CN113863553B - Dense-rib floor structure convenient for rainwater utilization and construction method thereof - Google Patents

Abstract

A densely ribbed floor structure and a construction method for facilitating rainwater utilization, comprising a densely ribbed floor main body, a water storage structure, a nursery cultivation structure and a rainwater recovery device; the top of the densely ribbed floor main body is provided with an enclosure; The bottom of the main body is provided with transverse rib beams and longitudinal rib beams; the water storage structure is located at the lower part of the inner side of the enclosure, including the bottom waterproof layer, the side waterproof layer and the reservoir; The inside of the pool is equipped with a filter screen; the fence and the side waterproof layer are provided with a second overflow hole corresponding to the first overflow hole; the nursery cultivation structure includes a culture board, a planting nursery and a waterproof ring board; the waterproof ring board There is a transverse partition and a longitudinal partition; the transverse partition and the longitudinal partition divide the internal space of the waterproof ring plate into a group of rectangular cells; the rainwater recovery device includes a diversion pipe, a water collection pipe and a water outlet pipe. The invention solves the technical problem that the traditional ribbed floor has no function of collecting and utilizing rainwater and cannot slow down the urban heat island effect.

Description

A densely ribbed floor structure and its construction method for rainwater utilization

technical field

The invention belongs to the technical field of dense building engineering, in particular to a dense ribbed floor structure and a construction method thereof which are convenient for rainwater utilization.

Background technique

In general, one-way or two-way ribbed floors with a rib spacing ≤ 1.5 m are called densely ribbed floors. The two-way densely ribbed floors have better mechanical performance due to the two-way joint load. The ribbed floor is a flat roof structure composed of reinforced concrete thin slabs and rib beams with small spacing. The densely ribbed floor is generally used in the case of large span and limited beam height. When the column grid size of the building is square or close to square, the two-way densely ribbed floor is often used. The current ribbed floor is only used for the load-bearing and protective functions of the house, and in areas with intensive rainwater, there is no densely ribbed floor for collecting and utilizing rainwater, so we provide a densely ribbed floor with rainwater utilization , that is, adding water storage and covering soil planting structures on the basis of the ribbed floor. The water-storage and soil-covered planting roof has excellent heat insulation and rainproof performance. It can not only purify the air environment, but also fully store and utilize rainwater to prevent the loss of rainwater and achieve year-round irrigation-free maintenance. While reducing rainwater runoff, it can slow down the urban heat island effect and provide protection for the urban environment.

Contents of the invention

The object of the present invention is to provide a dense ribbed floor structure and its construction method which are convenient for rainwater utilization, and to solve the technical problem that the traditional dense ribbed floor has no function of collecting and utilizing rainwater and cannot slow down the urban heat island effect.

In order to achieve the above object, the present invention adopts the following technical solutions.

A densely ribbed structure for rainwater utilization, including a densely ribbed main body; also includes a water storage structure, a nursery cultivation structure and a rainwater recovery device; the top of the densely ribbed main body, along the dense ribbed floor The surrounding edge of the main body of the cover is provided with enclosures; the bottom of the main body of the ribbed floor is provided with transverse rib beams and longitudinal rib beams at intervals; the water storage structure is arranged at the inner lower part of the enclosure, including bottom waterproof The upper waterproof layer and the reservoir; the bottom waterproof layer is arranged on the top of the ribbed floor main body inside the enclosure; the side waterproof layer is coated on the inner surface of the enclosure along the top of the bottom waterproof layer ; The reservoir is arranged on the top of the bottom waterproof layer, and the top of the reservoir is flush with the top of the side waterproof layer; a plurality of first overflow holes are provided on the upper part of the side wall of the reservoir. Inside the pool, a filter screen is laid above the first overflow hole; on the enclosure and the side waterproof layer, a second overflow hole is provided at the position corresponding to the first overflow hole;

The nursery cultivation structure includes a cultivation board, a planting nursery and a waterproof ring board; the cultivation board is arranged in a reservoir and is located above the filter screen; drainage holes are arranged at intervals on the board surface of the cultivation board; The planting nursery is laid on the top surface of the culture plate; the waterproof circle plate is arranged on the top of the reservoir along the inner surface of the enclosure, and the top of the waterproof circle plate is flush with the top of the enclosure; the waterproof circle plate and A waterproof sealant is provided at the joints between the outer walls of the reservoir; a transverse partition and a longitudinal partition are arranged in the waterproof ring plate; the transverse partition and the longitudinal partition separate the inner space of the waterproof ring plate into a group rectangular cell;

The rainwater recovery device includes a diversion pipe, a water collecting pipe and an outlet pipe; the diversion pipe has a group, and the upper end of each diversion pipe is connected to the drainage hole; an activated carbon filter is installed on the diversion pipe; The water collection pipe is connected to the lower end of a group of diversion pipes, and communicates with a group of diversion pipes; the outlet pipe is connected to the middle of the bottom of the water collection pipe, and a water purification filter device and Control valve.

