A rainwater infiltration system based on ecological parking lot and preparation method

Abstract

The present invention provides a rainwater infiltration system and preparation method based on an ecological parking lot, comprising a first anti-sinking and permeable cloth layer, a plain soil base layer, a porous asphalt permeable layer, a second anti-sinking and permeable cloth layer, a light stone permeable bottom base layer, a sandless macroporous concrete base layer, a seepage layer, a medium sand leveling layer and an 8-shaped permeable grass-planting brick layer, which are sequentially arranged from bottom to top. A filtering dredging pipe is arranged on the 8-shaped permeable grass-planting brick layer, and a filtering surface layer is arranged at the top opening of the filtering dredging pipe. The filtering dredging pipe passes through the 8-shaped permeable grass-planting brick layer and the medium sand leveling layer from top to bottom and then connects to the seepage layer. The rainwater infiltration system and preparation method based on an ecological parking lot provided by the present invention can effectively prevent the loss of sand and soil through two layers of anti-sinking and permeable cloth layers, avoid the subsidence of the roadbed, improve the plant growth environment of the ecological parking lot, reduce the number of plant water replenishment times, and the system has good air permeability, water permeability, adhesion and water retention, high supporting strength, green and environmentally friendly, and can improve the local thermal environment.

Description

Technical Field

[0001] The present invention belongs to the technical field of rainwater infiltration systems, and in particular relates to a rainwater infiltration system based on an ecological parking lot and a preparation method thereof. Background Art

[0002] With the rapid development of the economy and society and the improvement of people's living standards, the number of cars in my country is also increasing year by year, and open-air or underground parking lots have developed rapidly. However, the ground structure of conventional cement or asphalt parking lots is simple, which isolates the exchange of moisture and heat between the earth and the atmosphere, easily forming an urban heat island effect and generating high temperatures, causing human discomfort. In addition, open-air parking lots often accumulate water, especially during rainy seasons. Although green plants are planted, they have little water absorption effect and small carrying capacity. The accumulation of rainwater will also soften the road foundation, causing the foundation to be damaged and affecting normal use. Summary of the invention

[0003] In order to solve the problems in the prior art, the purpose of the present invention is to provide a rainwater infiltration system based on an ecological parking lot and a preparation method thereof.

[0004] In order to achieve the above purpose and the above technical effect, the technical solution adopted by the present invention is:

[0005] A rainwater infiltration system based on an ecological parking lot comprises a first anti-sinking and permeable cloth layer, a plain soil base layer, a porous asphalt permeable layer, a second anti-sinking and permeable cloth layer, a light stone permeable bottom base layer, a sandless macroporous concrete base layer, a seepage layer, a medium sand leveling layer and an 8-shaped permeable grass brick layer, which are arranged in sequence from bottom to top. A plurality of filtering and dredging pipes are arranged at intervals on the 8-shaped permeable grass brick layer, a filtering surface layer is arranged at the top opening of the filtering and dredging pipe, and the filtering and dredging pipe passes through the 8-shaped permeable grass brick layer and the medium sand leveling layer in sequence from top to bottom and then is connected to the seepage layer.

[0006] Furthermore, the thickness of the first anti-sinking and water-permeable fabric layer and the second anti-sinking and water-permeable fabric layer are 100-300 mm respectively.

[0007] Furthermore, the thickness of the plain soil base layer is 200-500 mm.

[0008] Furthermore, the porous asphalt water-permeable layer has a porosity of 30-70%, and is made of high-viscosity finished wet-process rubber asphalt and adhesive.

[0009] Furthermore, the weight ratio of the high-viscosity finished wet-process rubber asphalt to the adhesive is 4-20:12-60, and the adhesive includes the following components in parts by weight:

[0010] 30-60 parts of aromatic oil, 10-25 parts of steel slag, 7-20 parts of dopamine, 10-30 parts of waste coal slag, 5-35 parts of silicon dioxide, 25-40 parts of potassium-based water glass, 5-20 parts of water, and 16-29 parts of non-cross-linked adhesive emulsion.

[0011] Furthermore, the thickness of the pumice permeable base layer is 300-700 mm, the particle size of the pumice in the pumice permeable base layer is 15-30 mm, and the particle size decreases from top to bottom. The larger the pumice, the closer it is to the arrangement of a sandless macroporous concrete base layer.

