CN102582790A - Serial-connection anchors and arrangement method of serial-connection anchors - Google Patents

Serial-connection anchors and arrangement method of serial-connection anchors Download PDF

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Publication number
CN102582790A
CN102582790A CN2012100392155A CN201210039215A CN102582790A CN 102582790 A CN102582790 A CN 102582790A CN 2012100392155 A CN2012100392155 A CN 2012100392155A CN 201210039215 A CN201210039215 A CN 201210039215A CN 102582790 A CN102582790 A CN 102582790A
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CN
China
Prior art keywords
anchor
serial
mooring
rope
connection cable
Prior art date
Application number
CN2012100392155A
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Chinese (zh)
Inventor
郑国富
丁兰
朱健康
王辉荣
魏观渊
杨章武
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福建省水产研究所
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Application filed by 福建省水产研究所 filed Critical 福建省水产研究所
Priority to CN2012100392155A priority Critical patent/CN102582790A/en
Publication of CN102582790A publication Critical patent/CN102582790A/en

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Abstract

The invention discloses serial-connection anchors and an arrangement method of the serial-connection anchors. The serial-connection anchor comprises a front anchor and a rear anchor which are connected in series. The serial-connection anchors are characterized in that a Lochner anchor is taken as the front anchor which is closer to a mooring fixing structure object, a hoe type high holding power anchor which has an excellent grabbing force effect is taken as the rear anchor which is farther to the mooring fixing structure object, a steel wire rope is adopted as a connecting mooring rope for connecting the front anchor and the rear anchor, a small circle ring through which an auxiliary rope can pass through is arranged on a position of the connecting mooring rope, which is 1-1.5 m close to the front anchor, the rear anchor is thrown to the sea from an operation board and then is embedded into the earth depending on forward running inertia of the operation board, the auxiliary rope penetrates through the small circle ring of the connecting mooring rope, the front anchor is put down slowly from the operation board, simultaneously the auxiliary rope is loosened slowly until the front anchor is contacted with the ground, then the auxiliary rope is drawn out, and the operation board runs forwards so as to enable the front anchor to be embedded into the ground, so that the anchor dropping is finished. According to the serial-connection anchors and the arrangement method, the serial-connection anchors can be stressed simultaneously, so that the mooring rope can be ensured to be at a horizontal stressing state all the time, therefore, the mooring capacity of a mooring fixing system can be improved to the greatest extent, and according to a test, the grabbing force factor of the serial-connection anchors is 5.3 times of the conventional serial-connection anchors.

Description

A kind of mother and sons' anchor and method to set up thereof

Technical field

The present invention relates to a kind of mother and sons' anchor and method to set up thereof.

Background technology

It is methods commonly used during offshore structures is moored admittedly that extreme climate or complicated marine environment use many anchoring pools down.Mother and sons' anchor is claimed back anchor again; Being meant is together in series two anchors in a certain way (wherein is called as preceding anchor near the anchor of mooring works admittedly; Be called as the back anchor away from the anchor of mooring works admittedly) after cast sea bed in the seabed, again by preceding anchor hawser rope with the anchoring method of offshore structures Gu Bo in specified sea areas.The general method to set up of current mother and sons' anchor is jettisoninged the back anchor on the seabed for anchor before being provided with earlier again, and the penetration performance of dependence back anchor self is gone into the end when preceding anchor drags of anchor stressed, and require: it is preceding anchor that big anchor is used in (1); (2) preceding anchor is set earlier, again the back anchor is jettisoninged in the seabed; (3) must use anchor chain between the anchor before and after; The anchor that (3) must use can reliably bury is the back anchor; (4) receive the anchor except that Roc, anchor must be connected on the anchor hawser rope of back anchor through the certain-length anchor chain before the other types.

From last visible, there are weak point in current mother and sons' anchor structure and method to set up: (1) back anchor is just as spare anchor or additional anchor, and it is stressed after preceding anchor drags of anchor, just to bury, and its reliability that in time buries can't guarantee; (2),, can't give full play to mooring force (claiming the again to climb) performance of back anchor in power because it is in the state that just buries even the back anchor can in time bury; (3) anchor chain possibly tangle with the front and back anchor in the setting up procedure, can't guarantee correct setting; (4) use the anchor chain link cost higher.

