CN111535512A

CN111535512A - Planting building structure

Info

Publication number: CN111535512A
Application number: CN202010404818.5A
Authority: CN
Inventors: 蔡世瑜; 蔡建国; 叶妙扬; 王永辉; 叶海富; 朱宝林; 颜灵超
Original assignee: Zhejiang Aoteng Construction Engineering Co ltd
Current assignee: Zhejiang Aoteng Construction Engineering Co ltd
Priority date: 2020-05-14
Filing date: 2020-05-14
Publication date: 2020-08-14
Anticipated expiration: 2040-05-14
Also published as: CN111535512B

Abstract

The invention relates to a planting building structure which comprises a roof and a water storage cavity prefabricated in the roof, wherein a crushed stone layer and a planting layer are sequentially laid on the top of the roof, the top of the roof is in a frustum shape with a high middle part and a low periphery, an annular inner enclosing wall and an annular outer enclosing wall are arranged on the roof, a first transition channel is formed between the inner enclosing wall and the outer enclosing wall, the crushed stone layer and the planting layer are both positioned in the inner enclosing wall, the top of the planting layer is lower than the top of the inner enclosing wall, a drainage channel is arranged at the joint of the inner enclosing wall and the roof, a plurality of drainage channels are arranged in the outer enclosing wall, one end of each drainage channel is provided with a water inlet on the inner wall of the first transition channel, the other end of each drainage channel is communicated with the water storage. Finally, the quantity of the soil entering the water storage cavity is reduced, and the soil supplement frequency is reduced. And when soil supplement is needed, workers can supplement the sludge accumulated in the first drainage channel to the planting layer, and the quantity of soil supplement is further reduced.

Description

Planting building structure

Technical Field

The invention relates to the technical field of green buildings, in particular to a planting building structure.

Background

With the rapid construction of cities and the rapid growth of urban population and vehicles, the urban heat island phenomenon is aggravated, which leads to the environmental deterioration of cities and the reduction of the quality of living environment. Generally, the traditional plane greening land is less and less, the cost is higher and higher, and therefore the development of special space greening is imperative. The existing building greening can build greening environment on the outer facade and/or inside of the building, and wall greening, roof greening and the like are common.

At present, chinese patent with publication number CN209011433U discloses a roof garden, and it includes the roof structure layer, roof structure layer upper berth is equipped with the metalling, pre-buried in the metalling has the square culvert in advance, the retaining chamber has been seted up in the square culvert in advance, the embedded water guide block that is convenient for water infiltration in the square culvert in advance the retaining intracavity, the metalling upper berth is equipped with the planting soil layer that is used for cultivateing the plant, be provided with the irrigation shower nozzle on the planting soil layer, irrigation shower nozzle pipeline intercommunication has the suction pump, the end of drawing water of suction pump pass through the pipeline with the inside intercommunication of square culvert in advance. The planting soil layer embeds and is equipped with the pre-buried stone that is used for forming the pavement, run through in the pre-buried stone and seted up the water guide hole, the downthehole water guide column that is fixed with of water guide, the one end of water guide column extends to in the preparation culvert. The planting soil layer is arranged to be a slope surface, and the slope surface faces the embedded stones in an inclined mode.

When the surface of the planting soil layer is runoff, part of soil is washed to the embedded stones along the slope by the rainwater, and then enters the water storage cavity through the water guide columns. In the process of rainfall completion to suction pump work again, the soil in the retaining intracavity has already settled, and the suction pump draws water when to the local influence that causes in the retaining intracavity, can lead to the soil of settling in the middle part of retaining chamber to be difficult to influenced by the suction pump to the soil in planting the soil layer reduces gradually, leads to the workman to often replenish the soil of loss, and needs the workman to follow earlier before the replenishment and come with soil transport, and is very inconvenient to workman's working process.

Disclosure of Invention

In view of the deficiencies of the prior art, it is an object of the present invention to provide a planting structure that reduces the frequency of soil replenishment by reducing soil loss.

