Rainwater infiltration Xiamen public green area, Haicang District China

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int(315) ["Content img-height"]=> int(420) ["content-img"]=> string(98) "https://www.hydrorock.com/wp-content/uploads//2019/06/Xiamen-City-After-construction-3-315x420.jpg" ["content-img-width"]=> int(315) ["content-img-height"]=> int(420) ["actueel-size"]=> string(98) "https://www.hydrorock.com/wp-content/uploads//2019/06/Xiamen-City-After-construction-3-600x420.jpg" ["actueel-size-width"]=> int(600) ["actueel-size-height"]=> int(420) ["project-slider"]=> string(98) "https://www.hydrorock.com/wp-content/uploads//2019/06/Xiamen-City-After-construction-3-600x340.jpg" ["project-slider-width"]=> int(600) ["project-slider-height"]=> int(340) ["headerslider"]=> string(98) "https://www.hydrorock.com/wp-content/uploads//2019/06/Xiamen-City-After-construction-3-600x800.jpg" ["headerslider-width"]=> int(600) ["headerslider-height"]=> int(800) } } }

Ecologically responsible rainwater infiltration of Xiamen green area in China This infiltration pilot project took place in Xiamen, district Haicang; a tourist town on the coast with 3.5 million inhabitants. The town has very strict regulations regarding the management and maintenance of green areas such as greenbelts alongside roads, city gardens and other green areas. There is a considerable challenge with regard to the health and ability of plant borders and trees to withstand wind and environmental influences in this subtropical climate. The soil type in this area is primarily loam, a soil type with a very slow penetration speed. Therefore the drainage speed is also very slow; Hydrorock infiltration blocks are the desired solution. The Hydrorock pilot project took place over a length of 100 metres and a width of 38 metres.

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Type	Max. load per kg/m2	Volume in liters	Dimensions (lxbxh)	Contact surface m²	Weight in Kg
D34	2500	34 L	120x15x20	0,9 m²	2,7 kg
LG34 RVS*	2500	34 L	120x15x20	0,9 m²	3,7 kg
LG34 GZ*	2500	34 L	120x15x20	0,9 m²	3,7 kg
LG34 VS*	2500	34 L	120x15x20	0,9 m²	3,7 kg

Type	Max. load per kg/m2	Volume in liters	Dimensions (lxbxh)	Contact surface m²	Weight in Kg
BD112	2500	112 L	120x30x33	1,71 m²	9 kg
BD170	2500	170 L	120x30x50	2,22 m²	13,5 kg
BD220	2500	220 L	120x40x50	2,56 m²	15,5 kg
BD340	2500	220 L	120x30x100	3,72 m²	27 kg
BD440	2500	440 L	120x40x100	4,16 m²	35 kg
BD216HD	4500	216 L	120x40x50	2,56 m²	29 kg

Type	Max. load per kg/m2	Volume in liters	Dimensions (lxbxh)	Contact surface m²	Weight in Kg
D34	2500	34 L	120x15x20	0,9 m²	2,7 kg
LG34 RVS*	2500	34 L	120x15x20	0,9 m²	3,7 kg
LG34 GZ*	2500	34 L	120x15x20	0,9 m²	3,7 kg
LG34 VS*	2500	34 L	120x15x20	0,9 m²	3,7 kg
D45	2500	45 L	120x20x20	1,04 m²	3,6 kg
D56	2500	56 L	120x20x25	1,18 m²	4,5 kg
D112	2500	112 L	120x30x33	1,71 m²	9 kg
D170	2500	170 L	120x30x50	2,22 m²	13,5 kg
D220	2500	220 L	120x40x50	2,56 m²	15,5 kg
D340	2500	220 L	120x30x100	3,72 m²	27 kg
D440	2500	440 L	120x40x100	4,16 m²	35 kg
D43HD	4500	43 L	120x20x20	1,04 m²	5,8 kg
D216HD	4500	216 L	120x40x50	2,56 m²	29 kg

