Building with roof bearing large-area farmland

Abstract

The utility model discloses a building with a roof bearing a large-area farmland. The building comprises a building main body part, a farmland part, a roof strip-shaped facility part and a vertical traffic part. The building main body part is a large-scale horizontal building body and is higher than the ground; the farmland part is positioned on a roof panel of the building main body part; each roof strip-shaped facility part is composed of a skylight, a roof ventilation tower and the like, the long axes of the multiple roof strip-shaped facility parts are parallel to the main farming direction of the agricultural machine and are distributed in parallel at intervals, the farmland part is divided into a plurality of farmland blocks, and the size of the short sides of the farmland blocks is the multiple of the farming breadth of the agricultural machine; and the vertical traffic part is used for providing a channel for the agricultural machinery to communicate the ground with the farmland part. By the adoption of the building with the roof bearing the large-area farmland, the contradiction that the farmland and construction land fight for land space resources can be effectively solved, and therefore the land is remarkably saved.

Description

Technical Field

[0001] The utility model relates to the field of comprehensive land improvement, in particular to a building with a roof that supports a large area of ​​farmland. Background Art

[0002] The existing comprehensive land improvement technology is to increase the area of ​​urban and rural construction land, or increase the area of ​​arable land, or obtain a certain type of land for specific purposes. It re-optimizes and combines land resources such as fields, water, roads, forests, and village and town construction land in a two-dimensional plane space.

[0003] However, the farmland of the existing technology only utilizes the depth of about 50 to 60 cm on the surface, and the space resources below it are not utilized. If the land resources can be used in a vertical composite way, it can greatly alleviate the contradiction between the protection requirements of cultivated land, forest land, etc. and the land for urban and rural construction and development. Utility Model Content

[0004] The purpose of the utility model is to overcome the above-mentioned deficiencies in the prior art and to provide a building with a roof that supports a large area of ​​farmland.

[0005] The utility model is realized through the following technical scheme: a building with a roof supporting a large area of ​​farmland, which comprises a building main body part, a farmland part, a roof strip facility part, and a vertical transportation part.

[0006] The main part of the building is a large-scale horizontal building body, so that a large area of ​​roof can be obtained to carry the farmland part. Conventional buildings are mostly short in depth, with a depth of about 10 to 20 meters, in order to obtain better building sunlight and ventilation conditions, but most of the ground between multiple rows of conventional buildings is a shadow area, and the sun cannot shine directly, which is not conducive to crop growth. If a large-scale and deep building can be designed, the shadow area on the ground can be eliminated and reduced, and a large area of ​​direct sunlight can be formed on the roof. By combining building functions with different lighting illumination requirements, a large-scale, large-depth, and integrated building can be obtained. If the roof is used to build farmland, it is conducive to crop growth and mechanized farming. The long side size of farmland that meets mechanized farming is generally not less than 200 meters, and the short side is generally not less than 150 meters. Therefore, the plane reference size of a building with a roof carrying a large area of ​​farmland can be 200 meters × 150 meters.

[0007] Furthermore, the lighting and ventilation problems caused by the large depth need to be solved by technical means. Therefore, the main body of the building is raised above the ground, specifically, the indoor floor of the main body of the building is higher than the outdoor ground, so that the side window lighting surface can be obtained, forming an indoor side window lighting area, solving the lighting problem of the area adjacent to the indoor and exterior walls. For example, by making full use of the side walls to open side windows, the surrounding area of ​​the building can have natural lighting.

[0008] Furthermore, the farmland part is located above the roof panel of the main building part and is surrounded by retaining walls around the top of the main building part. The retaining wall is constructed using reinforced concrete and forms an integral structure with the roof panel of the main building part, which can resist the lateral thrust of the soil in the farmland part and the dynamic load and lateral thrust during mechanical tillage.

[0009] Furthermore, the strip-shaped facility section of the roof is mainly composed of the skylight and the roof ventilation tower, and other necessary roof facilities such as heat dissipation equipment, power equipment and necessary agricultural equipment are also combined into the strip-shaped facility section of the roof. Each of the strip-shaped facility sections of the roof is composed of one or more strip-shaped skylights, one or more roof ventilation towers and other necessary equipment with equal widths to form a long strip-shaped facility assembly. The long axis of the strip-shaped facility section of the roof is parallel to the main tillage direction of the agricultural machinery and is distributed in parallel at intervals along the north-south direction, that is, the long axis direction of the skylight points to the east-west direction, so as to obtain a more uniform lighting effect indoors. The strip-shaped facility section of the roof is designed to be strip-shaped, which can be well matched with the linear path of agricultural machinery tillage. Multiple strip-shaped facility sections of the roof are arranged in parallel and at intervals to separate multiple farmland blocks. The short side length of each farmland block is a multiple of the width of agricultural machinery tillage, which can improve the efficiency of agricultural machinery tillage and reduce the tillage repetition coefficient.

