CN212641965U - Go up people's afforestation roofing floor drain node structure - Google Patents

Abstract

The utility model provides a people's afforestation roofing floor drain node structure, includes the roofing structural layer, still includes waterproof heat preservation layer, protection isolation layer, solid-state drainage and storage layer, separates soil baffle, banket layer, plant layer, pavement district and floor drain district. The plant layer comprises herbaceous plant seeds and Crassulaceae plant seedlings. The utility model relates to an it afforests roofing floor drain node structure utilizes the plant separation solar energy of planting on the roofing roof to prevent the overheated energy-concerving and environment-protective system in room. The principle is that a heat-insulating, anti-seepage, environment-friendly and energy-saving integrally-covered roof system is formed by laying and constructing a protective isolation layer, a water-dredging layer, a soil-isolation layer, a culture layer, a plant layer and the like. The utility model has the characteristics of the construction speed is fast, with low costs, light in weight to need not maintain hardly, the inspection number of times is lower.

Description

Go up people's afforestation roofing floor drain node structure

Technical Field

The utility model relates to a roof greening field, especially a people's afforestation roofing floor drain node structure.

Background

The greening roof is characterized in that a lawn, a ground cover, small shrubs and climbing plants are utilized to cover and green the roof and the top plate of the underground building according to the characteristic that the building load is small. A small path and a courtyard can be left on the roof for people to walk and stay. The existing greening roof generally adopts lawns, but an irrigation system is required to be arranged independently, so that resources are wasted; meanwhile, the existing greening roof is only a building roof supplemented with planting soil or provided with containers for planting plants, has poor functional associativity with the roof, and cannot form an integral covering roof system with multifunctional heat insulation, permeability resistance, environmental protection and energy conservation; and meanwhile, the cost is high, and the maintenance cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a go up people's afforestation roofing floor drain node structure, current afforestation roofing function singleness will be solved and irrigation system need set up alone, the lower technical problem of application scope.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a greening roof floor drain node structure for the upper people comprises a roof structure layer, a waterproof heat-insulating layer, a protective isolation layer, a solid water drainage and storage layer, a soil isolation baffle, a soil culture layer, a plant layer, a sidewalk area and a floor drain area, wherein the waterproof heat-insulating layer, the protective isolation layer, the solid water drainage and storage layer, the soil isolation layer, the soil culture layer, the plant layer, the sidewalk area and the floor drain area are sequentially compounded on,

the waterproof heat-insulating layer is a root puncture-resistant waterproof heat-insulating layer,

the protective isolation layer is laid on the upper side of the waterproof heat-insulating layer in the same direction as the waterproof heat-insulating layer,

the solid drainage and storage layer is laid on the upper side of the protective isolation layer and comprises a plate body, a water storage tank is uniformly and inwards formed on the upper side of the plate body downwards, the periphery of the water storage tank forms a ledge relative to the water storage tank, drain holes are formed in the ledge, the ledge is positioned at the four corners of the water storage tank and upwards forms bulges, and a drainage tank is formed below the ledge,

the soil isolation layer is a filtering fiber layer, the lower side surface of the filtering fiber layer is fully adhered and bonded with the solid water drainage and storage layer through spraying glue,

the soil separation baffle is vertically arranged and enclosed at the edge of the ridging layer of the planting area, a group of loosening drain holes are arranged on the soil separation baffle,

the ridging layer is sprayed on the upper side of the soil isolation layer and is formed by mixing planting soil, vermiculite, pine needle soil and fertilizer,

the plant layer comprises Crassulaceae plant seedlings and herbaceous plant seeds, and the plant layer is planted in the hilling layer.

The sidewalk area is positioned between the soil separation baffle plates of the planting areas at the upper side and the two sides of the roof structure layer,

the sidewalk area comprises a waterproof heat-insulating layer, a protective isolation layer, a double-layer PE film sliding layer, a drainage plate, a gravel mixture layer and a pavement plate layer which are sequentially compounded on the upper side surface of the roof structure layer from bottom to top.

