Reference

PE-pumpebygværk sikrer stormflodssystem lang levetid, Denmark

PE-pumpebygværk sikrer stormflodssystem lang levetid

Stormflod og oversvømmelser er et tilbagevendende problem i Jyllinge Nordmark ved Roskilde Fjord. Nyt bygværk af PE-plast sikrer trygheden for områdets beboere de næste 100 år.

Projektfakta

Denmark
Kommunalt byggeri
Regnvand
Færdiggørelse: 2021

Uponors rolle

Uponor WehoPanel bygværk 11x7x5 m

Nyt bygværk af PE-plast sikrer trygheden for områdets beboere de næste 100 år

Når vandstanden stiger og vinden tager til, er landets fjord- og kystnære områder i farezonen for at blive ramt af stormflod. Det ved beboerne til hudløshed i Jyllinge-Nordmark ved Roskilde Fjord, hvor alt for mange har oplevet at stå i vand til livet, når fjorden og områdets åer oversvømmer deres hjem, som det er sket flere gange gennem det sidste årti.

Efter flere års politisk tovtrækning har der siden 2018 været gang i et større stormflodssikringsprojekt, der skal sikre området mod vandmasserne i fremtiden. Blandt forskellige kystsikringsinitiativer er også et nyt pumpeanlæg, hvor pumperne er placeret i et Wehopanelbygværk,  hvis ydre rammer måler 11 x 7 x 5 meter, og som har til formål at kontrollere udledningen af overskudsvand.

 

Lang levetid i saltholdigt miljø

Opførslen af det store kystsikringsanlæg er ved at gå ind i sin sidste fase, hvor pumpespecialisterne fra Sulzer lægger sidste hånd på et helt nyt pumpeanlæg, der skal sende overflodsvand fra Værebro Å tilbage i fjorden, når åen går over sine breder. Sulzers pumper installeres i det specialfremstillede Wehopanel bygværk af polyethylen, PE-plast, fra Uponor Infra. Der er  en bestemt grund til at valget faldt på et Wehopanel:

– Da vi gik i udbud med vores løsning, var det med den hensigt, at bygværket skulle udformes af PE-plast. Pumpebygværket fra Uponor har over 100 års levetid og kan på grund af materialet modstå den kemiske påvirkning fra det stærkt saltholdige vand, der passerer gennem systemet. Helt praktisk, er Wehopanel materialet særdeles velegnet til formålet. På grund af de store dimensioner, er det en fordel, at bygværket, kan præfabrikeres i kun 4 dele på fabrik og derefter nemt og hurtigt svejses sammen nede i udgravningen. Det lette plastmateriale forenkler og forkorter processen. Derfor vidste vi allerede fra starten, at Uponor var de rette til at levere det nødvendige materiel, forklarer Kenneth Larsen, der er teknisk chef hos Sulzer. Han uddyber: 

– Et anlæg af denne slags må ikke fejle. Det var derfor meget vigtigt for os, at Uponors løsninger og resultater er så veldokumenterede, som de er, så vi ved, at vi kan stole på, at alle komponenter lever op til vores krav. I kombination med vores state-of-the-art pumper leverer vi et samlet produkt med meget høj driftssikkerhed og mange års levetid. 

 

Et landsdækkende problem, der kun bliver værre

 I forbindelse med etablering af pumpebygværket er Værebro Å omlagt, hvorefter den skal reetableres. Hos Uponor er de stolte over at være en del af den nye kystsikring i Jyllinge Nordmark. Samtidig er de også meget bevidste om, at situationen omkring Roskilde Fjord langt fra er enestående i Danmark. 

– Beboerne i Jyllinge Nordmark har gentagende gange været plaget af ekstremt vejr med oversvømmede kældre og skader for mange tusinde kroner til følge. Og Roskilde Fjord er ikke en gang blandt de største risikoområder i Danmark, siger projektingeniør ved Uponor Infra, Bent Rønfeldt.

Håber man at finde bedre fremtidsudsigter hos DMI, bliver man skuffet. I en rapport om fremtidige klimaforandringer i Danmark konkluderes det at ”klimaforandringerne forventes at tiltage frem mod 2100. Det vil medføre højere temperaturer, mere vinternedbør, flere og mere intense ekstreme vejrhændelser samt et stigende havniveau” og at ”vi kan forvente, at de hidtil kraftigste nedbørshændelser blegner i forhold til fremtidens vandmængder”.

Sulzers pumpeanlæg færdiggøres i februar, mens det ventes at det samlede kystsikringsanlægget står færdigt i løbet af foråret 2021.

PE-pumpebygværk sikrer stormflodssystem lang levetid

Uponor WehoPanel pumpebygværk 1 3160x2240

Projektinformation

Projektinformation

Land
Denmark
Færdiggørelse
2021
Projekttype
Ny bygning
Bygningstype
Kommunalt byggeri

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