Water storage parking space structure, drainage parking space structure and ecological parking space system

Abstract

The utility model relates to a water storage parking space structure, a drainage parking space structure and an ecological parking space system.The water storage parking space structure comprises a first greening unit, a first water permeable unit, a water storage unit and a first overflow unit; the first permeable unit is arranged around the first greening unit; the water storage unit is arranged at the lower part of the first greening unit, and the edge of the water storage unit does not exceed the edge of the first permeable unit; the first overflow unit is arranged on the first greening unit, and the top of the first overflow unit protrudes out of the top of the first greening unit and communicates with the water storage unit; the first drainage unit communicates with the water storage unit and the water catchment structure. The greening system has the advantages that the first overflow unit communicated with the water storage unit is arranged in the first greening unit, so that the water storage unit can quickly store rainwater flowing into the hard pavement structure during rainstorm, and then the rainwater slowly permeates into surrounding soil to supplement underground water; the problem that an existing ecological parking space cannot bear rainwater on the hardened ground of an adjacent area is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of sponge cities, in particular to a water storage parking space structure, a drainage parking space structure and an ecological parking space system. Background Art

[0002] In order to reduce rainwater waterlogging and improve the water ecological environment, China put forward the requirement of adhering to the concept of sustainable development and implementing the development concept of sponge cities in urban construction in 2013. An important measure with relatively high economic benefits in sponge city construction is to reduce the scale of non-permeable hardened ground, reduce surface runoff, increase the area of permeable pavement, and expand the natural infiltration channels of rainwater.

[0003] A large number of ground parking spaces often need to be set on the outdoor ground of buildings and communities. Previously, its conventional is to use concrete impermeable ground. In recent years, according to the needs of sponge city construction, most ground parking spaces use permeable pavement, generally permeable bricks or grass planting bricks. The compressive strength of such ground permeable materials is insufficient. In order to prevent ground settlement and deformation, an impermeable concrete cushion layer is generally set at its lower foundation. Such permeable parking spaces are actually only permeable on the surface layer, and the contribution rate to sponge cities is relatively low.

[0004] In order to change the defects of the above parking space design, at present, most permeable parking spaces use permeable concrete with relatively high compressive strength as the surface layer, and its foundation uses a combination of permeable medium coarse sand, gravel and compacted plain soil. Such parking spaces basically meet the performance indicators of permeable pavement and the safety requirements for parking use in terms of design. However, considering that the groundwater level is relatively high in the southern region, the groundwater level in most areas is about 1m from the ground, and may be only 0.5m during the rainy season. The actual rainwater infiltration volume of the above parking spaces cannot reach the design value during the rainy season, and such parking spaces only bear the rainwater within their own range and cannot bear the rainwater on the hardened ground in the adjacent area, and the contribution rate of sponge facilities is not high.

[0005] At present, in view of the problems such as the existing ecological parking spaces in the related technology cannot bear the rainwater on the hardened ground in the adjacent area, no effective solution has been proposed. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a water storage parking space structure, a drainage parking space structure and an ecological parking space system for the deficiencies in the prior art, so as to solve the problems such as the existing ecological parking spaces in the related technology cannot bear the rainwater on the hardened ground in the adjacent area.

[0007] To achieve the above purpose, the technical solution adopted by the utility model is:

[0008] In the first aspect, a water storage parking space structure for a sponge city system is provided, including:

[0009] A first greening unit;

[0010] The first water-permeable unit, which is arranged around the first greening unit;

[0011] The water storage unit, which is arranged below the first greening unit, and the edge of the water storage unit is not set to exceed the edge of the first water-permeable unit;

[0012] The first overflow unit, which is arranged in the first greening unit, and the top of the first overflow unit protrudes from the top of the first greening unit and is communicated with the water storage unit for introducing surface water into the water storage unit;

[0013] The first drainage unit, which is respectively communicated with the water storage unit and the water collection structure for timely discharging rainwater exceeding the capacity of the water storage unit.

[0014] In some of the embodiments, it further includes:

[0015] The first water-seepage unit, which is arranged at the bottom of the first greening unit, the bottom of the first water-permeable unit, and the top of the water storage unit.

[0016] In some of the embodiments, it further includes:

[0017] The second water-permeable unit, which is arranged at the bottom of the water storage unit.

[0018] In some of the embodiments, it further includes:

[0019] The second water-seepage unit, which is arranged at the bottom of the water storage unit.

[0020] In some of the embodiments, it further includes:

[0021] The first base unit, on the top of which the first greening unit, the first water-permeable unit, and the water storage unit are arranged.

[0022] In some of the embodiments, it further includes:

[0023] The first filtering unit, which is arranged on the outer surface of the water storage unit for preventing surrounding soil from entering the inside of the water storage unit.