[0012] Furthermore, the thickness of the sandless macroporous concrete base is 150-300 mm.

[0013] Furthermore, the porosity of the water-permeable layer is not less than 10%, and the thickness of the water-permeable layer is 150-350 mm.

[0014] Furthermore, the thickness of the medium sand leveling layer is 45-100 mm.

[0015] Furthermore, a plurality of permeable bricks are arranged at intervals on the 8-shaped permeable grass brick layer, water-absorbing plants are planted on the permeable bricks, a plurality of filter holes connected to the medium sand leveling layer are arranged on the permeable bricks, and a negative ion release layer is arranged on the outer wall of the permeable bricks.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The invention discloses a rainwater infiltration system based on an ecological parking lot and a preparation method thereof, comprising a first anti-sinking and permeable cloth layer, a plain soil base layer, a porous asphalt permeable layer, a second anti-sinking and permeable cloth layer, a light stone permeable bottom base layer, a sandless macroporous concrete base layer, a seepage layer, a medium sand leveling layer and an 8-shaped permeable grass brick layer which are arranged in sequence from bottom to top; water-absorbing plants are planted on the 8-shaped permeable grass brick layer; the roots of the water-absorbing plants can absorb moisture on the light stone permeable bottom base layer; a plurality of filtering and dredging pipes are arranged at intervals on the 8-shaped permeable grass brick layer; a filtering surface layer is arranged at the top opening of the filtering and dredging pipe; the filtering and dredging pipes pass through the 8-shaped permeable grass brick layer and the medium sand leveling layer in sequence from top to bottom and then are connected to the seepage layer. The rainwater infiltration system based on the ecological parking lot and the preparation method provided by the present invention can effectively prevent the loss of sand and soil through two layers of anti-sinking and permeable fabric layers, avoid the subsidence of roadbed, and when rainwater passes through the ecological parking lot, part of the rainwater is intercepted by plants, and part of the rainwater passes through the 8-shaped permeable grass brick layer, the medium sand leveling layer, the seepage layer, and the sandless macroporous concrete base layer in sequence to enter the light stone permeable base layer, and part of the rainwater directly enters the seepage layer after being filtered through the filtering surface layer, and then enters the light stone permeable base layer through the sandless macroporous concrete base layer. The water-holding light stone in the light stone permeable base layer can store a large amount of rainwater and can be reused to irrigate water-absorbing plants, thereby improving the plant growth environment of the ecological parking lot and increasing the survival rate of plants. At the same time, the air permeability, water permeability and water retention of the planting matrix are effectively improved, and the number of times of plant water replenishment is reduced. The whole system has good permeability, drainage and adhesion, high supporting strength, can purify the air, and can improve the local thermal environment. It is green, environmentally friendly, and low in cost, and is suitable for promotion and use in parking lots, roads and other fields. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention. DETAILED DESCRIPTION

[0019] The embodiments of the present invention are described in detail below so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0020] like Figure 1As shown, a rainwater infiltration system based on an ecological parking lot includes a first anti-sinking permeable fabric layer 1, a plain soil base layer 2, a porous asphalt permeable layer 3, a second anti-sinking permeable fabric layer 4, a light stone permeable subbase layer 5, a sandless macroporous concrete base layer 6, a seepage layer 7, a medium sand leveling layer 8 and an 8-shaped permeable grass brick layer 9, which are arranged in sequence from bottom to top. A curbstone 10 is arranged on one edge of the light stone permeable subbase layer 5, the sandless macroporous concrete base layer 6, the seepage layer 7, the medium sand leveling layer 8 and the 8-shaped permeable grass brick layer 9, and water-absorbing plants 11 are planted on the 8-shaped permeable grass brick layer 9. The roots of the water-absorbing plants 11 can absorb the water on the light stone permeable subbase layer 5. The stored moisture is provided on the 8-shaped permeable grass brick layer 9 with a plurality of filtering dredging pipes 13 at intervals, and a filtering surface layer 12 is provided at the top opening of the filtering dredging pipe 13. The filtering dredging pipe 13 passes through the 8-shaped permeable grass brick layer 9 and the medium sand leveling layer 8 from top to bottom in sequence and then is connected to the seepage layer 7. The primary filtering effect is achieved through the filtering surface layer 12, and impurities such as large particles and large leaves contained in the water will be blocked outside and will not flow into the seepage layer 7 or even underground with the water. The water fluidity and permeability of the parking lot area can also be accelerated to avoid rainwater accumulation in the parking lot during heavy rain. The infiltration effect is excellent and the strength is high. It will not sink and the service life is extended.

