CN111236546A - Construction method and structure for waterproofing and drainage of planting roof platform - Google Patents

Abstract

The invention discloses a construction method and a structure for preventing and draining water of a planting roof platform, which are constructed according to the following steps: laying a waterproof layer on a roof platform → laying a water seepage net pipe on the waterproof layer → wrapping geotextile outside the water seepage net pipe → laying a sand filtration layer on the geotextile → laying a soft water permeable plate on the sand filtration → laying a planting soil layer on the soft water permeable plate. The method has the advantages of convenient construction and high construction efficiency, and can effectively shorten the construction period. The invention has simple structure and low construction cost. The invention has the same waterproof and drainage effect as the prior art. On the premise of ensuring the engineering quality, the construction is more efficient and convenient, and the working hours are saved.

Description

Construction method and structure for waterproofing and drainage of planting roof platform

technical field

The invention relates to a construction method and structure for waterproofing and drainage of a planting roof platform, and belongs to the technical field of building roof construction.

Background technique

In order to beautify the environment, the roof platform of some buildings is designed as a green platform, and some flowers and plants are planted on the roof platform for people to relax and enjoy. Therefore, the waterproof and drainage construction of planting roof is very important. In the prior art, during the waterproof and drainage construction of the planted roof, the construction is relatively complicated and the construction period is long. Therefore, there are still deficiencies in the prior art, and further improvement is required.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a construction method and structure for waterproofing and drainage of a planting roof platform, so as to simplify the waterproofing and drainage construction process of the planting roof, reduce the construction cost, improve the construction efficiency, and shorten the construction period under the premise of satisfying the waterproofing and drainage quality of the planting roof. construction period, so as to overcome the shortcomings of the existing technology.

To achieve the above object, the present invention adopts the following technical solutions:

A construction method for waterproofing and drainage of a planted roof platform of the present invention is constructed according to the following steps: laying a waterproof layer on the roof platform → laying a water seepage network pipe on the waterproof layer → wrapping a geotextile outside the seepage network pipe → laying a filter on the geotextile Sand layer → lay soft permeable board on filter sand → lay planting soil layer on soft permeable board.

In the construction method for waterproofing and drainage of the planted roof platform, when laying the waterproof layer, the surrounding area of the waterproof layer extends upward from the roof platform along the retaining wall to above the top surface of the planting soil layer to prevent rainwater from infiltrating the roof platform along the retaining wall.

In the construction method for the waterproofing and drainage of the aforementioned planting roof platform, the water seepage network pipe includes a drainage pipe laid along the surrounding of the roof platform and a water seepage pipe located in a crisscross pattern in the drainage pipe frame; When laying, the U-shaped openings of the drainage pipes and seepage pipes are laid down and flat on the waterproof layer; the walls of the drainage pipes and seepage pipes are evenly distributed with seepage holes; The seepage water in the pipe flows from the seepage pipe into the drain pipe and can be discharged from the floor drain.

In the above-mentioned construction method of waterproofing and drainage of planting roof platform, the geotextile is close to the outer surface of the seepage network pipe to wrap the seepage network pipe, or a layer of geotextile is directly laid outside the seepage network pipe, and then the geotextile is connected to the surface of the seepage network pipe through the sand filter layer. Compaction to prevent larger particles of filter sand from entering the seepage network pipe through the seepage hole to block the drainage channel.

In the construction method for the waterproofing and drainage of the planting roof platform, the sand filter layer is laid with coarse sand with a particle size of 1-3mm; when the filter sand layer is laid, the filter sand is compacted, and the height of the filter sand layer is flush with the top surface of the seepage network pipe or slightly above the top surface of drain and seepage pipes.

In the construction method for the waterproofing and drainage of the planting roof platform, the laying thickness of the planting soil layer is determined according to the plants to be planted, and is generally 300-500 mm.

According to the above-mentioned construction method for waterproofing and drainage of planting roof platform, a waterproofing and drainage structure for planting roof platform of the present invention comprises a floor drain arranged at a corner of the roof platform; a waterproof layer is arranged on the roof platform, and a water seepage network pipe is arranged on the waterproof layer; The outer surface of the water seepage network pipe is provided with a geotextile, and the geotextile is attached to the outer surface of the water seepage network pipe; the top surface of the geotextile is sequentially provided with a sand filter layer, a soft permeable plate and a planting soil layer from bottom to top.

In the above-mentioned waterproof and drainage structure of the planting roof platform, the periphery of the waterproof layer extends upward from the roof platform along the retaining wall to above the top surface of the planting soil layer.