[0024] In some of the embodiments, it further includes:

[0025] The second filtering unit, which is arranged on the top of the first overflow unit for preventing sundries from entering the inside of the first overflow unit.

[0026] In some of these embodiments, the thickness of the first greening unit is 0.2 m to 0.3 m;

[0027] The thickness of the first water-permeable unit is 0.2 m to 0.3 m;

[0028] The thickness of the first water-seepage unit is 0.15 m to 0.2 m;

[0029] The thickness of the second water-seepage unit is 0.1 m to 0.15 m.

[0030] In some of these embodiments, the material of the first water-permeable unit is water-permeable mortarless large-pore permeable concrete;

[0031] The material of the first water-seepage unit is natural graded sand and gravel;

[0032] The material of the second water-seepage unit is coarse sand.

[0033] In a second aspect, a drainage parking space structure is provided, which is communicated with the water storage parking space structure as described in the first aspect and is used for draining water to the water storage parking space structure. The drainage parking space structure includes:

[0034] A second greening unit;

[0035] A third water-permeable unit, which is arranged around the second greening unit;

[0036] A second overflow unit, which is arranged on the second greening unit, and the top of the second overflow unit protrudes from the top of the second greening unit and is used for introducing surface water into the water storage unit of the water storage parking space structure;

[0037] A second drainage unit, which is respectively communicated with the second overflow unit and the water collection structure and is used for introducing surface water into the water storage unit of the water storage parking space structure.

[0038] In some of these embodiments, it further includes:

[0039] A third water-seepage unit, which is arranged at the bottom of the second greening unit and the bottom of the third water-permeable unit.

[0040] In some of these embodiments, it further includes:

[0041] A second foundation unit, on the top of which the second greening unit and the third water-permeable unit are arranged.

[0042] In some of these embodiments, it further includes:

[0043] A third filtering unit is provided on top of the second overflow unit to prevent debris from entering the interior of the second overflow unit.

[0044] In some embodiments, the thickness of the second greening unit is 0.2 m to 0.3 m;

[0045] The thickness of the third permeable unit is 0.2 m to 0.3 m;

[0046] The thickness of the third water infiltration unit is 0.15 m to 0.2 m.

[0047] In some embodiments, the material of the third permeable unit is permeable non-sand macroporous permeable concrete;

[0048] The material of the third water infiltration unit is natural graded sand and gravel.

[0049] In a third aspect, an ecological parking space system for a sponge city water storage system is provided, including:

[0050] At least one water storage parking space structure as described in the first aspect;

[0051] At least one drainage parking space structure as described in the second aspect;

[0052] A hard pavement structure is adjacently arranged to the water storage parking space structure and the drainage parking space structure respectively, and the top surface of the hard pavement structure is higher than the top surface of the first permeable unit of the water storage parking space structure and the top surface of the third permeable unit of the drainage parking space structure;

[0053] A water collecting structure is provided at the bottom of the hard pavement structure and is connected to the first drainage unit of the water storage parking space structure.

[0054] In some embodiments, the ratio of the number of the drainage parking space structures to the number of the water storage parking space structures is ≥2.

[0055] By adopting the above technical solutions, compared with the prior art, the present utility model has the following technical effects:

[0056] For a water storage parking space structure, a drainage parking space structure and an ecological parking space system of the present utility model, by providing a first overflow unit communicating with a water storage unit inside a first greening unit, during heavy rain, the water storage unit can quickly store rainwater flowing in from the hard pavement structure, and then slowly infiltrate into the surrounding soil to supplement groundwater, solving the problems that existing ecological parking spaces cannot bear rainwater on adjacent hardened ground, etc.; meanwhile, a first drainage unit communicating with a water collecting structure is provided at the top of the side of the water storage unit, which can timely discharge rainwater exceeding the design return period to prevent the parking space from being flooded. Brief Description of the Drawings

[0057] Figure 1 is a schematic diagram of the water storage parking space structure according to an embodiment of the present utility model;

[0058] Figure 2 is a schematic diagram of the water storage parking space structure according to an embodiment of the present utility model;

[0059] Figure 3 is a schematic diagram of the drainage parking space structure according to an embodiment of the present utility model;

[0060] Figure 4 is a schematic diagram of the ecological parking space system according to an embodiment of the present utility model;

[0061] Figure 5 is a schematic diagram of the ecological parking space system according to an embodiment of the present utility model.

[0062] The reference numerals therein are: 100, water storage parking space structure;

[0063] 110, first greening unit; 120, first permeable unit; 130, water storage unit; 140, first overflow unit; 150, first drainage unit; 160, first water seepage unit; 170, second permeable unit; 180, second water seepage unit; 190, first foundation unit; 1100, first filtration unit; 1110, second filtration unit;

[0064] 200, drainage parking space structure;

[0065] 210, second greening unit; 220, third permeable unit; 230, second overflow unit; 240, second drainage unit; 250, third water seepage unit; 260, second foundation unit; 270, third filtration unit;

[0066] 300, hard road surface structure;

[0067] 400, water collection structure. Detailed Embodiments

[0068] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0069] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments may be combined with each other.

