Sinking planting apron structure system with drainage and storage functions

Abstract

The utility model discloses a sinking planting aproll structure system with drainage and storage functions, which comprises a sinking planting aproll area positioned on the outer side of a building outer wall and arranged underground, and the sinking planting aproll structure system sequentially comprises a rammed earth layer, a graded pebble mortar layer, a concrete layer, a ceramsite layer with drainage and storage functions, a filter layer and a planting soil layer from bottom to top, the planting soil layer is filled in the sunken planting apron area; a water pipe capable of realizing drainage and water storage functions is buried in the ceramsite layer; the water pipe is communicated with the rainwater collecting system; the side, close to the building outer wall, of the concrete layer extends upwards from the bottom, the extended upper end face is higher than the planting soil layer, and the filtering layer is located on the outer side of the planting soil layer and surrounds the planting soil layer. The aproll sinking and landscape planting are combined, rainwater is collected and stored through the water facility arranged in the sinking aproll, and meanwhile, the reverse irrigation of vegetation in the planting aproll is achieved through the cooperation of the rainwater collection and utilization system and the water storage facility.

Description

Technical Field

[0001] The utility model relates to the technical field of water dispersion structures, in particular to a sinking planting water dispersion structure system with drainage and storage functions. Background Art

[0002] Sponge City: The internationally accepted term for "low-impact development of rainwater system construction" is a new concept of urban rainwater management. It draws on the characteristics of sponges in nature, that is, it has excellent water absorption, water storage, water infiltration and water purification capabilities, and can maintain good elasticity and adaptability while adapting to environmental changes and responding to natural disasters. The construction of sponge cities better realizes the accumulation, infiltration and purification of rainwater in urban areas, and also promotes the utilization of rainwater resources and the protection of the ecological environment.

[0003] Sponge building: It is a concept and method of building development. By strengthening urban planning and construction management, the building can absorb, store and release rainwater, effectively control rainwater runoff, and achieve natural accumulation, natural infiltration and natural purification. At the same time, the collected rainwater resources will be comprehensively treated and controlled and utilized through certain means.

[0004] Drainage: In order to protect the wall foundation from erosion by rainwater, the ground around the building's exterior walls is hardened to make an outward-inclined slope so that rainwater from the roof and exterior walls can be drained to distant building structures. It is one of the effective measures to protect the building foundation, and is usually a hardened structure.

[0005] Water shortage, water pollution and urban flood disasters, these three major water resource problems are widespread throughout the world and are also important factors restricting urban development. In the traditional urban construction model, hardened roads and reinforced concrete buildings are often used as the main load-bearing bodies with poor infiltration capacity. As a result, every time there is a heavy rain, it is mainly controlled by "gray" facilities such as pipes and pumping stations, with "quick removal" and "end concentration" as the main planning and design concepts, which often leads to flooding every time it rains, and droughts and floods change rapidly. As a result, the construction of "sponge cities" and "sponge-type buildings" with a new connotation of low-impact development mode was born, becoming a hot topic in academic and practical research in various countries in recent years.

[0006] Sponge city is a new generation of urban stormwater management concept, which means that the city can be like a sponge, with good elasticity in adapting to environmental changes and responding to natural disasters caused by rainwater, and has excellent water absorption, water storage, water infiltration and water purification capabilities. Its construction follows the principle of ecological priority, combining natural approaches with artificial measures, and through a variety of technical approaches such as "infiltration, retention, storage, purification, use, and discharge", it realizes a benign urban hydrological cycle, improves the ability to infiltrate, regulate, purify, utilize and discharge runoff rainwater, and maintains or restores the city's sponge function. The sponge body required for the construction of a sponge city includes natural water systems such as rivers, lakes, and ponds, as well as green spaces, gardens, permeable roads and buildings.

[0007] The guiding concept of urban development planning and design and architectural design and construction has gradually changed from "quick drainage" and "end concentration" control to "slow drainage and slow release" and "source dispersion" to reduce and avoid flood disasters and their impacts, and effectively collect and utilize rainwater. At present, there are existing national standards for sponge city construction, such as "Parity Standard for Sponge City Construction" GB / T 51345-2018, and the national architectural standard design atlas "Sponge-type Buildings and Community Rainwater Control and Utilization" 17S705 for reference.