The floor drain area is arranged on the sidewalk area, the roof structure layer of the floor drain area forms a floor drain space which is broken from small to large in a ladder way from bottom to top, transition layers which are matched with the roof structure layer in shape and connected with the roof structure layer are arranged on four sides of the floor drain space, the middle of the floor drain space is communicated up and down,

the upper side surface of the edge part of the transition layer is flush with the upper side surface of the roof structure layer, the upper side surface of the transition layer gradually inclines downwards from the edge part to the center, the upper side surface of the transition layer is connected with a waterproof heat-insulating layer, a protective isolation layer, a double-layer PE film sliding layer and a drainage plate which are sequentially compounded from bottom to top and extend from a sidewalk area to a floor drain area,

the extension end of drain bar weak point is in downside structure, and the drain bar upside of floor drain district both sides has fallen to put and has lapped the base, laps base and drain bar overlap joint all around, and the side facade of lapping the base is equipped with the infiltration space, and the outside cladding in side facade infiltration space has the filter screen, the upside of lapping the base is put flatly and is had steel sheathing, and the four corners of steel sheathing has the nut of height-adjustable and roughness, all around lapping base and steel sheathing unit all with pavement district's rubble mixture layer top tight.

The solid water drainage layer is made of polyethylene regenerated material,

the protective isolation layer is an acrylic acid recycling fiber layer, the filtering fiber layer is a polypropylene layer, the surface pore diameter of the polypropylene layer is between 0.06mm and 0.2mm, the puncture resistance bearing capacity is at least 1.2 kN, and the vertical water permeability is at least 130L/sm;

the soil separation baffle is an aluminum plate, the aperture of the loosening drain hole is 5-8 mm, and the aperture distance is not more than 10 mm.

The thickness of the culture soil layer is 80-100 mm, the pH value is 6.0-8.5, and the weight is 1140 kg/m for carrying out double-row high-speed thin film cultivation and carrying out double-row high-speed thin film cultivation.

The double-layer PE film sliding layer is laid on the upper side of the protective isolation layer, two ends of the double-layer PE film sliding layer extend towards the planting area,

the drainage plate is laid on the upper side of the double-layer PE film sliding layer and made of polyethylene regenerated material,

the gravel mixture layer is spread on the upper side of the drainage plate, the thickness of the gravel mixture layer is 30mm-50mm, the gravel mixture comprises gravel with different grain diameters, the grain diameter range of the gravel is 4mm-8mm,

the pavement slab layer is formed by paving unit pavement slabs on the gravel mixture layer, and the gap between every two adjacent unit pavement slabs is not more than 10 mm.

Compared with the prior art the utility model has the following characteristics and beneficial effect:

the utility model relates to an it afforests roofing floor drain node structure utilizes the plant separation solar energy of planting on the roofing roof to prevent the overheated energy-concerving and environment-protective system in room. The principle is that a heat-insulating, anti-seepage, environment-friendly and energy-saving integrally-covered roof system is formed by laying construction of various layers such as a protective isolation layer, a water-dredging layer, a soil-isolation layer, a culture soil layer and a plant layer and a water supply, storage, dredging and drainage system. The utility model is like a living plant blanket, and has the characteristics of high building speed, low cost, light weight, almost no maintenance and low checking times.

The method comprises the following specific steps:

firstly, the energy-saving and environment-friendly effects are obvious: the combination of plants planted on the roof and the heat-insulating material can effectively reduce the energy consumption of the building and improve the comfort level of the indoor space of the building.

Secondly, the application range is wide: the requirement on the roof is low, the building is less limited, and the load influence on the roof is small; the green plants have various varieties, are short and wind-resistant, do not need a large amount of water and fertilizer, are resistant to pollution and are easy to survive.

Thirdly, the process has strong operability, simple construction and simple operation.

Fourthly, the economic benefit is obvious: the period of a project is short, constructors are few, the life of vegetation is strong, maintenance is not needed in the later stage, once green planting engineering is completed, positive influence is generated on the environment, the environment aging resistance of materials is strong, the materials are not prone to degradation, the whole service life can reach 50 years, an irrigation system does not need to be arranged independently, and the problem of plant maintenance can be solved only by natural precipitation.