[0070] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments, but it is not intended to limit the present utility model.

[0071] Embodiment 1

[0072] This embodiment relates to the water storage parking space structure of the present utility model.

[0073] A schematic embodiment of the present utility model, as Figures 1 to 2 shown, a water storage parking space structure 100 includes a first greening unit 110, a first permeable unit 120, a water storage unit 130, and a first overflow unit 140. Among them, the first permeable unit 120 is arranged around the first greening unit 110; the water storage unit 130 is arranged below the first greening unit 110, and the edge of the water storage unit 130 is not set to exceed the edge of the first permeable unit 120; the first overflow unit 140 is arranged in the first greening unit 110, and the top of the first overflow unit 140 protrudes from the top of the first greening unit 110 and is communicated with the water storage unit 130 for introducing surface water into the water storage unit 130; the first drainage unit 150 is respectively communicated with the water storage unit 130 and the water collecting structure for timely discharging rainwater exceeding the capacity of the water storage unit 130; the thickness of the first greening unit 110 is 0.2 m to 0.3 m; the thickness of the first permeable unit 120 is 0.2 m to 0.3 m; the material of the first permeable unit 120 is pervious non-sand large-pore permeable concrete.

[0074] In some of these embodiments, the length of the water storage parking space structure 100 is 5.3 m and the width is 2.4 m.

[0075] In some of these embodiments, the length of the first greening unit 110 is 3.3 m, the width is 0.8 m, and the thickness is 0.2 mm.

[0076] In some of these embodiments, the first greening unit 110 includes but is not limited to planting lawns.

[0077] The size of the first permeable unit 120 matches the size of the first greening unit 110. Generally, the thickness of the first permeable unit 120 is equal to the thickness of the first greening unit 110, and the radial dimension of the inner contour of the first permeable unit 120 is equal to the radial dimension of the first greening unit 110.

[0078] In some of these embodiments, the cross-section of the first permeable unit 120 is an annular rectangle.

[0079] In some of these embodiments, the thickness of the first permeable unit 120 is 0.2 mm, the outer contour length is 5.3 m, and the width is 2.4 m.

[0080] In some of these embodiments, the first permeable unit 120 is a sand-free macroporous permeable concrete with a strength of C30.

[0081] In some of these embodiments, the cross-section of the water storage unit 130 is rectangular.

[0082] In some of these embodiments, the length of the water storage unit 130 is 4.0 m and the width is 1.0 m.

[0083] The thickness of the water storage unit 130 depends on the distance between the groundwater level and the ground surface.

[0084] When the distance between the groundwater level and the ground surface is less than or equal to 1 m, the thickness of the water storage unit 130 is 0.4 m.

[0085] In some of these embodiments, the water storage unit 130 is a number of finished PP water storage modules with a compressive strength of not less than 40 N / mm 2 and a porosity greater than 93%. Among them, the finished PP water storage module has a length of 1 m, a width of 0.5 m, and a height of 0.4 m, and the finished PP water storage modules are arranged in one layer.

[0086] When the distance between the groundwater level and the ground surface is greater than 1 m, the thickness of the water storage unit 130 is 0.8 m.

[0087] In some of these embodiments, the water storage unit 130 is a number of finished PP water storage modules with a compressive strength of not less than 40 N / mm 2 and a porosity greater than 93%. Among them, the finished PP water storage module has a length of 1 m, a width of 0.5 m, and a height of 0.4 m, and the finished PP water storage modules are arranged in two layers, and the upper layer and the lower layer are arranged in an overlapping manner.

[0088] In some of these embodiments, the top surface of the first overflow unit 140 is 0.03 m higher than the top surface of the first greening unit 110.

[0089] The size of the first overflow unit 140 matches the size of the first greening unit 110. Generally, the radial size of the first overflow unit 140 is smaller than the radial size of the first greening unit 110, and the height of the first overflow unit 140 is greater than the thickness of the first greening unit 110.

[0090] In some of these embodiments, the cross-section of the first overflow unit 140 is circular.

[0091] In some of these embodiments, the diameter of the first overflow unit 140 is 0.2 m.

[0092] In some of these embodiments, the first overflow unit 140 is an overflow pipe.

[0093] The top surface of the first drainage unit 150 is flush with the top surface of the water storage unit 130.

[0094] The size of the first drainage unit 150 matches the size of the water storage unit 130. Generally, the radial dimension of the first drainage unit 150 is smaller than the height of the water storage unit 130.

