CN116717038A - Planting roof waterproof structure and construction method - Google Patents
Planting roof waterproof structure and construction method Download PDFInfo
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- CN116717038A CN116717038A CN202310771213.3A CN202310771213A CN116717038A CN 116717038 A CN116717038 A CN 116717038A CN 202310771213 A CN202310771213 A CN 202310771213A CN 116717038 A CN116717038 A CN 116717038A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 47
- 239000010426 asphalt Substances 0.000 claims abstract description 35
- 239000004746 geotextile Substances 0.000 claims abstract description 35
- 239000000853 adhesive Substances 0.000 claims abstract description 31
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- 239000012943 hotmelt Substances 0.000 claims abstract description 7
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/24—Structural elements or technologies for improving thermal insulation
- Y02A30/254—Roof garden systems; Roof coverings with high solar reflectance
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B80/00—Architectural or constructional elements improving the thermal performance of buildings
- Y02B80/32—Roof garden systems
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- Road Paving Structures (AREA)
Abstract
The invention relates to a planting roof waterproof structure and a construction method, belonging to the technical field of planting roof waterproof, wherein the planting roof waterproof structure comprises a roof waterproof structure and a water collecting ditch; the roof waterproof structure comprises a reinforced concrete roof, a non-cured asphalt waterproof layer, a TPO self-adhesive waterproof layer, a plastic protection drain board, a geogrid and geotextiles; the non-solidified asphalt waterproof layer is hot-melt bonded on the plate surface of the reinforced concrete roof after shot blasting; the TPO self-adhesive waterproof layer is stuck on the non-solidified asphalt waterproof layer; the plastic protective drain plates are paved on the TPO self-adhesive waterproof layer, drain channels are reserved among the plastic protective drain plates along the drain direction, and fiber water filtering pipes are paved in the drain channels; the geogrid avoiding drainage channel is paved on the plastic protective drainage plate; the waterproof structure of the planted roof does not need slope finding and leveling construction, not only can meet the function of being used as a planting surface of a sponge city, but also effectively solves the problem of structural leakage.
Description
Technical Field
The invention belongs to the technical field of waterproof of planted roofs, and particularly relates to a waterproof structure of a planted roof and a construction method.
Background
At present, the function of a sponge city is given to most of the peripheral greening design of the building, and the functions of the sponge city are usually met by taking structural top plates such as basements, skirt house tower buildings and the like as planting roofs. When the roof is used as a planted roof, the structural roof needs to be subjected to waterproof treatment, and the planted roof needs to have a certain inclination so as to meet the drainage requirement in rainy seasons. In order to meet the drainage inclination, a slope needs to be found during construction, and in addition, in order to ensure the structural stability of a planted roof, leveling construction is needed before slope finding. Whether slope finding or averaging is difficult to construct or complicated in construction procedures, once construction is poor, long-term water accumulation of a structural top plate is easily caused, and finally structural leakage is caused.
The existing waterproof structure mostly adopts a method of asphalt waterproof coiled materials and paint, air bubbles are easy to appear between a structural top plate and the asphalt waterproof coiled materials, and structural leakage is easy to occur after the waterproof structure is used for a long time.
The structural roof is large in construction range, different leveling layers and slope finding surfaces are required to be arranged according to sponge drainage design, and construction difficulty is large. Poor construction can cause long-term ponding of the structural roof, ultimately resulting in structural leakage.
Disclosure of Invention
In order to overcome the problems in the background art, the invention provides the planting roof waterproof structure and the construction method, slope finding and leveling construction are not needed, and the obtained planting roof waterproof structure not only can meet the function of being used as a planting surface of a sponge city, but also effectively solves the problem of structural leakage, and has the characteristics of simple construction and firm structure.
In order to achieve the above purpose, the invention is realized by the following technical scheme:
the planting roof waterproof structure comprises a roof waterproof structure and a water collecting ditch; the roof waterproof structure comprises a reinforced concrete roof 1, a non-cured asphalt waterproof layer 2, a TPO self-adhesive waterproof layer 3, a plastic protection drain board 4, a geogrid 5 and geotextiles 6;
the non-solidified asphalt waterproof layer 2 is thermally fused and bonded on the surface of the reinforced concrete top plate 1 after shot blasting;
the TPO self-adhesive waterproof layer 3 is stuck on the non-solidified asphalt waterproof layer 2;
the plastic protection drain boards 4 are paved on the TPO self-adhesive waterproof layer 3, drain channels 7 are reserved among the plastic protection drain boards 4 along the drain direction, and fiber water filtering pipes 8 are paved in the drain channels 7;
the geogrid 5 avoids the drainage channel 7 and is paved on the plastic protective drainage plate 4; the geotextile 6 is paved on the plastic protective drain board 4;
the water collecting channel is arranged along the edge of the roof plate.