Summary of the invention

The object of the invention; Be that a kind of mother and sons' anchor and method to set up thereof will be provided, solve the defective that current mother and sons' anchor exists comprehensively, anchor all buries when being provided with before and after guaranteeing; Simultaneously stressed when normally mooring admittedly; Before anchor not aweigh, connection cable and anchor before and after reducing between anchor tangle risk, reduce back anchor and invest.

The present invention realizes like this; Said a kind of mother and sons' anchor and method to set up thereof; It comprises at interval anchor before and after the bonded assembly, it is characterized in that: use Roc to receive anchor for from mooring the nearer preceding anchor of works admittedly, use the good anchor of grip effect for from mooring works back anchor far away admittedly; Connection cable between the anchor of front and back uses steel rope, and its length should be greater than the some rice of the minimum depth of water of anchoring point, and the end that anchors into its connection cable of soil back later on still is retained on the workboat deck is advisable; Connection cable is being provided with the small circle ring that is used to pass auxiliary rope near 1~1.5 meter position of preceding anchor; Elder generation is thrown into the back anchor marine from workboat, rely on workboat to move ahead and anchor into soil after coherence lets; Have on the workboat people respectively with connection cable and anchor hawser rope terminal be connected to Roc receive anchor promptly before on the appointment connecting bore of anchor; On the small circle ring of connection cable, wear an auxiliary rope, and auxiliary rope is submitted to the people on the support boat, the human auxiliary rope on the support boat improves connection cable, prevents that connection cable and preceding anchor strand is in the same place; From workboat, slowly put down preceding anchor again, the also slow Panasonic of the people on while support boat auxiliary rope, extremely preceding anchor lands, and extracts auxiliary rope out, and workboat anchors into soil before moving ahead and letting, the completion of casting anchor.

The anchor that grip effect according to the invention is good is a hoe formula high holding power anchor, and it comprises anchor pole, anchor leaf, and an end of its anchor pole is a hook-type, and the turning of hook-type is circular-arc; Its anchor leaf is processed by an integral plate, and middle be rectangle partly, and the rectangle both sides are little 8-10 of sticking up ° the wing plate of making progress, and the wing plate front end is sharp tooth, and both wings are symmetrical; The hook-type place end face welding of the bottom surface of part and anchor pole is fixed in the middle of the anchor leaf, between anchor leaf and anchor pole, establishes strut bar; Anchor pole is established a pipe near the top at turning, and pipe is vertical with anchor pole, has a trammel beam to pass pipe, and is fixed on symmetric position.

The invention has the beneficial effects as follows; (1) use Roc to receive anchor for from mooring the nearer preceding anchor of thing admittedly; Can not guarantee that the anchor hawser rope of back anchor is that connection cable is in horizontal strained condition even utilize Roc to receive when anchor drags of anchor yet always, improve to greatest extent and moor the mooring capacity of system admittedly from the advantage at the end; (2) employing is provided with the installation method that the back anchor is provided with preceding anchor more earlier, and anchor all is in strained condition before and after guaranteeing; Contingent connection cable and preceding anchor tangles when (3) avoiding preceding anchor that operation is set.

Description of drawings

Fig. 1 eats the side schematic view of mud in the seabed for the present invention.

Fig. 2 is a hoe formula high holding power anchor scheme drawing according to the invention.

Among the figure: 1. anchor before, 2. back anchor, 3. connection cable, 4. small circle ring, 5. anchor pole, 6. anchor leaf, 7. hook-type, 8. rectangle, 9. the front end of the wing is sharp tooth, 10. strut bar, 11. pipes, 12. trammel beams.

