Prevention of flooding of streets in Shanghai

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Prevention of flooding of public road Lingang in Shanghai With 23 million inhabitants Shanghai is the largest city in China. Shanghai has a humid subtropical climate. From mid-June to end-July it is the rainy season; heavy rain showers are quite common in this period. The project is a road in Shanghai Lingang, with a length of 950 metres and 30 metres wide. As the road metalling area is extensive and the paving alongside the road is situated on both sides, some other ‘sponge measures’ do not meet the installation requirements. Therefore a choice has been made for the rainwater infiltration solution with Hydrorock; in this project the best choice for collecting rainwater on the road.

Next project

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

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