CN106985973B - A kind of sea area probing sand anchor cast anchor and the method that weighs anchor - Google Patents
A kind of sea area probing sand anchor cast anchor and the method that weighs anchor Download PDFInfo
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- CN106985973B CN106985973B CN201710141323.6A CN201710141323A CN106985973B CN 106985973 B CN106985973 B CN 106985973B CN 201710141323 A CN201710141323 A CN 201710141323A CN 106985973 B CN106985973 B CN 106985973B
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- anchor
- predetermined
- sand
- pipeline
- buoy
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Classifications
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- 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
- B63B21/22—Handling or lashing of 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
-
- 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
- B63B21/22—Handling or lashing of anchors
- B63B2021/225—Marker buoys for indicating position of an anchor, or for providing a line connection between the anchor and the water surface
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Piles And Underground Anchors (AREA)
- Earth Drilling (AREA)
Abstract
The present invention relates to a kind of sea area probing sand anchor, including anchor body, the bottom of anchor body is provided with the steel loop for rode.It further relates to a kind of probing of sea area to cast anchor and the method that weighs anchor comprising following steps: (1) position the position of submarine cable line, be marked with the first buoy；(2) it chooses at 1 points as predetermined anchor position and guarantees to keep certain safe distance between each predetermined anchor position and cable, obtain the coordinate and longitude and latitude of four predetermined anchor positions respectively；(3) anchor line is tied up on the steel loop of sand anchor, sand anchor is thrown respectively and is placed on predetermined anchor position, the second buoy is arranged in the free end of anchor line；(4) after the operation of drilling platform ship, the position of sand anchor is found according to the second buoy, sand anchor is fallen into pull-off with a certain distance from the mud face of seabed, is finally twisted anchor for sand anchor and is towed back to drilling platform ship.The present invention by the design of dedicated sand anchor and it is distinctive cast anchor, the method that weighs anchor is arranged, can effectively avoid triggering damaged or hook disconnected to submerged pipeline, protect the pipeline facility in seabed.
Description
Technical field
The present invention relates to field of ocean engineering more particularly to a kind of sea area probing sand anchor cast anchor and the side of weighing anchor
Method.
Background technique
As Along Zhejiang Coast sea area develops and uses, coastal native country and sea area islands and reefs are contacted more and more closely, under the mud face of seabed
Water delivery, oil transportation, optical cable and the military fiber optic cable of distribution are typically distributed across the position of 1~3m under the mud face of seabed.With economic high speed
Develop, the construction of the bridge spanning the sea between island is more and more, and the ocean exploration project involved is more and more, and sea area probing is applied
Work is typically all to rent 100~300 tons of ships to cast anchor positioning, since Area of The East China Sea seabed is mostly accumulated so that mud is floating, in order to guarantee to throw
The stability of ship after anchor generally uses the aduncate anchor type of anchor leaf, but such as in seabed when this kind of anchor type construction end anchor
Mud is directly unmoored under face, as easily triggered damaged by pipeline when distributed pipeline anchor capstan draws anchor under the mud face of seabed or hooking disconnected.
Currently, the laying method existing research of submarine pipeline, such as (application publication number is application No. is 201510128941.8
104696588 A of CN) Chinese invention patent disclose the method that a kind of starting of deep-water subsea pipeline is laid with, while to sea area
The salvaging of middle anchor system pulls and also has research, and such as application No. is 200810205050.8, (application publication number is 101769806 A of CN
Chinese invention patent, the Chinese invention of (application publication number is 102219047 A of CN) is special application No. is 201010151846.7
Benefit etc..However, this method can effectively avoid weighing anchor to seabed mud EDS maps there is presently no a kind of method cast anchor and weighed anchor
Pipeline impacts.
Summary of the invention
First technical problem to be solved by this invention is to provide when one kind weighs anchor for the prior art and be avoided that sea
Bottom tube line triggers sea area probing sand anchor damaged or that hook is disconnected.
Second technical problem to be solved by this invention be for the prior art and providing a kind of application has above-mentioned sand anchor
Sea area probing cast anchor and the method that weighs anchor, this method triggers damaged or hooks disconnected submerged pipeline when effectively can avoid weighing anchor.
The present invention solves technical solution used by above-mentioned first technical problem are as follows: a kind of sea area probing sand anchor, packet
Include anchor body, which is characterized in that the bottom of the anchor body is provided with the steel loop for rode.
Preferably, the anchor body is eight word anchors, the steel ring welding is at the center of the bottom of anchor body, so as to more preferable
It weighs anchor on ground.