Preferably, the ribbed floor body includes a ribbed floor slab, a base layer, a thermal insulation layer, a floor waterproof layer, and a leveling layer arranged sequentially from bottom to top; the bottom of the ribbed floor body adjacent to the transverse rib beam The spacing is not greater than 1.5m, and the spacing between adjacent longitudinal rib beams at the bottom of the main body of the ribbed floor is not greater than 1.5m.

Preferably, the reservoir is formed by splicing a group of reservoir units; the filter screen and the culture plate are arranged in each reservoir unit; the planting nursery is correspondingly arranged on each culture board.

Preferably, the section of the longitudinal partition is trapezoidal, and the longitudinal partition is located above the longitudinal seam of the horizontally adjacent storage tank unit; the section of the transverse partition is trapezoidal, and the transverse partition is located at Above the transverse seam of the pool unit.

Preferably, the height of the enclosure is no less than 1.2m; the height of the side waterproof layer is no less than 0.6m.

Preferably, both the side waterproof layer and the bottom waterproof layer are made of synthetic polymer material or polymer modified asphalt material or waterproof mortar material.

Preferably, on the inner side wall of the water storage tank, support plates are arranged at intervals along the ring direction at the connection positions corresponding to the filter screens; connected; the filter screen is built on the horizontal edge of the support plate.

The construction method of the densely ribbed floor structure that is convenient for rainwater utilization includes the following steps.

Step 1, constructing the main body of the densely ribbed floor, the transverse ribbed beams and the longitudinal ribbed beams, the transverse ribbed beams, the longitudinal ribbed beams and the main body of the densely ribbed floor are integrally formed.

Step 2: Carry out the pouring of the vertical formwork of the fence and complete the maintenance, and then set a sealing and waterproof adhesive layer at the joint between the fence and the main body of the ribbed floor, so that the pouring structure is combined into a complete whole.

Step 3, respectively setting a bottom waterproof layer and a side waterproof layer on the top of the ribbed floor main body and the inner side of the enclosure.

Step 4, constructing the water storage tank: setting the water storage tank on the top of the bottom waterproof layer, and making the surrounding side walls of the water storage tank contact with the side waterproof layer.

Step 5, install the filter screen in the water storage tank.

Step six, install the cultivation board, the planting nursery and the waterproof ring board in sequence.

Step seven, install the rainwater recovery device, so far the construction is over.

Preferably, after the enclosure is poured, the second overflow hole is first drilled on the surface of the enclosure, and then the first overflow hole required is drilled on the surface of the reservoir, and the dust generated by the drilling is cleaned up.

Preferably, the specific steps of installing the rainwater recovery device in step seven are:

Step 1, connect one end of the diversion pipe through the second overflow hole on the surface of the enclosure and communicate with the first overflow hole on the surface of the reservoir, and use polyurethane foam sealant between the diversion pipe and the first overflow hole seal.

In step 2, the activated carbon filter is installed on the diversion pipe, and the water collection pipe is connected to the lower ends of the plurality of diversion pipes.

Step 3, install the water outlet pipe, and install the water purification filter device and the control valve on the water outlet pipe.

Compared with the prior art, the present invention has the following characteristics and beneficial effects.

1, the ribbed floor structure that is convenient to rainwater utilization among the present invention, by arranging reservoir on dense ribbed floor, and first overflow hole and culture plate are set in the inside of reservoir, set up on the surface of culture plate At the same time, a planting nursery is placed on the top of the cultivation plate, which can realize that the rainwater will be absorbed by the roots of the planting nursery when it rains lightly; when the amount of rainwater reaches moderate and heavy rain, the saturated water in the planting nursery soil will pass through the cultivation plate The drainage holes of the reservoir are leaked, and then filtered by the filter and stored at the bottom of the reservoir. When the stored water level is consistent with the height of the first overflow hole opened on the surface of the reservoir, all the rainwater will be stored in the reservoir. In the process, water is provided for the subsequent planting of the nursery, and when the height of the rainwater in the reservoir is higher than the first overflow hole, the excess rainwater will be discharged through the first overflow hole and discharged from the reservoir The water will be diverted to the pipe connected to the second overflow hole.