Fifthly, protecting a roof waterproof layer: the roof greening protects the roof waterproof layer from being damaged by negative factors such as extreme temperature difference, ultraviolet radiation, hail impact and the like, prolongs the service life of the roof and saves the cost.

Sixthly, rainwater recycling is realized: compared with the common green plant roof, the engineering greening can realize the recycling of 40-80% of annual precipitation.

Seventhly, the expenditure of rainwater discharge cost is reduced: more and more cities implement regulations for collecting rainwater drainage fees, according to the regulations, householders of ordinary roofs pay more rainwater drainage fees, and greening roofs pay less fees for recovering rainwater.

Eighthly, the maintenance cost and the water consumption cost are almost zero, the cost is 160 yuan per square meter for 120 plus materials, the cost of the domestic common green planting roof is 220 yuan per square meter for 180 plus materials, the water consumption cost is 10L per square meter, and the maintenance cost is 400 yuan per day for 200 plus materials. The utility model discloses can make on the material transportation with technical skill operation shorten the time limit for a project more, more have its irreplaceable advantage on later maintenance and the water conservation.

Ninthly, reducing the peak value of the water discharge: in strong rainstorm weather, the greening engineering can play a role in buffering drainage, and the drainage pressure of the roof drainage pipeline is reduced.

Tenthly, improving the climate: the greening range and the nearby climate are improved through transpiration. The recovered rainwater is evaporated again, and the effect of reducing the environmental temperature is achieved.

Eleven, air purification: the soil and the green can adsorb the atmospheric floating dust and decompose harmful substances, thereby achieving the effect of purifying the air. The growth of the plants will also effectively reduce the carbon dioxide content of the air.

Twelfth, auxiliary heat insulation and cold resistance: the roof greening is equivalent to a second heat preservation measure, and helps achieve the effect of 'warm in winter and cool in summer' in a room.

Thirteen, improving the ecological environment: creating ecological environment, improving city environment appearance, raising the quality of city life and working environment and weakening city noise effectively.

The utility model is suitable for a construction of green roofing of planting, especially obvious to the region effect of four seasons clarity.

Drawings

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

Fig. 1 is a schematic structural diagram of the sidewalk area of the present invention.

Fig. 2 is an enlarged view of the structure of the soil-blocking baffle.

Fig. 3 is an enlarged view of the structure of the solid drainage aquifer.

Fig. 4 is a schematic structural diagram of the earth leakage region of the present invention.

Reference numerals: 1-a roof structure layer, 2-a waterproof insulating layer, 3-a protective isolation layer, 4-a solid water drainage and storage layer, 41-a water storage tank, 42-a ledge, 43-a drain hole, 44-a bump, 45-a drain tank, 5-a soil isolation layer, 6-a soil isolation baffle, 61-a loose drain hole, 7-a soil culture layer, 8-a plant layer, 9-a double-layer PE film sliding layer, 10-a drain plate, 11-a gravel mixture layer, 12-a road panel layer, 13-a floor drain space, 14-a transition layer, 15-a cover plate base, 16-a water seepage gap and 17-a steel cover plate.

Detailed Description

Referring to fig. 1-3, the embodiment of the invention relates to a roof floor drain node structure for people living and greening, which comprises a roof structure layer 1, and further comprises a waterproof heat-insulating layer 2, a protective isolation layer 3, a solid water drainage and storage layer 4, a soil isolation layer 5, a soil isolation baffle 6, a ridging layer 7, a plant layer 8, a sidewalk area and a floor drain area which are sequentially compounded on the upper side surface of the roof structure layer 1 from bottom to top in a planting area of the roof structure layer 1.

The waterproof heat-insulating layer 2 is a root puncture-resistant acrylic acid recycled fiber waterproof heat-insulating layer.