[0021] The first anti-sinking water-permeable fabric layer 1 and the second anti-sinking water-permeable fabric layer 4 are made of high-strength water-permeable fabric, which has good water permeability and can prevent the loss of sand and soil in the upper layer, maintain the strength of the overall structure, and have a good anti-sinking effect.

[0022] The thickness of the first anti-sinking water-permeable fabric layer 1 and the second anti-sinking water-permeable fabric layer 4 are 100-300 mm respectively.

[0023] The plain soil base layer 2 is compacted by plain soil, and the compaction degree is not less than 93%. The thickness of the plain soil base layer 2 is 200-500 mm.

[0024] The porous asphalt water-permeable layer 3 has a porosity of 30-70%, and is made of high-viscosity finished wet-process rubber asphalt and an adhesive, wherein the weight ratio of the high-viscosity finished wet-process rubber asphalt to the adhesive is 4-20:12-60. In parts by weight, the adhesive includes the following components:

[0025] 30-60 parts of aromatic oil, 10-25 parts of steel slag, 7-20 parts of dopamine, 10-30 parts of waste coal slag, 5-35 parts of silicon dioxide, 25-40 parts of potassium-based water glass, 5-20 parts of water, and 16-29 parts of non-cross-linked adhesive emulsion. The non-cross-linked adhesive emulsion is preferably a plant emulsion or a styrene-acrylic emulsion, which has good environmental protection.

[0026] The sandless macroporous concrete base layer 6 is made of C20 sandless macroporous concrete, and the thickness of the sandless macroporous concrete base layer 6 is 150-300 mm.

[0027] The water seepage layer 7 is constructed of crushed stones, crushed gravel, etc. The porosity of the water seepage layer 7 is not less than 10%, and the thickness of the water seepage layer 7 is 150-350 mm.

[0028] The thickness of the medium sand leveling layer 8 is 45-100 mm.

[0029] The 8-shaped permeable grass brick layer 9 is made of a number of permeable bricks arranged at intervals. Water-absorbing plants 11 are planted on the permeable bricks. They are evergreen all year round and are cold-resistant and drought-resistant. A number of filter holes connected to the medium sand leveling layer 8 are arranged on the permeable bricks. Rainwater will penetrate into the medium sand leveling layer 8 through the filter holes to prevent the water-absorbing plants 11 from being suffocated by surrounding water accumulation. A negative ion release layer with a thickness of 6-10mm is arranged on the outer wall of the permeable brick, which can release negative ions to the external air after encountering water to purify the air.

[0030] The thickness of the pumice permeable subbase layer 5 is 300-700mm, and it is made of water-holding pumice. Using water-holding pumice in the ground ecological parking lot is an indispensable part of the construction of sponge cities, which effectively controls runoff and solves surface source pollution. Rainwater passes through the ecological parking lot, and part of the rainwater is intercepted by plants. Part of the rainwater passes through the 8-shaped permeable grass brick layer 9, the medium sand leveling layer 8, the seepage layer 7, and the sandless macroporous concrete base layer 6 to enter the pumice permeable subbase layer 5. Part of the rainwater directly passes through the filtering surface layer 12 and then enters the seepage layer 7, and then passes through the sandless macroporous concrete base layer 6 to enter the pumice permeable subbase layer 5. The water-holding pumice in the pumice permeable subbase layer 5 has the characteristics of being porous, permeable, and having a large specific surface area. It can store a large amount of rainwater and can be reused to irrigate water-absorbing plants 11, thereby improving the plant growth environment of the ecological parking lot and increasing the survival rate of plants. At the same time, it effectively improves the air permeability, water permeability, and water retention of the planting matrix, and reduces the number of times the plants are replenished with water.

