IP01: Permeable befæstelser

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Anna Kjærgaard
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1 IP01: Permeable befæstelser Senior consultant /PhD-fellow Jan Støvring Landscape architecture and Planning Project partners: IBF, NCC, BYGGROS, Stenrand Grusgrav, MJK Elektronik, Rambøll, Midtgaard Granit og Betonvarer, NORRECCO, Nyrup Plast, HOFOR, Københavns Kommune, Others; Teknologisk Institut Test Centre at Svanemøllehallen supported by Hofor and project partners Dias 1

2 Tests at Svanemøllehallen Stall 3 Stall 2 Dias 2 Stall

5 Tests at Svanemøllehallen Monitoring well Each stall 5 x 5 meter all runoff is directed in to the monitoring well

6 Experimental stalls crushed aggregates 2-5 crushed aggregates crushed aggregates Crushed recycled concrete 4-32 Drænstabil Dias 6

7 Accumulated storm water infiltrated in each stall November 2013 Dias 7

8 Accumulated storm water infiltrated in each stall Testfelt September 2013 Nedbør (L) Nedbør gennem testfelt (L) Difference (L) Afvigelse (%) 8 % -10 % -12 % -4 % 6 % - November 2013 Nedbør (L) Nedbør gennem testfelt (L) Difference (L) Afvigelse (%) -9 % -18 % -21 % -16 % - 15 % - December 2013 Nedbør (L) Nedbør gennem testfelt (L) Difference (L) Afvigelse (%) 10 % 1 % 0 % 6 % 4 % - Januar 2014 Nedbør (L) Nedbør gennem testfelt (L) Difference (L) Afvigelse (%) 10 % 2 % 1 % 8 % 8 % - Dias 8

9 Flow by storm event Stall 1-5 November 27th-28 th 2013 Delayed response when rain after dry period Dias 9

10 Flow by storm event Stall 1-5 September 15 th 2013 Large vol. by pervious pavers, will probably be smaller today(?) Small vol. by RCA Dias 10

11 Peak reduction testfelt start (time) slut (time) peak(tid) peak (flow L/10min) peak forskydning (timer:minutter) peak reduktion (Vol) Rain event : :50 30, : : :30 14,036 03:40:00 54% : : :10 18,652 03:20:00 39% : : :20 9,326 03:30:00 70% : : :40 4,522 03:50:00 85% : : :10 19,028 03:20:00 38% Dias 11

12 Surface infiltration tests after 4 Month after 12 Month after 18 Month % reduction Stall Stall Stall Stall Stall Stall Same toplayer but different base course intensity(µm/s) after 4 mdr. after 12 mdr. after 18 mdr testfelt 1 testfelt 2 testfelt 3 testfelt 4 testfelt 5 testfelt 6 Cloudburst >15mm/30 min Same toplayer but different base course

13 Other observations October 14: 90% of joints in stall 6 have weed only 10% in stall 1 has (Same surface). More refilling/maintenance in stall 6 than 1 January 14: When thaw less water on surface by PP Dias 13

14 Infiltration tests on permeable paving's elsewhere SF-Rima, Lendemosevej 2013 Pavers, Bellinge, 2014 SF Rima, Helenevej, 2014 Permeable Asphalt, Billund, 2012 PICP, VandCenter Syd, 2012 PICP, DANVA, 2011 Granite slaps, Stiholmvej, Birkerød, 2012 Dias 14

15 intensitet (µm/s) Infiltration rate after simulated cleaning Time (tt:mm:ss) Infiltration rate (mm/t) Infiltration rate (µm/s) Lendemosevej, Lions Park Søllerød 00:02: Helenevej, Frederiksberg 00:21: VandCentre Syd, Odense 00:12: Stilholmsvej, Birkerød 00:02: DANVA, Skanderborg 00:55: Bellinge, Odense 00:01: Cargovej, Billund 01:02: årshændelse 100-årshændelse før oprens efter oprens Lendemosevej, Lions Park Søllerød Dias 15 Helenevej, Frederiksberg VandCentre Syd, Odense Stilholmsvej, Birkerød DANVA, Skanderborg lokalitet