The above object of the present invention is achieved by the following technical solutions: a planting building structure comprises a roof and a water storage cavity prefabricated in the roof, wherein a gravel layer and a planting layer are sequentially laid at the top of the roof, the top of the roof is in a frustum pyramid shape with a high middle part and a low periphery, an annular inner enclosing wall and an annular outer enclosing wall are arranged on the circumferential side wall of the roof, the inner enclosing wall is positioned in the outer enclosing wall, the height of the inner enclosing wall is lower than that of the outer enclosing wall, a first transition channel is formed between the inner enclosing wall and the outer enclosing wall, the gravel layer and the planting layer are positioned in the inner enclosing wall, the top of the planting layer is lower than that of the inner enclosing wall, a drainage channel communicated with the first transition channel is arranged at the joint of the inner enclosing wall and the roof, non-woven fabric is covered in the drainage channel, a plurality of drainage channels are arranged in the outer enclosing wall, a water inlet is arranged at one end of each drainage channel and is arranged on the inner wall of the first transition channel, and the water inlet, the other end and the water storage cavity of drainage channel intercommunication, be equipped with the watering subassembly on the planting layer, the watering subassembly is taken back water to the planting layer in from the water storage cavity.

By adopting the technical scheme, when excessive rainfall occurs, firstly, rainwater cannot easily directly cross the inner enclosing wall along the surface of the planting layer and then enter the first transition channel, so that the possibility that soil is directly flushed out of the planting layer by rainwater is reduced; secondly, the rainwater is after infiltrating the metalling, and the rainwater passes drainage channel and enters into first filtration canal along the roof top of slope, and at this in-process, the rainwater passes through the filtration of metalling and non-woven fabrics in proper order for most rainwater is wrapped up by the soil of holding down, and the soil that this part rainwater was in this part rainwater after the rainwater got into first filtration canal can deposit in first filtration canal, makes finally to enter into the soil quantity of retaining intracavity by greatly reduced, reduces the frequency that soil supplyed. And when soil supplement is needed, workers can supplement the sludge accumulated in the first drainage channel to the planting layer, and the quantity of soil supplement is further reduced.

The present invention in a preferred example may be further configured to: the gravel layer is laid along the shape of the top of the floor slab, the top of the planting layer is horizontally arranged, the roof is sequentially divided into a shallow layer area, a middle layer area and a deep layer area from the center side to one side of the circumferential side wall of the roof, and vegetation with different requirements on soil thickness is planted in the planting layer according to the difference of the areas.

Through adopting above-mentioned technical scheme, the thickness of soil increases in shallow layer district, well layer district and deep zone district in proper order, and the convenience is separately planted to the difference of soil thickness demand according to planting the vegetation, for example plants the shallower lawn of root system in the shallow layer district, and plants the darker arbor of root system in the deep zone district, makes the vegetation of roof diversified, more reasonable utilization land resource.

The present invention in a preferred example may be further configured to: the floor slab is further provided with an annular first partition wall and an annular second partition wall, the first partition wall is located between a shallow layer area and a middle layer area, the second partition wall is located between the middle layer area and a deep layer area, the tops of the first partition wall and the second partition wall are flush with the inner surrounding wall, a second transition channel and a third transition channel are respectively formed in the tops of the first partition wall and the second partition wall, a plurality of drainage channels are communicated among the first transition channel, the second transition channel and the third transition channel, the side walls of the drainage channels are formed by pouring concrete, the tops of the drainage channels are flush with the tops of the second transition channels, a drainage channel for communicating the shallow layer area with the second transition channel is formed in the first partition wall, and a drainage channel for communicating the middle layer area with the third transition channel is formed in the second partition wall.

Through adopting above-mentioned technical scheme, shallow canal, intermediate zone district and deep zone district are kept apart to first division wall and second division wall, reduce the rainwater at the intraformational flow distance of planting to reduce the contact time of rainwater and soil, then recycle and arrange the canal and collect the rainwater drainage to first filtration canal in with second transition canal, third transition canal, further reduce the contact of rainwater and planting layer.

The present invention in a preferred example may be further configured to: a plurality of connecting plates are erected on the second transition channel, the third transition channel and the water drainage channel, and the top of each connecting plate is flush with the top of the water drainage channel.

Through adopting above-mentioned technical scheme, the workman can be with the help of the handcart when carrying soil or the vegetation that needs to plant, and the handcart can be removed at the connecting plate and stride second transition canal, third transition canal and drainage canal, alleviates workman's work burden, improves maintenance efficiency.

