IP01: Permeable befæstelser

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Inger Kristensen
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IP01: Permeable befæstelser Senior consultant /PhD-fellow Jan Støvring jls@ign.ku.

MJK Elektronik, Rambøll, Midtgaard Granit og Betonvarer, NORRECCO, Nyrup Plast, HOFOR, Københavns

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 Research questions Is permeable pavements efficient in terms of capturing storm water runoff volume and peak flow in a Danish context? What is the capacity of capturing storm water runoff volume To what extend can peak flow be reduced? What is the carrying capacity? What is the lifespan and means of maintenance to prolong the effectiveness of the pavement? To what extend is the reservoir in the base course fully used? Dias 2

3 Tests at Svanemøllehallen Stall 3 Stall 2 Dias 3 Stall

7 Tests at Svanemøllehallen

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

9 Experimental stalls crushed aggregates 2-5 crushed aggregates crushed aggregates Crushed recycled concrete 4-32 Drænstabil Dias 9

10 Accumulated storm water infiltrated in each stall November 2013 Dias 10

11 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 11

12 Flow by storm event Stall 1-5 November 27th-28 th 2013 Delayed response when rain after dry period Dias 12

13 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 13

14 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 14

15 Beckers apparatus Surface infiltration tests SRIT-method Different methods have been used CONSRITmethod ASTMmethod Dias 15

16 intensity (µm/s) IGN 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 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

17 difference august'13-maj'14 (mm) IGN Carrying capacity 6 Section profile measurement on pavement surface modullinje B testfelt 1 testfelt 2 testfelt 3 testfelt 4 testfelt 5 testfelt Modul line measurement every 10 cm Dias 17

18 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 18

19 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 19

20 intensitet (µm/s) 900 Infiltration tests Lendemosevej, Lions Park Søllerød Helenevej, Frederiksberg VandCentre Syd, Odense Stilholmsvej, Birkerød lokalitet DANVA, Skanderborg Bellinge, Odense Cargovej, Billund

21 intensitet (µm/s) IGN 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 21 Helenevej, Frederiksberg VandCentre Syd, Odense Stilholmsvej, Birkerød DANVA, Skanderborg lokalitet

22 Time before cleaning (tt:mm:ss) Infiltrationsev nen, before cleaning (mm/t) Tid, after cleaning (tt:mm:ss) Infiltrations rate after (mm/t) Improvement (%) Lendemosevej, Lions Park Søllerød 00:01: ,8 00:00: ,5 216% Helenevej, Frederiksberg 00:25:09 543,7 00:01: ,7 2262% VandCentre Syd, Odense 00:11:30 547,7 00:01: ,8 728% Stilholmsvej, Birkerød 00:02: ,8 00:01: ,6 203% DANVA, Skanderborg 01:05:15 22,2 00:01: , %

23 Infiltrationsevne (µm/s) IGN Resultat fra infiltrationstest sammenlignet med dimensioneringsgivende regnhændelser Lendemosevej, Lions Park Søllerød Helenevej, Frederiksberg Stilholmsvej, Birkerød VandCentre Syd, Odense DANVA, Skanderborg Cargovej, Billund Bellinge, Odense 100-årshændelse 10-årshændelse 5-årshændelse time (min) Dias 23

24 Dias 24 IGN

25 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 25

26 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 26

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www.vandibyer.dk IP01: Permeable befæstelser

www.vandibyer.dk 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,