16 Resultat fra infiltrationstest sammenlignet med dimensioneringsgivende regnhændelser Lendemosevej, Lions Park Søllerød Helenevej, Frederiksberg Infiltrationsevne (µm/s) Stilholmsvej, Birkerød VandCentre Syd, Odense DANVA, Skanderborg Cargovej, Billund Bellinge, Odense 100-årshændelse 10-årshændelse 5-årshændelse time (min) Dias 16

17 Dias 17 IGN

18 Helenevej, cloudburst 31.august-1. sep between kl. 21:34 og 03:38 falder der 70 mm nedbør (SVK Landbohøjskolen) dome of visions 2. sep 2014 Dias 18

19 Helenevej, cloudburst 31.august-1. sep start finish duration Massemidtpunkt(tid) Highest waterlevel (mm) regnhændelse : : :40 Intensity (30min) 01: : :30 section A 01: : :42 03:00 77 section B 02: : :44 03: section C 02: : :56 03:14 41 section D 01: : :54 03:08 27 Dias 19

20 25. Marts 2014

21 sewer Crosscutting ditch for 27. Marts 2014

22 Aprox. 30cm of clay with humus Moraine clay 27. Marts 2014

23 Råjordsplanum etape E 8% 0% 2% sand(sa) forklaring (SA) 24% grus(gr) 29% 4% moræneler(ml) moræneler med muld(mm) betonstøbning omking kantsten tværgående membran 33% brønde til fjernvarme Dias 23

24 Volume and water storage capacity of sandy (constructed) layers (SA og GR) diameter [m] radius [m] length porosity Volume [m3] Volume [l] Vol (district heating pipe) 0,125 0, , , pipes in total 883,125 area [m2] depth [m] porosity Volume [m3] Volume of area around district heating pipe 38,4 0,375 0,3 4, ,875 diameter [m] radius [m] length porosity Volume [m3] Volume [l] Volume of sewer pipe 0,1 0, , ,6 area [m2] depth [m] porosity Volume [m3] Volume of area around sewer pipe 11,9 0,8 0,3 2, ,4 Volume of sand pocket (estimate) area [m2] depth [m] porosity Volume [m3] Volume [l] 0,8 0,5 0,3 0, grus alle area [m2] depth [m] porosity Volume [m3] Volume [l] 8,4 0,2 0,3 0, Total volume [l] 6634,275 Dias 24

25 First scenario: Homogenous clay till V(water)=Ksat*Area [m3/d] Total area [m 2 ] Ksat (m/s] Ksat [m/d] 198,2 0, , ,12448 liter/day 17124,48 Second scenario: Hetergeonous Area sediment type [m 2 ] Ksat [m/s] Ksat [m/d] sand 54,7 5,72429E-05 4, clay till 65,7 7,74949E-06 0, mull clay 58,1 7,90212E-06 0, betonstøbning omking kantsten 16,4 0 0 brønde til fjernvarme 3, ,2 0 V(water)=Ksat*Area [m3/d] liter/day 354, ,9104 Difference between two scenarios [m3/d] 337, in liter/day ,4 Largest accumulated water volume (Q) for a 5 year rain event mm l/m2 for etape 1 23,8 23,8 4717,16 Dias 25

26 M Marts 2014

27 M17 M15 M18 M16 3. April 2014

28 M15 M15 Falling head 0,005 = 5,0 x 10-5 m/s M16 Constant head 0,0016 = 1,6 x 10-5 m/s M17 Constant head 0,0005 = 5,0 x 10-6 m/s 3. April 2014

31,2 3 1195 29,9 1218 4 1115 44,6 No 7,8,9

1489 23,7 9 1647 20 1520 10 1445 26,6 11

29 No troxler 1,2,3,4,5,6 No Density kg/m3 Moisture % ,7 Average Kg/m , , ,6 No 7,8, , , , , , , No 10,11, April 2014

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IP01: Permeable befæstelser

IP01: Permeable befæstelser Senior consultant /PhD-fellow Jan Støvring jls@ign.ku.dk Landscape architecture and Planning Project partners: IBF, NCC, BYGGROS, Stenrand Grusgrav, MJK Elektronik, Rambøll,