[0095] In some of these embodiments, the cross-section of the first drainage unit 150 is circular.

[0096] In some of these embodiments, the diameter of the first drainage unit 150 is 0.2 m.

[0097] In some of these embodiments, the first drainage unit 150 is a UPVC plastic drainage pipe.

[0098] Furthermore, the water storage parking space structure 100 further includes a first water seepage unit 160, a second water permeable unit 170, a second water seepage unit 180, a first foundation unit 190, a first filtering unit 1100, and a second filtering unit 1110. Among them, the first water seepage unit 160 is arranged at the bottom of the first greening unit 110, the bottom of the first water permeable unit 120, and the top of the water storage unit 130; the second water permeable unit 170 is arranged at the bottom of the water storage unit 130; the second water seepage unit 180 is arranged at the bottom of the water storage unit 130; the top of the first foundation unit 190 is provided with the first greening unit 110, the first water permeable unit 120, and the water storage unit 130; the first filtering unit 1100 is arranged on the outer surface of the water storage unit 130 to prevent the surrounding soil from entering the interior of the water storage unit 130; the second filtering unit 1110 is arranged on the top of the first overflow unit 140 to prevent sundries from entering the interior of the first overflow unit 140; the thickness of the first water seepage unit 160 is 0.15 m to 0.2 m; the thickness of the second water seepage unit 180 is 0.1 m to 0.15 m; the material of the first water seepage unit 160 is natural graded sand and gravel; the material of the second water seepage unit 180 is coarse sand.

[0099] The size of the first water seepage unit 160 matches the size of the first water permeable unit 120. Generally, the radial dimension of the first water seepage unit 160 is equal to the radial dimension of the outer contour of the first water permeable unit 120.

[0100] In some of these embodiments, the cross-section of the first water seepage unit 160 is rectangular.

[0101] In some of these embodiments, the length of the first water seepage unit 160 is 5.3 m, the width is 2.4 m, and the thickness is 0.15 m.

[0102] In some of these embodiments, the first water seepage unit 160 is a sand and gravel water seepage layer.

[0103] The size of the second water-permeable unit 170 matches the size of the water storage unit 130. Generally, the radial size of the second water-permeable unit 170 is equal to the radial size of the water storage unit 130.

[0104] In some of these embodiments, the cross-section of the second water-permeable unit 170 is rectangular.

[0105] In some of these embodiments, the length of the second water-permeable unit 170 is 4.0 m and the width is 1.0 m.

[0106] In some of these embodiments, the thickness of the second water-permeable unit 170 is not less than 0.5 mm.

[0107] In some of these embodiments, the overlapping length at the overlap of the second water-permeable unit 170 is not less than 0.15 m.

[0108] In some of these embodiments, the second water-permeable unit 170 is a water-permeable geotextile with a unit area mass of not less than 300 g / ㎡.

[0109] The size of the second water-seepage unit 180 matches the size of the water storage unit 130. Generally, the radial size of the second water-seepage unit 180 is greater than the radial size of the water storage unit 130.

[0110] In some of these embodiments, the cross-section of the second water-seepage unit 180 is rectangular.

[0111] In some of these embodiments, the length of the second water-seepage unit 180 is 4.2 m, the width is 1.2 m, and the thickness is 0.1 m.

[0112] In some of these embodiments, the second water-seepage unit 180 is a coarse sand cushion layer.

[0113] In some of these embodiments, the cross-section of the first foundation unit 190 is concave. Specifically, the first foundation unit 190 includes a first foundation element, a first groove element, and a second groove element. Among them, the top of the first foundation element is provided with a first greening unit 110, a first water-permeable unit 120, and a first water-seepage unit 160; the first groove element is arranged in the middle of the first foundation element, and the inside of the first groove element is provided with a water storage unit 130; the second groove element is arranged at the bottom of the first groove element, and the second water-permeable unit 170 and the second water-seepage unit 180 are sequentially arranged from top to bottom inside the second groove element.

[0114] The size of the first foundation unit 190 matches the size of the first water-seepage unit 160. Generally, the radial size of the first foundation element is equal to the radial size of the first water-seepage unit 160.

[0115] The size of the first basic unit 190 matches the size of the water storage unit 130. Generally, the thickness of the first basic element is greater than the thickness of the water storage unit 130, and the radial dimension of the first groove element is equal to the radial dimension of the water storage element.

[0116] The size of the first basic unit 190 matches the size of the first water infiltration unit 160. Generally, the radial dimension of the second groove element is equal to the radial dimension of the first water infiltration unit 160.

[0117] In some of these embodiments, the length of the first basic element is 5.3 m and the width is 2.4 m.

[0118] In some of these embodiments, the first basic unit 190 is rammed plain soil with a compactness of not less than 93%.