2. In the structure of the ribbed floor that is convenient for rainwater utilization in the present invention, an enclosure is provided around the dense ribbed floor, and a diversion pipe and a water collection pipe are arranged on one side of the enclosure, so that the water around the reservoir The waterproof ring plate, the transverse partition and the longitudinal partition are arranged on the top, an activated carbon filter is arranged on the surface of the diversion pipe, and a water purification filter device and a control valve are arranged on the outlet pipe, so that when it rains moderately or heavily, it can be used in the reservoir. When the water storage capacity is higher than the overflow line, the excess rainwater will be drained into the diversion pipe through the drainage pipe, and then the rainwater will be filtered twice through the activated carbon filter on the diversion pipe, which can effectively filter most of the rainwater. Impurities, and then collect the filtered rainwater into the water collection pipe, and then filter the rainwater three times through the water purification filter device on the outlet pipe, which can reduce the fine impurities, odor and germs in the rainwater, and then pass the control valve. Rainwater is used for drainage.

Description of drawings

The present invention will be described in further detail below in conjunction with the accompanying drawings.

Fig. 1 is a schematic diagram of the overall structure of the ribbed floor structure of the present invention.

Fig. 2 is a schematic view of the vertical section structure of the main body of the ribbed floor in the present invention.

FIG. 3 is a schematic diagram of an enlarged structure of point A in FIG. 2 .

Fig. 4 is a structural schematic diagram of setting a filter screen and a culture plate on the upper part of the reservoir in the present invention.

Fig. 5 is a structural schematic diagram of the horizontal diaphragm and the longitudinal diaphragm arranged in the waterproof ring plate in the present invention.

Fig. 6 is a schematic structural view of a water storage tank in the present invention.

Fig. 7 is a schematic diagram of the structure of the culture plate in the present invention.

Fig. 8 is a structural schematic diagram of the filter net in the present invention.

Reference signs: 1-enclosure, 2-transverse rib beam, 3-waterproof ring plate, 4-transverse partition, 5-planting nursery, 6-drainage pipe, 7-activated carbon filter, 8-water collection pipe, 9 -Water purification filter device, 10-control valve, 11-outlet pipe, 12-culture plate, 13-drainage hole, 14-filter, 15-reservoir, 15.1-reservoir unit, 16-first overflow hole , 17-side waterproof layer, 18-rib floor main body, 18.1-rib floor, 18.2-base layer, 18.3-insulation layer, 18.4-floor waterproof layer, 18.5-leveling layer, 19-bottom waterproof layer, 20 - longitudinal diaphragm, 21 - rectangular unit cell, 22 - longitudinal rib beam, 23 - support plate, 24 - second overflow hole.

Detailed ways

As shown in Figures 1-8, this kind of ribbed floor structure that is convenient for rainwater utilization includes a densely ribbed floor main body 18; it also includes a water storage structure, a nursery cultivation structure and a rainwater recovery device; the densely ribbed floor The top of the main body 18 is provided with enclosures 1 along the perimeter of the ribbed floor main body 18; horizontal rib beams 2 and longitudinal rib beams 22 are arranged at intervals at the bottom of the ribbed floor main body 18; the water storage structure It is arranged on the inner lower part of the enclosure 1, including a bottom waterproof layer 19, a side waterproof layer 17 and a reservoir 15; the bottom waterproof layer 19 is arranged on the top of the ribbed floor main body 18 inside the enclosure 1; The side waterproof layer 17 is coated on the inner side of the enclosure 1 along the top periphery of the bottom waterproof layer 19; The top of the waterproof layer 17 is flush; a plurality of first overflow holes 16 are provided on the side wall top of the reservoir 15, and a filter screen 14 is laid on the inside of the reservoir 15 above the first overflow holes 16; A second overflow hole 24 is provided at the position corresponding to the first overflow hole 16 on the enclosure 1 and the side waterproof layer 17;

