NO128175B - - Google Patents
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- Publication number
- NO128175B NO128175B NO01652/69A NO165269A NO128175B NO 128175 B NO128175 B NO 128175B NO 01652/69 A NO01652/69 A NO 01652/69A NO 165269 A NO165269 A NO 165269A NO 128175 B NO128175 B NO 128175B
- Authority
- NO
- Norway
- Prior art keywords
- strings
- elements
- anchoring device
- sea grass
- artificial sea
- Prior art date
Links
- 238000004873 anchoring Methods 0.000 claims description 13
- 241000544058 Halophila Species 0.000 claims description 10
- 239000004568 cement Substances 0.000 claims description 7
- 239000004576 sand Substances 0.000 claims description 4
- 239000012815 thermoplastic material Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 1
- 239000004744 fabric Substances 0.000 description 11
- 244000025254 Cannabis sativa Species 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000007788 liquid Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 241001474374 Blennius Species 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/043—Artificial seaweed
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D25/00—Woven fabrics not otherwise provided for
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/26—Artificial reefs or seaweed; Restoration or protection of coral reefs
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
Description
faste boreplattformer, hvor sterke stromninger og hvirvler rundt fundamentpeler og bjelker kan erodere sjbbunnen og vaske ut fun-damentet. Ved å tilveiebringe en sone beskyttet ved kunstig sjogras rundt den nedre ende av fundamentets baeredeler setter sjbens erosjonsvirkning ikke lengre fundamentets stabilitet i fare. fixed drilling platforms, where strong currents and eddies around foundation piles and beams can erode the sea bed and wash out the foundation. By providing a zone protected by artificial seagrass around the lower end of the foundation's supporting parts, the erosive action of the sea no longer endangers the foundation's stability.
Det er bnskelig at når sjbgraset er satt på plass under It is desirable that when the grass has been put in place underneath
vann strekker dets strenger eller tråder seg fritt og uavhengig og danner derved et slags skjerm i vannet. Denne konstruksjon kan oppnåes ved å feste sjbgrasstrengene indeviduel.t i et side om side arrangement istedet for i grupper eller bunter festet ved adskilte steder. Dessverre er forbindelsen av strengenes nedre ender med forankringsmidlene i sjbgraset i et regulært side om side forhold komplisert og kostbar og er derfor utilfredsstillende og uantagelig for et produkt.som skal brukes i meget store mengder for å beskytte et vidstrakt kystareal. Et formål med åppfinnelsen er å tilveiebringe sjogras hvori strengene er anordnet i et regulært monster og er festet på en enkel måte til forankringsanordningen, og- som kan forankres til en sjbbunn på en billig og effek-tiv måte. water stretches its strings or threads freely and independently, thereby forming a kind of screen in the water. This construction can be achieved by attaching the strands of grass individually in a side-by-side arrangement rather than in groups or bundles attached at separate locations. Unfortunately, the connection of the lower ends of the strings with the anchoring means in the sjbgrass in a regular side-by-side relationship is complicated and expensive and is therefore unsatisfactory and unacceptable for a product which is to be used in very large quantities to protect a vast coastal area. One purpose of the invention is to provide sea grass in which the strings are arranged in a regular monster and are attached in a simple way to the anchoring device, and which can be anchored to a ship's bottom in a cheap and effective way.
Ifblge oppfinnelsen tilveiebringes et kunstig sjogras omfattende et antall forlengede, bbyelige og i vann flytende elementer av et syntetisk termoplastmateriale som ved en av deres ender er vevet sammen med filamentlignende elementer for å danne en stoffstrimmel hvortil er festet forankringsanordningen avpasset til å holde elementene nær sjbbunnen. According to the invention, an artificial seagrass is provided comprising a number of elongated, flexible and water-floating elements of a synthetic thermoplastic material which at one of their ends are woven together with filament-like elements to form a fabric strip to which is attached the anchoring device adapted to keep the elements close to the sea bottom.
Den- vevede konstruksjon ved sjbgrasets nedre ende sikrer The woven construction at the lower end of the sjbgras ensures
et parallelt side om side arrangement av strengene for å danne under vann en bred kontinuerlig skjerm av strenger forsterket ved strengenes nedre ender, og tilveiebringer en enkel og sterk anord-ning for å forbinde forankringsanordningen med strengene. a parallel side-by-side arrangement of the strings to form underwater a wide continuous screen of strings reinforced at the lower ends of the strings, providing a simple and strong means of connecting the anchoring device to the strings.
