layer 2 through the bonding layer 3.

[0026] Reference Figure 1 , Figure 2 and Figure 3 A permeable geotextile is also provided between the permeable layer 2 and the surface layer. There are multiple permeable geotextiles, and the multiple permeable geotextiles correspond to the gaps between multiple adjacent rock plates 4 one by one. The width of the permeable geotextile is 100 mm to 200 mm. The permeable geotextile is divided into a first paving portion 51, an inclined portion 53 and a second paving portion 52 along its width direction. When paving the permeable geotextile, the permeable geotextile is passed through the bonding layer 3 and paved in a Z-shaped seam-by-seam manner between two adjacent rock plates 4, that is, the first paving portion 51 is located between the bonding layer 3 and the surface layer, the second paving portion 52 is located between the permeable layer 2 and the bonding layer 3, and the inclined portion 53 is located at the gap between two adjacent rock plates 4 and is obliquely passed through the bonding layer 3. When there is water accumulation on the surface layer, the accumulated water can penetrate the surface layer, bonding layer 3, permeable layer 2 and aquifer 1 in sequence. Since the inclined portion 53 of the permeable geotextile is located at the gap between two adjacent rock plates 4, the inclined portion 53 of the permeable geotextile can accelerate the rapid drainage of the accumulated water located at the gap of the rock plates 4. At the same time, the first flat portion 51 and the second flat portion 52 of the permeable geotextile are respectively located on the upper and lower sides of the bonding layer 3. Therefore, the permeable geotextile can also accelerate the accumulated water between the bonding layer 3 and the surface layer to quickly penetrate the bonding layer 3 and reach the permeable layer 2 below the bonding layer 3, thereby reducing the water accumulation at the rock plates 4 and achieving the effect of rapid drainage.

[0027] Considering that the inclined portion 53 of the permeable geotextile is located at the gap between two adjacent rock plates 4, in order to avoid the inclined portion 53 of the permeable geotextile being damaged, Figure 2 and Figure 3 The vertical projections of the edges of two adjacent rock plates 4 close to each other are located on the inclined portion 53, so that the inclined portion 53 of the permeable geotextile is buried in the bonding layer 3 and will not be exposed to the gap between the two adjacent rock plates 4, thereby reducing the risk of damage to the permeable geotextile.

[0028] Reference Figure 1 and Figure 4, a plurality of embedded grooves 6 are provided on the top of the water-permeable layer 2, and the plurality of embedded grooves 6 are evenly distributed on the water-permeable layer 2. The distance between two adjacent embedded grooves 6 can be adjusted according to actual conditions. In the embodiment of the present application, the distance between two adjacent embedded grooves 6 is set to 6m. A drainage ditch 7 is installed in the embedded groove 6 to accelerate the discharge of accumulated water. The drainage ditch 7 includes a groove 71, a panel 72 stably covered at the notch of the groove 71 by riveting, and a drainage channel 73 located on the panel 72. The drainage channel 73 is composed of two side panels arranged at intervals. The two side panels are vertically riveted to the panel 72, and the drainage channel 73 formed by the two side panels is connected to the groove 71. The groove 71 is stably placed in the embedded groove 6, and the accumulated water on the surface layer can flow smoothly into the groove 71 through the drainage channel 73. In order to improve the drainage effect of the drainage ditch 7, a plurality of water-permeable holes 10 are provided on the groove 71 of the drainage ditch 7. The size of the water-permeable holes 10 is 1-2 cm, and the opening rate of the water-permeable holes 10 on the groove 71 is 1%-3%, so that the accumulated water in the drainage ditch 7 can quickly flow to the permeable layer 2 and the aquifer 1 through the water-permeable holes 10. While considering the drainage efficiency, the aesthetics of the square construction structure must also be taken into account. The width of the drainage channel 73 is smaller than the notch width of the groove 71, so that the diameter of the drainage channel 73 exposed on the surface layer will not be too wide, causing the square construction structure to be less beautiful.

[0029] In order to further improve the aesthetics of the square structure, refer to Figure 1 A plurality of cover plates 8 are installed on the drainage ditch 7, and the plurality of cover plates 8 are respectively located on both sides of the drainage channel 73. A portion of the cover plate 8 is covered on the water-permeable layer 2 on one side of the embedded groove 6, and the other portion extends to the notch of the embedded groove 6 and is located above the panel 72. The cover plate 8 is movably installed on the drainage ditch 7, and the cover plate 8 can shield the drainage ditch 7 on both sides of the drainage channel 73. The top surface of the cover plate 8, the top surface of the rock plate 4 and the top of the drainage channel 73 are all set at the same height, so that the drainage efficiency is ensured while also improving the aesthetics of the square construction structure.

[0030] Considering that when the accumulated water on the surface layer flows into the drainage ditch 7, part of the silt will be washed into the drainage ditch 7 together. Over time, the silt will accumulate in the drainage ditch 7, thereby affecting the drainage efficiency of the drainage ditch 7 for the accumulated water. Therefore, it is necessary to clean the silt in the drainage ditch 7 regularly. Figure 1 The drain ditch 7 is movably inserted into the embedded groove 6, and a gap is left between the outer plate of the drain ditch 7 and the inner wall of the embedded groove 6, and the cover plate 8 can be removably covered at the notch of the embedded groove 6; when the drain ditch 7 needs to be cleaned of mud and sand, it is only necessary to remove the cover plate 8 from the notch of the embedded groove 6, and then take the drain ditch 7 out of the embedded groove 6, so that the mud and sand in the drain ditch 7 can be quickly cleaned, and finally the drain ditch 7 after cleaning is put back into the embedded groove 6 and covered with the cover plate 8.