The construction method of the waterproof structure of the planted roof comprises the following steps:
(1) Top plate shot blasting construction
Shot blasting is carried out on the roof plate, the shot blasting depth is 1-3mm, and the surface roughness SP3
(2) Construction of composite waterproof layer
Immediately performing waterproof layer construction after shot blasting;
carrying out coiled material paving according to elastic wires by hot melting non-cured rubber asphalt waterproof paint in advance, wherein the heating and construction temperature is 150-180 ℃, and the paving thickness is 2mm;
paving a TPO self-adhesive waterproof layer on the non-cured rubber asphalt waterproof layer, so that the non-cured rubber asphalt waterproof layer and the TPO self-adhesive waterproof layer are integrated into a soft and firm double skin layer;
(3) Construction of drain pipe and filtering pipe
After the composite waterproof layer is qualified by inspection, a drainage system is constructed in time so as to prevent the composite waterproof layer from being damaged;
paving a plastic protective drain board on the composite waterproof layer, and reserving a gap for placing a fiber water filtering pipe when paving the plastic protective drain board; after the plastic protective drain board is laid, carrying out large-surface leveling; when the plastic protective drain board is paved at the corner of the top plate and the side wall, the plastic protective drain board extends downwards;
after the plastic protective drain board is paved, a fiber filter pipe is arranged, a geotextile tube bag is wrapped outside the fiber filter pipe, and the fiber filter pipe is arranged on a gap reserved on the long side of the plastic protective drain board;
(4) Geotextile construction
A geogrid is paved on the plastic protective drain board to avoid the fiber water filtering pipe, and geotextile is paved on the geogrid;
(5) Construction of water collecting structure
A water collecting ditch is arranged at the edge of the top plate and is communicated with the water collecting well;
(6) Planting soil backfilling
(7) Sponge greening construction
After filling, the construction of the rainwater garden and the water storage device is carried out according to the sponge city construction drawing
Further, in the step (2), the TPO self-adhesive waterproof layer is welded by an automatic hot air welding machine, and the effective welding width is not less than 30mm; the short sides adopt a butt joint mode, a 160mm wide and 2000mm long self-adhesive coiled material is adhered under the joint, and a 160mm wide and 2000mm long homogeneous TPO sheet is covered on the joint.
Further, in the step (2), the long side direction of the plastic protective drain board is consistent with the drain direction; the joint of the long sides of the plastic protective drain board adopts hot-melt welding, the short sides are lapped in a buckling mode, and the lapping width is 1-2 bosses.
Further, in the step (2), a slit width of 5cm is reserved as a drainage channel for each 8m interval in the width direction of the plastic protective drainage plate.
Further, the laying direction of the geotextile is consistent with the direction of the plastic protective drain board, the overlap joint width of the geotextile is 200mm, the overlap joint seam and the overlap joint seam of the plastic protective drain board are staggered by not less than 300mm, and the overlap joint seam of the geotextile is sewn.
The invention has the beneficial effects that:
according to the invention, the non-cured asphalt waterproof layer is paved on the reinforced concrete roof, so that the non-cured asphalt waterproof layer can prevent the structural seepage and simultaneously can seal cracks, holes and the like on the reinforced concrete roof, thereby avoiding the structural roof leakage caused by the water channeling of the reinforced concrete roof. Meanwhile, a hot-melt bonded non-cured asphalt waterproof layer structure is paved on the reinforced concrete roof, so that complex leveling procedures are avoided.
According to the invention, the TPO self-adhesive waterproof layer is paved on the non-cured asphalt waterproof layer, so that a double waterproof structure which is totally closed from top to bottom and is bonded by the skin type puncture-resistant coiled material is formed on the double waterproof structure, and the roof of the structure is effectively prevented from leaking.