The protective isolation layer 3 is laid on the upper side of the waterproof heat-insulating layer 2, the laying direction is the same as that of the waterproof heat-insulating layer 2, the joint part of the protective isolation layer and the vertical wall is upturned by 100mm, and the longitudinal and transverse lap joint width is 100 mm. The pipe well part of the pipeline and the pipe well part which are protruded out of the roof are turned upwards by 100 mm. The protective isolation layer 3 is an acrylic acid recycled fiber layer. Class 2 material, a material thickness of about 3mm, a weight per square meter of about 300g, resistance to mechanical stresses, separation of the different materials. The protective insulating layer RMS 300 mainly functions to protect the waterproof insulating layer against mechanical stress, and to insulate the upper and lower materials.

The solid water drainage and storage layer 4 is laid on the upper side of the protective isolation layer 3, the solid water drainage and storage layer 4 is made of high-density polyethylene regenerated materials, the thickness of the solid water drainage and storage layer is about 25mm, the weight of the solid water drainage and storage layer per square meter is 1.35 kilograms, the color of the solid water drainage and storage layer is black or gray, the maximum compression strength of the solid water drainage and storage layer is 161 kilonewtons per square meter, and the filling amount of the solid water drainage and storage.

Referring to fig. 3, the solid drainage and storage layer 4 includes a plate body, a storage tank 41 is formed on the upper side of the plate body and is recessed downward uniformly, a ledge 42 is formed around the storage tank 41 opposite to the storage tank, a drain hole 43 is formed on the ledge 42, a protrusion 44 is formed on the ledge at the four corners of the storage tank, and a drainage tank 45 is formed below the ledge 42.

The plate body is FKD 25, is paved on RMS 300 in a butt joint mode, is provided with a vent hole and a vent hole, and plays a role in water drainage and water storage. Having mainly played the role of rainwater collection and reducing rainfall peak outflow alleviating pipeline pressure, the FKD 25 water storage capacity thereof is about 15L/m-20L/m. For the green plants, rainwater permeates soil and enters the solid drainage and storage layer, the rainwater is collected in the water storage tank firstly, and flows into the drainage tank through the drainage hole after being saturated. Due to the concave-convex structure of the solid water drainage and storage layer, the flow path of rainwater in the drainage channel is greatly increased, and the pressure of a drainage system is relieved. According to the data FKD 25 increasing the rain flow path about 10 times, every two square meters of FKD 25 would increase the rain flow path to about 40 m.

The soil barrier layer 5 is a filter fiber layer, and the FIL105 is a 100% polypropylene layer for a base layer, has a thickness of about 1.1 mm, a weight of about 105 g/m, and a white color, and prevents fine particle contamination.

The mechanical filtration efficiency of the filtration fiber layer is 0.06 ≤ gew.o9 ≤ 0.2mm (EN ISO 12956), which means that the surface pore diameter of the filtration fiber layer FIL105 is 0.06mm to 0.2mm in diameter according to the European Union international standard EN ISO 12956. The CBR puncture resistance bearing capacity is at least 1.2 kN, the perpendicular water permeability is 130L/sm (EN ISO 11058), meaning the filter fiber layer FIL105 water permeability is 130 litres of water per second for 1 square meter FIL 105.

The lower side surface of the filtering fiber layer is fully adhered and bonded with the solid water drainage and storage layer 4 through spray glue spraying. The filtration fiber layer FIL105 has high water permeability, functions as a soil-isolation layer by preventing soil particles from penetrating, is puncture resistant, and serves as a separate drainage and matrix layer in a multi-layer structure.

The soil isolation baffle 6 is vertically arranged and surrounds the edge of the ridging layer 7 of the planting area, and the soil isolation baffle 6 is an aluminum plate and is light in weight of 1 kg-2 kg/lm. A group of loose drain holes 61 are formed in the soil separation baffle 6, the aperture of each loose drain hole is 5-8 mm, and the aperture distance is not larger than 10 mm. The horizontal lapping width of the adjacent soil separation baffle plates is not less than 50mm, and the effect of jointing the separated culture layer and different materials is achieved.

The culture soil layer 7 is sprayed on the upper side of the soil isolation layer 5, and the culture soil layer 7 is formed by mixing planting soil, vermiculite, pine needle soil and fertilizer in proportion. The thickness of the culture soil layer 7 is 80-100 mm, the pore volume percentage is more than 60 vol%, the water volume percentage is more than 35 vol%, the content of water-soluble salt is less than 3.5 kg/m, the content of organic substances is less than 65 kg/m, the pH value is 6.0-8.5, and the weight is 1140 kg/m to 1540 kg/m during thin film labor.