Described nursery cultivation structure comprises cultivation plate 12, planting nursery 5 and waterproof ring plate 3; Described cultivation plate 12 is arranged in the reservoir 15, and is positioned at the top of filter screen 14; Drain holes 13 are provided; the planting nursery 5 is laid on the top surface of the culture plate 12; the waterproof ring plate 3 is arranged on the top of the reservoir 15 along the inner side of the enclosure 1, and the top of the waterproof ring plate 3 It is flush with the top of the enclosure 1; waterproof sealant is provided at the seam between the waterproof ring plate 3 and the outer wall of the reservoir 15; a transverse diaphragm 4 and a longitudinal diaphragm are arranged in the waterproof ring plate 3 20; the transverse partition 4 and the longitudinal partition 20 divide the internal space of the waterproof ring plate 3 into a group of rectangular cells 21;

The rainwater recovery device includes a diversion pipe 6, a water collection pipe 8 and a water outlet pipe 11; the diversion pipe 6 has one group, and the upper end of each diversion pipe 6 is correspondingly connected with the drainage hole 13; on the diversion pipe 6 An active carbon filter 7 is installed; the water collection pipe 8 is connected to the lower end of a group of flow guide pipes 6, and is communicated with a group of flow guide pipes 6; On the top, from top to bottom, a water purification filter device 9 and a control valve 10 are installed in sequence.

In this embodiment, the ribbed floor body 18 includes a ribbed floor slab 18.1, a base layer 18.2, an insulation layer 18.3, a floor waterproof layer 18.4, and a leveling layer 18.5 arranged sequentially from bottom to top; the ribbed floor The distance between adjacent transverse rib beams 2 at the bottom of the main body 18 is not greater than 1.5m, and the distance between adjacent longitudinal rib beams 22 at the bottom of the ribbed floor main body 18 is not greater than 1.5m; Good stress performance.

In this embodiment, the reservoir 15 is spliced by a group of reservoir units 15.1; the filter screen 14 and the culture plate 12 are arranged in each reservoir unit 15.1; the planting nursery 5 is correspondingly arranged On each culture plate 12, form the water-storage and soil-covered planting roof; the water-storage and soil-covered planting roof is based on the roof platform of the building to store water, cover the soil and plant the roof structure of plants. Its advantage is that it can make full use of rainwater and reduce irrigation. times, and according to the capacity of the reservoir 15, the effect of exempting from irrigation and maintenance can be realized.

In this embodiment, the planting nursery 5 is a structure in which a planting soil layer is laid on the culture board 12 and green plants are planted on the planting soil layer. The content of each component of the soil in the planting soil layer is: 45% mineral matter, 5% organic matter, 20% air and 30% water. The best soil aggregate is 1~5mm, and the best thickness of the planting soil layer is 2~5cm.

In this embodiment, the cross-section of the longitudinal diaphragm 20 is trapezoidal, and the longitudinal diaphragm 20 is located above the longitudinal seam of the horizontally adjacent reservoir unit 15.1; the cross-section of the transverse diaphragm 4 is trapezoidal, and the transverse diaphragm 4 Located above the transverse seam of the longitudinally adjacent cistern unit 15.1.

In this embodiment, the height of the enclosure 1 is no less than 1.2m; the height of the side waterproof layer 17 is no less than 0.6m.

In this embodiment, both the side waterproof layer 17 and the bottom waterproof layer 19 are made of synthetic polymer material or polymer modified asphalt material or waterproof mortar material.

In this embodiment, on the inner side wall of the reservoir 15, at the connection position corresponding to the filter screen 14, support plates 23 are arranged at intervals in the circumferential direction; the support plates 23 are L-shaped, and the vertical sides of the support plates 23 It is connected with the side wall of the reservoir 15; the filter screen 14 is built on the horizontal edge of the support plate 23.

In this embodiment, a soft drainage pipe is pre-buried in the hole of the first overflow hole 16 or filled with soil-retaining water-permeable material, so that the overflowing water can be transported to the diversion pipe 6 for discharge; When the water level inside the pool 15 rises to the height exceeding the first overflow hole 16 , excess water will overflow into the draft pipe 6 along the first overflow hole 16 and be drained away.

The construction method of the densely ribbed floor structure that is convenient for rainwater utilization includes the following steps.

Step 1, constructing the main body 18 of the ribbed floor, the transverse rib beam 2 and the longitudinal rib beam 22 , the transverse rib beam 2 and the longitudinal rib beam 22 are integrally formed with the main body 18 of the dense ribbed floor.

Step 2: Carry out the vertical casting of enclosure 1 and complete the maintenance, and then set a sealing and waterproof adhesive layer at the joint between enclosure 1 and ribbed floor main body 18, so that the pouring structure is combined into a complete whole.