The present invention in a preferred example may be further configured to: the top of second transition canal, third transition canal and drainage canal all sets up flutedly, connecting plate sliding connection is in corresponding recess, swing joint has the vertical peg graft pole that runs through the connecting plate on the connecting plate, set up a plurality of spliced eyes on the tank bottom of recess, work as when the one end of peg graft pole is inserted in the spliced eye, the connecting plate is fixed in corresponding recess.

By adopting the technical scheme, the position of the connecting plate can be flexibly adjusted, and a worker can adjust the position of the connecting plate to adjust the shortest advancing route before pushing the cart to enter the planting layer, so that the cart can advance more conveniently.

The present invention in a preferred example may be further configured to: the watering subassembly has three groups, and three groups of watering subassemblies are used for planting the vegetation watering in shallow region, middle-story region and deep zone respectively.

Through adopting above-mentioned technical scheme, because the soil thickness in shallow layer district, middle-course district and the deep zone is different, the water yield that soil can hold is different to the vegetation of corresponding planting also is also different to the demand that supplies water, adopts corresponding watering subassembly to separately supply water, makes the vegetation homoenergetic in every region have more suitable water supply, improves the survival probability of vegetation.

The present invention in a preferred example may be further configured to: the planting layer is paved with a covering layer, the top of the covering layer is flush with the top of the peripheral wall, and a plurality of gaps for the plants to penetrate through are formed in the covering layer.

Through adopting above-mentioned technical scheme, the overburden can reduce the area that the planting layer exposes in the external world, reduces the volume that moisture direct evaporation falls in the soil to the overburden can also supply people to walk, and personnel walk on the overburden can reduce the possibility of being stained with soil, reduces the loss that soil appears because of artificial factor.

The present invention in a preferred example may be further configured to: the building cover comprises a covering layer and is characterized in that a plurality of water pipes are embedded in the covering layer, the water pipes are arranged around the top of a building and in the center, one end of each water pipe faces one side of the center of the top of the building, the other end of each water pipe faces one side of the circumferential side wall of the top of the building and penetrates out of the side wall of the covering layer, one end, facing the center of the top of the building, of each water pipe is higher than one end, facing the circumferential side wall of the top of the building, of each water pipe, a plurality of branch pipes are installed on the circumferential side wall of each water pipe.

Through adopting above-mentioned technical scheme, the rainwater on overburden surface can enter into the raceway along the branch pipe, and the raceway is with leading-in to the close ditch of rainwater again, reduces the rainwater and saves at the overburden, makes things convenient for personnel to walk.

The present invention in a preferred example may be further configured to: the opening of the drainage pipeline on the side wall of the water storage cavity is a water outlet, the side wall of the water storage cavity is provided with an overflow port communicated with the sewer pipeline, and the overflow port is positioned below the water outlet and close to the water outlet.

Through adopting above-mentioned technical scheme, in the frequent period of rainfall, the planting layer need not to water, and too much rainwater is saved very easily in the retaining intracavity, and when the overflow mouth was overflowed to the intracavity water that impounds, unnecessary water directly entered into the sewer pipe in, the rainwater of guaranteeing in the first drainage canal can be discharged through the drainage pipeline smoothly, prevents that the vegetation in the planting layer from being soaked by the rainwater.

In summary, the invention includes at least one of the following beneficial technical effects:

1. by arranging the first transition channel, rainwater entering the water storage cavity is precipitated, so that soil entering the water storage cavity is reduced, and workers can conveniently supplement lost soil to the roof from the first transition channel;

2. by dividing a shallow layer area, a middle layer area and a deep layer area on the roof, different types of vegetation can be planted according to the thickness of soil in different areas, and the diversity of the vegetation is improved according to the terrain;

3. through setting up second transition canal, third transition canal and drainage canal for the drainage reduces the root of vegetation and is soaked the possibility for a long time by the rainwater.

Drawings

FIG. 1 is a schematic view of the overall structure of the embodiment;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is a schematic structural view of a concrete pouring section in the embodiment;

FIG. 4 is an enlarged view of portion B of FIG. 3;

FIG. 5 is a sectional view of the prefabricated panel in the embodiment.