Den vevede strimmel kan være forholdsvis smal, noen- få cen-timeter bred er vanligvis tilstrekkelig. Strengene og fortrinnsvis også filamentelementene er fortrinnsvis fremstilt av en ekstrudert, skummet polyolefin såsom polypropylen eller en polyetylen med hby tetthet hvilke strenger har en tetthet mindre enn 300 g/l og som deretter strekkes til minst fem ganger deres lengde. Sådanne strenger har utseende av tynne og smale bånd, f.eks. 2 til 2,5 mm brede, som kan veves for å danne et sterkt stoff. For å holde sjbgraset forankret til en sjbbunn kan vekter såsom betongblokker eller metallstenger, kjettinger eller kabler være forbundet med stoffstrimlen. I en foretrukket utfbrelse av oppfinnelsen er stoffstrimlen formet som en hul, rbrformet som eller lbpegang gjennom hvilken en kabel, kjetting eller stang kan fores inn. I> det tilfelle er det ikke nbdvendig med noen ekstra bindeanordninger for å feste sjbgraset til forankringen. Sjbgraset transporteres til vannet fortrinnsvis uten forankringsanordningen og på arbeidsstedet på utleggingsfartbyet fores kjettinger eller andre langstrakte forankringsanordninger inn i den hule sem eller lbpegang. Den rbrformede. som kan veves tett nok til å danne en slags slange som kan inneholde en flytende herdbar sementblanding som helles eller pumpes inn i den slangelignende som og tillates å herdne i denne for å danne forankringsmidlene. For dette byemed kan sjbgraset legges på sjbbunnen i en kontinuerlig lengde med en ende på en strand eller lekter, hvorfra den flytende sement pumpes inn i den hule som av sjbgraset i dettes hele lengde. The woven strip can be relatively narrow, a few centimeters wide is usually sufficient. The strands and preferably also the filament elements are preferably made from an extruded, foamed polyolefin such as polypropylene or a high density polyethylene which strands have a density of less than 300 g/l and which are then stretched to at least five times their length. Such strings have the appearance of thin and narrow bands, e.g. 2 to 2.5 mm wide, which can be woven to form a strong fabric. To keep the sjbgrass anchored to a sjb bottom, weights such as concrete blocks or metal rods, chains or cables can be connected to the fabric strip. In a preferred embodiment of the invention, the fabric strip is shaped as a hollow, tubular like or passage through which a cable, chain or rod can be inserted. In that case, it is not necessary to use any additional binding devices to attach the grass to the anchorage. The seaweed is preferably transported to the water without the anchoring device and at the work site on the laying vessel, chains or other elongated anchoring devices are inserted into the hollow sem or gangway. The rib-shaped one. which may be woven tightly enough to form a sort of hose which may contain a liquid curable cement mixture which is poured or pumped into the hose-like and allowed to cure therein to form the anchoring means. For this purpose, the sjbgrass can be laid on the sbb bottom in a continuous length with one end on a beach or barge, from which the liquid cement is pumped into the hollow as of the sbbgrass in its entire length.
Bruk av en flytende sementblanding for stoffrbret muliggjbr at sjbgraset kan legges ut kontinuerlig og hurtig. Dessuten vil det sementfylte ror av sjbgraset lett innstille seg selv i overensstemmelse med sjbbunnens profil og roret vil anta et elip-tisk tverrsnitt med den lange akse rettet horisontalt således at de krefter som virker på roret ved undervannsstrommer er relativt små og det er mindre sannsynlig at roret vil bli forskjbvet. Den rbrformede som eller lbpegang kan formes ved forst å veve et rett stoffstykke eller -strimmel og derpå legge strimlens lengdekanter på hverandre og feste dem sammen ved sying eller på annen måte. The use of a liquid cement mixture for the fabric surface enables the sod grass to be laid out continuously and quickly. In addition, the cement-filled rudder of the sjbgrass will easily adjust itself in accordance with the profile of the sjb bottom and the rudder will assume an elliptical cross-section with the long axis directed horizontally so that the forces acting on the rudder during underwater currents are relatively small and it is less likely that the rudder will be displaced. The rib-shaped like or loop can be formed by first weaving a straight piece or strip of fabric and then laying the longitudinal edges of the strip on top of each other and fastening them together by sewing or in some other way.