[0010] Furthermore, the vertical transportation part is used to connect the ground with the farmland part. Agricultural machinery can use the vertical transportation part to rise from the ground and enter the farmland. The specific transportation method can be a ramp, an elevator, etc. Considering the up and down of people, stairs can be set at the same time.

[0011] Furthermore, the interior of the main body of the building is divided into a side window lighting area and a core area, and the area that cannot be illuminated by the side window is the core area. Since the requirements for light brightness of the internal functions of the building are graded differently, the functional zoning can be reorganized according to the level of lighting requirements. For example, if the raw materials of the product need to be moved in in boxes, the vision only needs to be able to recognize the illumination of the box size, and the lighting requirements are low. The processing and operation of raw materials and parts require high illumination, so it is necessary to increase the illumination on the work surface, and even increase artificial lighting. The functions with high lighting requirements can be concentrated and arranged in strips, and the lighting problem of this area can be solved by opening strip skylights on the roof. The skylight can be in the form of a sawtooth skylight, a rectangular skylight, or a flat skylight. The lighting efficiency of each type of skylight is 1.2 to 2 times that of the side window, and the uniformity is better than that of the side window. Therefore, to solve the indoor lighting of the same area, only a smaller area of ​​skylight needs to be opened, thereby reducing the occupied area of ​​the farmland on the upper part of the roof, and this part of the area is the skylight lighting area. In order to maximize the area of ​​the farmland part, a flat skylight can be used, which is a window form in which the daylighting port is basically parallel to the roof. Functions with low lighting requirements such as toilets, archives, conference rooms, warehouses, garages, yards, restaurants, facility rooms, corridors, etc. are concentrated and arranged in strips, that is, the dark area. The dark area may not have a skylight, and is arranged parallel to and at intervals with the skylight lighting area, so that the scattered light resources of the adjacent skylight lighting area can be borrowed, and it can also be consistent with the field separation layout of the farmland part of the upper part of the roof. At the same time, in order to obtain relatively uniform sunshine within a day, the long axis of the strip facility part of the roof points to the east-west direction. At the same time, whether it is the skylight lighting area or the dark area, artificial light sources must be set for supplementary lighting. Since there is no need to open a skylight in the dark area, a larger area can be provided for the upper farmland.

[0012] Furthermore, large-scale buildings that use side windows for lighting often need to have partition walls installed inside, which blocks the horizontal through wind and is not conducive to indoor ventilation. To this end, the internal corridor is extended and connected to the exterior facade and an air duct opening is opened to form a through air duct. The air duct opening is equipped with a louver fence. The part of the internal partition wall adjacent to the air duct adopts a combination of ventilation louver partitions and opening and closing panels. By installing the ventilation louver partition and opening the opening and closing panels, the rooms adjacent to the air duct can be connected to the air duct, and by closing the opening and closing panels to isolate noise, the indoor sound environment is controlled.

[0013] Furthermore, in the core area, the roof ventilation tower is set up in different areas to assist in solving the ventilation problem. The roof ventilation tower uses a fan to generate airflow. For indoor odors, noise, and areas that require moisture isolation, hard partition walls (i.e. solid and airtight walls) or glass walls can be set up to solve the lighting and ventilation problems through roof skylights and roof ventilation towers. Residential, office, and hotel functions that have high requirements for lighting and viewing can be arranged in the side window lighting area.

[0014] Furthermore, a water supply pipe and a drainage pipe are respectively provided on opposite sides of the main building part, the nozzle height of the water supply pipe is higher than the nozzle height of the drainage pipe, and the height difference between the two is not less than the height difference formed by the drainage slope of the farmland. The water supply pipe provides irrigation water for the farmland part, and the drainage pipe provides a farmland drainage channel for the farmland part and a rainwater drainage channel for the main building part. The irrigation form of the field can be traditional flooding, sprinkler irrigation, drip irrigation, etc., which is specifically determined when the field is designed.