In the figure, 01, the roof; 011. a water storage cavity; 0111. a water outlet; 0112. an overflow port; 012. a staircase; 013. a drainage channel; 02. a peripheral wall; 03. an inner enclosing wall; 04. a first transition channel; 05. a first partition wall; 051. a second transition channel; 06. a second partition wall; 062. a third transition channel; 07. a drainage channel; 08. planting a layer; 081. a shallow zone; 082. a middle layer region; 083. a deep zone; 09. a crushed stone layer; 10. a connecting plate; 101. a plug rod; 20. a cover layer; 201. prefabricating a slab; 202. a water delivery pipe; 203. a branch pipe; 30. a watering assembly; 40. a water supply pipeline; 50. a third partition wall; 60. a drainage channel; 70. and (7) inserting holes.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, a planting building structure disclosed by the present invention includes a roof 01 and a stairwell 012 protruding from the roof 01, wherein a circumferential side wall of the roof 01 protrudes upward to form a peripheral wall 02, and a first annular partition wall 05, a second annular partition wall 06 and an inner peripheral wall 03 are sequentially fixed on the top of the roof 01 from the center to one side of the inner peripheral wall 03. A plurality of third partition walls 50 are connected between the first partition wall 05 and the peripheral wall 02, and the plurality of third partition walls 50 are uniformly distributed around the center of the roof 01. The first isolation wall 05, the second isolation wall 06 and the peripheral wall 02 divide the top of the roof 01 from the center to the circumferential side wall into a shallow layer area 081, a middle layer area 082 and a deep layer area 083 in sequence, and the plurality of third isolation walls 50 divide the middle layer area 082 and the deep layer area 083 into a plurality of blocks. Composite pavements are filled in the shallow layer area 081, the middle layer area 082 and the deep layer area 083, and lawns are paved on the load pavement of the shallow layer area 081; shrubs are planted in the composite pavement of the middle layer region 082; and planting trees in the composite pavement of the deep-zone 083. The resident can go to the roof 01 through the stairwell 012 during the idle time, view various vegetation and relax the mood.

Referring to fig. 2 and 3, the top of the roof 01 is in a shape of a frustum of pyramid with a high middle and low periphery, and the slope gradient from the periphery of the top of the roof 01 to the center is 2 degrees. A water storage cavity 011 is formed in the roof 01, and a plurality of stand columns for supporting the top of the roof 01 are arranged in the water storage cavity 011. The inner enclosing wall 03, the outer enclosing wall 02, the first isolation wall 05, the second isolation wall 06 and the third isolation wall 50 are all formed by pouring concrete in situ. The top of the peripheral wall 02, the first partition wall 05, the second partition wall 06 and the third partition wall 50 are all on the same horizontal plane, and the top of the inner peripheral wall 03 is lower than the top of the peripheral wall 02.

Referring to fig. 2 and 3, a first transition channel 04 is formed between the inner enclosing wall 03 and the outer enclosing wall 02, a second transition channel 051 and a third transition channel 062 are respectively formed at the tops of the first separating wall 05 and the second separating wall 06, a drainage channel 07 is formed at the top of the third separating wall 50, and the drainage channel 07 is respectively communicated with the first transition channel 04, the second transition channel 051 and the third transition channel 062. The peripheral wall 02 is uniformly provided with drainage channels 60 communicating the deep layer regions 083 with the first transition channels 04 along the circumferential direction of the peripheral wall 02, the first partition wall 05 is provided with a plurality of drainage channels 60 communicating the shallow layer regions 081 with the second transition channels 051, and the second partition wall 06 is provided with a plurality of drainage channels 60 communicating the middle layer regions 082 with the third transition channels 062. A non-woven fabric is installed in each of the drainage channels 60, and the non-woven fabric filters rainwater flowing through the drainage channels 60.

Referring to fig. 2 and 3, a plurality of drainage channels 13 are formed in the peripheral wall 02, and the drainage channels 13 are sequentially distributed along the circumferential direction of the peripheral wall 02. The water inlet has been seted up on the inner wall of first transition canal 04 to the one end of drainage channel 13, and the water inlet is less than the top setting of inner enclosure 03 in vertical direction, and delivery port 0111 has been seted up to the other end of drainage channel 13 on the lateral wall of water storage box. An overflow port 0112 communicated with a sewer pipe is formed in the side wall of the water storage cavity 011, the overflow port 0112 is located below the water outlet 0111 and close to the water outlet 0111, and the overflow port 0112 is connected with the underground water pipe through a pipeline. The inner wall of the roof 01 is also embedded with a water supply pipeline 40, the water supply pipeline 40 is provided with an electromagnetic valve, the water supply pipeline 40 is provided with an opening on the inner wall of the water storage cavity 011, and the opening of the water supply pipeline 40 is close to the water inlet at the height of the inner wall of the water storage cavity 011. When the water level in the water storage cavity 011 is low, the electromagnetic valve is opened, and tap water is input into the water storage cavity 011 through the water feeding pipeline 40, so that enough water can be reserved in the water storage cavity 011 for using the roof 01 vegetation.