[0031] In order to enable the drain ditch 7 to be quickly removed from the embedded groove 6 and stably placed in the embedded groove 6, refer to Figure 1 A non-compacted backfill layer 9 is provided in the embedded groove 6. The backfill layer 9 is located in the gap between the outer wall of the drainage ditch 7 and the inner wall of the embedded groove 6. The non-compacted backfill layer 9 is made of sand and gravel without gel material inside. By filling sand and gravel between the embedded groove 6 and the drainage ditch 7, the drainage ditch 7 is stably placed in the embedded groove 6. At the same time, since the sand and gravel in the backfill layer 9 do not have gel material, the backfill layer 9 has a certain shrinkage performance, ensuring that the backfill layer 9 can adapt to the expansion and contraction of the permeable layer 2 during the drainage and accumulation process, so that the drainage ditch 7 can be stably and flatly placed in the embedded groove 6.

[0032] The implementation principle of the construction structure of a sponge city ecological plaza in the embodiment of the present application is as follows: first, a foundation trench is excavated in the construction area, and the foundation is inspected and accepted; then, a water storage layer 1 is spread in layers on the foundation; then, a template is set up on the water storage layer 1, and permeable concrete is spread in layers in the template to form a permeable layer 2 and an embedded groove 6; then, a linear drainage ditch 7 is installed in the embedded groove 6, and a backfill layer 9 is filled between the drainage ditch 7 and the embedded groove 6, so that the drainage ditch 7 is stably placed; then, a bonding layer 3 and a rock plate 4 are built above the permeable layer 2, and at the same time, a permeable geotextile is passed through the bonding layer 9. The geotextile is laid in a Z-shaped seam-by-seam pattern between the bonding layer 3 and the surface layer, the second flat portion 52 is located between the permeable layer 2 and the bonding layer 3, and the inclined portion 53 is located at the gap between the two adjacent rock plates 4 and is arranged obliquely through the bonding layer 3; finally, a plurality of cover plates 8 are installed on the drainage ditch 7, so that the cover plates 8 can cover the drainage ditch 7 on both sides of the drainage channel 73, and ensure that the top surface of the cover plate 8, the top surface of the rock plate 4 and the top of the drainage channel 73 are all set at the same height.

[0033] During the operation period, the linear drain ditch 7 should be cleared and cleaned every quarter. When the drain ditch 7 is too silted up, the cover plate 8 can be opened, and the linear drain ditch 7 can be taken out for clearing and clearing. After the cleaning is completed, the drain ditch 7 can be reinstalled in the embedded groove 6 and covered with the cover plate 8.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A sponge city ecological plaza construction structure, comprising an aquifer, a permeable layer, a bonding layer and a surface layer arranged in sequence from bottom to top, wherein the surface layer is stably installed on the permeable layer through the bonding layer, characterized in that: The surface layer is paved with multiple rock slabs, and a permeable geotextile is arranged between the permeable layer and the surface layer. There are multiple permeable geotextiles, and the multiple permeable geotextiles correspond to the gaps between multiple adjacent two rock slabs one by one. The permeable geotextile passes through the bonding layer and is paved in a Z-shape between two adjacent rock slabs. The permeable geotextile includes a first flat portion, a second flat portion and an inclined portion located between the first flat portion and the second flat portion. The first flat portion is located between the bonding layer and the surface layer, the second flat portion is located between the permeable layer and the bonding layer, and the inclined portion is located at the gap between two adjacent rock slabs and is arranged obliquely through the bonding layer.

2. The sponge city ecological plaza construction structure according to claim 1 is characterized in that: The vertical projections of the edges of two adjacent rock plates close to each other on one side are located on the inclined portion.

3. The sponge city ecological plaza construction structure according to claim 1 is characterized in that: A groove is provided on the top of the permeable layer, a drainage ditch is installed in the groove, the drainage ditch includes a groove located in the groove and a drainage channel connected to the groove, a plurality of permeable holes are provided through the groove, and the accumulated water on the surface layer can enter the groove through the drainage channel and quickly flow to the permeable layer and the aquifer through the permeable holes.

4. The sponge city ecological plaza construction structure according to claim 3 is characterized in that: The notch opening of the groove is covered with a panel, the drainage channel is located on the panel, and the width of the drainage channel is smaller than the notch opening width of the groove.

5. The sponge city ecological plaza construction structure according to claim 4 is characterized in that: The drainage ditch is covered with a plurality of cover plates, which are respectively located on both sides of the drainage channel. A part of the cover plate is covered on the water-permeable layer, and the other part extends to the notch of the embedded groove and is located above the panel.

6. The sponge city ecological plaza construction structure according to claim 5 is characterized in that: The top surface of the cover plate, the top surface of the rock plate and the top of the drainage channel are all arranged at the same height.

7. The sponge city ecological plaza construction structure according to claim 5 is characterized in that: The drainage ditch is movably inserted in the embedded groove, and a gap is left between the outer plate of the drainage ditch and the inner wall of the embedded groove, and the cover plate can be detachably covered at the notch of the embedded groove.

8. The sponge city ecological plaza construction structure according to claim 7 is characterized in that: A non-compact backfill layer is arranged in the embedding groove, and the backfill layer is located in the gap between the outer wall of the drainage ditch and the inner wall of the embedding groove.

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