[0119] The first filtering unit 1100 is disposed to cover the four side surfaces of the water storage unit 130 respectively.

[0120] The size of the first filtering unit 1100 matches the size of the water storage unit 130. Generally, the height of the first filtering unit 1100 is equal to the thickness of the water storage unit 130.

[0121] In some of these embodiments, the height of the first filtering unit 1100 is 0.4 m.

[0122] In some of these embodiments, the thickness of the first filtering unit 1100 is not less than 0.5 mm.

[0123] In some of these embodiments, the first filtering unit 1100 is a permeable geotextile with a unit area mass of not less than 300 g / ㎡.

[0124] In some of these embodiments, the connection method between the second filtering unit 1110 and the first overflow unit 140 includes but is not limited to snap connection and the like.

[0125] The size of the second filtering unit 1110 matches the size of the first overflow unit 140. Generally, the radial dimension of the second filtering unit 1110 is equal to the inner diameter of the first overflow unit 140.

[0126] In some of these embodiments, the cross-section of the second filtering unit 1110 is circular.

[0127] In some of these embodiments, the second filtering unit 1110 includes but is not limited to a floor drain grate.

[0128] The construction method of the present utility model is as follows:

[0129] According to the general layout plan, determine the location of the water storage parking space structure 100, divide the catchment area according to the site, calculate the size of the water storage unit 130, and calibrate the ground size;

[0130] Remove the miscellaneous soil on the ground, and excavate manually or mechanically to the bottom design elevation of the water storage unit 130, then fill and tamp the first basic unit 190;

[0131] Sequentially fill the second water-permeable unit 180 and the second permeable unit 170 inside the first basic unit 190, and then assemble the water storage unit 130 on the upper part of the second permeable unit 170;

[0132] Vertically and horizontally install the first overflow unit 140 and the first drainage unit 150 on the top and the upper part of the side of the water storage unit 130 respectively, then wrap the water storage unit 130 with the first filtering unit 1100, and install the second filtering unit 1110 on the top of the first overflow unit 140;

[0133] Within the contour line range of the water storage parking space structure 100, lay the first water-permeable unit 160 in a whole and then level and compact it;

[0134] Set up a formwork on the top of the first water-permeable unit 160 according to the size of the first greening unit 110, cast the first permeable unit 120 in situ. After the first permeable unit 120 solidifies and stabilizes, remove the formwork, and backfill and plant the first greening unit 110 in the middle area.

[0135] The working principle of the present utility model is as follows:

[0136] The first greening unit 110 is located in the middle position of the water storage parking space structure 100 and does not come into contact with the wheels when the vehicle is parked. The area of the first greening unit 110 can be included in the total planned greening area;

[0137] The first permeable unit 120 is arranged around the first greening unit 110 and covers the area where the wheels may pass when the vehicle is parked, and is used to bear the load of the vehicle;

[0138] After the rainwater on the hard pavement structure flows into the water storage parking space structure 100, it enters the water storage unit 130 through the first overflow unit 140, the greening unit, and the first permeable unit 120. The rainwater stored in the water storage unit 130 seeps into the surrounding soil to supplement the groundwater by infiltration, and the infiltration time is controlled within 12 to 24 hours;

[0139] When the rainwater volume exceeds the volume of the design return period, the water level inside the water storage unit 130 keeps rising. When the water level reaches the elevation of the first drainage unit 150, the excess rainwater can be discharged to the water collection structure through the first drainage unit 150.

[0140] During heavy rain, when the soil is saturated with water and the water depth in the water storage parking space structure 100 is 30 mm, the rainwater volume is 0.38 m 3 , the water storage volume of the water storage unit 130 is 0.8 m 3 , and the total effective water storage volume of a standard water storage parking space structure 100 during heavy rain is 1.18 m 3 .

[0141] The advantages of the present utility model are that by arranging a first overflow unit communicating with the water storage unit inside the first greening unit, the water storage unit can quickly store the rainwater flowing in from the hard pavement structure during heavy rain, and then slowly infiltrate into the surrounding soil to supplement groundwater, solving the problems that the existing ecological parking spaces cannot bear the rainwater from the hardened ground in adjacent areas; at the same time, a first drainage unit communicating with the water collection structure is arranged at the top of the side of the water storage unit, which can timely drain the rainwater exceeding the design return period to prevent the parking space from being flooded.

[0142] Embodiment 2

[0143] This embodiment relates to the drainage parking space structure of the present utility model.