The present invention solves technical solution used by above-mentioned second technical problem are as follows: a kind of application has above-mentioned sea area to bore
The sea area probing of spy sand anchor is cast anchor and the method that weighs anchor, it is characterised in that the following steps are included:
(1) position of submerged pipeline is accurately positioned, and is marked with position of first buoy to pipeline；
(2) it using the position of above-mentioned pipeline as reference, chooses at 1 points as predetermined anchor position and guarantees each predetermined anchor position
Certain safe distance is kept between pipeline, obtains the coordinate and longitude and latitude of four predetermined anchor positions respectively, it is above-mentioned each predetermined
In anchor position, any three predetermined anchor positions are not on the same line；
(3) drilling platform ship sails to setting is in place, and keeps the hull of drilling platform ship substantially parallel with water (flow) direction,
Then anchor line is tied up on the steel loop of each sand anchor, sand anchor is thrown respectively and is placed on above-mentioned predetermined anchor position, the length of anchor line is slightly longer than it
Simultaneously the second buoy is arranged in the free end of anchor line in place sea water advanced；
(4) after the operation of drilling platform ship, the position of sand anchor is found according to the second buoy first, then falls sand anchor
It is detached from seabed mud face certain distance, anchor is finally twisted by sand anchor and tows back to drilling platform ship.
Preferably, in the step (4), when it is sea water advanced be less than 10m when, sand anchor is directly dragged to sea；Work as seawater
When depth is greater than 10m, after dragging sand anchor away from seabed mud face 4~6m, then it is dragged to sea.
Preferably, first buoy is at least 5~6, extending direction setting and extremely of each first buoy along pipeline
It is set at the inflection point of pipeline less, also, the spacing of adjacent first buoy is 20~30m, so as to floating better by first
Mark positions the position of pipeline.
Preferably, the setting of the drilling platform ship is 15~20m at a distance from pipeline.
Preferably, each predetermined anchor position is distributed in the setting of drilling platform ship and the surrounding of pipeline, and each predetermined
Safe distance between anchor position and pipeline is greater than 50m.
Preferably, the predetermined anchor position is four, the respectively first predetermined anchor position, the second predetermined anchor position, third are predetermined
Anchor position and the 4th predetermined anchor position, wherein the first predetermined anchor position and the distance between the second predetermined anchor position and pipeline are to be greater than
50m, the predetermined anchor position of third and the distance between the 4th predetermined anchor position and pipeline are 180~200m.
Preferably, the anchor body is eight word anchors, the steel ring welding is at the center of the bottom of anchor body.
Compared with the prior art, the advantages of the present invention are as follows: the bottom of sand anchor used in the present invention is provided with for being anchor
The steel loop of rope can make sand anchor rapid lift-off seabed mud face when weighing anchor in this way, when effectively avoiding weighing anchor, anchor body is sliding in seabed mud face
It moves and the pipeline for being embedded in seabed mud face is impacted.
It is of the invention cast anchor and the method that weighs anchor in, be marked, be arranged multiple pre- by position of first buoy to pipeline
Determine anchor position, certain safe distance is kept between each predetermined anchor position and pipeline, sand anchor is thrown respectively is placed on above-mentioned predetermined anchor position simultaneously
It is marked by the second buoy, the position of sand anchor can be marked when weighing anchor according to the second buoy, then sand anchor is pulled up and is detached from seabed
Mud face certain distance finally twists anchor for sand anchor and tows back to drilling platform ship.
The present invention by dedicated sand anchor design and it is distinctive cast anchor, the method that weighs anchor be arranged, can effectively avoid to Submarine Pipeline
The damaged or hook that triggers of line breaks, and protects the cable installation in seabed.
Detailed description of the invention
Fig. 1 is probing sand anchor structural schematic diagram in sea area in the embodiment of the present invention；
Fig. 2 is the schematic diagram that casts anchor in the embodiment of the present invention；
Fig. 3 is weigh anchor in the embodiment of the present invention schematic diagram when 10m (sea water advanced be less than)；
Fig. 4 is weigh anchor in the embodiment of the present invention schematic diagram when 10m (sea water advanced be greater than).
Specific embodiment
The present invention will be described in further detail below with reference to the embodiments of the drawings.
As shown in Figure 1, a kind of sea area probing sand anchor, including anchor body 1, the anchor body 1 are eight word anchors, the bottom of anchor body 1
Steel loop 2 is welded at center, which is used for rode.The present invention on anchor body 1 by being arranged steel loop 2, when weighing anchor in this way
Can make the rapid lift-off seabed mud face of sand anchor, when effectively avoiding weighing anchor, anchor body 1 seabed mud face slide and to being embedded in seabed mud face
Pipeline 3 impact.
As shown in figs. 2 to 4, sea area probing of the invention cast anchor and weigh anchor method the following steps are included:
(1) position of submerged pipeline 3 is accurately positioned by physical prospecting, and with the first buoy (not shown) to the position of pipeline 3
It is marked, so as to the eye-catching position for intuitively determining pipeline 3.