Den varigste og foretrukne metode er imidlertid å veve strengene direkte med en lokke ved deres nedre ender, hvorved sjbgraset alle-rede på vevstolen utstyres med en stoffslange ved sin nedre ende. Istedet for sement kan en blanding av sand og vann pumpes inn i slangen, og vannet vil strbmme ut gjennom slangens porer mens sanden blir tilbake som en bbyelig forankring som kari folge enhver forandring i sjbbunnens kontur som kan oppstå etter at sjbgraset er lagt ut. The most permanent and preferred method, however, is to weave the strings directly with a loop at their lower ends, whereby the sjbgras already on the loom is fitted with a tube of fabric at its lower end. Instead of cement, a mixture of sand and water can be pumped into the hose, and the water will flow out through the hose's pores, while the sand remains as a flexible anchor that can follow any change in the contour of the seabed that may occur after the seagrass has been laid.
På tegningen, som ikke er i skala, viser som eksempel en utfbrelsesform av sjogras ifblge oppfinnelsen. The drawing, which is not to scale, shows as an example an embodiment of sea grass according to the invention.
Sjbgraset omfatter en lang rekke av parallelle strukkede skumpolypropylenstrenger 10 som er fra 2 til 2,5 mm brede og har en fri lengde på omkring 2 meter. Strengenes nedre ender er vevet sammen med andre strenger 10 som er identiske med de fbrstnevnte. Der dannes således en stoffstrimmel 11 ved sjbgrasets nedre ende hvortil forankringsanordninger kan forbindes sikkert og som hol-der de vertikalt forlbpende strenger i en regulær horisontal inn-deling med det onskede antall strenger pr lengdeenhet av (sjbgraset, f.eks. 5 strenger pr. cm. Stoffstrimlen 11 er formet som et ror som når det legges flatt har en bredde på, f.eks. omkring 15 cm. På tegningen er en stang armerings jern 12 fort inn gjennom stoffroret 11. Som tidligere angitt kan roret istedet fylles med sement eller sand som muliggjbr at sjbgraset kan.legges ut meget hurtig og med et minimum av arbeide. The sjbgras comprises a long row of parallel stretched polypropylene foam strands 10 which are from 2 to 2.5 mm wide and have a free length of about 2 metres. The lower ends of the strings are woven together with other strings 10 which are identical to the aforementioned. A fabric strip 11 is thus formed at the lower end of the grass to which anchoring devices can be securely connected and which holds the vertically continuous strands in a regular horizontal division with the desired number of strands per unit length of (the grass, e.g. 5 strands per cm. The fabric strip 11 is shaped like a rudder which, when laid flat, has a width of, for example, around 15 cm. In the drawing, a rod of reinforcing iron 12 is inserted quickly through the fabric rudder 11. As previously indicated, the rudder can instead be filled with cement or sand which enables the grass to be laid out very quickly and with a minimum of work.
Fire stenger 12 med sjogras forbundet til sanime kan fore-nes ved sveising eller på annen måte for å danne et horisontalt anbragt firkantet eller rektangulær enhet hvori hver av de fire sider er utstyrt med.sjogras. Stbrre enheter kan omfatte flere firkanter eller rektangler som alle har sjogras på deres sider for å beskytte et stort areal på sjbbunnen. Sjbgraset kan også formes på en sådan måte at stoffrbrene av samme sammen danner en stigeformet struktur, idet stenger eller andre forankringsmidler innfores i trinnene og/eller sidene av stigen. Four rods 12 with sjogras connected to sanime can be joined by welding or in some other way to form a horizontally placed square or rectangular unit in which each of the four sides is equipped with sjogras. Larger units may comprise several squares or rectangles that all have seagrass on their sides to protect a large area of the seabed. The sjbgrass can also be shaped in such a way that the fabric fibers of the same together form a ladder-shaped structure, as rods or other anchoring means are inserted into the steps and/or sides of the ladder.