In the above-mentioned waterproof and drainage structure of the planted roof platform, the water seepage network pipe includes drainage pipes laid along the surrounding of the roof platform and water seepage pipes crisscrossed in the drainage pipe frame; a corner of the drainage pipe is located above the floor drain of the roof platform; The cross-sectional shapes are all inverted U-shaped structures; seepage holes are evenly distributed on the walls of the drain pipes and seepage pipes.

Compared with the prior art, the present invention has the advantages of convenient construction, high construction efficiency, and can effectively shorten the construction period; in addition, the present invention also has the advantages of simple structure and low construction cost. On the basis of having the same waterproof and drainage effect as the prior art, and on the premise of ensuring the quality of the project, the present invention is more efficient and convenient in construction and saves man-hours.

Description of drawings

Fig. 1 is the structural representation of the present invention;

Fig. 2 is a schematic diagram of the structure of the water seepage network pipe of the present invention.

The marks in the figure are as follows: 1-roof platform, 2-floor drain, 3-waterproof layer, 4-water seepage network pipe, 5-geotextile, 6-filter sand layer, 7-soft permeable board, 8-planting soil layer, 9- Retaining wall, 10-drain pipe, 11-seepage pipe, 12-seepage hole.

Detailed ways

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

A construction method for waterproofing and drainage of a planted roof platform of the present invention is shown in Figures 1 and 2: the method is constructed according to the following steps: laying a waterproof layer 3 on the roof platform 1 → laying a seepage network pipe 4 on the waterproof layer 3 → The water seepage network pipe 4 is wrapped with a geotextile 5 → a sand filter layer 6 is laid on the geotextile 5 → a soft permeable board 7 is laid on the filter sand layer 6 → a planting soil layer 8 is laid on the soft permeable board 7 .

When laying the waterproof layer 3, the surrounding area of the waterproof layer 3 extends upward from the roof platform 1 along the retaining wall 9 to above the top surface of the planting soil layer 8; in order to prevent rainwater from infiltrating the roof platform 1 along the retaining wall 9. As shown in FIG. 2 , the water seepage network pipe 4 includes a drainage pipe 10 laid around the roof platform 1 and a water seepage pipe 11 located in the frame of the drainage pipe 10 in a crisscross pattern; Structure, when laying, the U-shaped openings of the drain pipe 10 and the seepage pipe 11 are laid down on the waterproof layer 3; the pipe walls of the drain pipe 10 and the seepage pipe 11 are evenly distributed with seepage holes 12; the corner of the drain pipe 10 is located on the roof platform 1 So that the seepage water in the seepage network pipe 4 can be discharged from the floor drain 2 after flowing into the drain pipe 10 from the seepage pipe 11 . The geotextile 5 is close to the outer surface of the seepage network pipe 4 to wrap the seepage network pipe 4, or directly lay a layer of geotextile 5 outside the seepage network pipe 4, and then the geotextile 5 and the surface of the seepage network pipe 4 are compacted through the sand filter layer 6 to prevent The larger particle filter sand enters the seepage network pipe 4 through the seepage hole 12 to block the drainage channel. The filter sand layer 6 is laid with coarse sand with a particle size of 1 to 3 mm; the filter sand is compacted when laying the filter sand layer 6, and the soft permeable plate 7 on the top surface of the filter sand layer 6 can be made of finished materials on the market. The relatively plastic mesh anti-slip mats and other materials used in the bathroom. The height of the sand filter layer 6 is flush with the top surface of the seepage network pipe 4 or slightly higher than the top surface of the drain pipe 10 and the seepage pipe 11 . The laying thickness of the planting soil layer 8 is determined according to the plants to be planted, and is generally 300-500 mm.

According to the construction method of the above-mentioned planting roof platform waterproof and drainage structure of the present invention, as shown in FIG. 1 and FIG. 2 , the structure includes a floor drain 2 arranged at a corner of the roof platform 1; it is characterized in that : A waterproof layer 3 is arranged on the roof platform 1, and a water seepage network pipe 4 is arranged on the waterproof layer 3; the outer surface of the water seepage network pipe 4 is provided with a geotextile 5, and the geotextile 5 is attached to the outer surface of the water seepage network pipe 4; A sand filter layer 6 , a soft permeable plate 7 and a planting soil layer 8 are arranged in sequence from bottom to top. The periphery of the waterproof layer 3 extends upward from the roof platform 1 along the retaining wall 9 to above the top surface of the planting soil layer 8 . The water seepage network pipe 4 includes a drain pipe 10 laid along the roof deck 1 and a water seepage pipe 11 crisscrossed in the frame of the drain pipe 10; a corner of the drain pipe 10 is located above the floor drain 2 of the roof platform 1; The shapes are all inverted U-shaped structures; water seepage holes 12 are evenly distributed on the pipe walls of the drain pipe 10 and the water seepage pipe 11 .