[0144] As Figure 3 shown, a drainage parking space structure 200 is communicated with the water storage parking space structure 100 described in any one of Embodiments 1 to 2, and is used for draining water to the water storage parking space structure 100, including a second greening unit 210, a third permeable unit 220, a second overflow unit 230 and a second drainage unit 240. Among them, the third permeable unit 220 is arranged around the second greening unit 210; the second overflow unit 230 is arranged in the second greening unit 210, and the top of the second overflow unit 230 protrudes from the top of the second greening unit 210 and is used for introducing the ground water accumulation into the water storage unit 130 of the water storage parking space structure 100; the second drainage unit 240 is respectively communicated with the second overflow unit 230 and the water collection structure, and is used for introducing the ground water accumulation into the water storage unit 130 of the water storage parking space structure 100.

[0145] In some of these embodiments, the length of the drainage parking space structure 200 is 5.3 m and the width is 2.4 m.

[0146] In some of these embodiments, the length of the second greening unit 210 is 3.3 m, the width is 0.8 m, and the thickness is 0.2 mm.

[0147] In some of these embodiments, the second greening unit 210 includes but is not limited to planting lawns.

[0148] The size of the third water-permeable unit 220 matches the size of the second greening unit 210. Generally, the thickness of the third water-permeable unit 220 is equal to the thickness of the second greening unit 210, and the radial dimension of the inner contour of the third water-permeable unit 220 is equal to the radial dimension of the second greening unit 210.

[0149] In some of these embodiments, the cross-section of the third water-permeable unit 220 is in the shape of an annular rectangle.

[0150] In some of these embodiments, the thickness of the third water-permeable unit 220 is 0.2 mm, the length of the outer contour is 5.3 m, and the width is 2.4 m.

[0151] In some of these embodiments, the third water-permeable unit 220 is a C30 non-sand macroporous permeable concrete with a certain strength.

[0152] In some of these embodiments, the top surface of the second overflow unit 230 is 0.03 m higher than the top surface of the second greening unit 210.

[0153] The size of the second overflow unit 230 matches the size of the second greening unit 210. Generally, the radial dimension of the second overflow unit 230 is smaller than the radial dimension of the second greening unit 210, and the height of the second overflow unit 230 is greater than the thickness of the second greening unit 210.

[0154] In some of these embodiments, the cross-section of the second overflow unit 230 is circular.

[0155] In some of these embodiments, the diameter of the second overflow unit 230 is 0.2 m.

[0156] In some of these embodiments, the second overflow unit 230 is an overflow pipe.

[0157] The top surface of the second drainage unit 240 is not set higher than the top surface of the water storage unit 130.

[0158] In some of these embodiments, the connection manner between the second drainage unit 240 and the second overflow unit 230 includes but is not limited to integral molding and connection by pipe connectors.

[0159] The size of the second drainage unit 240 matches the size of the water storage unit 130. Generally, the radial dimension of the second drainage unit 240 is smaller than the height of the water storage unit 130.

[0160] In some of these embodiments, the cross-section of the second drainage unit 240 is circular.

[0161] In some of these embodiments, the diameter of the second drainage unit 240 is 0.2 m.

[0162] In some of these embodiments, the second drainage unit 240 is a UPVC plastic drainage pipe.

[0163] Furthermore, the drainage parking space structure 200 further includes a third water infiltration unit 250, a second foundation unit 260, and a third filtration unit 270. Among them, the third water infiltration unit 250 is disposed at the bottom of the second greening unit 210 and the bottom of the third permeable unit 220; the second foundation unit 260 has the second greening unit 210 and the third permeable unit 220 disposed on its top; the third filtration unit 270 is disposed on the top of the second overflow unit 230 for preventing debris from entering the interior of the second overflow unit 230; the length of the drainage parking space structure 200 is 5.3 m, and the width is 2.4 m; the length of the second greening unit 210 is 3.3 m, the width is 0.8 m, and the thickness is 0.2 m; the thickness of the third permeable unit 220 is 0.2 m; the material of the third permeable unit 220 is pervious mortarless macroporous pervious concrete; the material of the third water infiltration unit 250 is natural graded sand and gravel.

[0164] The size of the third water infiltration unit 250 matches the size of the third permeable unit 220. Generally, the radial dimension of the third water infiltration unit 250 is equal to the radial dimension of the outer contour of the third permeable unit 220.

[0165] In some of these embodiments, the cross-section of the third water infiltration unit 250 is rectangular.

[0166] In some of these embodiments, the third water infiltration unit 250 has a length of 5.3 m, a width of 2.4 m, and a thickness of 0.15 m.

[0167] In some of these embodiments, the third water infiltration unit 250 is a sand and gravel water infiltration layer.

[0168] The size of the second foundation unit 260 matches the size of the third water infiltration unit 250. Generally, the radial dimension of the second foundation unit 260 is equal to the radial dimension of the third water infiltration unit 250.

[0169] In some of these embodiments, the second foundation unit 260 has a length of 5.3 m and a width of 2.4 m.

[0170] In some of these embodiments, the second foundation unit 260 is rammed plain soil with a compaction degree not lower than 93%.

