CN217461213U

CN217461213U - Roof plantation of urban microcirculation agricultural system

Info

Publication number: CN217461213U
Application number: CN202120450322.1U
Authority: CN
Inventors: 李伯钧; 田丹青; 胡伟; 詹书侠; 杨福生; 方君娟; 陈菲; 葛亚英; 朱强
Original assignee: Hangzhou Lecheng Roof Greening Engineering Co ltd; Zhejiang Plant And Flower Research Institute Zhejiang Xiaoshan Cotton And Hemp Research Institute
Current assignee: Hangzhou Lecheng Roof Greening Engineering Co ltd; Zhejiang Plant And Flower Research Institute Zhejiang Xiaoshan Cotton And Hemp Research Institute
Priority date: 2021-03-02
Filing date: 2021-03-02
Publication date: 2022-09-20
Anticipated expiration: 2031-03-02

Abstract

The utility model belongs to the technical field of urban construction, a roof plantation of an urban microcirculation agricultural system, which comprises ridge field blocks and furrows, wherein the ridge field blocks are isolated by the furrows; the farmland block sequentially comprises a roof structure layer, a leveling layer, a waterproof layer, a protective layer, a water storage layer, a filter layer, a substrate layer and a planting layer from bottom to top; the bottom of each furrow and each drainage ditch sequentially comprises a roof structure layer, a leveling layer, a waterproof layer and a protective layer from bottom to top. The advantage of this patent is that roof agriculture removes the guarantee supply, has still built the spare tyre for the urban resident, promotes the ability of bearing any heavy rain or super heavy rain, bears the weight of urban resident vegetables and partial food self-sufficiency, dirty, useless self-purification's ability.

Description

City microcirculation agricultural system's roof plantation

Technical Field

The utility model belongs to the technical field of the urban construction, especially, relate to a city microcirculation agricultural system's roof plantation.

Background

For example, a roof structure and a roof water-storing and draining system disclosed in the chinese utility model patent publication No. CN208280468U, japanese (20181225) are known as a roof water-storing structure. The roof structure includes roof body, cistern and parapet. The roof water storage and drainage system comprises a first water supply pipe, a booster pump, a second water supply pipe, an electromagnetic sprayer, a humidity sensor, a microcontroller and the roof structure. Compared with the prior art, the roof structure and the roof water storage and drainage system have the advantages that water resources are effectively saved and human resources are saved when tap water is watered.

The existing roof planting water storage can not achieve the desired effect or can not achieve the water storage function, irrigation water is used in other modes, and the existing roof planting water storage water cannot bear any heavy rain or extra heavy rain without overflowing and can not bear the self-supply, pollution and waste self-purification capacity of urban resident vegetables and partial food.

Disclosure of Invention

The utility model aims at solving the above-mentioned not good problem of retaining effect is planted on current roof, provides a roof plantation of city microcirculation agricultural system, and this structure plays better retaining water-proof effects through the water-storage layer, can bear any heavy rain or super heavy rain and not excessive, can bear city resident's vegetables and partial food self-supporting, dirty, useless self-purification's ability.

For the purpose of the utility model, the following technical scheme is adopted to realize:

a roof plantation of an urban micro-circulation agricultural system comprises ridge-field blocks and furrows, wherein the ridge-field blocks are isolated by the furrows, furrow prefabricated plates are arranged above the furrows, and at least a walkway prefabricated plate is arranged at a position close to a parapet wall, and a water inlet and outlet ditch is arranged at the bottom of the walkway prefabricated plate; the ridge field block sequentially comprises a roof structure layer, a leveling layer, a waterproof layer, a protective layer, a water storage layer, a filter layer, a substrate layer and a planting layer from bottom to top; the bottoms of the furrows and the drainage ditches sequentially comprise a roof structure layer, a leveling layer, a waterproof layer and a protective layer from bottom to top; the waterproof layer is made of stainless steel or glass fiber reinforced plastic, and a protective layer is not additionally arranged; the waterproof layer (103) is made of SBS flexible material and is additionally provided with a protective layer; the protective layer is made of 30-40mm per unit of fine stone, and the aquifer layer is made of 80-120mm concrete prefabricated hollow brick material with capillary penetration function; the furrow precast slabs and the walkway precast slabs are erected above the water storage layer.

Preferably, the filter layers are made of geotextile materials of 240 g/square meter and above.

Preferably, the cross section of the furrow precast slab is rectangular; and the bottom of the furrow precast slab is provided with a U-shaped notch with a downward opening, and the bottom of the furrow precast slab is arranged on the concrete precast hollow brick of the water storage layer.

Preferably, the cross section of the walkway precast slab is rectangular; the bottom of the walkway precast slab is provided with a rectangular notch; the bottom of the walkway precast slab is arranged on the concrete precast hollow brick of the water storage layer.