The method of the invention has convenient construction and high construction efficiency, and can effectively shorten the construction period. The invention has simple structure and low construction cost. The present invention has the same waterproof and drainage effect as the prior art. On the premise of ensuring the quality of the project, the construction is more efficient and convenient, saving man-hours.

Claims (9)

1. A construction method for preventing and draining water of a planting roof platform is characterized by comprising the following steps: the method comprises the following steps: laying a waterproof layer on a roof platform → laying a water seepage net pipe on the waterproof layer → wrapping geotextile outside the water seepage net pipe → laying a sand filtration layer on the geotextile → laying a soft water permeable plate on the sand filtration → laying a planting soil layer on the soft water permeable plate.

2. The waterproof and waterproof construction method for the planting roof platform according to claim 1, characterized in that: when the waterproof layer is laid, the periphery of the waterproof layer extends upwards from the roof platform to be above the top surface of the planting soil layer along the retaining wall; to prevent rain water from seeping into the roof deck along the retaining wall.

3. The waterproof and waterproof construction method for the planting roof platform according to claim 1, characterized in that: the water seepage network pipe comprises drain pipes laid along the periphery of the roof platform and water seepage pipes which are positioned in the drain pipe frame and are staggered vertically and horizontally; the cross sections of the drain pipe and the water seepage pipe are both in inverted U-shaped structures, and the U-shaped openings of the drain pipe and the water seepage pipe are horizontally placed on the waterproof layer downwards when the waterproof layer is laid; the pipe walls of the drain pipe and the water seepage pipe are uniformly distributed with water seepage holes; one corner of the drain pipe is positioned above the floor drain on the roof platform, so that the seepage water in the seepage water net pipe can be drained from the floor drain after flowing into the drain pipe from the seepage water pipe.

4. The waterproof and waterproof construction method for the planting roof platform according to claim 1, characterized in that: the geotextile is tightly attached to the outer surface of the water seepage net pipe to wrap the water seepage net pipe, or a layer of geotextile is directly laid outside the water seepage net pipe, and then the geotextile and the surface of the water seepage net pipe are compacted through the filtering sand layer, so that large-particle filtering sand is prevented from entering the water seepage net pipe through the water seepage holes to block the drainage channel.

5. The waterproof and waterproof construction method for the planting roof platform according to claim 4, characterized in that: the sand filtering layer is paved by coarse sand with the particle size of 1-3 mm; when laying the sand filtering layer, the sand filtering layer is compacted, and the height of the sand filtering layer is parallel to or slightly higher than the top surfaces of the water seepage pipe network and the water drainage pipe.

6. The waterproof and waterproof construction method for the planting roof platform according to claim 1, characterized in that: the laying thickness of the planting soil layer is determined according to the planted plants and generally ranges from 300 mm to 500 mm.

7. A planting roof platform waterproof and drainage structure formed by the planting roof platform waterproof and drainage construction method according to any one of claims 1 to 6, comprising a floor drain (2) arranged at one corner of the roof platform (1); the method is characterized in that: a waterproof layer (3) is arranged on the roof platform (1), and a water seepage net pipe (4) is arranged on the waterproof layer (3); the outer surface of the water seepage net pipe (4) is provided with a geotextile (5), and the geotextile (5) is attached to the outer surface of the water seepage net pipe (4); the top surface of the geotextile (5) is sequentially provided with a sand filtering layer (6), a soft permeable plate (7) and a planting soil layer (8) from bottom to top.

8. The planting roof deck drainage prevention structure of claim 7, wherein: the periphery of the waterproof layer (3) extends upwards from the roof platform (1) to the top surface of the planting soil layer (8) along the retaining wall (9).

9. The planting roof deck drainage prevention structure of claim 7, wherein: the water seepage network pipe (4) comprises drain pipes (10) laid along the periphery of the roof platform (1) and water seepage pipes (11) which are positioned in the frame of the drain pipes (10) and are criss-cross; one corner of the drain pipe (10) is positioned above the floor drain (2) of the roof platform (1); the cross sections of the drain pipe (10) and the water seepage pipe (11) are both inverted U-shaped structures; the pipe walls of the drain pipe (10) and the water seepage pipe (11) are uniformly distributed with water seepage holes (12).

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