CN109941399B - Anchor chain protection method for underwater arresting net - Google Patents
Anchor chain protection method for underwater arresting net Download PDFInfo
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- CN109941399B CN109941399B CN201910279795.7A CN201910279795A CN109941399B CN 109941399 B CN109941399 B CN 109941399B CN 201910279795 A CN201910279795 A CN 201910279795A CN 109941399 B CN109941399 B CN 109941399B
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- anchor chain
- underwater
- net
- cement mortar
- buoy
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- 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
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
Abstract
The invention relates to an anchor chain protection method of an underwater arresting net, which comprises the following steps: 1) before the underwater blocking net is laid under water, buoys are arranged on the anchor chain at intervals and are connected with chain links of the anchor chain through ropes; 2) after the underwater barrier net is launched, a winch on an engineering ship is used for tightening the buoy, and the buoy is confirmed to be in a vertical state, so that the position of the anchor chain is accurately judged; 3) the engineering ship is used for lowering the pouring guide pipe along the rope so as to pour cement mortar into the anchor chain position, and the self weight of the solidified cement mortar is used for preventing the anchor chain from being lifted by frogman. The invention can prevent frogman from passing through the net bottom, improve the lag time of the underwater arresting net, and strive for time for response, thereby greatly improving the protection capability.
Description
Technical Field
The invention relates to an anchor chain protection method for an underwater arresting net, and belongs to the technical field of underwater arresting.
Background
With the development of offshore equipment in China and the increasing severity of offshore safety environment, the guard protection of important targets on the sea, such as large ships, offshore drilling platforms, docks, artificial reefs, special military-use sea areas and other civil and military facilities, is very important.
Because the position of an important target on the sea is relatively fixed, key parts are more, the region range is wide, protection is carried out by an underwater protective net at present, and a counterweight anchor chain is arranged at the lower end of the underwater protective net. However, counterweight chains are typically made of metal and have limited weight because they are too heavy, which is costly and inconvenient to transport and install. Therefore, frogman can lift the anchor chain from the bottom of the protective net and then pass through the underwater protective net, and the protective capacity of the protective net is reduced.
Disclosure of Invention
The invention aims to solve the technical problems that: the method overcomes the defects of the technology and provides a method for improving the protection capability of the underwater protective net and preventing frogmans from passing through the bottom of the protective net.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: an anchor chain protection method for an underwater arresting net comprises the following steps:
1) before the underwater blocking net is laid under water, buoys are arranged on the anchor chain at intervals and are connected with chain links of the anchor chain through ropes;
2) after the underwater barrier net is launched, a winch on an engineering ship is used for tightening the buoy, and the buoy is confirmed to be in a vertical state, so that the position of the anchor chain is accurately judged;
3) the engineering ship is used for arranging the pouring guide pipe along the rope so as to pour cement mortar into the anchor chain position, and the self weight of the solidified cement mortar is used for preventing the anchor chain from being lifted by frogman.
The anchor chain is positioned through the buoy, and then cement mortar is poured into the anchor chain, so that the cement mortar is combined with the anchor chain into a whole after being solidified, and therefore frogman can be prevented from lifting the anchor chain from the bottom of the protective net and then passing through the protective net by using the weight of the cement mortar. In addition, the processed underwater arresting net can improve the delay time, strives for time for response, and greatly improves the protection capability.
In order to prevent the perfusion conduit from floating during the deepwater operation, the technical scheme is further as follows: and 3), filling water into the perfusion catheter when the perfusion catheter is placed downwards, installing a rubber ball attached to the wall of the perfusion catheter at the top of the perfusion catheter, then pouring cement mortar, and pressing the rubber ball out along the perfusion catheter to perform perfusion.
Drawings
The invention will be further explained with reference to the drawings
Fig. 1 is a schematic diagram of an embodiment of the present invention.
Fig. 2 is a schematic structural view of an underwater protective net.
Reference numerals: buoy 1, anchor chain 2, cement mortar 3, engineering ship 4, floating body 10 and protective net 20.
Detailed Description
Example one
In the underwater arresting net of this embodiment, as shown in fig. 2, the floating body 10 is provided on the top of the protection net 20, and the anchor chain 2 is provided on the bottom. The weight of the anchor chain 2 is limited, and further reinforcement of the anchor chain 2 is necessary to prevent a frogman from being able to lift the anchor chain 2 from the bottom of the protective net and then pass through the protective net 20.
The anchor chain protection method of the embodiment comprises the following steps:
1) before the underwater blocking net is laid under water, buoys 1 are arranged on an anchor chain 2 at intervals, and the buoys 1 are connected with a chain ring of the anchor chain 2 through ropes;
2) after the underwater barrier net is launched, the buoy 1 is tightened by using a winch on the engineering ship 4, and the buoy 1 is confirmed to be in a vertical state, so that the position of the anchor chain 2 is accurately judged;
3) the engineering ship 4 is used for arranging a pouring guide pipe along the rope, cement mortar 3 is poured to the position of the anchor chain 2, and the self weight of the solidified cement mortar is used for preventing the anchor chain 2 from being lifted by frogmans.
In order to prevent the filling conduit from floating during deepwater operation, in the step 3), the filling conduit can be filled with water when the filling conduit is lowered, a rubber ball which is tightly attached to the wall of the filling conduit is installed at the top of the filling conduit, cement mortar is filled in the rubber ball, and the rubber ball is pressed out along the filling conduit, so that filling can be carried out.
