CN101475054A - Method for realizing deep buried cable salvage by using high pressure water spraying shallow sea bury flushing device - Google Patents
Method for realizing deep buried cable salvage by using high pressure water spraying shallow sea bury flushing device Download PDFInfo
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- CN101475054A CN101475054A CNA2009100451787A CN200910045178A CN101475054A CN 101475054 A CN101475054 A CN 101475054A CN A2009100451787 A CNA2009100451787 A CN A2009100451787A CN 200910045178 A CN200910045178 A CN 200910045178A CN 101475054 A CN101475054 A CN 101475054A
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Abstract
The invention relates to a method for salving a deep-buried cable by using a high-pressure water-injection shallow sea burying material washing device, which is characterized in that: a special rope for salving cables is arranged in a high-pressure spray gun; the end of the rope is connected with a salving anchor chain; the anchor chain is connected with a group of roller type slaving anchors; then the a platform is positioned; the high-pressure water-injection shallow sea burying material washing device is laid according to a laying procedure; a high-pressure heavy-flow water pump is started and provided to the high-pressure water-injection shallow sea burying material washing device to cut the seabed; and the roller type anchor hooks the cable and dragging the cable out of the water surface. The method has he advantages of effectively salving failed cables deeply buried through the development and improvement of functions of the prior equipment, saving cost and solving the problem of salving deep-buried cables.
Description
Technical field
The present invention relates to a kind of utilization and spray water with high pressure the shallow sea, belong to buried cable salvage method and technology field, seabed towards burying the method that device is realized buried cable salvage.
Background technology
At present, the method for the submarine cable that traditional salvaging is buried underground generally all is to salvage anchor by special use to realize that its laying depth that can salvage cable is all below 1.5 meters.Yet now our extra large cable bury underground begin to tend to buried, our coastal area of china especially because the continental shelf is very mild, the depth of water of the depth of water in 500 kilometer range is shallow and change very little.Simultaneously very frequent in the fishery operation of coastal area of china, to add present fishing boat and more and more be equipped with advanced fishing gear, traditional laying depth has in the past had no idea for 1.5 meters to satisfy cable by safety guard-safeguard, and directly influences normal communication operation.Therefore now, extra large cable laying depth all has been required to bring up to 3 meters, our coastal area of china especially, and the cable of 3 meters buried depths in the world wide now, China has just accounted for more than 90 percent.Buried measure has like this had greatly the safety aspect of cable and has improved, and is carrying out near 3 meters sections of burying underground in the waters China, and the fault rate of generation is almost nil.Yet, because cause for quality and many X factors of extra large cable own, for example large-scale motion such as diastrophic activity, still can cause great threat to cable, in case cable et out of order, not only can bring the inconvenience of communication etc. to people, also can make country bear the infringement of enormous economic loss and national image simultaneously.Because 3 meters posteriority behaviors of burying underground,, therefore salvage 3 meters even the more buried cable of establishing and brought a very important problem to cable repairing ship for repairing causes very big difficulty.
Summary of the invention
The purpose of this invention is to provide a kind of buried submarine cable that is suitable for salvaging, comprise the method for communication and power cable.
In order to achieve the above object, technical scheme of the present invention has provided a kind of utilization and has sprayed water with high pressure the shallow sea towards burying the method that device is realized buried cable salvage, it is characterized in that step is:
Step 1, private cable salvaged put into the shallow sea of spraying water with high pressure with rope and dash and bury in the high-pressure injection rifle of device, fag end just goes out the high-pressure injection rifle, the salvaging anchor chain that on fag end, connects 15～25 millimeters of long 1.5～2 meters, diameters, on anchor chain, connect one group of rolling type and salvage anchor, to spray water with high pressure the shallow sea towards burying device fit on moveable platform, connect the shallow sea of spraying water with high pressure towards burying device with the wirerope on the hydraulic pressure master traction machine, connect the high-pressure high-flow water pump simultaneously;
Step 3, according to the submarine geology situation shallow sea of spraying water with high pressure being dashed the high-pressure injection mouth that buries on the device is configured, analyze the shearing force of submarine geology, according to its intensity situation configuration high-pressure injection mouth, if geology is hard, be that shearing force is greater than 50kpa, the injection pressure of injection orifice is not less than 10 kilograms, if geology is soft or be the sandy end, be that shearing force is between 0 to 50kpa, require to reduce pressure and increase injection orifice raising flow, pressure per hour is not less than at least 750 cubes of 5 kilograms and traffic requirements, and wirerope length is redefined for 2.5 to 3 times the depth of water of burying the cable place;