[0031] The particle size of the water-holding light stone in the light stone permeable bottom base 5 is 15-30 mm, and the particle size decreases from top to bottom. The larger the water-holding light stone, the closer it is to the sandless macroporous concrete base 6.

[0032] The filter surface layer 12 includes two layers of porous resin filter layers with filter apertures decreasing from top to bottom.

[0033] The present invention also discloses a method for preparing a rainwater infiltration system based on an ecological parking lot, comprising the following steps:

[0034] Laying a first anti-sinking and water-permeable fabric layer 1 on the compacted road surface foundation;

[0035] A plain soil base layer 2 is evenly laid on the first anti-sinking and water-permeable fabric layer 1, and then a high-viscosity finished wet rubber asphalt and adhesive are evenly laid on the plain soil base layer 2, and then a second anti-sinking and water-permeable fabric layer 4 is laid;

[0036] The light stone permeable bottom base layer 5 is laid in an arrangement manner that the smaller the water-holding light stone is, the closer it is to the second anti-sinking permeable cloth layer 4, and the larger the water-holding light stone is, the closer it is to the sandless large-pore concrete base layer 6. Then the sand large-pore concrete base layer 6, the seepage layer 7, the medium-sand leveling layer 8 and the 8-shaped permeable grass brick layer 9 are laid in sequence. The permeable bricks in the 8-shaped permeable grass brick layer 9 are arranged at intervals, and water-absorbing plants 11 are planted on the permeable bricks. When parking, the car can be parked directly between the permeable bricks without crushing the water-absorbing plants 11.

[0037] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A rainwater infiltration system based on an ecological parking lot, characterized in that: It includes a first anti-sinking and permeable cloth layer, a plain soil base layer, a porous asphalt permeable layer, a second anti-sinking and permeable cloth layer, a light stone permeable bottom base layer, a sandless macroporous concrete base layer, a seepage layer, a medium sand leveling layer and an 8-shaped permeable grass brick layer, which are arranged in sequence from bottom to top. A plurality of filtering and dredging pipes are arranged at intervals on the 8-shaped permeable grass brick layer, and a filtering surface layer is arranged at the top opening of the filtering and dredging pipe. The filtering and dredging pipe passes through the 8-shaped permeable grass brick layer and the medium sand leveling layer in sequence from top to bottom and then is connected to the seepage layer. The thickness of the first anti-sinking and water-permeable fabric layer and the second anti-sinking and water-permeable fabric layer are 100-300 mm respectively; The thickness of the plain soil base is 200-500mm; The porous asphalt permeable layer has a porosity of 30-70% and is made of high-viscosity finished wet rubber asphalt and adhesive; The weight ratio of the high-viscosity finished wet-process rubber asphalt to the adhesive is 4-20:12-60. In parts by weight, the adhesive includes the following components: 30-60 parts of aromatic oil, 10-25 parts of steel slag, 7-20 parts of dopamine, 10-30 parts of waste coal slag, 5-35 parts of silicon dioxide, 25-40 parts of potassium-based water glass, 5-20 parts of water, and 16-29 parts of non-cross-linked adhesive emulsion; The thickness of the pumice water-permeable base layer is 300-700 mm, the particle size of the pumice in the pumice water-permeable base layer is 15-30 mm, and the particle size decreases from top to bottom, and the larger the pumice, the closer it is to the arrangement of the sandless macroporous concrete base layer; The thickness of the sand-free macroporous concrete base is 150-300 mm.

2. The rainwater infiltration system based on the ecological parking lot according to claim 1 is characterized in that: The porosity of the water seepage layer is not less than 10%, and the thickness of the water seepage layer is 150-350 mm.

3. The rainwater infiltration system based on the ecological parking lot according to claim 1 is characterized in that: The thickness of the medium sand leveling layer is 45-100 mm.

4. The rainwater infiltration system based on the ecological parking lot according to claim 1 is characterized in that: A plurality of permeable bricks are arranged at intervals on the 8-shaped permeable grass brick layer, water-absorbing plants are planted on the permeable bricks, a plurality of filter holes connected to the medium sand leveling layer are arranged on the permeable bricks, and a negative ion release layer is arranged on the outer wall of the permeable bricks.

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