Referring to fig. 3 and 4, grooves are formed in the tops of the first partition wall 05, the second partition wall 06 and the third partition wall 50, the openings of the second transition channel 051, the third transition channel 062 and the drainage channel 07 are respectively located in the middle of the bottom of the corresponding groove, a plurality of insertion holes 70 are further formed in the positions of two sides of the bottom of the corresponding groove, and the insertion holes 70 are distributed along the length direction of the corresponding groove. The groove is connected with a connecting plate 10 in a sliding way, and the connecting plate 10 is movably connected with a plug rod 101 vertically penetrating through the connecting plate 10. The plug rod 101 in this embodiment is a countersunk bolt, when one end of the plug rod 101 is inserted into the plug hole 70, the top of the plug rod 101 is flush with the top of the connecting plate 10, and the connecting plate 10 is fixed in the corresponding groove.

Irrigation assemblies 30 are arranged in the shallow layer area 081, the middle layer area 082 and the deep layer area 083, and the irrigation assemblies 30 pump water from the water storage cavity 011 and irrigate vegetation in corresponding areas. The irrigation assemblies 30 in shallow region 081 are used for irrigation, while the irrigation assemblies 30 in intermediate region 082 and deep region 083 are used for drip irrigation.

Referring to fig. 2 and 5, the composite pavement sequentially comprises a waterproof layer, a gravel layer 09, a planting layer 08 and a covering layer 20 from bottom to top. The waterproof layer is formed by laying root-puncture-resistant waterproof rolls and has long-term plant root-puncture resistance. The waterproof layer and the gravel layer 09 are both laid along the shape of the top of the floor slab. The planting layer 08 is formed by laying soil suitable for planting locally, the tops of the planting layer 08 and the covering layer 20 are both horizontally arranged, and the top of the covering layer 20 is flush with the top of the peripheral wall 02. The cover layer 20 is provided with a plurality of gaps in a shallow layer area 081, a middle layer area 082 and a deep layer area 083, vegetation is planted in a planting layer 08 below the cover layer 20 through the gaps, and the watering assembly 30 waters the gaps in the corresponding areas. The covering layer 20 is composed of a plurality of prefabricated panels 201, the prefabricated panels 201 are prefabricated and formed in a prefabrication factory, and a plurality of water conveying pipes 202 are embedded in the prefabricated panels 201. The plurality of water conveying pipes 202 are arranged around the roof 01 in the center, one end of each water conveying pipe 202 faces one side of the center of the roof 01, the other end of each water conveying pipe 202 faces one side of the outer wall 02 and penetrates out of the side wall of the prefabricated plate 201, one end, facing the center of the roof 01, of each water conveying pipe 202 is higher than one end, facing the circumferential side wall of the roof 01, of each water conveying pipe 202, a plurality of branch pipes 203 are installed on the circumferential side wall of each water conveying pipe 202, and one ends, far away from the water conveying pipes 202, of the branch pipes 203 are opened at the top.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. The utility model provides a plant building structure, includes roof (01), prefabricated water storage cavity (011) in roof (01), rubble layer (09) and planting layer (08), its characterized in that have been laid in proper order at roof (01) top: the roof (01) top is of a prismoid shape with high middle and low periphery, the circumferential side wall of the roof (01) is provided with an annular inner enclosing wall (03) and an annular outer enclosing wall (02), the inner enclosing wall (03) is positioned in the outer enclosing wall (02), the height of the inner enclosing wall (03) is lower than that of the outer enclosing wall (02), a first transition channel (04) is formed between the inner enclosing wall (03) and the outer enclosing wall (02), the gravel layer (09) and the planting layer (08) are both positioned in the inner enclosing wall (03), the top of the planting layer (08) is lower than that of the inner enclosing wall (03), the connecting part of the inner enclosing wall (03) and the roof (01) is provided with a drainage channel (60) communicated with the first transition channel (04), the drainage channel (60) is covered with non-woven fabric, the outer enclosing wall (02) is provided with a plurality of drainage channels (13), and one end of each drainage channel (13) is provided with a water inlet on the inner wall of the first transition channel (04), the water inlet is lower than the top of the inner enclosing wall (03) in the vertical direction, the other end of the drainage channel (13) is communicated with the water storage cavity (011), the irrigation component (30) is arranged on the planting layer (08), and the irrigation component (30) pumps water back into the planting layer (08) from the water storage cavity (011).