Step 4, platform is positioned at leaves the cable route vertically to the place of 3～5 times of depth of waters, dashing the dispensing program of burying device according to the shallow sea of spraying water with high pressure discharges, in the process of dispensing, the tensioner of control cable salvaging rope keeps spraying water with high pressure, and this is motionless towards burying the interior rolling type anchorage of device in the shallow sea;
When step 5, arrival seabed, control is salvaged the rope and the dispensing speed of main traction machine wirerope and the speed that platform advances and is consistent, and reaches pre-configured length up to wirerope length, and main carrying cable and salvaging rope then stop;
Step 6, startup high-pressure high-flow water pump offer the shallow sea of spraying water with high pressure towards burying device, sea bed is cut, promptly dash and bury, dashing when burying, it is motionless to require tensioner to hold the salvaging rope, the shallow sea of spraying water with high pressure dashes the high-pressure injection rifle bury device toward transferring to desired depth, dashes and buries device and vertical salvaging is done towards the cable direction together towards the rolling type anchor that buries in the device in the shallow sea of spraying water with high pressure with the platform shallow sea of spraying water with high pressure in tow;
Step 7, judge that by the tension variation on the main traction machine shallow sea of spraying water with high pressure dashes the high-pressure injection rifle bury device and whether passes through cable, be wrapped with jetting gun for avoiding cable, pack up rifle, cable will slide to the rolling type anchor like this;
Step 8, cable tensioner can show whether the rolling type anchor colludes cable, after confirming that cable is colluded, tensioner is put the speed of salvaging rope and the speed that platform moves ahead is consistent, according to the depth of water, platform continue the to move ahead distance of 1～2.5 times of depth of water, the shallow sea that at this time requires simultaneously to spray water with high pressure dashes the jetting gun that buries device and is raised to 0.5～2 meter apart from the seabed;
Step 9, the shallow sea of spraying water with high pressure dashes and to bury device and continue to proceed to after the safety distance of 1.5～2 times of depth of waters by the time, the platform that stops reclaims the shallow sea of spraying water with high pressure towards burying device until it is reclaimed upper mounting plate according to normal procedure, control platform retreats, and synchronously reclaims and salvages rope and rolling type salvaging anchor;
Step 10, platform is controlled at the vertical direction of cable, cable is hauled out from the seabed.
As everyone knows, one step of most critical is how to salvage the cable water outlet after knowing the fault of cable when repairing cable, especially when the cable laying depth degree of depth during greater than traditional 1.5 meters buried depths.This method adopts the existing shallow sea of spraying water with high pressure to dash and buries device and other similar preparation of construction, and it is carried out exploitation and development on the function, also promptly utilizes this equipment that the function of high pressure cutting sea bed, the cable salvage when synchronously cutting sea bed are arranged itself.
Advantage of the present invention is: utilizing on the basis of existing installation, by function development and transformation, salvage buried failure cable effectively, save cost on the one hand, solve a difficult problem of salvaging buried cable on the other hand.
The specific embodiment
Specify the present invention below in conjunction with embodiment.
Embodiment
Present embodiment provides a kind of utilization to spray water with high pressure the shallow sea towards burying device, be designated hereinafter simply as the dragon plough, realize the method for buried cable salvage, the dragon plough selects for use the shallow sea of S. B. Submarine Systems Co., Ltd. to spray water with high pressure towards burying device, the lucky star ship of platform S. B. Submarine Systems Co., Ltd. is as operation platform, on this platform, have high-pressure hydraulic pump, water injection pump, main traction machine and carrying cable, cable tensioner, gantry crane or similar crane, the steps include:
Step 1, private cable salvaged with rope put in the high-pressure injection rifle of dragon plough, fag end just goes out the high-pressure injection rifle, the salvaging anchor chain that on fag end, connects 20 millimeters of long 2 meters, diameters, on anchor chain, connect one group of rolling type and salvage anchor, dragon is ploughed the fit on moveable platform, connect the pliosaur plough with the wirerope on the hydraulic pressure master traction machine, connect the high-pressure high-flow water pump simultaneously; In this step, can also install position-limited lever in high-pressure injection gun breech portion exit.Specific requirement is directly to be welded on the outlet of jetting gun afterbody with 50 millimeters steel bar to be drawn in the jetting gun by the cable tensioner is counter with the rolling type anchor that prevents to be placed in one.