Type	Infiltration capacity	Dimensions (lxwxh)	Weight	Construction depth	Max. load per m2
BD112	112 liter	120x30x33 cm	9 kg	63 cm	2500
Type	BD112
Infiltration capacity	112 liter
Dimensions (lxwxh)	120x30x33 cm
Weight	9 kg
Construction depth	63 cm
Max. load per m2	2500
Quantity of precipitation mm per m²
Required number
Total Buffer
BD170	170 liter	120x30x50 cm	13.5 kg	80 cm	2500
Type	BD170
Infiltration capacity	170 liter
Dimensions (lxwxh)	120x30x50 cm
Weight	13.5 kg
Construction depth	80 cm
Max. load per m2	2500
Quantity of precipitation mm per m²
Required number
Total Buffer
BD220	220 liter	120x40x50 cm	15.5 kg	90 cm	2500
Type	BD220
Infiltration capacity	220 liter
Dimensions (lxwxh)	120x40x50 cm
Weight	15.5 kg
Construction depth	90 cm
Max. load per m2	2500
Quantity of precipitation mm per m²
Required number
Total Buffer
BD340	340 liter	120x30x100 cm	27 kg	130 cm	2500
Type	BD340
Infiltration capacity	340 liter
Dimensions (lxwxh)	120x30x100 cm
Weight	27 kg
Construction depth	130 cm
Max. load per m2	2500
Quantity of precipitation mm per m²
Required number
Total Buffer
BD440	440 liter	120x40x100 cm	35 kg	140 cm	2500
Type	BD440
Infiltration capacity	440 liter
Dimensions (lxwxh)	120x40x100 cm
Weight	35 kg
Construction depth	140 cm
Max. load per m2	2500
Quantity of precipitation mm per m²
Required number
Total Buffer
D34	34 liter	120x15x20 cm	2.7 kg	35 cm	2500
Type	D34
Infiltration capacity	34 liter
Dimensions (lxwxh)	120x15x20 cm
Weight	2.7 kg
Construction depth	35 cm
Max. load per m2	2500
Quantity of precipitation mm per m²
Required number
Total Buffer
D45	45 liter	120x20x20 cm	3.6 kg	40 cm	2500
Type	D45
Infiltration capacity	45 liter
Dimensions (lxwxh)	120x20x20 cm
Weight	3.6 kg
Construction depth	40 cm
Max. load per m2	2500
Quantity of precipitation mm per m²
Required number
Total Buffer
D112	112 liter	120x30x33 cm	9 kg	63 cm	2500
Type	D112
Infiltration capacity	112 liter
Dimensions (lxwxh)	120x30x33 cm
Weight	9 kg
Construction depth	63 cm
Max. load per m2	2500
Quantity of precipitation mm per m²
Required number
Total Buffer
D170	170 liter	120x30x50 cm	13.5 kg	80 cm	2500
Type	D170
Infiltration capacity	170 liter
Dimensions (lxwxh)	120x30x50 cm
Weight	13.5 kg
Construction depth	80 cm
Max. load per m2	2500
Quantity of precipitation mm per m²
Required number
Total Buffer
D220	220 liter	120x40x50 cm	15.5 kg	90 cm	2500
Type	D220
Infiltration capacity	220 liter
Dimensions (lxwxh)	120x40x50 cm
Weight	15.5 kg
Construction depth	90 cm
Max. load per m2	2500
Quantity of precipitation mm per m²
Required number
Total Buffer
D340	340 liter	120x30x100 cm	27 kg	130 cm	2500
Type	D340
Infiltration capacity	340 liter
Dimensions (lxwxh)	120x30x100 cm
Weight	27 kg
Construction depth	130 cm
Max. load per m2	2500
Quantity of precipitation mm per m²
Required number
Total Buffer
D440	440 liter	120x40x100 cm	35 kg	140 cm	2500
Type	D440
Infiltration capacity	440 liter
Dimensions (lxwxh)	120x40x100 cm
Weight	35 kg
Construction depth	140 cm
Max. load per m2	2500
Quantity of precipitation mm per m²
Required number
Total Buffer

Type	Volume in liters	Dimensions (lxbxh)
IP15 RVS*	15 L	25x25x35 cm
IP15 VS*	15 L	25x25x35 cm

Step 1 of 2

Calculate indication for required number of Hydrorock units

Type	Dimensions (lxbxh)
Grate RVS* for D34	120x15x2,5 cm
Grate GZ* for D34	120x15x2,5 cm
Bracket RVS* for grate	8x15x2,5 cm
Grate VS* for D34	120x15x2,5 cm
Bracket VS* for grate	8x15x2,5 cm
Filter for D34	119×14,5×0,25 cm
Filter for IP15/IP20 infiltration drain	19x19x0,25 cm

Type	Dimensions (lxbxh)
Sand trap with leaf separator	Ø 200, 1x intake and 1x outlet: Ø100
Idem; as surface water drain with SS* grate	As above, dimensions grate 25x25x10 cm
Idem; as surface water drain met GS* grate	As above, dimensions grate 25x25x10 cm
Sand trap/surface water drain with leaf separator	Ø 315, 1x intake: Ø125 and 2x outlet: Ø100
Filterbag geotextile small	For use with sand trap Ø 200
Filterbag geotextile big	For use with sand trap Ø 315

Type	Dimensions (lxbxh)
Fitting BD blok	11 cm
Perforated tube Ø100	per m²

Type	Dimensions (lxbxh)
Easy Gravel	33×65 cm

Rainwater infiltration Xiamen public green area, Haicang District China

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