The present invention is not limited to the above embodiments, and the technical solutions of the above embodiments of the present invention may be combined with each other in a crossing manner to form a new technical solution, and all technical solutions formed by adopting equivalent substitutions fall within the protection scope of the present invention.
Claims (2)
1. An anchor chain protection method of an underwater arresting net is characterized by comprising the following steps:
1) before the underwater blocking net is laid under water, buoys are arranged on the anchor chain at intervals and are connected with chain links of the anchor chain through ropes;
2) after the underwater barrier net is launched, a winch on an engineering ship is used for tightening the buoy, and the buoy is confirmed to be in a vertical state, so that the position of the anchor chain is accurately judged;
3) the engineering ship is used for lowering the pouring guide pipe along the rope so as to pour cement mortar into the anchor chain position, and the self weight of the solidified cement mortar is used for preventing the anchor chain from being lifted by frogman.
2. The method of anchor chain protection of an underwater barrier net according to claim 1, wherein: and 3) filling water into the perfusion catheter when the perfusion catheter is placed downwards, installing a rubber ball attached to the wall of the perfusion catheter at the top of the perfusion catheter, then pouring cement mortar, and pressing the rubber ball out along the perfusion catheter to perform perfusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910279795.7A CN109941399B (en) | 2019-04-09 | 2019-04-09 | Anchor chain protection method for underwater arresting net |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910279795.7A CN109941399B (en) | 2019-04-09 | 2019-04-09 | Anchor chain protection method for underwater arresting net |
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| Publication Number | Publication Date |
|---|---|
| CN109941399A CN109941399A (en) | 2019-06-28 |
| CN109941399B true CN109941399B (en) | 2021-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910279795.7A Active CN109941399B (en) | 2019-04-09 | 2019-04-09 | Anchor chain protection method for underwater arresting net |
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| CN (1) | CN109941399B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113277036B (en) * | 2021-06-30 | 2021-12-10 | 重庆东登科技有限公司 | Emergency rescue indicating system for drowned people in inner lake |
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|---|---|---|---|---|
| US4688024A (en) * | 1985-04-24 | 1987-08-18 | Safe Bridge Ab | Barrier arrangement and a method for producing the same |
| CN101956393A (en) * | 2010-09-30 | 2011-01-26 | 中铁三局集团有限公司 | Construction method for pouring underwater concrete by movable end cap method |
| CN106245592A (en) * | 2016-08-29 | 2016-12-21 | 湘潭市特种线缆有限公司 | Arresting net system under water for national defence |
| CN108375320A (en) * | 2018-04-10 | 2018-08-07 | 泰州市金海运船用设备有限责任公司 | Underwater electronic arresting system |
| CN208269734U (en) * | 2018-04-10 | 2018-12-21 | 泰州市金海运船用设备有限责任公司 | Underwater electronic arresting system waterborne |
| CN109440731A (en) * | 2018-11-09 | 2019-03-08 | 中国船舶重工集团公司第七〇九研究所 | A kind of water installations security protection arresting system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5766049A (en) * | 1996-07-26 | 1998-06-16 | Letourneau; Dana | Anchor monitor and retrieval buoy |
| US6880479B2 (en) * | 2003-07-29 | 2005-04-19 | Clint Low | Inflatable anchor lift |
| CN202379057U (en) * | 2011-12-05 | 2012-08-15 | 方正国际软件有限公司 | Automatic avoidance device for channel buoys |
| CN207311774U (en) * | 2017-11-01 | 2018-05-04 | 中交天航南方交通建设有限公司 | Anchor floats and ship |
| CN207360524U (en) * | 2017-11-03 | 2018-05-15 | 浙江海洋大学东海科学技术学院 | A kind of navigation buoy |
-
2019
- 2019-04-09 CN CN201910279795.7A patent/CN109941399B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4688024A (en) * | 1985-04-24 | 1987-08-18 | Safe Bridge Ab | Barrier arrangement and a method for producing the same |
| CN101956393A (en) * | 2010-09-30 | 2011-01-26 | 中铁三局集团有限公司 | Construction method for pouring underwater concrete by movable end cap method |
| CN106245592A (en) * | 2016-08-29 | 2016-12-21 | 湘潭市特种线缆有限公司 | Arresting net system under water for national defence |
| CN108375320A (en) * | 2018-04-10 | 2018-08-07 | 泰州市金海运船用设备有限责任公司 | Underwater electronic arresting system |
| CN208269734U (en) * | 2018-04-10 | 2018-12-21 | 泰州市金海运船用设备有限责任公司 | Underwater electronic arresting system waterborne |
| CN109440731A (en) * | 2018-11-09 | 2019-03-08 | 中国船舶重工集团公司第七〇九研究所 | A kind of water installations security protection arresting system |
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| CN109941399A (en) | 2019-06-28 |
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Application publication date: 20190628 Assignee: JIANGSU DAJIN HEAVY INDUSTRY Co.,Ltd. Assignor: TAIZHOU CITY JINHAIYUN VESSEL FACILITY Co.,Ltd. Contract record no.: X2020980005077 Denomination of invention: Anchor chain protection method of underwater blocking net License type: Exclusive License Record date: 20200817 |
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