Step 3, the high-pressure injection mouth of dragon being ploughed according to the submarine geology situation are configured, analyze the shearing force of submarine geology, according to its intensity situation configuration high-pressure injection mouth, if geology is hard (shearing force is greater than 50kpa), injection orifice requires to reduce as far as possible and improves injection pressure (pressure is not less than 10 kilograms); If (shearing force 0～50kpa) of the softer or sandy end of geology, require reducing pressure increases injection orifice and improves flow (pressure be not less than 5 kilograms and traffic requirement at least 750 cubes per hour), wirerope length is redefined for 2.5 to 3 times the depth of water of burying the cable place;
Step 4, platform is positioned at leaves the cable route vertically to the place of 4 times of depth of waters, discharge according to the dispensing program of dragon plough, in the process of dispensing, the tensioner that control cable is salvaged rope keeps rolling type anchorage in the dragon plough, and this is motionless;
When step 5, arrival seabed, control is salvaged the rope and the dispensing speed of main traction machine wirerope and the speed that platform advances and is consistent, and reaches pre-configured length up to wirerope length, and main carrying cable and salvaging rope then stop;
Step 6, startup high-pressure high-flow water pump offer the dragon plough, sea bed is cut, promptly dash and bury, dashing when burying, it is motionless to require tensioner to hold the salvaging rope, the high-pressure injection rifle of dragon plough is toward transferring to desired depth, and desired depth is decided according to the actual conditions of sea bed, does vertical salvaging towards the cable direction with the imperial in tow plough of platform together with the rolling type anchor in the dragon plough;
Step 7, judge by the tension variation on the main traction machine whether the high-pressure injection rifle of dragon plough passes through cable, is wrapped with jetting gun for avoiding cable, packs up rifle, and cable will slide to the rolling type anchor like this;
Step 8, cable tensioner can show whether the rolling type anchor colludes cable, after confirming that cable is colluded, tensioner is put the speed of salvaging rope and the speed that platform moves ahead is consistent, according to the depth of water, platform continue the to move ahead distance of 2 times of depth of waters at this time requires the jetting gun of dragon plough to be raised to apart from 1.5 meters of sea bed simultaneously;
Step 9, by the time the dragon plough continues to proceed to after the safety distance of 2 times of depth of waters, and the platform that stops reclaims the dragon plough until it is reclaimed upper mounting plate according to normal procedure, and control platform retreats, and synchronously reclaims to salvage rope and rolling type is salvaged anchor;
Step 10, platform is controlled at the vertical direction of cable, cable is hauled out from the seabed.
Claims (1)
1. a utilization is sprayed water with high pressure the shallow sea towards burying the method that device is realized buried cable salvage, it is characterized in that step is:
Step 1, private cable salvaged put into the shallow sea of spraying water with high pressure with rope and dash and bury in the high-pressure injection rifle of device, fag end just goes out the high-pressure injection rifle, the salvaging anchor chain that on fag end, connects 15～25 millimeters of long 1.5～2 meters, diameters, on anchor chain, connect one group of rolling type and salvage anchor, to spray water with high pressure the shallow sea towards burying device fit on moveable platform, connect the shallow sea of spraying water with high pressure towards burying device with the wirerope on the hydraulic pressure master traction machine, connect the high-pressure high-flow water pump simultaneously;
Step 3, according to the submarine geology situation shallow sea of spraying water with high pressure is dashed the high-pressure injection mouth bury on the device and be configured, analyze the shearing force of submarine geology, according to its intensity situation configuration high-pressure injection mouth, if geology is hard, be shearing force greater than 50kpa, the injection pressure of injection orifice is not less than 10 kilograms; If geology is soft or be the sandy end, be that shearing force is between 0 to 50kpa, require reducing pressure increases injection orifice and improves flow, and pressure per hour is not less than at least 750 cubes of 5 kilograms and traffic requirements, wirerope length is redefined for 2.5 to 3 times the depth of water of burying the cable place;
Step 4, platform is positioned at leaves the cable route vertically to the place of 3～5 times of depth of waters, dashing the dispensing program of burying device according to the shallow sea of spraying water with high pressure discharges, in the process of dispensing, the tensioner of control cable salvaging rope keeps spraying water with high pressure, and this is motionless towards burying the interior rolling type anchorage of device in the shallow sea;
When step 5, arrival seabed, control is salvaged the rope and the dispensing speed of main traction machine wirerope and the speed that platform advances and is consistent, and reaches pre-configured length up to wirerope length, and main carrying cable and salvaging rope then stop;