According to the invention, the plastic protective drain boards are arranged, the fiber water filtering pipes are paved between the plastic protective drain boards, and rainwater can be smoothly discharged without slope finding.
Drawings
FIG. 1 is a cross-sectional view of a roof waterproof structure of the present invention;
FIG. 2 is an enlarged view of the bonding structure of the non-cured asphalt waterproof layer and the reinforced concrete roof according to the present invention;
FIG. 3 is a schematic illustration of a construction process flow of the present invention;
in the figure, a 1-reinforced concrete top plate, a 2-non-cured asphalt waterproof layer, a 3-TPO self-adhesive waterproof layer, a 4-plastic protective drain board, a 5-geogrid, a 6-geotextile, a 7-drainage channel, an 8-fiber water filtering pipe and a 9-planting soil layer are arranged.
Detailed Description
In order to make the objects, technical solutions and advantageous effects of the present invention more apparent, preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so as to facilitate understanding of the skilled person.
Example 1
As shown in fig. 1-2, the planting roof waterproof structure comprises a roof waterproof structure and a water collecting ditch, wherein the roof waterproof structure comprises a reinforced concrete roof 1, a non-cured asphalt waterproof layer 2, a TPO self-adhesive waterproof layer 3, a plastic protection drain board 4, a geogrid 5 and geotextile 6.
The non-solidified asphalt waterproof layer 2 is bonded on the reinforced concrete roof 1 by hot melting, the bonding method is that the reinforced concrete roof 1 is cleaned and shot blasting is carried out, the concrete surface is obviously different from the surface before cleaning, and tiny impurities and floating pulp are cleaned to form a uniform and rough surface. Meanwhile, the defects such as concrete cracks and holes are also clear. The non-cured rubber asphalt waterproof paint is hot-melted in advance, the reinforced concrete roof 1 paved after shot blasting is constructed, and cracks and holes are blocked (as shown in figure 2) when the hot-melted rubber asphalt waterproof paint material is paved, so that the structural roof leakage caused by water channeling of the reinforced concrete roof is avoided.
After the non-cured asphalt waterproof layer 2 is paved, a TPO self-adhesive waterproof layer 3 (thermoplastic polyolefin self-adhesive waterproof layer) is paved on the non-cured asphalt waterproof layer 2, and the whole non-cured asphalt waterproof layer 2 is paved with the TPO self-adhesive waterproof layer 3. The TPO self-adhesive waterproof layer 3 is subjected to skin type bubble-free bonding on the non-cured asphalt waterproof layer 2 to form a double waterproof structure which is totally closed at the bottom and bonded to an upper skin type puncture-resistant coiled material, so that the roof of the structure is effectively prevented from leaking.
The plastic protective drain board 4 is paved on the TPO self-adhesive waterproof layer 3, and the long side direction of the plastic protective drain board 4 is consistent with the drain direction; the joint of the long sides of the plastic protective drain board 4 adopts hot melt welding, the short sides are lapped in a buckling mode, and the lapping width is 1-2 bosses. The plastic protective drain board 4 is provided with a drain channel 7 with a seam width of 5cm reserved every 8m, the drain channel 7 is consistent with the drain direction, a fiber water filtering pipe 8 is paved in the drain channel 7, and the drain channel 7 plays a role in fixing the fiber water filtering pipe 8. The fiber filter pipe 8 is wrapped with geotextile to prevent water collected by the fiber filter pipe 8 from diffusing to the periphery. The diameter of the fiber water filtering pipe 8 is 8-10cm. Compared with the traditional drainage layer only provided with the drainage plate, the fiber drainage pipe 8 can increase the instant drainage in rainy seasons, and can also play a certain role in water storage in dry seasons to provide water for plant roots.
The geogrid 5 is laid on the plastic protective drain board 4 avoiding the drain passage 7, and the geotechnical cloth 6 is laid on the plastic protective drain board 4. The function of the geogrid is to prevent geotextile from being pressed to the drainage plane to block the drainage channel after filling the planting soil layer 9.
The laying direction of the geotextile 6 is consistent with the direction of the plastic protective drain board 4, the lap joint width of the geotextile 6 is 200mm, the lap joint and the lap joint of the plastic protective drain board 4 are staggered by not less than 300mm, and the lap joint of the geotextile 6 is stitched.