The specific embodiment

A kind of mother and sons' anchor according to the invention and method to set up thereof, it comprises at interval anchor before and after the bonded assembly, uses Roc to receive anchor for from mooring the nearer preceding anchor 1 of thing admittedly, uses the superior anchor of grip effect (like hoe formula high holding power anchor) for from mooring thing back anchor 2 far away admittedly; Connection cable 3 between the anchor of front and back is being provided with the small circle ring 4 that is used to pass auxiliary rope near 1~1.5 meter position of preceding anchor; Elder generation is thrown into the back anchor marine from workboat, workboat moves ahead and lets the back anchor eat mud; Have on the workboat people respectively with connection cable and anchor hawser rope terminal be connected to Roc receive anchor promptly before on the appointment connecting bore of anchor; On small circle ring, wear an auxiliary rope, and auxiliary rope is submitted to the people on the support boat, the human auxiliary rope on the support boat improves connection cable, prevents that connection cable and preceding anchor strand is in the same place; From workboat, slowly put down preceding anchor again, the also slow Panasonic of the people on while support boat auxiliary rope, extremely preceding anchor lands, and extracts auxiliary rope out, and anchor was eaten mud, the completion of casting anchor before workboat moved ahead and lets.

Back according to the invention anchor adopts hoe formula high holding power anchor, and it comprises anchor pole 5, anchor leaf 6, and an end of its anchor pole 5 is a hook-type 7, and the turning of hook-type 7 is circular-arc; Be rectangle 8 partly in the middle of its anchor leaf, anchor leaf 6 is processed by an integral plate, and middle is rectangle partly, and the rectangle both sides are the all-wing aircraft shape, with rectangle at an angle, little the sticking up that make progress, the front end of the wing is pointed tooth 9 shapes, both wings are symmetrical; The hook-type place end face welding of the bottom surface of part and anchor pole is fixed in the middle of the anchor leaf, between anchor leaf and anchor pole, establishes strut bar 10; Anchor pole is established a pipe 11 near the top at turning, and pipe 11 is vertical with anchor pole 5, has a trammel beam 12 to pass pipe 11, and is fixed on symmetric position.The radial section of said anchor pole is laterally oval.

For mother and sons' anchor process of casting anchor is accomplished smoothly, front and back according to the invention anchor connection cable 3 length should be greater than the minimum depth of water in sea area, place.

Concrete operation method of the present invention:

(1), earlier the back anchor is set to the specified coordinate position, promptly from will back anchor (hoe formula high holding power anchor) jettisoning predetermined seabed and utilize the workboat coherence that moves ahead that its injection seabed is stressed of workboat by workboat according to the chart work result;

(2) receive on the appointment connection location of anchor (preceding anchor) will back anchor hawser rope end on the workboat being connected to Roc reliably, will be connected to Roc reliably and receive on the anchor, in the small circle ring of front and back anchor connection cable, penetrate auxiliary rope with mooring thing bonded assembly hawser admittedly;

(3) support boat is near workboat and accept the auxiliary rope that passes on the workboat;

(4) support boat separates with workboat, and workboat and support boat unclasp Roc simultaneously equably and receive anchor and receive the anchor seabed of fully arriving up to Roc;

(5) support boat is extracted auxiliary rope out, and the workboat utilization coherence that moves ahead is received anchor injection seabed with Roc, accomplishes that operation being set.

Should dive under water behind the certain hour (as month) anchors into soil and strained condition before and after observing, if note abnormalities, should weigh anchor and reset.

This admittedly the pool system be fit to that the roving offshore structures Gu Bo of needs is not in specified sea areas with breeding facility, buoy, marine beacon light etc., its suitable seabed substrate is mud, silt or husky mud etc.

Technology of the present invention is simple, and cost is lower, and under the condition that guarantees the breeding facility production safety, amplitude peak ground reduces the investment of the system that moors admittedly.The invention enables mother and sons' anchor simultaneously stressed, test shows, grip coefficient of the present invention is 5.3 times of traditional back anchor.