The plant layer 8 comprises herbaceous plant seeds and Crassulaceae plant seedlings, and the plant layer 8 is planted in the ridging layer 7. The herbaceous plant seeds at least comprise 30 plant seeds, and the Crassulaceae plant seedlings comprise at least 4-5 seeds.

The sidewalk area is positioned between the soil separation baffle plates 6 of the planting areas on the upper side and the two sides of the roof structure layer 1. The sidewalk area comprises a waterproof heat-insulating layer 2, a protective isolation layer 3, a double-layer PE film sliding layer 9, a drainage plate 10, a gravel mixture layer 11 and a pavement board layer 12 which are sequentially compounded on the upper side surface of a roof structure layer 1 from bottom to top.

The double-layer PE film sliding layer 9 is laid on the upper side of the protective isolation layer 3, and two ends of the double-layer PE film sliding layer extend towards the planting area.

The drainage plate 10 is laid on the upper side of the double-layer PE film sliding layer 9, the drainage plate is FKD 10 and is made of a high-density polyethylene regenerated material, and the drainage plate is a polypropylene PP filtering layer which is about 10mm thick and 750 grams of square meter weight. Prevent the water retention of the roof, prevent the loose material on the upper part from sliding and resist frost cracking and freezing. Two adjacent drain bars are directly butted, and when the surface layer is a pavement brick, the surface layer is generally used for ensuring the bearing capacity of the pavement brick.

The gravel mixture layer 11 is paved on the upper side of the drainage plate 10, the thickness of the gravel mixture layer is 30mm-50mm, the gravel mixture comprises gravel with different grain diameters, and the grain diameter range of the gravel is 4mm-8 mm.

The pavement slab layer 12 is formed by paving unit pavement slabs on the gravel mixture layer 11, and the gap between every two adjacent slab unit pavement slabs is not more than 10 mm.

Referring to fig. 4, the floor drain area is arranged on the sidewalk area, a floor drain space 13 which is cut off from small to large in a stepped manner is formed on the roof structure layer 1 of the floor drain area from bottom to top, transition layers 14 which are matched with the shape of the roof structure layer 1 and connected with the roof structure layer 1 are arranged on four sides of the floor drain space, and the middle of the floor drain space is communicated up and down.

The upside surface of the limit portion of transition layer 14 and the upside surface parallel and level of roofing structural layer 1, the upside surface of transition layer 14 slopes down gradually from limit portion to center, and the upside surface of transition layer 14 is connected with including extending to the ground drain region by the pavement district and by lower supreme compound waterproof insulation layer 2 in proper order, protection isolation layer 3, double-deck PE membrane sliding layer 9 and drain bar 10.

The drainage well cover unit is used for preventing sundries and base materials from entering the floor drain and has a walking function. The drainage well cover unit comprises a cover plate base and a steel cover plate. The extension end of the drainage plate 10 is shorter than the lower side structure, the cover plate base 15 is arranged on the upper side of the drainage plate 10 on two sides of the floor drain area in a falling mode, the cover plate base 15 is in lap joint with the drainage plates 10 on the periphery, and the lap joint width is not smaller than 50 mm. The side elevation of the cover plate base 15 is provided with water seepage gaps 16 for water to flow in conveniently. The outer side of the side vertical surface water seepage gap 16 is coated with a filter screen to prevent impurities from entering. The upper side of the cover plate base 15 is horizontally provided with a steel cover plate 17, four corners of the steel cover plate 17 are provided with nuts with adjustable height and flatness, and the peripheries of the cover plate base 15 and the steel cover plate 17 are tightly propped against the broken stone mixture layer 11 in the sidewalk area.