Step 3, setting the bottom waterproof layer 19 and the side waterproof layer 17 on the top of the ribbed floor main body 18 and the inner side of the enclosure 1 respectively.

Step 4, constructing the reservoir 15: the reservoir 15 is placed on the top of the bottom waterproof layer 19, and the side walls around the reservoir 15 are in contact with the side waterproof layer 17.

Step five, install the filter screen 14 in the reservoir 15 .

Step six, install the cultivation board 12, the planting nursery 5 and the waterproof ring board 3 in sequence.

Step seven, install the rainwater recovery device, so far the construction is over.

In this embodiment, after the enclosure 1 is poured, the second overflow hole 24 is first drilled on the surface of the enclosure 1, and then the first overflow hole 16 required is drilled on the surface of the reservoir 15, and the drilled hole The generated dust is cleaned up.

In this embodiment, the specific steps for installing the rainwater recovery device in step seven are as follows.

Step 1, one end of the guide pipe 6 is passed through the second overflow hole 24 on the surface of the enclosure 1 and communicated with the first overflow hole 16 on the surface of the reservoir 15, and the first overflow hole 16 between the guide pipe 6 and the first overflow hole 16 is connected. Seal with polyurethane foam caulk.

Step 2, install the activated carbon filter 7 on the guide pipe 6, and connect the water collecting pipe 8 with the lower ends of the multiple guide pipes 6.

Step 3, install the water outlet pipe 11 , and install the water purification filter device 9 and the control valve 10 on the water outlet pipe 11 .

Above-mentioned embodiment is not exhaustive of specific implementation, also can have other embodiment, and above-mentioned embodiment purpose is to illustrate the present invention, rather than limit the scope of protection of the present invention, all applications that come from the simple change of the present invention all fall within the scope of this invention. within the scope of protection of the invention.

Claims (10)