[0171] In some of these embodiments, the connection manner between the third filtration unit 270 and the second overflow unit 230 includes but is not limited to snap connection and the like.

[0172] The size of the third filtration unit 270 matches the size of the second overflow unit 230. Generally, the radial dimension of the third filtration unit 270 is equal to the inner diameter of the second overflow unit 230.

[0173] In some of these embodiments, the cross-section of the third filtering unit 270 is circular.

[0174] In some of these embodiments, the third filtering unit 270 includes, but is not limited to, a floor drain grate.

[0175] The construction method of the present utility model is as follows:

[0176] According to the general layout plan, a drainage parking space structure 200 is arranged on the side of the water storage parking space structure 100;

[0177] According to the site division, the catchment area is divided, the size of the water storage unit 130 is calculated, the ground size is marked, the ground miscellaneous soil is removed, and the second foundation unit 260 is filled and tamped;

[0178] The second overflow unit 230 and the second drainage unit 240 are respectively vertically and horizontally installed on the upper part of the second foundation unit 260, and at the same time, the second drainage unit 240 is communicated with the water storage unit 130 of the adjacent drainage parking space structure 200;

[0179] Within the contour line range of the drainage parking space structure 200, the third permeable water unit 250 is laid and leveled and rammed;

[0180] According to the size of the second greening unit 210, a formwork is set on the top of the third permeable water unit 250, the third permeable water unit 220 is cast in place, the formwork is removed after the third permeable water unit 220 solidifies and stabilizes, and the second greening unit 210 is backfilled and planted in the middle area.

[0181] The working principle of the present utility model is as follows:

[0182] The second greening unit 210 is located in the middle of the water storage parking space structure 100 and is not in contact with the wheels when the vehicle is parked. The area of the second greening unit 210 can be included in the total planned greening area;

[0183] The second permeable water unit 170 is arranged around the second greening unit 210 to cover the area that the wheels of the vehicle may pass through when parked, and is used to bear the load of the vehicle;

[0184] After the rainwater on the hard road surface structure flows into the drainage parking space structure 200, it enters the interior of the water storage unit 130 of the adjacent water storage parking space structure 100 through the second overflow unit 230 and the second drainage unit 240. The rainwater stored in the water storage unit 130 seeps into the surrounding soil to supplement the groundwater by infiltration, and the infiltration time is controlled within 12 to 24 hours.

[0185] The advantages of the present utility model are that by respectively arranging a second overflow unit inside and a side part of the drainage parking space structure, and a second drainage unit communicated with the water storage parking structure, it is not necessary to arrange multiple water storage parkings to meet the water storage demand of the rainwater flowing into the rigid pavement structure, thus reducing the construction cost.

[0186] Embodiment 3

[0187] This embodiment relates to the ecological parking space system of the present utility model.

[0188] As Figures 4 to 5 shown, an ecological parking space system for the sponge city water storage system includes at least one water storage parking space structure 100 as described in any one of Embodiments 1 to 2, at least one drainage parking space structure 200 as described in any one of Embodiments 3 to 4, a rigid pavement structure 300, and a water collecting structure 400. Among them, the rigid pavement structure 300 is respectively arranged adjacent to the water storage parking space structure 100 and the drainage parking space structure 200, and the top surface of the rigid pavement structure 300 is higher than the top surface of the first water permeable unit 120 of the water storage parking space structure 100 and the top surface of the third water permeable unit 220 of the drainage parking space structure 200; the water collecting structure 400 is arranged at the bottom of the rigid pavement structure 300 and is communicated with the first drainage unit 150 of the water storage parking space structure 100; the ratio of the number of the drainage parking space structures 200 to the number of the water storage parking space structures 100 is ≥2.

[0189] When the distance between the groundwater level and the ground is less than or equal to 1 m, the ratio of the number of the drainage parking space structures 200 to the number of the water storage parking space structures 100 is 2, that is, each water storage parking space structure 100 corresponds to two drainage parking space structures 200. Specifically, a drainage parking space structure 200 is respectively arranged on the side part of each water storage parking space structure 100.

[0190] When the distance between the groundwater level and the ground is greater than or equal to 1 m, the ratio of the number of the drainage parking space structures 200 to the number of the water storage parking space structures 100 is 4, that is, each water storage parking space structure 100 corresponds to four drainage parking space structures 200. Specifically, two drainage parking space structures 200 are respectively arranged on the side part of each water storage parking space structure 100.

[0191] In some of the embodiments, the top surface of the rigid pavement structure 300 is 0.05 m higher than the top surface of the first water permeable unit 120 and the top surface of the third water permeable unit 220.

[0192] In some of the embodiments, the top surface of the rigid pavement structure 300 is inclined towards the water storage parking space structure 100, and the slope is 0.3%.