[0008] The construction of traditional scattered water projects cannot be organically combined with landscape planting, cannot effectively collect and utilize rainwater, and cannot meet the needs of urban water conservation and energy conservation and emission reduction. Therefore, it is necessary to improve and optimize the design of building scattered water structures based on national standards and atlases and the design concept of sponge cities to provide a new type of sunken planting scattered water structure system with drainage and storage functions. Utility Model Content

[0009] The purpose of the utility model is to overcome the shortcomings and defects of the prior art and to provide a novel sunken planting water dispersion structure system with drainage and storage functions.

[0010] A sunken planting and water dispersion structure system with drainage and water storage functions is used in a building structure and is used when backfilling is performed after the main building construction is completed. It includes a sunken planting and water dispersion area arranged under the ground and located outside the building's outer wall. Its structure, from bottom to top, is a rammed earth layer, a graded pebble mortar layer, a concrete layer, a ceramsite layer with drainage and water storage functions, a filter layer, and a planting soil layer. The planting soil layer is filled in the sunken planting and water dispersion area; a water pipe that can achieve drainage and water storage functions is buried in the ceramsite layer, and a number of water holes are evenly or unevenly arranged on the pipe wall of the water pipe; the water pipe is connected to a rainwater collection system; the concrete layer extends upward from the bottom on one side close to the building's outer wall, and the upper end face after extension is higher than the planting soil layer, and the filter layer is on the outside of the planting soil layer, surrounding the planting soil layer.

[0011] Wherein, the filter layer is made of geotextile.

[0012] The rammed earth layer has a downward and outward slope of 3% to 5%.

[0013] Wherein, a vertical wall is arranged on the outer side of the sunken planting and water dispersion area, and the rainwater collection system is located on the outer side of the vertical wall.

[0014] Wherein, the rainwater collection system includes a rainwater collection well.

[0015] Wherein, a permeable grate is arranged above the rainwater collection well, and the permeable grate is covered with pebbles.

[0016] The outside of the rainwater collection well is a road surface with a certain slope, and the slope is used to allow water on the road surface to flow into the rainwater collection well.

[0017] Wherein, there is a protective wall or curbstone between the rainwater collection well and the road surface.

[0018] Among them, the outer side of the building exterior wall is arranged with a waterproof layer, a thermal insulation layer and a protective layer in sequence from the inside to the outside.

[0019] Among them, the inner upper part of the sunken planting and water dispersion area is opposite to the outer wall enclosure structure of the building, and the inner lower part is opposite to the side wall of the building basement.

[0020] Under the premise of meeting the functional requirements of the building, the utility model breaks the traditional engineering construction method of hardened scattered water, innovatively combines the sinking of scattered water with landscape planting, and uses the water facilities with drainage, water and water storage functions arranged in the sunken scattered water to collect and store rainwater. At the same time, it cooperates with the rainwater collection and utilization system and the water storage facilities to achieve reverse irrigation of the vegetation in the planted scattered water; the sponge-type building plays a role in collecting rainwater, so as to achieve the purpose of controlling and utilizing rainwater (surplus water), and play a role in saving water, energy and emission reduction while alleviating the pressure of urban waterlogging. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a cross-sectional view of the sunken planting water dispersion structure system with drainage and storage functions of the utility model.

[0022] Figure 2 It is a three-dimensional diagram of the sunken planting water dispersion structure system with drainage and storage functions of the utility model.

[0023] Figure 3 The utility model is a simplified diagram of the rainwater collection and reuse process of the sunken planting water dispersion structure system with drainage and storage functions. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0025] like Figure 1 to Figure 2 As shown, the sunken planting and water dispersion structure system with drainage and water storage functions of the embodiment of the utility model is used in the building structure and is used when the backfill is performed after the construction of the main building is completed. It includes a sunken planting and water dispersion area arranged under the ground and located outside the building outer wall 8. Its structure is, from bottom to top, a plain soil rammed layer 21, a graded pebble mortar layer 11, a concrete layer 18, a ceramsite layer 19 with drainage and water storage functions, a filter layer 20, and a planting soil layer 17, and the planting soil layer is filled in the sunken planting and water dispersion area; a water pipe 10 capable of achieving drainage and water storage functions is buried in the ceramsite layer, and a number of water holes are evenly or unevenly arranged on the pipe wall of the water pipe 10 for achieving drainage and water storage through the ceramsite layer; the water pipe is connected to a rainwater collection system 16; the concrete layer extends upward from the bottom on one side close to the building outer wall, and the upper end face after extension is higher than the planting soil layer, and the filter layer surrounds the planting soil layer on the outside of the planting soil layer, and the bottom below the plain soil rammed layer 21 is soil.