(2) it using the position of above-mentioned pipeline 3 as reference, chooses at 1 points as predetermined anchor position and guarantees each predetermined anchor position
Certain safe distance is kept between pipeline 3, and the safe distance is greater than 50m, obtain the seat of four predetermined anchor positions respectively
Mark and longitude and latitude, in above-mentioned each predetermined anchor position, any three predetermined anchor positions are not on the same line.
(3) drilling platform ship 4 sails to setting is in place, and puts down the hull of drilling platform ship 4 and water (flow) direction substantially
Row, and the length direction of drilling platform ship 4 and the extending direction of pipeline 3 are substantially vertical, and anchor line is then tied up to the steel of each sand anchor
On ring 2, sand anchor is thrown respectively and is placed on above-mentioned predetermined anchor position, the length of anchor line is slightly longer than sea water advanced where it and in anchor line
Free end the second buoy 5 is set, the second buoy 5 of setting is convenient for finding sand anchor after operation.
(4) after 4 operation of drilling platform ship, the position of sand anchor is found according to the second buoy 5 first, then with the ship that casts anchor
Sand anchor is fallen pull-off with a certain distance from the mud face of seabed by 6, is finally twisted anchor with the anchor capstan of drilling platform ship 4 and is towed back to drilling platform ship 4.
It further, is the position for preferably determining pipeline 3, in above-mentioned steps (1), the first buoy is 5~6, each first
Buoy is arranged along the extending direction of pipeline 3 and is at least set at the inflection point of pipeline, also, the spacing of adjacent first buoy is 20
~30m.
Further, in above-mentioned steps (2), predetermined anchor position is four, the respectively first predetermined anchor position 71, the second predetermined anchor position
72, the predetermined anchor position 73 of third and the 4th predetermined anchor position 74, using the position of pipeline 3 as reference, setting exists for four predetermined anchor positions
The four corners of pipeline 3, and to be all larger than 50m (excellent for the first predetermined anchor position 71 and the distance between the second predetermined anchor position 72 and pipeline 3
It is selected as 50~100m), the predetermined anchor position 73 of third and the distance between the 4th predetermined anchor position 74 and pipeline 3 are 180~200m, from
And can preferably avoid casting anchor and weighing anchor is damaged to pipeline 3.
Further, in above-mentioned steps (3), the setting of drilling platform ship 4 is 15~20m at a distance from pipeline 3, above-mentioned four
A predetermined anchor position is distributed in the setting of drilling platform ship 4 and the surrounding of pipeline 3.
Further, in above-mentioned steps (4), when it is sea water advanced be less than 10m when, sand anchor is directly dragged to sea (such as Fig. 3 institute
Show)；When it is sea water advanced be greater than 10m when, after dragging sand anchor away from seabed mud face 5m, then be dragged to sea (as shown in Figure 4).
It is of the invention cast anchor and the method that weighs anchor in, be marked, be arranged multiple pre- by position of first buoy to pipeline 3
Determine anchor position, certain safe distance is kept between each predetermined anchor position and pipeline 3, sand anchor is thrown respectively to be placed on above-mentioned predetermined anchor position
And marked by the second buoy 5, the position of sand anchor can be marked when weighing anchor according to the second buoy 5, sand anchor is then pulled up into disengaging
Seabed mud face certain distance finally twists anchor for sand anchor and tows back to drilling platform ship 4.The present invention by dedicated sand anchor design and it is peculiar
Cast anchor, the method that weighs anchor setting, can effectively avoid triggering damaged or hook disconnected to submerged pipeline, protect the cable installation in seabed.
Claims (5)
1. a kind of sea area probing of sea area probing sand anchor is cast anchor and the method that weighs anchor, which is characterized in that the sand anchor includes anchor body
(1), the bottom of the anchor body (1) is provided with the steel loop (2) for rode comprising following steps:
(1) position of submerged pipeline (3) is accurately positioned, and is marked with position of first buoy to pipeline (3), described first
Buoy is at least 5~6, and each first buoy is arranged along the extending direction of pipeline (3) and is at least set at the inflection point of pipeline, and
And the spacing of adjacent first buoy is 20~30m；
(2) using the position of above-mentioned pipeline (3) as reference, choose 1 points as predetermined anchor position and guarantee each predetermined anchor position with
Pipeline keeps certain safe distance between (3), obtains the coordinate and longitude and latitude of four predetermined anchor positions respectively, above-mentioned each predetermined
In anchor position, any three predetermined anchor positions are not on the same line；
(3) drilling platform ship (4) sails to setting is in place, and keeps the hull of drilling platform ship (4) parallel with water (flow) direction, connects
Anchor line is tied up on the steel loop (2) of each sand anchor, sand anchor is thrown respectively and is placed on above-mentioned predetermined anchor position, the length of anchor line is slightly longer than
Simultaneously the second buoy (5) are arranged in the free end of anchor line in sea water advanced where it；
(4) after drilling platform ship (4) operation, the position of sand anchor is found according to the second buoy (5) first, then falls sand anchor
Pull-off finally twists anchor and sand anchor is towed back to drilling platform ship (4) with a certain distance from the mud face of seabed, when it is sea water advanced be less than 10m when, will
Sand anchor is directly dragged to sea；When it is sea water advanced be greater than 10m when, after dragging sand anchor away from seabed mud face 4~6m, then be dragged to sea.