Example 2
The construction method of the waterproof structure of the planted roof as described in embodiment 1, comprising the steps of:
(1) Top plate shot blasting construction
Preparation before construction: the structural top plate is cleaned before construction, redundant stacked objects are removed, and the ground is kept clean and tidy without soil. The surface of the top plate should be flat, clean and dry, and empty drum, loose, honeycomb, pitted surface, floating slag, floating soil, release agent and greasy dirt cannot be produced; the special epoxy mortar is adopted to repair and fill up the large depressions so as to ensure the overall flatness of the base surface and ensure the smooth running of the shot blasting equipment; after the base layer is cleaned, the base layer is required to be firm, firm and clean, and shot blasting construction can be performed after the base layer reaches the strength. If the surface of the top plate is uneven, when the protrusions such as the steel bar heads and the wrapping blocks are arranged, manual cleaning should be performed in time, and polishing is smooth.
The depth of shot blasting construction treatment is determined according to the site, and the shot blasting control standard is based on visual inspection of no slurry. The thickness of the general floating slurry layer is not more than 3mm, so the shot blasting treatment depth is basically 1mm, the treatment depth at the place with large local floating slurry layer thickness is 3mm, the treated fresh basic layer primary exposed bone material is suitable, and the surface roughness is generally controlled to be SP3. Otherwise, if the roughness is too large, a large amount of priming and repairing workload is brought, and the bonding strength is not facilitated; if the rough bottom is too small, insufficient adhesion may result. After shot blasting construction, the concrete surface is obviously different from that before cleaning, and both the tiny impurities and the slurry are cleaned to expose fresh concrete, so that a uniform and rough surface is formed. Meanwhile, the defects such as concrete cracks and holes are also clear, and the repairing is carried out after shot blasting and before waterproof construction. The construction progress should be arranged reasonably in the shot blasting construction, the surface after shot blasting should not be exposed for too long, the construction is recommended to be finished in the same day as the shot blasting, or the construction is finished along with the shot blasting, so that secondary pollution of the base surface is prevented.
(2) Construction of composite waterproof layer
Asphalt waterproof coating construction:
the heating and construction temperature of the pre-hot-melt non-cured rubber asphalt waterproof paint is preferably 150-180 ℃. And (3) performing coil test laying according to the elastic wire, ensuring that the lap joint width is 80mm, and ensuring that the coil is straight. Folding the coiled material along the length direction, tearing off the isolating film, scraping the non-cured rubber asphalt waterproof paint heated in advance on the folded coiled material, spreading, discharging air, compacting, and constructing the other half again. The non-cured rubber asphalt waterproof paint uses a rubber scraping plate with saw teeth according to the weight of 2.5kg/m 2 The dosage is controlled, and the thickness is ensured to be 2mm.
PO self-adhesive coiled material construction:
before the construction of the composite waterproof layer, the Thermoplastic Polyolefin (TPO) self-adhesive waterproof coiled material is uncoiled, uncoiled and tiled for 15 minutes so as to fully release coiled material curling stress and avoid later post-construction shrinkage of the coiled material. The long sides of the Thermoplastic Polyolefin (TPO) self-adhesive waterproof coiled materials are mortise and tenon type lap joints, the self-adhesive interlayer is bonded, the TPO sheet layers are welded by an automatic hot air welding machine, and the effective welding width is not less than 30mm. The short sides are in butt joint, 160mm wide and 2000mm long self-adhesive coiled materials are adhered under the joints, 160mm wide and 2000mm long homogeneous TPO sheets are covered on the joints, and the homogeneous TPO sheets are welded on the short side butt joint after the long sides are welded. The short edge joints of two adjacent Thermoplastic Polyolefin (TPO) self-adhesive waterproof coiled materials are staggered by at least 500mm.
(3) Construction of drain pipe and filtering pipe
After the waterproof layer is qualified, a drainage system is constructed in time so as to prevent the waterproof layer from being damaged. And a plastic protective drain board is paved, wherein the specification of the drain board can be 30mm high, 2.4m wide and 8m long. When in construction, the long side direction of the drain board is consistent with the drain direction, the long side lap joint of the drain board is 100mm, and a double-slit hot-melt welding machine is adopted for welding; the short sides are lapped in a buckling mode, and the lapping width is 1-2 bosses. The drain board is laid, and the slit width of 5cm is reserved at intervals of 8m for placing the fiber drain pipe. After the drainage plate is laid, the large surface is flat, and the lap joint of the short side is not suitable for warping. When the plastic protective drain board is paved at the corner of the top plate and the side wall, the plastic protective drain board extends downwards for 0.5m.