[0026] In some embodiments, the graded pebble mortar layer is 150 mm thick, which is formed by first constructing a graded pebble cushion layer with a thickness of 150 mm, and then pouring M2.5 mixed mortar to solidify, and the slope is 3% to 5% outward. In some embodiments, the rammed soil layer has a downward and outward slope of 3% to 5%. In some embodiments, the filter layer is formed by geotextile or other filter materials, but is not limited thereto.

[0027] In some embodiments, the concrete layer is 60 mm thick, is C20 fine stone concrete, and has an outward slope of 3% to 5%. During the construction of the C20 fine stone concrete, it is ground as it is beaten to eventually form the required concrete layer. In some embodiments, the ceramsite layer with drainage and water storage functions is a thin inner layer (100 mm thick at the thinnest point) and thick outer layer, and the top surface is a flat structure, and a water pipe with a permeable drainage function and a water storage function is arranged inside.

[0028] In some embodiments, the planting soil layer is used to plant corresponding vegetation 14 to cover the planting soil layer. In some embodiments, a vertical wall 1 is arranged outside the sunken planting water dispersion area, and the rainwater collection system 16 is located outside the vertical wall. In some embodiments, the rainwater collection system includes a rainwater collection well. In some embodiments, a permeable grate 2 is arranged above the rainwater collection well, and pebbles 15 are covered above the permeable grate.

[0029] In some embodiments, the outside of the rainwater collection well is a road surface 4 with a certain slope, and the slope is used to allow water on the road surface to flow into the rainwater collection well. In some embodiments, there is a protective vertical wall or curb 3 between the rainwater collection well and the road surface, and its upper end is connected to the road surface outside, and below the road surface is a soil layer (not shown).

[0030] In some embodiments, the outer side of the building outer wall 8 is sequentially arranged with a waterproof layer 7, a thermal insulation layer 12 and a protective layer 13 from the inside to the outside, which is a conventional construction structure of the building outer wall under the prior art. An indoor floor 6 is provided on the indoor floor inside the building outer wall.

[0031] In some implementation schemes, the inner upper part of the sunken planting and dispersion area is opposite to the building exterior wall enclosure structure, and the inner lower part is opposite to the building basement side wall 5, wherein a sealing structure 9 is arranged between the building basement side wall 5 and the graded pebble mortar layer 11, including a water-stop sealant and wood fiber filler, which are filled in the corresponding gaps to prevent water seepage.

[0032] The brief construction process of the sunken planting water dispersion structure system with drainage and storage functions of the utility model is as follows: (taking the structural system building with a basement as an example):

[0033] (1) When backfilling is carried out after the main construction of the building is completed, the waterproofing, insulation and protective layer construction of the main body outer wall including the basement shall be completed first, and the foundation soil shall be compacted along the length of the main body of the building to the foundation surface of the sinking watershed, and the slope shall be 3% to 5% outward. (2) The graded pebble cushion layer shall be constructed with a thickness of 150mm, and then M2.5 mixed mortar shall be poured. (3) The brick wall and the top shall be constructed at the sinking watershed (the height and style can be adjusted according to the design requirements), and the casing of the pre-buried drainage and water storage pipes shall be coordinated during the construction. (4) The C20 fine stone concrete base shall be constructed with a thickness of 60mm, which shall be polished as it is beaten, and the slope shall be 3% to 5% outward. (5) After positioning the water pipes according to the spacing, lay the expanded clay drainage and water storage layer in layers. The thinnest part should be no less than 100 mm thick. The water pipes are connected to the special rainwater collection wells or rainwater collection wells that are reliable and can also be used as ground / road surfaces. The rainwater collection wells are connected and communicated with the pipelines of the rainwater collection and utilization system 23 uniformly installed in the site or residential area. The pipelines of the rainwater collection and utilization system 23 are connected to the reservoir 22. (6) A 300g / ㎡ geotextile filter layer is laid along the contact surface of the upper planting soil and the entire section of the lower expanded clay layer, and the joints are bonded or nailed. (7) On the upper part of the scattered water, backfill the planting soil in layers along the exterior walls and vertical walls of the building, in accordance with the professional requirements of landscape architecture. (8) Planting is carried out; the system construction is completed.