The height of well lid is 100mm, can superpose the setting. Length × width =370mm × 370 mm. Bottom length × width =470mm × 470mm, drain well diameter =300 mm. Drainage well cover weight =150 kg. The well lid can be opened, is equipped with 3mm wash port, and the well lid lateral wall has 3mm drainage seam, is equipped with 8 outlet in addition. The material is ABS recyclable material and is UV resistant.

Referring to fig. 1-3, the construction method of the floor drain node structure of the accessible greening roof comprises the following construction steps:

step one, a roof structure layer 1 is constructed.

And step two, constructing a waterproof heat-insulating layer 2.

Step three, cleaning and acceptance inspection of the waterproof insulating layer 2:

a broom is adopted to clean dirt and dust on the waterproof heat-insulating layer 2, so that drying is guaranteed without impurities;

whether inspection waterproof insulation layer 2 satisfies planting roofing requirement, whether the bonding of inspection waterproof insulation layer 2 lap joint is firm, whether sealed tight, whether the coiled material direction of laying is correct, whether 18 position waterproof constructions of inspection flashing, movement joint and roofing bulge structure accord with design and standard requirement, do the experimental qualified back of retaining at last and can carry out subsequent handling.

And step four, releasing area control points of a planting area, a sidewalk area, a floor drain area and a plant root blocking area on the wall surface of the daughter according to the structure contour line and the roof layout drawing.

And fifthly, constructing and laying the protective isolation layers 3 in the same laying direction as the waterproof heat-insulating layer 2, wherein the longitudinal and transverse lap joint width between the adjacent protective isolation layers 3 is not less than 100mm, and the protective isolation layers are turned over by 100mm at least when meeting the roof protruding structure 18.

And step six, constructing the solid water drainage and storage layer 4, laying the solid water drainage and storage layer to a sidewalk area, cutting off the solid water drainage and storage layer, keeping the periphery of the solid water drainage and storage layer from turning upwards, adopting a butt joint mode in a lap joint mode, cutting and butting the solid water drainage and storage layer when encountering a convex structure 18 of a roof, and avoiding turning upwards.

And seventhly, constructing a soil isolation layer 5, firstly paving from one end of the periphery of the solid water drainage and storage layer 4, spraying the inner lower side surface with spray glue, then fully adhering and bonding the inner lower side surface with the solid water drainage and storage layer 4, wherein the lap joint width of adjacent filter fiber layers is not less than 100mm, and at least turning up 150mm when encountering the roof protruding structure 18.

And step eight, constructing the soil isolation baffles 6, enclosing the soil isolation baffles 6 around the planting area, wherein the horizontal lap joint width of the soil isolation baffles 6 is not less than 50mm, and the vertical lap joint width is not less than 100mm when meeting the yin-yang corner parts.

Step nine, spraying and hilling: after the preparation of the hilling material by a manufacturer is finished, the hilling material is put into a storage tank and directly transported to the site, then the hilling material is directly pumped to a roof greening area by a pump pipe to be sprayed,

the conveying principle of the hilling tank truck is mainly that the hilling material enters a pumping pipeline through a hopper and is conveyed to a designed position by compressing air inside the tank truck. The pot material for storing the hilling is mainly aluminum alloy composite material, and the wall thickness is usually 5 mm. The upper part of the tank truck is evenly provided with 3-4 charging openings, and the diameter of the charging openings is 450 mm. The tank is pressurized to a maximum of 2 pa under the action of a compressed air system. The discharge time of a 27 ton full tank truck is around 1 hour by pressure. For more convenient unloading, the end of the tank body is provided with a hydraulic jack, the tank body is lifted, the horizontal included angle is 45 degrees, so that materials can freely fall into a hopper below to enter a pipeline, and the diameter of the conveying pipeline is generally selected from four models, namely DN80, DN100, DN150 and DN 200. The pumping height can reach about 100m,

the spraying head part is provided with a manual control cover plate for preventing the hilling from being freely sprayed, an operator wears a safety tool, the manual control cover plate supports the pipe head with one hand, the pipe head is bent downwards, the hilling material is sprayed out at an angle of 45 degrees to the horizontal plane, and the spraying radius is controlled within a range of 1.5 m;

spray from inside to outside, evenly spray to all around by well, it sprays thickness and uses the baffle 6 height that separates soil as the control point, is less than the baffle 6 high 3mm-5mm scope that separates soil, spreads gently with the rake to the position of spraying the inhomogeneous thickness and pushes away hilling, reaches thickness evenly.

