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EP2444313A2 - Ancre avec moyens de s'enterrer dans le fond marin et pour faciliter sa libération - Google Patents

Ancre avec moyens de s'enterrer dans le fond marin et pour faciliter sa libération Download PDF

Info

Publication number
EP2444313A2
EP2444313A2 EP11184897A EP11184897A EP2444313A2 EP 2444313 A2 EP2444313 A2 EP 2444313A2 EP 11184897 A EP11184897 A EP 11184897A EP 11184897 A EP11184897 A EP 11184897A EP 2444313 A2 EP2444313 A2 EP 2444313A2
Authority
EP
European Patent Office
Prior art keywords
anchor
anchor according
narrow portion
shank
weight
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP11184897A
Other languages
German (de)
English (en)
Other versions
EP2444313A3 (fr
Inventor
Jan Van Wijhe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anchors & Connections Holding Bv
Original Assignee
Anchors & Connections Holding Bv
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Anchors & Connections Holding Bv filed Critical Anchors & Connections Holding Bv
Publication of EP2444313A2 publication Critical patent/EP2444313A2/fr
Publication of EP2444313A3 publication Critical patent/EP2444313A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/24—Anchors
    • B63B21/26—Anchors securing to bed
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/74—Means for anchoring structural elements or bulkheads
    • E02D5/80—Ground anchors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/24—Anchors
    • B63B21/26—Anchors securing to bed
    • B63B2021/265—Anchors securing to bed by gravity embedment, e.g. by dropping a pile-type anchor from a certain height
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/24—Anchors
    • B63B21/26—Anchors securing to bed
    • B63B2021/267—Anchors securing to bed by penetration of anchor into the sea bed using water jets, e.g. by ground or sand fluidisation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/24—Anchors
    • B63B21/26—Anchors securing to bed
    • B63B21/29—Anchors securing to bed by weight, e.g. flukeless weight anchors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B2241/00—Design characteristics
    • B63B2241/02—Design characterised by particular shapes
    • B63B2241/10—Design characterised by particular shapes by particular three dimensional shapes
    • B63B2241/12—Design characterised by particular shapes by particular three dimensional shapes annular or toroidal

Definitions

  • the present invention relates to an anchor comprising a narrow portion and a widened portion connected thereto.
  • Such anchors are known, for example in the form of a mushroom anchor.
  • a mushroom anchor is a stock anchor, with a heavy spherical segment attached to the end thereof.
  • the anchor is used as a permanent anchor, for example in clay or fine sand bottoms.
  • the semi-spherical segment sinks slowly into the seabed, whilst the shank remains largely above the seabed.
  • the object of the invention is to provide an improved permanent anchor which is capable of providing a large axial and radial holding force, which is easy to install, quickly ready for use, easy to remove and/or suitable for several bottom types.
  • the anchor is provided with at least one liquid channel, which has a connection for a liquid supply line at one end and which has at least one outlet opening at the other end, which outlet opening is present in the outer surface of the widened portion.
  • the narrow portion is made up substantially of a shank, which is preferably hollow or filled with a mass which is heavier than water, for example concrete.
  • the liquid channel preferably extends through the hollow or filled shank in that case. Furthermore, the liquid channel preferably extends from the anchor in a flexible hose, such that said hose can extend toward and above the water surface upon installation of the anchor, where it can be attached to a buoy.
  • the hose is preferably capable of withstanding high pressures. When the installation is complete, the hose can preferably be disconnected near the upper side of the shank.
  • the widened portion is preferably substantially conical in shape, with the point of the cone pointing away from the narrow portion.
  • the liquid channel is preferably split, with several outlet openings being present in the outer surface of the widened portion.
  • the majority of said outlet openings point substantially in the direction of the narrow portion in that case, and preferably at least one of the outlet openings points away from the narrow portion.
  • At least one weight extends around the narrow portion, which weight can preferably move freely over the narrow portion.
  • the weight preferably has a larger lateral diameter than the wide portion.
  • several such weights extend around the narrow portion, which weights can move freely over said narrow portion and which exhibit an increasingly larger diameter, seen in the direction from the wide portion.
  • the first weight is preferably substantially frustoconical in shape, seen in the direction from the wide portion.
  • the first weight is preferably provided with guide slots along its frustoconical surface, which guide slots extend in the direction toward the point of the conical wide portion.
  • the other weights are preferably substantially disc-shaped.
  • the weights are provided with a hole in the centre thereof, so that they can move up and down over the narrow portion, which is preferably in the form of a shank.
  • the weights are preferably made of metal and/or concrete.
  • the anchor shown in figure 1 comprises a hollow shank 1, which is provided with a hollow, substantially conical, widened head 2 at the bottom side. Attached to the anchor is a chain (not shown), which connects the anchor to a buoy 3 at the water surface.
  • a water conduit 4 extends in the lower part of the hollow shank 1, which water conduit is connected to a water hose 5 in the upper part of the shank, which water hose extends through the upper opening in the shank, along the chain, to the buoy 3 at the water surface.
  • FIG. 4 shows that the bottom side of the water conduit 4 is provided with a distribution chamber 6, to which several water channels 7, 8 connect.
  • One water channel 7 extends from the distribution chamber to the point of the head 2, the other four water channels 8 extend from the distribution chamber 6 to the upper surface of the head 2.
  • the outlet openings of the water channels 8 are provided with nozzles which are directed upwards and which are arranged at regularly spaced intervals around the shank 1 near the outer side of the upper surface of the head 2.
  • the nozzles are slightly recessed in the wall of the head 2.
  • the anchor is furthermore provided with a frustoconical metal weight 9, which has an axial through bore having a diameter that corresponds to the diameter of the shank 1.
  • the weight 9 can thus slide over the shank 1.
  • the bottom side of the weight 9 has approximately the same diameter as the upper side of the head 2, and the weight 9 rests on the upper side of the head 2 in such a manner that the diameter of the weight increases in upward direction.
  • the head 2 and the weight 9 jointly form a conical, widened body.
  • the weight 9 is provided with guide slots 10 in the frustoconical surface thereof, which guide slots extend from the bottom upwards.
  • weights 11, 12, 13, 14 are provided on the anchor. Said weights are substantially disc-shaped, being provided with an axial bore having a diameter that corresponds to the diameter of the shank 1. As a result, the weights 11, 12, 13, 14 can slide over the shank 1.
  • the lowermost concrete weight 11 rests on the metal weight 9, and has a diameter which is larger than the diameter of the upper side of the metal weight 9.
  • the weights 12, 13, 14 above said weight 11 each have a larger diameter than the respective weights 11, 12, 13 thereunder. In this way the head 2 and the weights 9, 11, 12, 13, 14 jointly form a substantially conical widened body.
  • the concrete weights 11, 12, 13, 14 are provided with reinforcing elements in the form of reinforcing bars 15.
  • FIG. 3 shows that the shank 1 is provided with a (hoisting) eye 16 at the upper side for attaching the chain.
  • the eye 16 is fixed to a horizontal pin 17 of an attachment member 18, in such a manner that the eye 16 can pivot about the horizontal pin 17.
  • the attachment member 18 is connected to the shank 1 by means of a slide bearings 20, 21 in such a manner that the eye 16 can pivot about a vertical axis.
  • the shank 1 is provided with holes 22 near the upper side, through which seawater, sand or clay can enter the shank 1 and the head 2.
  • the shank 1 and the head 2 are filled with concrete 23.
  • the anchor as described in the foregoing is also suitable, for example, for anchoring a cellar of a building in the ground, so as to enable the building to withstand the upward pressure of rising groundwater.
  • several anchors are installed in the ground, for example near the corners of the cellar, after which the cellar is attached to the sunken anchors upon placement of the cellar.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Piles And Underground Anchors (AREA)
  • Artificial Fish Reefs (AREA)
EP11184897.4A 2010-10-21 2011-10-12 Ancre avec moyens de s'enterrer dans le fond marin et pour faciliter sa libération Withdrawn EP2444313A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL2005558A NL2005558C2 (nl) 2010-10-21 2010-10-21 Anker.

