Permeable paving structure for sustainable mitigation of urban heat island effect
A technology of urban heat island effect and pavement, which is applied in the direction of on-site paved concrete pavement, pavement details, climate change adaptation, etc., can solve the problems that cannot be achieved, improve the urban ecological environment, etc. The effect of ecological protection
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Embodiment 1
[0026] A permeable pavement structure that can sustainably alleviate the urban heat island effect, such as figure 1 As shown, it consists of a permeable surface layer 1, a leveling sand layer 2, a permeable geotextile 3, a composite structure layer 8 and a bottom aquifer 7 arranged from top to bottom. The permeable surface layer 1 is paved with clay bricks with good water absorption and high strength, with a height of 80mm; the leveling sand layer 2 is paved with coarse sand with a particle size range of 0.5-1.0mm, and the thickness is about 25mm; the permeable geotextile 3 is paved with good hydrophilicity modified polyester; the composite structure layer 8 has a height of 300 mm and is composed of graded gravel 4 with a nominal maximum particle size of 26.5 mm and a series of capillary columns 5 vertically dispersed therein, such as figure 2 As shown, the capillary column 5 connects the upper permeable geotextile 3 and the water storage layer 7 at the bottom of the permeabl...
Embodiment 2
[0031] A permeable pavement structure suitable for sidewalks that can sustainably alleviate the urban heat island effect, consisting of a permeable surface layer 1, a leveling sand layer 2, a permeable geotextile 3, a composite structure layer 8 and a bottom aquifer 7 arranged from top to bottom . The permeable surface layer 1 is paved with concrete bricks with good water absorption and high strength, with a height of 60 mm; the leveling sand layer 2 is paved with coarse sand with a particle size of 0.5 mm, and the thickness is 20 mm; the permeable geotextile 3 is modified with good hydrophilicity Polyester; the composite structure layer 8 has a height of 250mm, and is composed of graded gravel 4 with a nominal maximum particle size of 19.0mm and a series of capillary columns 5 vertically dispersed in it. The capillary columns 5 connect the upper permeable geotextile 3 and the permeable The water storage layer 7 at the bottom of the pavement structure, the capillary column 5 i...
Embodiment 3
[0033] A permeable pavement structure that can sustainably alleviate the urban heat island effect is used for light-duty driveways. It consists of a top-down permeable surface layer 1, a leveling sand layer 2, a permeable geotextile 3, a composite structure layer 8, and a bottom aquifer 7 composition. The permeable surface layer 1 is paved with concrete bricks with good water absorption and high strength, with a height of 80mm; the leveling sand layer 2 is paved with coarse sand with a particle size of 0.5-1.0mm, and the thickness is 30mm; the permeable geotextile 3 is paved with good hydrophilicity Modified polyester; the composite structure layer 8 has a height of 400 mm, and is composed of graded gravel 4 with a nominal maximum particle size of 26.5 mm and a series of capillary columns 5 vertically dispersed in it, and the capillary columns 5 are connected to the upper permeable geotextile 3 And the water storage layer 7 at the bottom of the infiltration pavement structure,...
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