Step ten, planting grass seeds:

herbaceous plant seed: the seed sowing time is 4-6 months, the seed sowing adopts manual sowing, and the sowing density is 1200 grains/square meter;

crassulaceae plant seedling: paying off according to the plant seedling distribution area to determine the position, digging a circular groove with the diameter of 100mm and the depth of 50-70 mm by using a small shovel, planting the culture soil for culturing the plant seedling and the plant seedling together, and compacting peripheral soil in the peripheral gap.

The grass seeds are selected from plants belonging to Crassulaceae and having drought resistance and low maintenance, and the sowing time is 4-6 months, so that the best vegetation coverage rate can be obtained in 9-10 months. A coverage of about 60-80% after one year. Because the drought-resistant and low-maintenance plants are selected, irrigation is not needed after hand spreading is finished, and the problem of plant maintenance can be solved only by natural precipitation.

Referring to fig. 1 and 4, the construction method further includes the following steps after the fifth step:

step a, according to the soil separation baffles 6 on two sides of the control line construction pedestrian road area, the soil separation baffles 6 are directly placed on the protective isolation layer 3.

And b, paving the double-layer PE film sliding layers 9, wherein the longitudinal and transverse lap joints of the adjacent double-layer PE film sliding layers 9 are all at least 80mm, and upturning is not needed.

And c, paving the drainage plates 10, wherein the adjacent drainage plates 10 do not need to be lapped.

And d, spreading a crushed stone mixture layer 11 on the drainage plate 10.

Step e, paving a road slab: when the unit road slab is laid, firstly, the elevation of two ends is controlled, the line is pulled through, and then the elevation is controlled by vertically striking the road slab by using rubber;

and f, reserving a floor drain space at a preset floor drain area on the sidewalk area, and constructing a transition layer 14.

And g, the waterproof heat-insulating layer 2, the protective isolation layer 3, the double-layer PE film sliding layer 9 and the drainage plate 10 in the sidewalk area all extend into the floor drain space, a cover plate base 15 is arranged on the upper side of the drainage plate 10, and a steel cover plate 17 is arranged on the cover plate base 15 to form a drainage well cover unit, so that the periphery of the drainage well cover unit is tightly propped against the broken stone mixture layer 11 in the sidewalk area.

Claims (9)

1. The utility model provides a people's afforestation roofing floor drain node structure which characterized in that: comprises a roof structure layer (1), a waterproof heat-insulating layer (2), a protective isolation layer (3), a solid water drainage and storage layer (4), a soil isolation layer (5), a soil isolation baffle plate (6), a soil culture layer (7), a plant layer (8), a sidewalk area and a floor drain area which are sequentially compounded on the upper side surface of the roof structure layer (1) from bottom to top in a planting area of the roof structure layer (1),

the waterproof heat-insulating layer (2) is a root puncture resistant waterproof heat-insulating layer,

the protective isolation layer (3) is laid on the upper side of the waterproof heat-insulating layer (2) in the same direction as the waterproof heat-insulating layer (2),

the solid drainage and storage layer (4) is laid on the upper side of the protective isolation layer (3), the solid drainage and storage layer (4) comprises a plate body, a water storage tank (41) is uniformly and inwards formed on the upper side of the plate body downwards, a ledge (42) is formed on the periphery of the water storage tank (41) relative to the water storage tank, a drain hole (43) is formed in the ledge (42), protrusions (44) are formed upwards at the positions of four corners of the water storage tank, a drainage groove (45) is formed below the ledge (42),

the soil isolation layer (5) is a filtering fiber layer, the lower side surface of the filtering fiber layer is fully adhered and bonded with the solid water drainage and storage layer (4) through spraying glue,

the soil-isolating baffle plate (6) is vertically arranged and enclosed at the edge of a culture soil layer (7) of the planting area, a group of loose drain holes (61) are arranged on the soil-isolating baffle plate (6),