Publications (2)

Publication Number Publication Date
EP2444313A2 true EP2444313A2 (fr) 2012-04-25
EP2444313A3 EP2444313A3 (fr) 2013-07-10

Family

ID=44121640

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11184897.4A Withdrawn EP2444313A3 (fr) 2010-10-21 2011-10-12 Ancre avec moyens de s'enterrer dans le fond marin et pour faciliter sa libération

Country Status (2)

Country Link
EP (1) EP2444313A3 (fr)
NL (1) NL2005558C2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102635093A (zh) * 2012-05-09 2012-08-15 余光明 一种带高压喷孔的埋入式宽尾结构分体锚
CN102785760A (zh) * 2012-08-30 2012-11-21 余光明 一种埋入式钢筋混凝土分体锚
CN114182741A (zh) * 2021-11-16 2022-03-15 山东省高速养护集团有限公司 拉压复合型扩大头锚杆加固路基边坡方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE720032C (de) * 1940-06-04 1942-04-22 Habil Alfred Streck Dr Ing Erdanker mit mehreren Ankerkloetzen
GB1318242A (en) * 1970-08-21 1973-05-23 Shell Int Research Method of sinking a body into the earth surface
GB1560725A (en) * 1976-04-21 1980-02-06 Secretary Industry Brit Anchoring devices
US4076313A (en) * 1976-08-20 1978-02-28 Sperandeo Iii Frank P Underwater recovery apparatus
US4312289A (en) * 1979-11-13 1982-01-26 Joseph Conrad Permanent mooring apparatus
FR2802503A1 (fr) * 1999-12-17 2001-06-22 Yannick Duval Ancre marine anti-naufrage automatique
US20050241561A1 (en) * 2004-04-06 2005-11-03 Ruter Edward J Multi purpose marine anchor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102635093A (zh) * 2012-05-09 2012-08-15 余光明 一种带高压喷孔的埋入式宽尾结构分体锚
CN102635093B (zh) * 2012-05-09 2014-11-05 余光明 一种带高压喷孔的埋入式宽尾结构分体锚
CN102785760A (zh) * 2012-08-30 2012-11-21 余光明 一种埋入式钢筋混凝土分体锚
CN102785760B (zh) * 2012-08-30 2015-10-21 余光明 一种埋入式钢筋混凝土分体锚
CN114182741A (zh) * 2021-11-16 2022-03-15 山东省高速养护集团有限公司 拉压复合型扩大头锚杆加固路基边坡方法

Also Published As

Publication number Publication date
EP2444313A3 (fr) 2013-07-10
NL2005558C2 (nl) 2012-04-24

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