2. A planting building structure as claimed in claim 1, wherein: the gravel layer (09) is laid along the shape of the top of the floor slab, the top of the planting layer (08) is horizontally arranged, the roof (01) is sequentially divided into a shallow layer area (081), a middle layer area (082) and a deep layer area (083) from the center side to the side of the circumferential side wall of the roof (01), and vegetation with different requirements on soil thickness is planted in the planting layer (08) according to different areas.

3. A planting building structure as claimed in claim 2, wherein: the floor slab is further provided with an annular first partition wall (05) and an annular second partition wall (06), the first partition wall (05) is located between a shallow layer area (081) and a middle layer area (082), the second partition wall (06) is located between the middle layer area (082) and a deep layer area (083), the tops of the first partition wall (05) and the second partition wall (06) are flush with each other on the inner surrounding wall (03), the tops of the first partition wall (05) and the second partition wall (06) are respectively provided with a second transition channel (051) and a third transition channel (062), a plurality of drainage channels (07) are communicated among the first transition channel (04), the second transition channel (051) and the third transition channel (062), the side wall of the drainage channel (07) is formed by casting, the top of the drainage channel (07) is flush with the top of the second transition channel (051), and the first partition wall (05) is provided with a concrete drainage channel (081) communicated with the second transition channel (081) and a concrete channel (60) which is flush with the shallow channel (081) ) And a drainage channel (60) for communicating the middle layer region (082) with the third transition channel (062) is formed on the second partition wall (06).

4. A planting building structure as claimed in claim 3, wherein: a plurality of connecting plates (10) are erected on the second transition channel (051), the third transition channel (062) and the drainage channel (07), and the top of each connecting plate (10) is flush with the top of the drainage channel (07).

5. A vegetative building structure according to claim 4, in which: the top in second transition canal (051), third transition canal (062) and drainage canal (07) all is seted up flutedly, connecting plate (10) sliding connection is in corresponding recess, swing joint has peg graft pole (101) of vertical through-connection board (10) on connecting plate (10), a plurality of spliced eye (70) have been seted up on the tank bottom of recess, works as when peg graft pole (101) one end is inserted in peg graft hole (70), and connecting plate (10) are fixed in corresponding recess.

6. A planting building structure as claimed in claim 2, wherein: the irrigation assemblies (30) are provided with three groups, and the three groups of irrigation assemblies (30) are respectively used for irrigating vegetation planted in a shallow layer area (081), a middle layer area (082) and a deep layer area (083).

7. A planting building structure as claimed in claim 1, wherein: the planting layer (08) is paved with a covering layer (20), the top of the covering layer (20) is flush with the top of the peripheral wall (02), and the covering layer (20) is provided with a plurality of gaps for plants to pass through.

8. A planting building structure as claimed in claim 7, wherein: the building covering plate is characterized in that a plurality of water pipes (202) are embedded in the covering layer (20), the water pipes (202) are arranged around the roof (01) in the center, one end of each water pipe (202) faces one side of the center of the roof (01), the other end of each water pipe (202) faces one side of the circumferential side wall of the roof (01) and penetrates out of the side wall of the covering plate, one end, facing the center of the roof (01), of each water pipe (202) is higher than one end, facing the circumferential side wall of the roof (01), of each water pipe (202), a plurality of branch pipes (203) are installed on the circumferential side wall of each water pipe (202), and one ends, far away from the water pipes (202), of the branch pipes (203) are opened at the top of the covering layer (20.

9. A planting building structure as claimed in claim 1, wherein: the opening of the drainage pipeline on the side wall of the water storage cavity (011) is a water outlet (0111), an overflow port (0112) communicated with a sewer pipe is arranged on the side wall of the water storage cavity (011), and the overflow port (0112) is located below the water outlet (0111) and close to the water outlet (0111).