Step 6, startup high-pressure high-flow water pump offer the shallow sea of spraying water with high pressure towards burying device, sea bed is cut, promptly dash and bury, dashing when burying, it is motionless to require tensioner to hold the salvaging rope, the shallow sea of spraying water with high pressure dashes the high-pressure injection rifle bury device toward transferring to desired depth, dashes and buries device and vertical salvaging is done towards the cable direction together towards the rolling type anchor that buries in the device in the shallow sea of spraying water with high pressure with the platform shallow sea of spraying water with high pressure in tow;
Step 7, judge that by the tension variation on the main traction machine shallow sea of spraying water with high pressure dashes the high-pressure injection rifle bury device and whether passes through cable, be wrapped with jetting gun for avoiding cable, pack up rifle, cable will slide to the rolling type anchor like this;
Step 8, cable tensioner can show whether the rolling type anchor colludes cable, after confirming that cable is colluded, tensioner is put the speed of salvaging rope and the speed that platform moves ahead is consistent, according to the depth of water, platform continue the to move ahead distance of 1～2.5 times of depth of water, the shallow sea that at this time requires simultaneously to spray water with high pressure dashes the jetting gun that buries device and is raised to apart from 0.5～2 meter of sea bed;
Step 9, the shallow sea of spraying water with high pressure dashes and to bury device and continue to proceed to after the safety distance of 1.5～2 times of depth of waters by the time, the platform that stops reclaims the shallow sea of spraying water with high pressure towards burying device until it is reclaimed upper mounting plate according to normal procedure, control platform retreats, and synchronously reclaims and salvages rope and rolling type salvaging anchor;
Step 10, platform is controlled at the vertical direction of cable, cable is hauled out from the seabed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100451787A CN101475054B (en) | 2009-01-12 | 2009-01-12 | Method for realizing deep buried cable salvage by using high pressure water spraying shallow sea bury flushing device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009100451787A CN101475054B (en) | 2009-01-12 | 2009-01-12 | Method for realizing deep buried cable salvage by using high pressure water spraying shallow sea bury flushing device |
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| CN101475054A true CN101475054A (en) | 2009-07-08 |
| CN101475054B CN101475054B (en) | 2011-04-20 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101800409A (en) * | 2010-04-12 | 2010-08-11 | 中英海底系统有限公司 | Installation method of power cable splice box |
| CN101797966A (en) * | 2010-03-23 | 2010-08-11 | 中英海底系统有限公司 | Method for refloating deeply-buried cable by utilizing three-meter deeply-buried cable mechanical refloatation anchor |
| CN102219047A (en) * | 2010-04-16 | 2011-10-19 | 中国科学院海洋研究所 | Device and method of salvaging underwater mooring system in muddy seabed |
| CN102358407A (en) * | 2011-09-19 | 2012-02-22 | 中国人民解放军海军通信应用研究所 | Seabed shearing salvaging device for undersea cable |
| CN106786228A (en) * | 2016-12-03 | 2017-05-31 | 江苏华西村海洋工程服务有限公司 | Ocean bottom cable repairing device |
| CN111239949A (en) * | 2020-03-26 | 2020-06-05 | 中邮建技术有限公司 | Submarine optical cable operation device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| FR2455235A1 (en) * | 1979-04-27 | 1980-11-21 | Coflexip | DEVICE FOR BURIKING FLEXIBLE TUBULAR CABLES OR PIPES IN THE SUBSEA |
| DE3915451A1 (en) * | 1989-05-11 | 1990-11-15 | Siemens Ag | Buried sea-bed cable salvaging appts. - has rotating spiked roller for underwater towing with side-plate cable clamps and surface indication of cable presence |
| DE19802691C1 (en) * | 1998-01-24 | 2000-02-24 | Weiss Gmbh & Co Leonhard | Salvage method for cables, leads or other comparable elongated units from ground |
| GB9917148D0 (en) * | 1999-07-22 | 1999-09-22 | Engineering Business Ltd | Improvements to submarine ploughs |
| CN1287181C (en) * | 2003-01-27 | 2006-11-29 | 中英海底系统有限公司 | Method and system for realizing shallow sea optical cable burial utilizing shoal buried plow |
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2009
- 2009-01-12 CN CN2009100451787A patent/CN101475054B/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101797966A (en) * | 2010-03-23 | 2010-08-11 | 中英海底系统有限公司 | Method for refloating deeply-buried cable by utilizing three-meter deeply-buried cable mechanical refloatation anchor |
| CN101797966B (en) * | 2010-03-23 | 2013-03-13 | 中英海底系统有限公司 | Method for refloating deeply-buried cable by utilizing three-meter deeply-buried cable mechanical refloatation anchor |
| CN101800409A (en) * | 2010-04-12 | 2010-08-11 | 中英海底系统有限公司 | Installation method of power cable splice box |
| CN102219047A (en) * | 2010-04-16 | 2011-10-19 | 中国科学院海洋研究所 | Device and method of salvaging underwater mooring system in muddy seabed |
| CN102358407A (en) * | 2011-09-19 | 2012-02-22 | 中国人民解放军海军通信应用研究所 | Seabed shearing salvaging device for undersea cable |
| CN106786228A (en) * | 2016-12-03 | 2017-05-31 | 江苏华西村海洋工程服务有限公司 | Ocean bottom cable repairing device |
| CN111239949A (en) * | 2020-03-26 | 2020-06-05 | 中邮建技术有限公司 | Submarine optical cable operation device |
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| CN101475054B (en) | 2011-04-20 |
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