[0015] Furthermore, a waterproof layer is provided at the part where the main building part contacts the farmland part. The specific method of providing the waterproof layer is a mature technology in the field of construction. The specific parts where the waterproof layer is provided include: the top surface of the roof panel, the inner side surface of the retaining wall, and the outer side wall of the strip-shaped facility part of the roof. To ensure the smoothness of drainage, the roof panel is provided with a slope of 1 to 2% in the drainage direction, and the drainage direction and slope of the roof are consistent with the drainage direction and slope of the farmland part, and the drainage direction is parallel to the long axis of the strip-shaped facility part of the roof.

[0016] Furthermore, the farmland portion includes an insulation layer and a planting layer. The insulation layer is located at the contact portion between the farmland portion and the main building portion, including the upper portion of the roof panel, the inner side of the retaining wall, and the outer side wall of the strip-shaped facility portion of the roof. The insulation layer is used to isolate the farmland portion from the influence of indoor and outdoor temperature changes on the main building portion. For example, the temperature of the retaining wall increases due to sunlight exposure, which may affect the soil temperature of the planting layer. The soil layers of the planting layer are distributed from top to bottom as follows: tillage layer, plow bottom layer, and subsoil layer (also called raw soil layer). The tillage layer is the topsoil layer that has been cultivated and matured. In this layer of soil, the crop roots are the most densely populated, the nutrient content is relatively rich, and it has a granular, granular or blocky structure. The thickness of the tillage layer is generally 12 cm to 30 cm, including the thickness of the repaired field ridges and ditches. The plow bottom layer is located below the tillage layer. Due to long-term tillage, this layer of soil is squeezed by the plow and clay particles are deposited with water during precipitation, forming a relatively compact layered structure with a thickness of generally 5cm to 7cm. The subsoil layer is located below the plow bottom layer. This layer of soil is relatively compact and has a significant water and fertilizer retention effect. The thickness of this soil layer is generally 20cm to 30cm.

[0017] Furthermore, for the buildings with large farmland on the roof built on the existing farmland, the tillage layer of the original farmland needs to be stripped off and temporarily stored nearby. After the house construction project is completed, it is used as a new tillage layer for the construction of the farmland part. For the buildings with large farmland on the roof built in urban areas, the tillage layer soil can be stripped off-site and used for the construction of the farmland part.

[0018] Furthermore, the overall structure of the main building, including the foundation, columns, walls, roof panels, retaining walls, side walls of the roof strip facilities, etc., can bear all kinds of static loads and dynamic loads of the farmland part. Static loads include the gravity and lateral thrust of soil, irrigation water, precipitation, fertilizers, crops, farming machinery, personnel, vehicles, equipment, etc., and dynamic loads include the dynamic loads of farming machinery, personnel, vehicles, equipment, etc. In order to resist the lateral thrust generated by the farmland part, the vertical walls on the upper part of the roof, including the retaining walls and the side walls of the roof strip facilities, are all made of reinforced concrete structure and form an integral structure with the roof panels.

[0019] Furthermore, the number of floors of the main building is 1 or more, and the vertical transportation part is a ramp or a vertical elevator and stairs. In addition, the interior of the main building with more than 1 floor is provided with stairs and fire partitions according to the function and fire protection requirements. Increasing the number of floors of the main building is conducive to improving land use efficiency, but when the number of floors is too high, the cost of increasing irrigation water is relatively high, and economic balance needs to be made. If a high-level canal is directly built upstream of the water source, increasing the number of floors of the main building will have significant social and economic benefits.

[0020] Furthermore, the main part of the building adopts / selects frame structure, frame-shear structure, full house foundation, pile foundation, strip foundation, etc. according to specific design conditions to ensure structural safety; and configures water, electricity and gas systems according to building functional requirements. This part of the content is common knowledge in the architectural design industry.

[0021] Furthermore, the bottom of the skylight is in a trumpet shape to reduce the obstruction of light by the side walls of the skylight.

[0022] The beneficial effect of the utility model is that a building with a roof carrying a large area of ​​farmland can effectively solve the contradiction between farmland and construction land competing for land space resources. Although the construction cost increases due to the load of the farmland part, compared with re-acquiring a piece of land and completing the corresponding balance of occupation and compensation, the comprehensive cost advantage is obvious. This technology can be used in both construction land and agricultural land, thereby significantly saving land. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram comparing a conventional construction plot and a building with a roof supporting a large area of ​​farmland in an embodiment of the utility model.