the culture soil layer (7) is sprayed on the upper side of the soil isolation layer (5),

the plant layer (8) comprises Crassulaceae plant seedlings, the plant layer (8) is planted in the culture soil layer (7),

the sidewalk area is positioned between soil-separating baffles (6) of the upper side and two side planting areas of the roof structure layer (1), the sidewalk area comprises a waterproof heat-insulating layer (2), a protective isolation layer (3), a double-layer PE film sliding layer (9), a drainage plate (10), a broken stone mixture layer (11) and a pavement slab layer (12) which are sequentially compounded on the upper side surface of the roof structure layer (1) from bottom to top,

the floor drain area is arranged on the sidewalk area, a floor drain space (13) which is broken from small to large in a ladder way is formed on the roof structure layer (1) of the floor drain area from bottom to top, transition layers (14) which are matched with the shape of the roof structure layer (1) and connected with the roof structure layer are arranged on four sides of the floor drain space, the middle part of the floor drain space is communicated up and down,

the upper side surface of the edge part of the transition layer (14) is flush with the upper side surface of the roof structure layer (1), the upper side surface of the transition layer (14) is gradually inclined downwards from the edge part to the center, the upper side surface of the transition layer (14) is connected with a waterproof heat-insulating layer (2), a protective isolation layer (3), a double-layer PE film sliding layer (9) and a drainage plate (10) which extend from a sidewalk area to a floor drain area and are sequentially compounded from bottom to top,

the extension end of drain bar (10) is in downside structure, and drain bar (10) upside of floor drain district both sides has fallen and has been put apron base (15), apron base (15) and drain bar (10) overlap joint all around, and the side facade of apron base (15) is equipped with infiltration space (16), and the outside cladding that the side facade infiltrated space (16) has the filter screen, but apron base (15) upside tie has steel apron (17), and the four corners of steel apron (17) have the nut of height-adjusting and roughness, all around apron base (15) and steel apron (17) unit all with pavement district's rubble mixture layer (11) top tightly.

2. The accessible afforestation roofing floor drain node configuration of claim 1, its characterized in that: the solid water drainage layer (4) is made of polyethylene regenerated material.

3. The accessible afforestation roofing floor drain node configuration of claim 1, its characterized in that: the protective isolation layer (3) is an acrylic acid recycling fiber layer.

4. The accessible afforestation roofing floor drain node configuration of claim 1, its characterized in that: the filter fiber layer is a polypropylene layer with a surface pore diameter of 0.06-0.2 mm, a puncture resistance bearing capacity of at least 1.2 kN and a vertical water permeability of at least 130L/sm.

5. The accessible afforestation roofing floor drain node configuration of claim 1, its characterized in that: the soil isolation baffle (6) is an aluminum plate, the aperture of the loose drain hole is 5-8 mm, and the aperture distance is not more than 10 mm.

6. The accessible afforestation roofing floor drain node configuration of claim 1, its characterized in that: the thickness of the culture soil layer (7) is 80-100 mm, the pH value is 6.0-8.5, and the weight is 1140 kg/m for carrying out double-row high-speed cultivation and 1540 kg/m for carrying out double-row high-speed cultivation.

7. The accessible afforestation roofing floor drain node configuration of claim 1, its characterized in that: double-deck PE membrane sliding layer (9) are laid in the upside of protection isolation layer (3), and both ends extend towards planting the district, drain bar (10) are laid at double-deck PE membrane sliding layer (9) upside, are made by polyethylene recycled material.

8. The accessible afforestation roofing floor drain node configuration of claim 1, its characterized in that: the gravel mixture layer (11) is paved on the upper side of the drainage plate (10), the thickness of the gravel mixture layer is 30-50 mm, the gravel mixture comprises gravel with different grain diameters, and the grain diameter range of the gravel is 4-8 mm.

9. The accessible afforestation roofing floor drain node configuration of claim 1, its characterized in that: the pavement slab layer (12) is formed by paving unit pavement slabs on the gravel mixture layer (11), and the gap between every two adjacent slab unit pavement slabs is not more than 10 mm.

Images