Preferably, a water inlet pipe and a water outlet pipe are arranged in the water inlet and drainage ditch, the water inlet of the water inlet pipe is higher than the water storage layer, the water outlet of the water outlet pipe is provided with a movable joint capable of freely rotating, and the water outlet pipe penetrates through the parapet wall and is connected with a water outlet pipeline outside the parapet wall.

According to the technical scheme, the roof plantation of the urban microcirculation agricultural system is characterized in that the concrete precast hollow bricks with capillary penetration function are used as water storage layers, so that water in life can be fully utilized or natural rainwater can be fully utilized, the roof land area is small, but as long as the roof plantation design is fully considered, the population density is not more than 3 ten thousand per square kilometer, and the roof plantation can completely bear the self-supporting, self-cleaning and pollution-waste capacity of urban resident vegetables and partial food. The water storage layer can absorb water of 200-260mm once, can bear any heavy rain or extra heavy rain without overflowing, and has an excellent sponge function.

To sum up, the advantage of this patent is that roof agriculture removes the guarantee supply, has still built the spare tyre of existence for the urban resident, promotes the ability of bearing any heavy rain or super heavy rain, bears urban resident's vegetables and partial food self-supporting, the ability of dirty, useless self-purification.

Drawings

Figure 1 is the utility model relates to a structural sketch map of city microcirculation agricultural system's roof plantation.

Detailed Description

The following describes in detail an embodiment of the present invention with reference to the drawings.

As shown in fig. 1, the roof plantation of the urban micro-circulation agricultural system comprises ridge field blocks and furrows 110, wherein the ridge field blocks are isolated by the furrows 110, furrow prefabricated plates 111 are arranged above the furrows 110, and the sections of the furrow prefabricated plates 110 are rectangular; and the bottom of the furrow precast slab 110 is provided with a U-shaped notch with a downward opening, and the bottom of the furrow precast slab 110 is arranged on the concrete precast hollow brick of the water storage layer 105. At least a walkway precast slab 112 is arranged at a position close to the parapet wall, and the section of the walkway precast slab 112 is rectangular; the bottom of the walkway precast slab 112 is provided with a rectangular notch; the bottom of the walkway precast slabs 112 are set on the concrete precast hollow bricks of the aquifer 105. The bottom of the walkway precast slab 112 is provided with an inlet and outlet ditch 109; be provided with inlet tube and drain pipe in advance escape canal 109, the water inlet of inlet tube is higher than aquifer 105, but drain pipe 113's delivery port sets up the movable joint of free rotation, and the movable joint can be adjusted to and level (full retaining) with the aquifer, also can adjust to and level (evacuation water) with the protective layer to it is connected with the outlet conduit outside parapet to pass the parapet. The ridge field block sequentially comprises a roof structure layer 101, a leveling layer 102, a waterproof layer 103, a protective layer 104, a water storage layer 105, a filter layer 106, a substrate layer 107 and a planting layer 108 from bottom to top; the bottom of each furrow and drainage ditch 109 sequentially comprises a roof structure layer 101, a leveling layer 102, a waterproof layer 103 and a protective layer 104 from bottom to top; intervene in the building design stage, building load reaches the requirement of planting the roofing, and parapet and roofing access & exit plant the layer above position and roofing are whole cast-in-place, is similar to pond structure, and the pure flat design of roofing, roofing set up rigid material such as stainless steel sheet or glass steel and do waterproof layer 103 (double protection layer 104), no longer establish protection layer 104 in addition. Flexible materials such as SBS are adopted as the waterproof layer 103, and a protective layer 104 is required to be additionally arranged. A per-unit protective layer 104 of 30-40mm fine stones is cast on the waterproof layer 103, and the waterproof layer 103 further plays a role in waterproofing to prevent water leakage. The protective layer 104 is provided with 80-120mm concrete prefabricated hollow bricks with capillary penetration function as water storage layers 105 (the water storage rate is required to be more than 70%), the water storage layers 105 are provided with 240 g/square meter and more than one geotextile as filter layers 106, dry land cultivation is conveniently set into a ridge-ridge type planting mode according to agricultural planting, the width of each ridge surface is 80-100mm, the width of each ridge-furrow plate is 250-300 mm, and the planting matrix is covered in each ridge by 20-30 cm.

The water storage layer 105 is made of the concrete prefabricated hollow bricks with the capillary penetration function, so that the water storage planting design can fully utilize domestic water (sewage) or fully utilize natural rainwater, the roof land area is small, but as long as the concrete prefabricated hollow bricks are fully considered in the building design, the population density does not exceed 3 ten thousand per square kilometer, and the water storage planting device can completely bear the self-feeding, self-cleaning and self-cleaning capacities of vegetables and partial food of urban residents. The water storage layer 105 can absorb water of 200-260mm at one time, can bear any heavy rain or extra heavy rain without overflowing, and has an excellent sponge function; roof retaining farming system is different from the planting technique system that the roof is given first place to with the drainage, consequently no longer need spray irrigation, drip irrigation etc. complicated irrigation system, only need a water-supply line insert the water storage layer can, consequently construction convenience, construction low cost saves time, saves labour, laborsaving. Meanwhile, the micro-circulation supporting facilities are constructed on the ground, including a small ecological pig farm and a methane tank which are constructed in a matching way according to the proportion of population 1/10-15, so that the micro-circulation agricultural system is constructed in a city which is separated from the countryside.