[0024] Figure 2 It is a schematic cross-sectional diagram of the indoor lighting partitions of the building main body according to an embodiment of the utility model.

[0025] Figure 3 It is a schematic plan view of the indoor lighting zones of the main building part of the embodiment of the utility model.

[0026] Figure 4 This is a cross-sectional schematic diagram of an embodiment of the utility model in which skylight lighting is adopted throughout the core area.

[0027] Figure 5 This is a plan view of an embodiment of the utility model in which a skylight lighting area and a dark area are arranged at intervals in the core area.

[0028] Figure 6 This is a cross-sectional schematic diagram of an embodiment of the utility model in which a skylight lighting area and a dark area are arranged at intervals in the core area.

[0029] Figure 7 It is a three-dimensional indoor cutaway schematic diagram of an embodiment of the utility model in which a skylight lighting area and a dark area are arranged at intervals in the core area.

[0030] Figure 8 This is a cross-sectional schematic diagram of an embodiment of the utility model in which a skylight lighting area and a dark area are arranged at intervals in the core area.

[0031] Fig. 9 It is a schematic plan view of the corridor and air duct of an embodiment of the utility model.

[0032] Fig.10 It is a cross-sectional schematic diagram of the local air duct opening, air duct and ventilation louver partition combined with the opening and closing plate of an embodiment of the utility model.

[0033] Fig.11 It is a schematic diagram of the overall three-dimensional shape and the partial cutaway of the upper farmland portion of an embodiment of the utility model.

[0034] Fig.12 This is a schematic diagram of the hierarchical structure of the farmland department.

[0035] Fig.13 It is a schematic diagram of the roof strip facility part of an embodiment of the utility model.

[0036] Fig.14 This is a schematic diagram of the farmland blocks, tillage bands, widths, and tillage paths of the farmland portion of an embodiment of the utility model.

[0037] Fig.15 This is a schematic diagram of a building main body with multiple floors according to an embodiment of the utility model.

[0038] Description of reference numerals:

[0039] Conventional building area 100

[0040] Ground 01

[0041] Rizhao Line 05

[0042] Conventional Building 06

[0043] Conventional building sunlight shadow area 0501

[0044] A building with a roof that supports a large area of ​​farmland

[0045] Building main part 10

[0046] Side window lighting area 11

[0047] Ventilation shutter partition 13

[0048] Opening and closing plate 14

[0049] Side window 15

[0050] Building entrance 16

[0051] Corridor / air duct 17

[0052] Air duct 18

[0053] Core Zone 20

[0054] Skylight lighting zone 21

[0055] Dark Zone 22

[0056] Roof Panel 30

[0057] Skylight 31

[0058] Roof ventilation tower 32

[0059] Roof strip facilities 33

[0060] Side wall 34

[0061] Farmland Department 40

[0062] Insulation layer 41

[0063] Planting layer 42

[0064] Cultivated layer 4201

[0065] Plow bottom layer 4202

[0066] Heart soil layer 4203

[0067] Retaining wall 43

[0068] Water pipe 44

[0069] Drain 45

[0070] Farmland Block 46

[0071] Agricultural machinery tillage width 47

[0072] Agricultural machinery tillage strip 48

[0073] Vertical Transportation 50 DETAILED DESCRIPTION

[0074] The following descriptions of the embodiments refer to the accompanying drawings to illustrate specific embodiments in which the present invention can be implemented.

[0075] like Figure 1 As shown above, the rows of conventional buildings 06 in the conventional building community 100 mostly adopt short depths to obtain better sunlight and ventilation conditions, but most of the ground between the rows of conventional buildings 06 is a shadow area 0501, where the sun cannot directly shine, which is not conducive to crop growth.

[0076] like Figure 1 As shown below, a building 200 with a roof supporting a large area of ​​farmland includes a main building part 10, a farmland part 40, and a vertical transportation part 50. The main building part 10 is a large-scale horizontal building body, so that a large-area roof can be obtained to support the farmland part 40. The main building part 10 of this embodiment is a large-scale and deep building, which can eliminate and reduce the shadow area on the ground, and form a large area of ​​direct sunlight on the roof part, which is beneficial to crop growth and mechanized farming.

[0077] like Figure 1 and Figure 2 As shown, the main building part 10 is raised above the ground 01, so that natural light can be obtained through the side windows 15, forming a side window lighting area 11 indoors, solving the lighting problem of the area adjacent to the exterior wall. The farmland part 40 (including the insulation layer 41 and the planting layer 42) is located on the roof panel 30 of the main building part 10, and is surrounded by the retaining wall 43 around the top of the main building part 10. The roof panel 30 and the retaining wall 43 are integrally constructed using reinforced concrete, which can withstand various loads and lateral thrusts of the farmland part 40.