Claims (3)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB09375/68A GB1176772A (en) | 1968-04-24 | 1968-04-24 | A Seaweed Substitute. |
Publications (1)
Publication Number | Publication Date |
---|---|
NO128175B true NO128175B (en) | 1973-10-08 |
Family
ID=10128310
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO01652/69A NO128175B (en) | 1968-04-24 | 1969-04-22 |
Country Status (10)
Country | Link |
---|---|
BE (1) | BE731854A (en) |
BR (1) | BR6908243D0 (en) |
DK (1) | DK132508C (en) |
ES (1) | ES165964Y (en) |
FR (1) | FR2006816A1 (en) |
GB (1) | GB1176772A (en) |
IE (1) | IE33411B1 (en) |
NL (1) | NL158567B (en) |
NO (1) | NO128175B (en) |
SE (1) | SE352910B (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8402361D0 (en) * | 1984-01-30 | 1984-02-29 | Alsop Peter | Controlling erosion of sea/river beds |
DE3403165A1 (en) * | 1984-01-31 | 1985-08-01 | Fa. Joh. Moritz Rump, 5990 Altena | DEVICE FOR GROUND STABILIZATION IN WATER CONSTRUCTION |
US5871303A (en) * | 1996-06-17 | 1999-02-16 | Marine Environmental Solutions L.L.C. | Viscous drag and non-laminar flow component of underwater erosion control system |
AU758271B2 (en) | 1997-10-03 | 2003-03-20 | Marine Environmental Solutions, L.L.C. | Synthetic aquatic structure |
US6171686B1 (en) | 1997-10-03 | 2001-01-09 | Marine Environmental Solutions, L.L.C. | Synthetic aquatic structure |
US6060153A (en) * | 1997-10-03 | 2000-05-09 | Marine Environmental Solutions, L.L.C. | Synthetic aquatic structure |
US6343567B1 (en) | 1998-08-14 | 2002-02-05 | Marine Environmental Solutions, L.L.C. | Synthetic aquatic structure and method |
US6244218B1 (en) | 1999-08-20 | 2001-06-12 | Marine Environmental Solutions L.L.C. | Aquatic structure and method |
ITLI20070011A1 (en) * | 2007-06-04 | 2008-12-05 | Roberto Bedini | PRACTICE OF SYNTHETIC POSIDONIA OCEANICA |
CN104695381B (en) * | 2015-03-05 | 2016-03-02 | 黄河勘测规划设计有限公司 | Rivers bank slope imitates pasture and water energy dissipating safeguard structure |
-
1968
- 1968-04-24 GB GB09375/68A patent/GB1176772A/en not_active Expired
-
1969
- 1969-04-22 ES ES1969165964U patent/ES165964Y/en not_active Expired
- 1969-04-22 NL NL6906154.A patent/NL158567B/en not_active IP Right Cessation
- 1969-04-22 BR BR208243/69A patent/BR6908243D0/en unknown
- 1969-04-22 NO NO01652/69A patent/NO128175B/no unknown
- 1969-04-22 BE BE731854D patent/BE731854A/xx unknown
- 1969-04-22 DK DK218069A patent/DK132508C/en not_active IP Right Cessation
- 1969-04-22 IE IE540/69A patent/IE33411B1/en unknown
- 1969-04-22 SE SE05675/69A patent/SE352910B/xx unknown
- 1969-04-22 FR FR6912583A patent/FR2006816A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
DE1920401B2 (en) | 1976-10-28 |
NL158567B (en) | 1978-11-15 |
SE352910B (en) | 1973-01-15 |
IE33411L (en) | 1969-10-24 |
IE33411B1 (en) | 1974-06-26 |
BR6908243D0 (en) | 1973-02-22 |
NL6906154A (en) | 1969-10-28 |
ES165964U (en) | 1971-06-16 |
DK132508B (en) | 1975-12-15 |
ES165964Y (en) | 1971-12-01 |
FR2006816A1 (en) | 1970-01-02 |
DK132508C (en) | 1976-05-17 |
GB1176772A (en) | 1970-01-07 |
DE1920401A1 (en) | 1969-11-13 |
BE731854A (en) | 1969-10-22 |
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