2. sea area probing as described in claim 1 is cast anchor and the method that weighs anchor, which is characterized in that the drilling platform ship (4)
Setting is 15~20m at a distance from pipeline (3).
3. sea area probing as claimed in claim 2 is cast anchor and the method that weighs anchor, which is characterized in that each predetermined anchor position is distributed in
The setting of drilling platform ship (4) and the surrounding of pipeline (3), and the safe distance between each predetermined anchor position and pipeline (3) is greater than
50m。
4. sea area probing as claimed in claim 3 is cast anchor and the method that weighs anchor, which is characterized in that the predetermined anchor position is four,
Respectively first predetermined anchor position (71), the second predetermined anchor position (72), the predetermined anchor position of third (73) and the 4th predetermined anchor position (74),
Wherein the first predetermined anchor position (71) and the distance between the second predetermined anchor position (72) and pipeline (3) are greater than 50m, the predetermined anchor position of third
(73) and the distance between the 4th predetermined anchor position (74) and pipeline (3) are 180~200m.
5. sea area probing as described in claim 1 is cast anchor and the method that weighs anchor, which is characterized in that the anchor body (1) is eight word anchors,
At the center for the bottom that the steel loop (2) is welded on anchor body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710141323.6A CN106985973B (en) | 2017-03-10 | 2017-03-10 | A kind of sea area probing sand anchor cast anchor and the method that weighs anchor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710141323.6A CN106985973B (en) | 2017-03-10 | 2017-03-10 | A kind of sea area probing sand anchor cast anchor and the method that weighs anchor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106985973A CN106985973A (en) | 2017-07-28 |
| CN106985973B true CN106985973B (en) | 2019-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710141323.6A Active CN106985973B (en) | 2017-03-10 | 2017-03-10 | A kind of sea area probing sand anchor cast anchor and the method that weighs anchor |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107697230A (en) * | 2017-09-01 | 2018-02-16 | 中交第航务工程局有限公司 | A kind of anchorage regardless prestretching anchoring method |
| CN107826214B (en) * | 2017-10-25 | 2019-02-19 | 中国港湾工程有限责任公司 | It sea area probing sand anchor and casts anchor and the method that weighs anchor |
| CN109613578B (en) * | 2018-12-29 | 2020-11-06 | 上海大学 | Ship positioning method for searching underwater target |
| CN109720507B (en) * | 2019-01-02 | 2020-04-14 | 中国矿业大学 | Rigid-elastic mooring deep sea platform structure |
| CN110356510A (en) * | 2019-06-14 | 2019-10-22 | 安徽省利诚水产开发有限公司 | A kind of big safe berthing methods of water surface monomer fishing boat |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2701688B1 (en) * | 1993-02-19 | 1995-09-22 | Corbiere Jerome | DEVICE FOR LOCATING MARINE ANCHORS AND ANCHORS THUS EQUIPPED. |
| JP2636173B2 (en) * | 1994-07-29 | 1997-07-30 | 久俊 吉田 | Small anchor |
| CN204567999U (en) * | 2014-12-16 | 2015-08-19 | 湖北华舟重工应急装备股份有限公司 | Bridge train heavy has thrown anchor-hold |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005007987A (en) * | 2003-06-18 | 2005-01-13 | Fukushima Tatsuya | Anchor |
-
2017
- 2017-03-10 CN CN201710141323.6A patent/CN106985973B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2701688B1 (en) * | 1993-02-19 | 1995-09-22 | Corbiere Jerome | DEVICE FOR LOCATING MARINE ANCHORS AND ANCHORS THUS EQUIPPED. |
| JP2636173B2 (en) * | 1994-07-29 | 1997-07-30 | 久俊 吉田 | Small anchor |
| CN204567999U (en) * | 2014-12-16 | 2015-08-19 | 湖北华舟重工应急装备股份有限公司 | Bridge train heavy has thrown anchor-hold |
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|---|---|
| CN106985973A (en) | 2017-07-28 |
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Address after: 315031, Ningbo, Jiangbei Town, Jiangbei District, Zhejiang, Jiefang Road 178 Patentee after: Zhejiang engineering survey and Design Institute Group Co.,Ltd. Address before: 315031, Ningbo, Jiangbei Town, Jiangbei District, Zhejiang, Jiefang Road 178 Patentee before: ZHEJIANG ENGINEERING INVESTIGATION INSTITUTE |