[0034] This utility model innovatively arranges the ground water diversion sinking to replace the ground hardened water diversion without infiltration function, uses the covering soil to slowly infiltrate and store the surface runoff rainwater, and combines the water facilities with drainage and water storage functions at the bottom of the sinking water diversion, and uses artificial measures to realize the infiltration and collection of surface runoff rainwater by the building, reducing the terminal discharge pressure, achieving slow discharge and slow release, and reducing emissions at the source. It effectively improves the defect that the traditional hardened water diversion cannot infiltrate rainwater.

[0035] The utility model sinks the hardened water splash originally arranged on the ground of the building, and extends the heat preservation, waterproof and protective layer structures on the building's outer wall to the root of the water splash, thereby ensuring the original function of the building's water splash.

[0036] The utility model also utilizes the internal space after the scattered water sinks, and sets an infiltration pipeline with drainage and water storage functions at the bottom, and covers the ceramsite layer with drainage and water storage functions on the outside. The soil covering the sinking scattered water range serves as a "sponge" medium to slowly infiltrate and store surface runoff rainwater, reduce the terminal discharge pressure, and achieve source emission reduction. It effectively improves the defect that traditional hardened scattered water cannot infiltrate rainwater. At the same time, the rainwater that penetrates to the bottom can be connected to the outdoor rainwater collection well through facilities with drainage and water storage functions, and finally through the rainwater collection system trunk pipe to the reservoir, so as to realize the collection and storage of rainwater and alleviate the pressure of urban waterlogging.

[0037] The utility model cleverly utilizes the space inside the sunken scattered water for planting, replacing the rigid and abrupt ground hardening of traditional buildings, organically combining the building with the garden landscape, forming a unique and harmonious landscape building with a dynamic and balanced composition, adding beauty to the building and the surrounding environment.

[0038] The utility model optimizes the use of the space inside the sinking water distribution. By combining the sinking water distribution structure with the vertical wall setting, a space that can be arranged around the building is formed for planting various types of landscape vegetation. Through certain processing and expression, a dynamic and balanced landscape effect is formed, adding beauty to the building and the surrounding environment. The internal space of the sinking water distribution is similar to a breathable and permeable sponge, with good plant growth conditions inside. At the same time, the runoff rainwater collected on the roof and wall of the building can be effectively used as a water source for irrigation.

[0039] The water facilities with drainage and water storage functions in the sunken planting watershed area of ​​the utility model are interconnected with the external rainwater collection and utilization system, pipelines, and water storage facilities, and have perfect systematization and reliability. The rainwater stored after treatment can also be reused through the system to achieve reverse irrigation of the vegetation in the watershed, thereby achieving the effect of water saving, energy saving and emission reduction.

[0040] The water pipes and ceramsite layers with drainage and water storage functions inside the system of the utility model are relatively permeable bodies, which can realize the two functions of forward drainage and reverse water storage. In engineering practice applications, it should be connected with a special collection well or a rainwater collection well that also serves as the ground (road surface) with reliable use conditions, and connected in parallel with the rainwater collection and utilization system pipelines uniformly set up in the site or residential area, so that the collected rainwater can be stored in a special water reservoir after being processed by the system. During reuse, the water source in the water reservoir can be reused after being pressurized by the system and used as water for irrigation of vegetation in the scattered water. The system of the utility model can realize a full set of processes such as the collection, control, storage and reuse of runoff rainwater, forming a complete system with good reliability, while effectively saving water and playing a role in energy conservation and emission reduction.

[0041] The system of the utility model is based on the design concept of sponge city and sponge-type buildings. The scheme provided aims to utilize and improve the construction measures of traditional buildings to make them "sponge bodies" with natural regulation capabilities: it can reduce the city's consumption of natural water sources, effectively utilize water resources, realize "collection-storage-reuse", and reduce the city's excessive consumption and dependence on water resources; it enables buildings to have better hydrological regulation capabilities, reduce the occurrence of urban waterlogging, and at the same time improve the urban environment and the quality of life of residents. It can protect the ecological environment, improve the ecological functions of the city, protect natural water bodies such as rivers and lakes, improve the ecological functions through the construction of sponge-type buildings, and promote sustainable development.