In the extremely high temperature period in summer, when the highest temperature is continuously 38-40 ℃ for many days (the temperature of a non-louvered box), the soil covering planting roof is only 29-30.5 ℃, and the bare roof is directly cooled to 35-37 ℃ at the temperature of 64-67 ℃; the indoor temperature of the earth-covered planted roof is 33-35 ℃, the indoor temperature of the common heat-preservation and heat-insulation roof is 38-43 ℃, and the temperature is reduced by 5-8 ℃. Meanwhile, the heat radiation of the roof can be reduced, the rise of the ambient temperature is slowed down, the starting time of the indoor air conditioner is also reduced, the heat of the outdoor unit of the air conditioner is indirectly reduced, the ambient air temperature is increased, and the heat island effect is reduced; in winter, the earth covering planted roof still keeps 2.5 ℃ and 2 ℃ indoors in an extremely low temperature period (the air temperature is minus 6.5 ℃), and the temperature of a bare roof is lowered to minus 10 ℃ and minus 4.5 ℃ indoors, the temperature difference between the two roofs is 12.5 ℃ and the temperature difference between the two roofs is 6.5 ℃. The soil-covered agricultural planting roof has good heat preservation and insulation effects no matter in the summer extreme high temperature period or the winter extreme low temperature period. In addition, the phenomenon that the heat of the roof and the room are reversely transferred with the heat of the roof of the common heat-insulating material occurs (namely, the temperature of the top (outdoor) of the roof plate is lower than the temperature of the bottom (indoor) of the plate in summer in a high-temperature period, and the temperature of the top (outdoor) of the roof plate is higher than the temperature of the bottom (indoor) of the plate in winter in an extreme low-temperature period), so that the heat-insulating effect of the soil-covering agricultural planting is beyond the reach of other heat-insulating materials.

Claims

1. A roof plantation of an urban micro-circulation agricultural system is characterized by comprising furrow field blocks and furrows (110), wherein the furrow field blocks are separated by the furrows (110), furrow prefabricated plates (111) are arranged above the furrows (110), a walkway prefabricated plate (112) is arranged at least at a position close to a parapet wall, and drainage ditches (109) are arranged at the bottoms of the walkway prefabricated plates (112); the farmland block sequentially comprises a roof structure layer (101), a leveling layer (102), a waterproof layer (103), a protective layer (104), a water storage layer (105), a filter layer (106), a substrate layer (107) and a planting layer (108) from bottom to top; the bottoms of the furrows, the water inlet ditch and the water outlet ditch (109) sequentially comprise a roof structure layer (101), a leveling layer (102), a waterproof layer (103) and a protective layer (104) from bottom to top; the waterproof layer (103) is made of SBS flexible material; the protective layer (104) is made of 30-40mm all-stone material, and the water storage layer (105) is made of 80-120mm concrete prefabricated hollow brick material with capillary penetration function; the furrow precast slabs and the walkway precast slabs are erected above the water storage layer (105).

2. A municipal micro-circulation agricultural system roof garden according to claim 1, wherein the waterproof layer (103) is made of stainless steel or glass reinforced plastic without additional protective layer (104).

3. The urban microcirculation agriculture system roof plantation of claim 1, wherein the filtration layers (106) are made of geotextile material having a weight of 240 grams per square meter and above.

4. A roof plantation of a metropolitan micro-circulation agricultural system according to claim 1 wherein the furrow preformed plate (111) has a rectangular cross-section; and the bottom of each furrow precast slab (111) is provided with a U-shaped notch with a downward opening, and the bottom of each furrow precast slab (111) is arranged on a concrete precast hollow brick of the water storage layer (105).

5. A roof plantation of a urban micro-circulation agricultural system according to claim 1 wherein the walkway pre-slab (112) is rectangular in cross-section; the bottom of the walkway precast slab (112) is provided with a rectangular notch; the bottom of the walkway precast slab (112) is arranged on the concrete precast hollow brick of the aquifer (105).

6. The urban micro-circulation agricultural system roof plantation of claim 1, wherein the drainage ditch (109) is provided with a water inlet pipe and a water outlet pipe, the water inlet pipe has a water inlet higher than the aquifer (105), the water outlet pipe has a freely rotatable movable joint, and the water outlet pipe passes through the parapet wall and is connected with a water outlet pipeline outside the parapet wall.