{"id":1024,"date":"2022-01-28T01:30:00","date_gmt":"2022-01-28T01:30:00","guid":{"rendered":"https:\/\/adriadapt.eu\/?post_type=adaptation_option&#038;p=1024"},"modified":"2022-02-03T12:02:41","modified_gmt":"2022-02-03T12:02:41","slug":"zapornice-za-obranu-od-olujnih-uspora-protupoplavne-barijere","status":"publish","type":"adaptation_option","link":"https:\/\/adriadapt.eu\/hr\/adaptation-options\/zapornice-za-obranu-od-olujnih-uspora-protupoplavne-barijere\/","title":{"rendered":"Zapornice za obranu od olujnih uspora\/protupoplavne barijere"},"content":{"rendered":"\n<p><strong>Opis<\/strong><\/p>\n\n\n\n<p>Zapornice za obranu od olujnih uspora\/protupoplavne barijere fiksne su instalacije koje omogu\u0107uju prolazak vode u normalnim uvjetima i imaju zapornice ili pregrade koje se mogu zatvoriti u slu\u010daju olujnih uspora ili visokih plima s ciljem spre\u010davanja poplave. Izgra\u0111ene su radi za\u0161tite urbanih podru\u010dja i infrastrukture u podru\u010djima u kojima bi olujni uspori i morske poplave mogli imati zna\u010dajan utjecaj. Mogu zatvoriti more, u\u0161\u0107e rijeke ili kanal. Barijere mogu biti glavni infrastrukturni sustavi koji podrazumijevaju zna\u010dajne tro\u0161kove izgradnje i \u010desto se povezuju s drugim mjerama za\u0161tite od poplave, primjerice, nasipima, obalnim zidovima i dohranjivanjem pla\u017ea. Zbog tro\u0161kova koje zahtijevaju i potencijalnih utjecaja, zapornice za obranu od olujnih uspora\/ protupoplavne barijere relativno su rijetke. Poznati primjeri uklju\u010duju barijere na rijeci Temzi na isto\u010dnoj strani Londona, barijere Maeslantkering i Ijssel (Nizozemska), Sankt Peterburg (Rusija), itd. Na Jadranu, najpoznatiji primjer su protupoplavne barijere u Veneciji (sustav \u201eMose\u201c) koje \u010dine najve\u0107u konstrukciju ovog tipa, ali i mobilne barijere \u201ePorte Vinciane\u201c na obalnom podru\u010dju Cesenatica. Na hrvatskoj obali takve mjere trenutno ne postoje, uglavnom zato \u0161to je obala za\u0161ti\u0107ena otocima, a oscilacije plime su relativno male. Me\u0111utim, odre\u0111ene vrste mobilnih barijera (zajedno s drugim sustavima za desalinizaciju vode) pripremaju se na podru\u010dju delte Neretve kako bi se smanjio prodor slane vode u plodno tlo toga podru\u010dja, ali i zaslanjivanje slatke vode koja se naj\u010de\u0161\u0107e koristi za navodnjavanje.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" loading=\"lazy\" width=\"926\" height=\"623\" src=\"https:\/\/adriadapt.eu\/wp-content\/uploads\/2021\/04\/MOSE-1.jpg\" alt=\"\" class=\"wp-image-1026\" srcset=\"https:\/\/adriadapt.eu\/wp-content\/uploads\/2021\/04\/MOSE-1.jpg 926w, https:\/\/adriadapt.eu\/wp-content\/uploads\/2021\/04\/MOSE-1-300x202.jpg 300w, https:\/\/adriadapt.eu\/wp-content\/uploads\/2021\/04\/MOSE-1-768x517.jpg 768w, https:\/\/adriadapt.eu\/wp-content\/uploads\/2021\/04\/MOSE-1-116x78.jpg 116w\" sizes=\"(max-width: 926px) 100vw, 926px\" \/><figcaption><br><em>Preklopna vrata MOSE sustava u Veneciji (Photo: Consorzio Venezia Nuova)<\/em><\/figcaption><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p>Ograni\u010davaju\u0107i \u010dimbenici zapornica za obranu od olujnih uspora\/protupoplavnih barijera su<strong>:<\/strong><\/p>\n\n\n\n<ul><li>Relativno sporo vrijeme zatvaranja protupoplavnih barijera u hitnim slu\u010dajevima. Stoga su potrebni u\u010dinkoviti sustavi prognoziranja koji \u0107e predvidjeti olujne uspore i plimne udare. To ovisi o sustavu: Porte Vinciane zatvaraju se relativno brzo.