[0042] The building structure layers and construction materials of the system of the utility model are all technologically mature products, which have been factory-produced in batches and can be directly constructed and installed on site. They have the characteristics of convenient procurement, low cost, short construction period, high construction efficiency and small environmental impact, which are in line with the future development direction of sponge city and green construction technology.

[0043] The system of the utility model can flexibly adjust the increase or decrease of layer structures according to different environmental categories, building functions, styles and structural types, and the accessories and building materials used can be arbitrarily adjusted according to different building categories, building fire resistance levels and earthquake resistance requirements in different regions. It can meet various design requirements, has strong practicality, and has certain social promotion and economic value.

[0044] As people pay more and more attention to environmental protection and resource utilization, the construction of sponge buildings will gradually become an emerging industry, creating a large number of employment opportunities and economic benefits for the society. The system of this utility model is based on the concept of sustainable development, fully responds to the development requirements of sponge cities and green buildings, and combines the guiding ideology of my country's urban development planning and sponge buildings. The solution provided fully retains the traditional advantages of traditional architectural design and construction technology, while integrating the results of technological innovation. The solution is in line with the future development direction of green construction technology and has great application prospects.

[0045] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model.

[0046] Therefore, no matter from which point of view, the embodiments should be regarded as illustrative and non-restrictive, and the scope of the present invention is limited by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

[0047] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. The sunken planting water dispersion structure system with drainage and storage functions is characterized by: It is used in building structures when backfilling is performed after the main construction of the building is completed, including a sunken planting and water-scattering area arranged underground on the outside of the building's exterior wall, and its structure, from bottom to top, is a rammed earth layer, a graded pebble mortar layer, a concrete layer, a ceramsite layer with drainage and water storage functions, a filter layer, and a planting soil layer, and the planting soil layer is filled in the sunken planting and water-scattering area; a water pipe that can achieve drainage and water storage functions is buried in the ceramsite layer, and a number of water holes are evenly or unevenly arranged on the pipe wall of the water pipe; the water pipe is connected to a rainwater collection system; the concrete layer extends upward from the bottom on one side close to the building's exterior wall, and the upper end face after extension is higher than the planting soil layer, and the filter layer is on the outside of the planting soil layer, surrounding the planting soil layer.

2. The sunken planting water dispersion structure system with drainage and storage functions according to claim 1 is characterized in that: The filter layer is made of geotextile.

3. The sunken planting water dispersion structure system with drainage and storage functions according to claim 1 is characterized in that: The rammed earth layer has a downward and outward slope of 3% to 5%.

4. The sunken planting water dispersion structure system with drainage and storage functions according to claim 1 is characterized in that: A vertical wall is arranged on the outer side of the sunken planting and water dispersion area, and the rainwater collection system is located on the outer side of the vertical wall.

5. The sunken planting water dispersion structure system with drainage and storage functions according to claim 1 is characterized in that: The rainwater collection system comprises a rainwater collection well.

6. The sunken planting water dispersion structure system with drainage and storage functions according to claim 5 is characterized in that: A permeable grate is arranged above the rainwater collection well, and the permeable grate is covered with pebbles.

7. The sunken planting water dispersion structure system with drainage and storage functions according to claim 6 is characterized in that: The outside of the rainwater collection well is a road surface with a certain slope, and the slope is used to allow water on the road surface to flow into the rainwater collection well.

8. The sunken planting water dispersion structure system with drainage and storage functions according to claim 7 is characterized in that: There is a protective wall or curbstone between the rainwater collection well and the road surface.

9. The sunken planting water dispersion structure system with drainage and storage functions according to claim 1 is characterized in that: The outer side of the building exterior wall is sequentially arranged with a waterproof layer, a heat-insulating layer and a protective layer from the inside to the outside.

10. The sunken planting water dispersion structure system with drainage and storage functions according to claim 1 is characterized in that: The inner upper part of the sunken planting and water dispersion area is opposite to the outer wall enclosure structure of the building, and the inner lower part is opposite to the side wall of the basement of the building.

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