Claims (2)

1. mother and sons' anchor and method to set up thereof, it comprises at interval anchor before and after the bonded assembly, it is characterized in that: use Roc to receive anchor for from mooring the nearer preceding anchor of works admittedly, use the good anchor of grip effect for from mooring works back anchor far away admittedly; Connection cable between the anchor of front and back uses steel rope, and its length should be greater than the some rice of the minimum depth of water of anchoring point, and the end that anchors into its connection cable of soil back later on still is retained on the workboat deck is advisable; Connection cable is being provided with the small circle ring that is used to pass auxiliary rope near 1~1.5 meter position of preceding anchor; Elder generation is thrown into the back anchor marine from workboat, rely on workboat to move ahead and anchor into soil after coherence lets; Have on the workboat people respectively with connection cable and anchor hawser rope terminal be connected to Roc receive anchor promptly before on the appointment connecting bore of anchor; On the small circle ring of connection cable, wear an auxiliary rope, and auxiliary rope is submitted to the people on the support boat, the human auxiliary rope on the support boat improves connection cable, prevents that connection cable and preceding anchor strand is in the same place; From workboat, slowly put down preceding anchor again, the also slow Panasonic of the people on while support boat auxiliary rope, extremely preceding anchor lands, and extracts auxiliary rope out, and workboat anchors into soil before moving ahead and letting, the completion of casting anchor.
2. according to said a kind of mother and sons' anchor of claim 1 and method to set up thereof, it is characterized in that: the anchor that said grip effect is good is a hoe formula high holding power anchor, and it comprises anchor pole, anchor leaf, and an end of its anchor pole is a hook-type, and the turning of hook-type is circular-arc; Its anchor leaf is processed by an integral plate, and middle be rectangle partly, and the rectangle both sides are little 8-10 of sticking up ° the wing plate of making progress, and the wing plate front end is sharp tooth, and both wings are symmetrical; The hook-type place end face welding of the bottom surface of part and anchor pole is fixed in the middle of the anchor leaf, between anchor leaf and anchor pole, establishes strut bar; Anchor pole is established a pipe near the top at turning, and pipe is vertical with anchor pole, has a trammel beam to pass pipe, and is fixed on symmetric position.
CN2012100392155A 2012-02-21 2012-02-21 Serial-connection anchors and arrangement method of serial-connection anchors CN102582790A (en)

Priority Applications (1)

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CN2012100392155A CN102582790A (en) 2012-02-21 2012-02-21 Serial-connection anchors and arrangement method of serial-connection anchors

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Application Number Priority Date Filing Date Title
CN2012100392155A CN102582790A (en) 2012-02-21 2012-02-21 Serial-connection anchors and arrangement method of serial-connection anchors

Publications (1)

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CN102582790A true CN102582790A (en) 2012-07-18

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3742535A (en) * 1971-03-31 1973-07-03 Bendix Corp Open ocean shallow water moor
US4173938A (en) * 1976-10-06 1979-11-13 Constructions Metalliques De Provence Anchors and anchoring system
CN1182394A (en) * 1995-04-26 1998-05-20 布鲁帕特有限公司 Mooring bed assessment apparatus and method
CN1882472A (en) * 2003-09-17 2006-12-20 海洋动力传输有限公司 Mooring system
CN101545264A (en) * 2008-06-20 2009-09-30 中交第一航务工程局有限公司 Installation technology for semicircular sink box
CN201864004U (en) * 2010-09-08 2011-06-15 芜湖新联造船有限公司 Heavy anchor for pontoon bridge operation

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3742535A (en) * 1971-03-31 1973-07-03 Bendix Corp Open ocean shallow water moor
US4173938A (en) * 1976-10-06 1979-11-13 Constructions Metalliques De Provence Anchors and anchoring system
CN1182394A (en) * 1995-04-26 1998-05-20 布鲁帕特有限公司 Mooring bed assessment apparatus and method
CN1882472A (en) * 2003-09-17 2006-12-20 海洋动力传输有限公司 Mooring system
CN101545264A (en) * 2008-06-20 2009-09-30 中交第一航务工程局有限公司 Installation technology for semicircular sink box
CN201864004U (en) * 2010-09-08 2011-06-15 芜湖新联造船有限公司 Heavy anchor for pontoon bridge operation

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
白克敏: "《航海辞典》", 28 February 1989, 知识出版社 *

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Application publication date: 20120718