After the drainage plate is paved, a fiber filter pipe is installed, a geotextile pipe bag is wrapped outside the fiber filter pipe, and the filter pipe is installed on a 5cm gap reserved on the long side of the drainage plate. The filter pipes are in butt joint and are connected by special buckles, and the number of connecting buckles is not less than 2. The filter pipe is arranged at the edge of the top plate and is flush with the underground side wall.
(4) Geotextile construction
And after the water filtering pipe is laid, a geogrid is laid to serve as a support, and the lap joint length is 100mm. The function of geogrid is to prevent geotextile from being pressed to the drainage plane after filling soil and to block the drainage channel.
Geotextile is paved on the geogrid, the paving direction of the geotextile is consistent with the direction of the plastic protective drain board, the overlap joint width of the geotextile is 200mm, the overlap joint seam and the drain board overlap joint seam are staggered by not less than 300mm, and the geotextile overlap joint seam is sewn by a sewing machine. The geotextile is laid naturally and smoothly without wrinkling, curling and loosening. When the geotextile is paved at the corner of the top plate and the side wall, the geotextile extends downwards for 2.2m so as to wrap blind ditches at the edge of the top plate.
(5) Construction of water collecting structure
The cross section size of the blind ditch arranged at the edge of the top plate is 500mm multiplied by 500mm, and a side wall waterproof layer should be paid attention to during excavation so as to prevent damage. Before the gravel is backfilled in the blind ditch, tamping the bottom, backfilling graded gravel with the grain size of 10-40 mm in the ditch after laying geotechnical cloth, and starting to install the blind ditch water filtering pipe when the gravel is backfilled to the thickness of 250 mm. The filter pipes are in butt joint and are connected by special buckles, and the number of connecting buckles is not less than 2. And (5) continuously backfilling the crushed stone after the water filtering pipe is installed, and covering the surface of the crushed stone with non-woven fabrics after backfilling. And the water in the blind ditch is collected and then led to a water collecting well, and finally discharged to a municipal rainwater and sewage observation well. Through built-in water collecting facilities, part of rainwater can be collected and used for supplementing a fire water pond and used for greening water.
(6) Planting soil backfilling
Backfilling planting soil by adopting a mode of manually matching with a dump truck and a loader, unloading by a dump truck reversing method, flattening by the loader, and loading large equipment when the backfilling is 500mm thick. In the backfilling process, the special person for the installation and the arrangement of the waterproof and drainage construction team is on duty on site, and the phenomenon of damage in the backfilling process is strictly prevented.
(7) Sponge greening construction
And after filling, the construction of the rainwater garden and the water storage device is carried out according to the sponge city construction drawing. Wherein the rainwater garden is mostly constructed by reverse excavation. After the leveling compaction excavation is finished, a gravel cushion layer, a non-woven geotextile filter layer, a fine sand sedimentation layer and a fine sand cushion layer are sequentially arranged from bottom to top, and the thickness of each layer is required to be ensured to be consistent with the design. Meanwhile, various green plants are planted on the surrounding ground so as to play a role in stabilizing water and soil. The water storage module is arranged in part of the filled soil and used for storing water, and the water storage module is arranged at the position with the fiber water filtering pipe.
The invention not only omits the construction of a leveling layer and a slope finding layer, omits complicated structural layers (such as an isolating layer, a concrete protecting layer and the like), but also saves a great amount of material cost and time cost. And the coil is paved and pasted with good fitting property and one-step forming effect, so that a great amount of construction period and cost for repairing and leveling are saved. Compared with the traditional waterproof structure adopting a single layer, the waterproof structure has the following specific economic benefits:
；
taking a structural top plate with 5000 square meters as an example, the construction method is used for water-proof and drainage construction, so that 12.26 ten thousand yuan of economic benefit is generated, and the economic benefit is good.
Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (6)
1. The planting roof waterproof structure is characterized by comprising a roof waterproof structure and a water collecting ditch; the roof waterproof structure comprises a reinforced concrete roof (1), a non-cured asphalt waterproof layer (2), a TPO self-adhesive waterproof layer (3), a plastic protective drain board (4), a geogrid (5) and geotextile (6);
the non-solidified asphalt waterproof layer (2) is bonded on the surface of the reinforced concrete top plate (1) through hot melting after shot blasting;
the TPO self-adhesive waterproof layer (3) is stuck on the non-solidified asphalt waterproof layer (2);
the plastic protection drain boards (4) are paved on the TPO self-adhesive waterproof layer (3), drain channels (7) are reserved among the plastic protection drain boards (4) along the drain direction, and fiber water filtering pipes (8) are paved in the drain channels (7);
the geogrid (5) is laid on the plastic protective drain board (4) by avoiding the drain channel (7); the geotextile (6) is paved on the plastic protective drain board (4);
the water collecting channel is arranged along the edge of the roof plate.
2. The waterproof structure for a planted roof as claimed in claim 1, wherein the construction method comprises the steps of:
(1) Top plate shot blasting construction
Shot blasting is carried out on the roof plate, the shot blasting depth is 1-3mm, and the surface roughness SP3
(2) Construction of composite waterproof layer
Immediately performing waterproof layer construction after shot blasting;
carrying out coiled material paving according to elastic wires by hot melting non-cured rubber asphalt waterproof paint in advance, wherein the heating and construction temperature is 150-180 ℃, and the paving thickness is 2mm;
paving a TPO self-adhesive waterproof layer on the non-cured rubber asphalt waterproof layer, so that the non-cured rubber asphalt waterproof layer and the TPO self-adhesive waterproof layer are integrated into a soft and firm double skin layer;
(3) Construction of drain pipe and filtering pipe
After the composite waterproof layer is qualified by inspection, a drainage system is constructed in time so as to prevent the composite waterproof layer from being damaged;
paving a plastic protective drain board on the composite waterproof layer, and reserving a gap for placing a fiber water filtering pipe when paving the plastic protective drain board; after the plastic protective drain board is laid, carrying out large-surface leveling; when the plastic protective drain board is paved at the corner of the top plate and the side wall, the plastic protective drain board extends downwards;
after the plastic protective drain board is paved, a fiber filter pipe is arranged, a geotextile tube bag is wrapped outside the fiber filter pipe, and the fiber filter pipe is arranged on a gap reserved on the long side of the plastic protective drain board;
(4) Geotextile construction
A geogrid is paved on the plastic protective drain board to avoid the fiber water filtering pipe, and geotextile is paved on the geogrid;
(5) Construction of water collecting structure
A water collecting ditch is arranged at the edge of the top plate and is communicated with the water collecting well;
(6) Planting soil backfilling
(7) Sponge greening construction
And after filling, the construction of the rainwater garden and the water storage device is carried out according to the sponge city construction drawing.
3. The construction method according to claim 2, wherein in the step (2), the TPO self-adhesive waterproof layer is welded by an automatic hot air welding machine, and the effective welding width is not less than 30mm; the short sides adopt a butt joint mode, a 160mm wide and 2000mm long self-adhesive coiled material is adhered under the joint, and a 160mm wide and 2000mm long homogeneous TPO sheet is covered on the joint.
4. The construction method according to claim 2, wherein in the step (2), the long side direction of the plastic protective drain plate is identical to the drain direction; the joint of the long sides of the plastic protective drain board adopts hot-melt welding, the short sides are lapped in a buckling mode, and the lapping width is 1-2 bosses.
5. The construction method according to claim 2, wherein in the step (2), a slit width of 5cm is reserved as a drainage channel every 8m in the width direction of the plastic protective drain plate.
6. The construction method according to claim 2, wherein the geotextile is laid in the same direction as the plastic protective drain board, the geotextile overlap width is 200mm, the overlap joint is not less than 300mm from the plastic protective drain board overlap joint, and the geotextile overlap joint is sewn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310771213.3A CN116717038A (en) | 2023-06-28 | 2023-06-28 | Planting roof waterproof structure and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310771213.3A CN116717038A (en) | 2023-06-28 | 2023-06-28 | Planting roof waterproof structure and construction method |
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| Publication Number | Publication Date |
|---|---|
| CN116717038A true CN116717038A (en) | 2023-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310771213.3A Pending CN116717038A (en) | 2023-06-28 | 2023-06-28 | Planting roof waterproof structure and construction method |
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| Country | Link |
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| CN (1) | CN116717038A (en) |
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