[0078] like Figure 2 and Figure 3 As shown, in the main building part 10, the area where the side windows cannot reach forms the core area 20. Figure 4 As shown, a skylight 31 is arranged on the roof of the core area 20 to form a skylight lighting area 21. If the core area is required to have natural lighting, the skylight lighting area 21 can cover the core area 20 completely.

[0079] like Figures 5 to 8 As shown, functions with low or no lighting requirements can be concentrated in a strip layout, and this part of the area is the dark area 22. The dark area does not need to have a skylight 31, and is arranged in parallel with the skylight lighting area 21, so that it can be consistent with the field distribution pattern of the farmland part 40 on the upper roof. Figure 4 , Figure 6 , Figure 8As shown, the bottom of the skylight is in a trumpet shape to reduce the obstruction of light by the side walls of the skylight and improve lighting efficiency.

[0080] like Figure 3 , Figure 5 , Fig. 9 As shown, the side window lighting area 11 is in a circumferential form, and the interior space of the building often needs to be separated by a partition wall, resulting in poor horizontal through ventilation. To this end, the internal corridor is extended to the exterior facade and an air duct opening 18 is set to form a through air duct 17. Fig.10 The partition wall adjacent to the air duct 17 is partially partitioned by a combination of ventilation shutter partitions 13 and opening and closing panels 14. When the opening and closing panels 14 are opened, the ventilation shutter partitions 13 can connect the airflow of the adjacent room to the air duct 17; when the opening and closing panels 14 are closed, the sound insulation requirements can be met. The opening and closing panels 14 can be of a sliding door type, a sliding door type, or other structures. At the same time, combined with Fig.11 It is explained that the roof ventilation tower 32 is set in the core partition area to assist in solving the ventilation problem. For areas where odor, noise and moisture isolation are required, airtight solid partition walls (not shown in the drawings) can be set, and the lighting and ventilation problems of the area can be solved through the roof skylight 31 and the roof ventilation tower 32. Residential, office, hotel functions with high lighting requirements and viewing requirements can be arranged in the side window lighting area 11 to facilitate viewing of the scenery outside the window.

[0081] like Fig.11 As shown, the side facade of the building with a roof supporting a large area of ​​farmland is a side window lighting surface. In addition to the necessary building entrances and exits 16 and a plurality of air duct openings 18, a plurality of side windows 15 are arranged on the side facade.

[0082] like Fig.11 As shown, agricultural farming machinery and equipment can be operated along the vertical transportation part 50 from the ground to the farming layer 42 of the farmland part 40. Figure 4 , Figure 6 As shown, the part where the farmland part 40 contacts the main building part 10 is provided with an insulation layer 41, including the upper part of the roof panel, the inner side of the retaining wall, and the outer side of the side wall 34 of the roof strip facility part, and the rest of the part is a planting layer. The insulation layer 41 is used to isolate the indoor temperature of the main building part 10 and the temperature of the retaining wall from the farmland part 40. Fig.12As shown, the soil layers of the planting layer 42 are distributed from top to bottom after the tillage structure matures: tillage layer 4201, plow bottom layer 4202, and subsoil layer 4203 (also called raw soil layer). The tillage layer 4201 is the topsoil layer that has been cultivated and matured. In this layer of soil, the crop roots are the most dense, the nutrient content is relatively rich, and it is in a granular, granular or blocky structure. The thickness of the tillage layer is generally 12cm to 30cm, including the thickness of the repaired field furrows and ditches. The plow bottom layer 4202 is located below the tillage layer. This layer of soil is squeezed by the plow due to long-term cultivation and the clay particles are deposited with water during precipitation, forming a relatively compact layered structure with a thickness of generally 5cm to 7cm. The subsoil layer 4203 is located below the plow bottom layer. This layer of soil is relatively compact and has obvious water and fertilizer retention effects. The thickness of this soil layer is generally 20cm to 30cm.

[0083] like Fig.13 As shown, the skylight 31 and the roof ventilation tower 32 are integrated into the roof strip facility part 33. Other necessary roof facilities (not shown in the drawings) including heat dissipation equipment, power equipment, farmland equipment (not shown in the drawings) are also integrated into the roof strip facility part.