[0193] In some of the embodiments, the rigid pavement structure 300 is a hardened road.

[0194] In some of these embodiments, the water collecting structure 400 is a rain inspection well.

[0195] The above are only the preferred embodiments of the present utility model, and do not limit the implementation manners and protection scope of the present utility model. For those skilled in the art, it should be realized that all the equivalent replacements and obvious changes made by using the description and illustrations of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A water storage parking space structure, used in a sponge city water storage system, characterized in that: include: First greening unit; A first water-permeable unit, wherein the first water-permeable unit is arranged around the first greening unit; A water storage unit, wherein the water storage unit is arranged at the lower part of the first greening unit, and the edge of the water storage unit does not exceed the edge of the first permeable unit; A first overflow unit, wherein the first overflow unit is disposed on the first greening unit, the top of the first overflow unit protrudes from the top of the first greening unit and is connected to the water storage unit, and is used to introduce ground water into the water storage unit; The first drainage unit is connected to the water storage unit and the water collection structure respectively, and is used for timely draining rainwater that exceeds the capacity of the water storage unit.

2. The water storage parking space structure according to claim 1, characterized in that: The thickness of the first greening unit is 0.2m to 0.3m; The thickness of the first water-permeable unit is 0.2m to 0.3m; and / or The material of the first permeable unit is permeable sand-free macroporous permeable concrete.

3. The water storage parking space structure according to claim 1 or 2, characterized in that: Also includes: A first water seepage unit, wherein the first water seepage unit is disposed at the bottom of the first greening unit, the bottom of the first water permeable unit, and the top of the water storage unit; and / or a second water permeable unit, the second water permeable unit being disposed at the bottom of the water storage unit; and / or A second water seepage unit, wherein the second water seepage unit is disposed at the bottom of the water storage unit; and / or A first basic unit, wherein the first greening unit, the first permeable unit, and the water storage unit are arranged on the top of the first basic unit; and / or a first filter unit, the first filter unit being arranged on the outer surface of the water storage unit and being used to prevent surrounding soil from entering the interior of the water storage unit; and / or The second filter unit is arranged on the top of the first overflow unit and is used to prevent debris from entering the interior of the first overflow unit.

4. The water storage parking space structure according to claim 3 is characterized in that The thickness of the first water seepage unit is 0.15m to 0.2m; The thickness of the second water seepage unit is 0.1m to 0.15m and / or The material of the first water seepage unit is natural graded sand and gravel; The material of the second water seepage unit is coarse sand.

5. A drainage parking space structure, used in a sponge city water storage system, connected to the water storage parking space structure according to any one of claims 1 to 4, and used to drain water to the water storage parking space structure, characterized in that: include: Second greening unit; A third water-permeable unit, wherein the third water-permeable unit is arranged around the second greening unit; A second overflow unit, wherein the second overflow unit is arranged on the second greening unit, and the top of the second overflow unit is arranged to protrude from the top of the second greening unit, and is used to introduce ground water into the water storage unit of the water storage parking structure; The second drainage unit is connected to the second overflow unit and the water collecting structure respectively, and is used to introduce the ground water into the water storage unit of the water storage parking space structure.

6. The drainage parking space structure according to claim 5, characterized in that: The thickness of the second greening unit is 0.2m to 0.3m; The thickness of the third water permeable unit is 0.2m to 0.3m; and / or The material of the third permeable unit is permeable sand-free macroporous permeable concrete.

7. The drainage parking space structure according to claim 5 or 6, characterized in that: Also includes: A third water seepage unit, the third water seepage unit being arranged at the bottom of the second greening unit and the bottom of the third water permeable unit; and / or A second basic unit, the second greening unit and the third water-permeable unit are arranged on the top of the second basic unit; and / or The third filter unit is arranged on the top of the second overflow unit to prevent debris from entering the interior of the second overflow unit.

8. The drainage parking space structure according to claim 7, characterized in that: The thickness of the third water seepage unit is 0.15m to 0.2m; and / or The material of the third water seepage unit is natural graded sand and gravel.

9. An ecological parking space system, used in a sponge city water storage system, characterized in that: include: At least one water storage parking space structure as claimed in any one of claims 1 to 4; At least one drainage parking space structure according to any one of claims 5 to 8; A hard pavement structure, wherein the hard pavement structure is disposed adjacent to the water storage parking space structure and the drainage parking space structure, respectively, and the top surface of the hard pavement structure is disposed higher than the top surface of the first permeable unit of the water storage parking space structure and the top surface of the third permeable unit of the drainage parking space structure; A water collection structure is provided at the bottom of the hard pavement structure and is connected to the first drainage unit of the water storage parking space structure.

10. The ecological parking space system according to claim 9, characterized in that: The ratio of the number of the drainage parking space structures to the number of the water storage parking space structures is ≥2.

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