<strong><\/strong><\/li><li>Rizik od tehni\u010dkog kvara zapornice\/barijere (npr. barijera se ne zatvara pravilno);<\/li><li>Pitanje vremenskog okvira, odnosno koliko dugo barijere mogu ostati odr\u017eive uslijed neizvjesnih budu\u0107ih klimatskih promjena i porasta razine mora;<\/li><li>Prili\u010dno skupi projekti u kombinaciji s utjecajima na okoli\u0161 u fazi izgradnje projekta.<strong><\/strong><\/li><li>Odr\u017eavanje radi spre\u010davanja stvaranja nanosa tj. siltacije.<\/li><\/ul>\n\n\n\n<p>S druge strane, \u010dimbenici uspjeha mogu biti<strong>:<\/strong> <strong><\/strong><\/p>\n\n\n\n<ul><li>Postoje\u0107e zapornice i barijere pokazale su se u\u010dinkovitima u borbi protiv olujnih uspora.<\/li><li>Vrlo stabilna vrsta infrastrukture.<\/li><li>Zapornice\/protupoplavne barijere mogu se rabiti za regulaciju prodora morske vode u slatkovodna podru\u010dja i vodostaj, \u010dime se pru\u017eaju i usluge ekosustava. U tom slu\u010daju mo\u017ee do\u0107i do njihova potapanja (zatvara se samo donji dio hidrauli\u010dkog sustava, jer se slana voda giba u dubokom sloju).<\/li><\/ul>\n\n\n\n<p><strong>Tro\u0161kovi i koristi<\/strong><\/p>\n\n\n\n<p>Koristi od zapornica za obranu od olujnih uspora\/protupoplavnih barijera ogledaju se u za\u0161titi od olujnih uspora koju pru\u017eaju naseljima i infrastrukturi, a istodobno omogu\u0107uju kontinuirani prolaz za potrebe brodarstva, ribarstva i vrsta koje \u017eive u vodi (kada nisu u pogonu). S druge strane, njihovo projektiranje mo\u017ee zahtijevati zna\u010dajna sredstava i u fazi izgradnje biti \u0161tetno za okolne ekosustave na projektnom podru\u010dju.<\/p>\n\n\n\n<p><strong>Vrijeme provedbe i vijek trajanja<\/strong><\/p>\n\n\n\n<p>Vrijeme provedbe i vijek trajanja zapornica za obranu od olujnih uspora\/protupoplavnih barijera ovisi o budu\u0107im klimatskim uvjetima i podru\u010dju na kojemu \u0107e se projekt realizirati. Ove konstrukcije mogu\u0107e je postaviti na na\u010din da se pregrade i nasipi podi\u017eu zajedno s porastom razine mora, ali takvu mogu\u0107nost trebalo bi razmotriti u po\u010detnim fazama projekta.<\/p>\n\n\n\n<p>U prosjeku, vrijeme provedbe ove mogu\u0107nosti prilagodbe dulje je od 15 godina, dok se o\u010dekivani vijek trajanja mo\u017ee zna\u010dajno razlikovati i biti u rasponu od preko 25 do 100 godina.<\/p>\n\n\n\n<p><strong>Izvor dodatnih informacija<\/strong><\/p>\n\n\n\n<p><a href=\"https:\/\/climate-adapt.eea.europa.eu\/metadata\/adaptation-options\/storm-surge-gates-flood-barriers\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/climate-adapt.eea.europa.eu\/metadata\/adaptation-options\/storm-surge-gates-flood-barriers<\/a><\/p>\n\n\n\n<p>PAP\/RAC (2021) <em>Priru\u010dnik za ja\u010danje otpornosti obala Jadrana<\/em>, INTERREG AdriAdapt projekt, Split.<\/p>\n","protected":false},"featured_media":2250,"template":"","adaptation_option_category":[115],"adaptation_option_sector":[457,221,306,207,377],"adaptation_option_ipcc_category":[],"adaptation_option_climate_impact":[287,132,330],"adaptation_option_keyword":[454,442,456,455],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.14 - 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