NO121490B

NO121490B -

Info

Publication number: NO121490B
Application number: NO16151266A
Authority: NO
Inventors: G Twele
Original assignee: Kalle Ag
Priority date: 1965-02-02
Filing date: 1966-02-01
Publication date: 1971-03-01
Also published as: DK127562B; FI45276C; DE1634087C3; DE1634087B2; DE1634087A1; BE675845A; NL6600048A; FI45276B; GB1129840A; SE314635B

Description

Fremgangsmåte til beskyttelse av brenningstruede kystavsnitt. Procedure for the protection of coastal sections at risk of burning.

Oppfinnelsen vedrører en fremgangsmåte til beskyttelse av kystavsnitt, spesielt sandkyststrøk som trues ved brenning. The invention relates to a method for the protection of coastal sections, especially sandy coastal areas that are threatened by burning.

Det er kjent at kystavsnitt som er bevokst med sjøtang angripes i meget mindre grad av brenning enn slike som ikke har noen tangvekst. Av denne grunn er det allerede blitt foreslått å erstatte den naturlige sjøtang med ved én ende sammenbuntede strimler av kunststoff-folier som tynges på den sammenbuntede ende og derved skal forankres på det toruede kystavsnitt. Disse kunststoffbånd retter seg opp ved flo i vannet og legger seg ved ebbe når det angjeldende kystavsnitt ikke er oversvømmet av vann ned på bunnen. Det har imidlertid vist seg at den ved denne "kunstige sjøtang" bevirkede beskyttelse ikke er tilstrekkelig da de på denne måte beskyttede kystavsnitt, enskjønt i langsommere tempo, allikevel angripes av brenning. Dess-uten er fremstillingen og forankring av disse materialer relativt omstendelig. It is known that sections of the coast that are overgrown with seaweed are attacked to a much lesser degree by burning than those that do not have any seaweed growth. For this reason, it has already been proposed to replace the natural seaweed with strips of plastic foil bundled together at one end, which are weighted on the bundled end and thereby anchored to the towed coastal section. These plastic bands straighten up at high tide in the water and lie down at low tide when the coastal section in question is not flooded with water down to the bottom. However, it has been shown that the protection provided by this "artificial seaweed" is not sufficient as the coastal sections protected in this way are still attacked by surf, albeit at a slower pace. In addition, the production and anchoring of these materials is relatively cumbersome.

Oppgaven for foreliggende oppfinnelse var å utvikle The task for the present invention was to develop

en fremgangsmåte og et materiale som muliggjør en bedre beskyttelse av truede kystavsnitt. a method and a material that enables better protection of endangered coastal sections.

Fremgangsmåten ifølge oppfinnelsen består i at man belegger de truede kystdeler med et i løs forbinding befinnende filtet, stripeformet kunststoffmateriale og forankrer belegget i enkelte punkter som eventuelt kan være forbundet med hverandre ved over belegget førte tråder. The method according to the invention consists in coating the endangered coastal parts with a felt, strip-shaped plastic material in a loose connection and anchoring the coating in individual points which may possibly be connected to each other by wires passed over the coating.

Som stripeformet i løs forbinding befinnende kunststoffmateriale kommer det eksempelvis i betraktning strimler av kunst-stoffolier som er anordnet i ikke regulert stilling til hverandre og filtet til løse baller. Spesielt fordelaktig lar det seg anvende de ved dypstrekkefremgangsmåten fremkomne etter graden av utstansede formdeler med hull utstyrte foliebaner. Disse kan enten langs hullene oppsnittes til strimler som deretter bringes i et uregelmessig virvar til hverandre eller også anvendes således at man av de hullede foliebaner bestående ruller griper deres indre og ytre ende og trekker de fra hverandre til siden til en spiralformet tvunnet langstrakt struktur, spesielt den førstnevnte mulighet hvor de hullede foliebaner oppsnittes langs hullene og de dannede strimler bringes i et uregelmessig virvar til hverandre gir et belegg som viser godt sammenhold og i spesiell grad er egnet for å ta energi fra de rullende bølger. Strips of plastic foil that are arranged in a non-regulated position to each other and felt into loose balls come into consideration as strip-shaped plastic material in a loose connection. Particularly advantageously, it is possible to use the foil webs equipped with holes produced by the deep-drawing method after the degree of punched-out mold parts. These can either be cut along the holes into strips which are then brought together in an irregular jumble, or used in such a way that one grabs the inner and outer ends of the perforated foil webs and pulls them apart to the side to form a spirally twisted elongated structure, especially the first-mentioned option where the perforated foil webs are cut along the holes and the formed strips are brought together in an irregular tangle gives a coating that shows good cohesion and is particularly suitable for absorbing energy from the rolling waves.

Forankring av beskyttelsesbeleggene ifølge oppfinnelsen kan foruten med peler foregå også ved tyngdegjøring med stener. Anchoring of the protective coatings according to the invention can, in addition to piles, also take place by weighting with stones.

Også her er det mulig å forbinde stenene ved hjelp av tråder av korrosjonsfast materiale, eksempelvis kunststofftråder til et vid-masket nett, som utbredes over belegget. Here, too, it is possible to connect the stones using threads of corrosion-resistant material, for example plastic threads into a wide-mesh net, which is spread over the coating.

Materialet ifølge oppfinnelsen byr en fremragende beskyttelse for brenningstruede kystavsnitt. Da det består av korrosjonsfast materiale, er et engang anbragt belegg meget varig og ettersynsfritt. Videre åpner det set ved foreliggende oppfinnelse en fordelaktig anvendelse for folieavfall. The material according to the invention offers excellent protection for coastal sections at risk of burning. As it consists of corrosion-resistant material, a once-applied coating is very durable and maintenance-free. Furthermore, the set of the present invention opens up an advantageous application for foil waste.

Claims

1. Procedure for the protection of coastal sections at risk of burning, characterized by coating the threatened coastal sections with a bale-like coating of strip-shaped foil material that is in a loose, irregular connection and is felt in each other and possibly anchors the coating at certain points.

2. Method according to claim 1, characterized in that as plastic material which is in loose connection with each other, strips of plastic foils are used which are arranged in an irregular position to each other and which are felted into loose balls.

3. Method according to claim 1, characterized in that the plastic material which is in loose connection with each other is used in the deep drawing method formed according to the degree of punched-out mold parts with holes equipped with foil parts.

4. Method according to claims 1-3} characterized in that plastic material is drawn as a foil web which appears in the deep drawing method and which, according to the degree of the punched-out mold parts, is equipped with holes from each other into a spirally twisted, elongated structure.

5. Method according to claims 1-4, characterized in that the anchoring is carried out using piles.

6. Method according to claims 1-4, characterized in that the coating is anchored to the subsoil with the help of heavy stones.