1. A ribbed floor structure that is convenient for rainwater utilization, including a ribbed floor body (18); it is characterized in that: it also includes a water storage structure, a nursery cultivation structure and a rainwater recovery device; the dense ribbed floor On the top of the main body (18), enclosures (1) are provided along the perimeter of the ribbed floor main body (18); horizontal rib beams (2) and Longitudinal rib beams (22); the water storage structure is arranged on the inner lower part of the enclosure (1), including a bottom waterproof layer (19), a side waterproof layer (17) and a water storage tank (15); the bottom The waterproof layer (19) is set on the top of the ribbed floor main body (18) inside the enclosure (1); the side waterproof layer (17) is applied around the top of the bottom waterproof layer (19) on the enclosure (1) on the inner side; the reservoir (15) is set on the top of the bottom waterproof layer (19), and the top of the reservoir (15) is flush with the top of the side waterproof layer (17); The upper part of the side wall of the reservoir (15) is provided with a plurality of first overflow holes (16), and a filter screen (14) is laid inside the reservoir (15) above the first overflow holes (16); The enclosure (1) and the side waterproof layer (17) are provided with a second overflow hole (24) at a position corresponding to the first overflow hole (16); The nursery cultivation structure includes a cultivation board (12), a planting nursery (5) and a waterproof ring board (3); above; on the plate surface of the culture plate (12) there are drainage holes (13); the planting nursery (5) is laid on the top surface of the culture plate (12); the waterproof ring plate (3) along The inner surface of the enclosure (1) is set on the top of the water storage tank (15), and the top of the waterproof ring plate (3) is flush with the top of the enclosure (1); the waterproof ring plate (3) and the water storage A waterproof sealant is provided at the joints between the outer walls of the pool (15); a transverse partition (4) and a longitudinal partition (20) are arranged in the waterproof ring plate (3); the transverse partition (4) The internal space of the waterproof ring plate (3) is divided into a group of rectangular cells (21) by the mediastinal plate (20); The rainwater recovery device includes a diversion pipe (6), a water collection pipe (8) and a water outlet pipe (11); the diversion pipe (6) has a group, and the upper end of each diversion pipe (6) is connected to the drainage hole (13) Corresponding connection; an activated carbon filter (7) is installed on the diversion pipe (6); the water collection pipe (8) is connected to the lower end of a group of diversion pipes (6) (6) Connected; the outlet pipe (11) is connected to the middle of the bottom of the water collection pipe (8), and a water purification filter device (9) and a control valve (10) are installed on the outlet pipe (11) from top to bottom in sequence . 2. The densely ribbed floor structure that is convenient for rainwater utilization according to claim 1, characterized in that: the densely ribbed floor body (18) includes densely ribbed floors (18.1) and foundation layers arranged sequentially from bottom to top (18.2), thermal insulation layer (18.3), floor waterproof layer (18.4) and leveling layer (18.5); the distance between adjacent transverse rib beams (2) at the bottom of the ribbed floor main body (18) is not greater than 1.5m, The distance between adjacent longitudinal rib beams (22) at the bottom of the ribbed floor main body (18) is not greater than 1.5m. 3. The ribbed floor structure for rainwater utilization according to claim 1, characterized in that: the reservoir (15) is spliced by a group of reservoir units (15.1); the filter ( 14) and culture boards (12) are arranged in each reservoir unit (15.1); the planting nursery (5) is correspondingly arranged on each culture board (12). 4. The ribbed floor structure for rainwater utilization according to claim 3, characterized in that: the section of the longitudinal partition (20) is trapezoidal, and the longitudinal partition (20) is located in the horizontally adjacent storage tank unit Above the longitudinal seam of (15.1); the section of the transverse diaphragm (4) is trapezoidal, and the transverse diaphragm (4) is located above the transverse seam of the longitudinally adjacent reservoir unit (15.1). 5. The ribbed floor structure that is convenient for rainwater utilization according to claim 1, characterized in that: the height of the enclosure (1) is not less than 1.2m; the height of the side waterproof layer (17) Not less than 0.6m. 6. The ribbed floor structure for rainwater utilization according to claim 1, characterized in that: the side waterproof layer (17) and the bottom waterproof layer (19) are both made of synthetic polymer materials or polymerized It is made of material modified bituminous material or made of waterproof mortar material. 7. The ribbed floor structure for rainwater utilization according to claim 1, characterized in that: on the inner side wall of the reservoir (15), the connection positions corresponding to the filter screen (14) are spaced along the ring direction A support plate (23) is provided; the support plate (23) is L-shaped, and the vertical side of the support plate (23) is connected to the side wall of the reservoir (15); the filter screen (14) is erected on the support on the horizontal edge of the plate (23). 8. The construction method of the densely ribbed floor structure that is convenient to rainwater utilization described in any one of claims 1-7, is characterized in that, comprises steps as follows: Step 1: Construct the main body (18) of the ribbed floor, the transverse ribbed beam (2) and the longitudinal ribbed beam (22), the transverse ribbed beam (2) and the longitudinal ribbed beam (22) are integrated with the main body of the ribbed floor (18) forming; Step 2: Carry out the vertical casting of the fence (1) and complete the maintenance, and then set a sealing and waterproof adhesive layer at the joint between the fence (1) and the main body of the ribbed floor (18), so that the pouring structure is combined into a complete whole; Step 3, setting the bottom waterproof layer (19) and the side waterproof layer (17) respectively on the top of the ribbed floor main body (18) and the inner side of the enclosure (1); Step 4, constructing the reservoir (15): place the reservoir (15) on the top of the bottom waterproof layer (19), and make the surrounding side walls of the reservoir (15) and the surface of the side waterproof layer (17) touch; Step five, filter screen (14) is installed in reservoir (15); Step six, install the cultivation board (12), the planting nursery (5) and the waterproof ring board (3) in sequence; Step seven, install the rainwater recovery device, so far the construction is over. 9. According to claim 8, the construction method of the ribbed floor structure that facilitates the utilization of rainwater is characterized in that, after the enclosure (1) is poured, the second overflow is firstly drilled on the surface of the enclosure (1) hole (24), the surface of the reservoir (15) is drilled out of the first overflow hole (16) needed, and the dust produced by the drilling is cleaned up. 10. The construction method of the densely ribbed floor structure that is convenient for rainwater utilization according to claim 8 is characterized in that: the specific steps of installing the rainwater recovery device in step seven are: Step 1, put one end of the diversion pipe (6) through the second overflow hole (24) on the surface of the enclosure (1) and communicate with the first overflow hole (16) on the surface of the reservoir (15), and The flow pipe (6) and the first overflow hole (16) are sealed with polyurethane foam caulking agent; Step 2, install the activated carbon filter (7) on the diversion pipe (6), and connect the water collection pipe (8) to the lower ends of the plurality of diversion pipes (6); Step 3, install the water outlet pipe (11), and install the water purification filter device (9) and the control valve (10) on the water outlet pipe (11).

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