[0084] like Fig.14 As shown, the roof strip facility part 33 (including skylight 31, roof ventilation tower 32 and other necessary roof equipment) divides the farmland part into several farmland blocks 46, and the short side dimension of each block is a multiple of the agricultural machinery tillage width 47, so as to reduce the repetition coefficient of the agricultural machinery tillage width 48 and improve the agricultural machinery tillage efficiency.

[0085] like Fig.15 As shown, the main body of the building has multiple floors, and the vertical transportation part is a ramp or a vertical elevator and stairs. Increasing the number of floors of the main body of the building is conducive to improving land use efficiency.

[0086] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope covered by the present invention.

Claims

1. A building with a roof supporting a large area of ​​farmland, characterized in that: It includes the main building part, farmland part, roof strip facilities part, and vertical transportation part; The main building body is a large-scale horizontal building body that rises above the ground; the farmland part is located above the roof panel of the main building body, and is surrounded by retaining walls on all sides of the top of the main building body; the roof strip-shaped facility part includes a skylight and a roof ventilation tower, and the long axes of multiple roof strip-shaped facility parts point in the east-west direction, and are parallel to the main tillage direction of agricultural machinery, and are distributed in intervals along the north-south direction; the farmland part is divided into several farmland blocks by multiple roof strip-shaped facility parts, and the short side size of the farmland block is a multiple of the tillage width of the agricultural machinery; the vertical transportation part is a ramp or a vertical elevator and stairs, which is used to provide a channel for agricultural machinery to connect the ground and the farmland part.

2. A building with a roof supporting a large area of ​​farmland as claimed in claim 1, characterized in that: The interior of the main body of the building is divided into a side window lighting area and a core area, and the core area is divided into a skylight lighting area and a dark area; the skylight lighting area is for concentrating functions with high lighting requirements into strips; the dark area is for concentrating functions with low lighting requirements into strips, and the dark area may not have a skylight; the skylight lighting area and the dark area are both strip-shaped and parallel to the east-west direction, and are arranged at intervals along the north-south direction; the skylight lighting area is illuminated by opening strip skylights on the roof, and artificial light sources are used for supplementary lighting; the dark area is illuminated by using the scattered light resources of the skylight lighting area, and artificial light sources are used for supplementary lighting.

3. A building with a roof supporting a large area of ​​farmland as claimed in claim 1, characterized in that: The internal corridor of the main body of the building is extended and connected to the outer facade and an air duct opening is opened to form a through air duct; the air duct opening is equipped with a louver fence; the internal partition wall adjacent to the air duct is partially in the form of a combination of ventilation louver partitions and opening and closing panels; by setting the ventilation louver partitions and opening the opening and closing panels, the adjacent rooms can be connected to the air duct, and by closing the opening and closing panels to isolate noise, the indoor sound environment is controlled.

4. A building with a roof supporting a large area of ​​farmland as claimed in claim 2, characterized in that: The core area is provided with a rooftop ventilation tower to assist in solving the indoor ventilation problem.

5. A building with a roof supporting a large area of ​​farmland as claimed in claim 1, characterized in that: A water supply pipe and a drainage pipe are respectively arranged on opposite sides of the main building part. The water supply pipe provides irrigation water for the farmland part, and the drainage pipe provides a farmland drainage channel for the farmland part and a rainwater drainage channel for the main building part.

6. A building with a roof supporting a large area of ​​farmland as claimed in claim 1, characterized in that: A waterproof layer is provided at the portion where the main building portion contacts the farmland portion, and the roof panel is provided with a slope of 1 to 2% in the drainage direction. The drainage direction and slope of the roof panel are consistent with those of the farmland portion, and the drainage direction is parallel to the long axis of the roof strip facility portion.

7. A building with a roof supporting a large area of ​​farmland as claimed in claim 1, characterized in that: The farmland portion includes an insulation layer and a planting layer; the insulation layer is located at the contact portion between the farmland portion and the main building portion, and the insulation layer is used to isolate the farmland portion from the influence of temperature changes of the main building portion; the planting layer is divided into a subsoil layer, a plow bottom layer, and a tillage layer from bottom to top.

8. A building with a roof supporting a large area of ​​farmland as claimed in claim 1, characterized in that: The number of floors of the main building part is 1 or more.

9. A building with a roof supporting a large area of ​​farmland as claimed in claim 2, characterized in that: The bottom of the skylight is in a trumpet shape to reduce the blocking of light by the side walls of the skylight.

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