CN111585236A - Submarine cable temporary fixing device and operation method - Google Patents
Submarine cable temporary fixing device and operation method Download PDFInfo
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- CN111585236A CN111585236A CN202010440307.9A CN202010440307A CN111585236A CN 111585236 A CN111585236 A CN 111585236A CN 202010440307 A CN202010440307 A CN 202010440307A CN 111585236 A CN111585236 A CN 111585236A
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- steel pipe
- truss
- cable
- air
- fixing device
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G9/00—Installations of electric cables or lines in or on the ground or water
- H02G9/02—Installations of electric cables or lines in or on the ground or water laid directly in or on the ground, river-bed or sea-bottom; Coverings therefor, e.g. tile
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/30—Installations of cables or lines on walls, floors or ceilings
- H02G3/32—Installations of cables or lines on walls, floors or ceilings using mounting clamps
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
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Abstract
The invention relates to the technical field of submarine road engineering, in particular to a submarine cable temporary fixing device and an operation method. By adopting the structure, the cable is hung on the steel pipe truss through the hanging component, the steel pipe truss is fastened on the steel pipe pile through the fastening component, the gravity of the cable is offset by utilizing the floating force of the steel pipe truss, the cable is fixed on the seabed (the cable is prevented from sinking), and the cable fixing device is simple in structure and convenient to operate.
Description
Technical Field
The invention relates to the technical field of submarine road engineering, in particular to a submarine cable temporary fixing device and an operation method.
Background
Most of the submarine road engineering adopts a shield construction technology, and when construction deviation occurs, harmful factors such as surface subsidence can occur in the shield construction technology. For submarine cables with crossed submarine shield tunnels, if settlement deformation occurs, serious consequences can occur, and cable fixing measures need to be taken before underground passage construction, but good cable fixing measures are not available at present. Because the influence scope of shield construction to ground is big, the fixed support point should keep away from the shield pipeline, if adopt the structure thing to fix, then the structure thing needs to have very big rigidity, therefore weight can be very big, does not operate well.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a submarine cable temporary fixing device and an operation method, which effectively solve the problems in the prior art.
In order to achieve the purpose, the technical scheme applied by the invention is as follows:
the utility model provides a submarine cable temporary fixing device, includes steel-pipe pile, steel pipe truss and cable, and the cable is hung on the steel pipe truss through hanging the subassembly, and the steel pipe truss is set up on the steel-pipe pile through setting up the subassembly, and the steel-pipe pile is fixed in the seabed soil horizon.
According to the scheme, the fastening assembly comprises an upper hoop and a lower hoop, the upper portion of the steel pipe truss is fixed on the steel pipe pile through the upper hoop, and the lower portion of the steel pipe truss is fixed on the steel pipe pile through the lower hoop.
According to above scheme, hang the subassembly and include cable clamp and lifting rope, the cable clamp is used for cliping the cable, and lifting rope one end is fixed in on the cable clamp, and the lifting rope other end hangs on the steel pipe truss.
According to the scheme, the steel pipe truss comprises a first upper steel pipe, a second upper steel pipe, a first lower steel pipe and a second lower steel pipe which are arranged in a closed structure, the first upper steel pipe and the second upper steel pipe are fixedly connected through transverse connecting rods and are communicated with each other inside, the first lower steel pipe and the second lower steel pipe are fixedly connected through transverse connecting rods and are communicated with each other inside, the first upper steel pipe and the first lower steel pipe are fixedly connected through vertical connecting rods and are communicated with each other inside, the second upper steel pipe and the second lower steel pipe are fixedly connected through vertical connecting rods, and the two adjacent vertical connecting rods are fixedly connected through oblique connecting rods and are communicated with each other inside.
According to the scheme, the air holes are formed in the first upper steel pipe and the second upper steel pipe, the air holes are externally connected with an air compressor and a gauge through air pipes, and the water holes are formed in the bottom of the first lower steel pipe and the bottom of the second lower steel pipe.
According to the scheme, the steel pipe truss is divided into three sections according to the length, the three sections comprise a first truss, a second truss and a third truss which are independent bodies respectively, and two adjacent groups of trusses are fixedly connected through bolts.
A method of operating a submarine cable temporary fixation device, comprising the steps of:
step 1), pre-processing a steel pipe pile, a steel pipe truss, an upper anchor ear, a lower anchor ear and a cable clamp in a factory;
step 2), driving the steel pipe pile to a preset depth at a preset position by using pile driving equipment;
step 3), hoisting the processed steel pipe truss on the water surface of the installation position, and splicing the first truss, the second truss and the third truss into a whole by using bolts on the water surface under the condition of blocking the air pipe;
step 4), under the coordination of a floating crane, the restraint of an air pipe is opened, seawater is poured into the steel pipe from water holes on a first lower steel pipe and a second lower steel pipe, the air displacement is calculated, the self weight of the steel pipe truss is guaranteed to be slightly larger than the floating force borne by the steel pipe truss, and the steel pipe truss is placed among four steel pipe piles under the coordination of the floating crane;
and 5), clamping the cable by using a cable clamp by a diver, connecting the cable clamp to the transverse connecting rod of the steel pipe truss by using a lifting rope, and keeping each lifting rope in a tightened state.
And 6) injecting air into the first truss, the second truss and the third truss through air pipes by using an air compressor, so that water in the first truss, the second truss and the third truss is extruded out, the steel pipe truss integrally generates large buoyancy force, the generated buoyancy force can be obtained by calculating the amount of added air, air filling is stopped when the buoyancy force is equivalent to the gravity of the cable, and the air filling pipes are locked.
And 7), submerging the underwater vehicle to enable the upper anchor ear and the lower anchor ear to be tightly attached to the steel pipe truss and fixedly locked on the steel pipe pile, and then releasing the control of the floating crane on the steel pipe truss.
The invention has the beneficial effects that:
1) the cable is fixed on the seabed through the matching of the steel pipe pile and the steel pipe truss;
2) the steel pipes of the steel pipe truss are tightly held on the steel pipe piles for fixing through the upper anchor ear and the lower anchor ear, and the steel pipe truss is very convenient to mount and dismount;
3) the cable is clamped by the cable clamp and then positioned on the steel pipe truss by the lifting rope, so that the purpose of suspending and positioning the cable on the steel pipe truss is achieved, and the operation is convenient;
4) the purpose of aerating and draining the interior of the steel pipe can be achieved through the air holes, the weight of the steel pipe truss and the weight of the cable are offset by the buoyancy of water, the gravity of the steel pipe truss and the weight of the cable are offset by the buoyancy, the stress of the steel pipe truss becomes very small, and the span can be enlarged to be very large; the purpose of adding water and sinking and draining and floating inside the steel pipe can be achieved through the water holes, the gravity of the steel pipe truss and the cable is offset by utilizing buoyancy, the stress of the steel pipe truss becomes very small, and the span can be enlarged to a large extent.
Drawings
FIG. 1 is a front view of the overall structure of the present invention;
FIG. 2 is a side view of the overall structure of the present invention;
FIG. 3 is a schematic view of the steel pipe truss structure of the present invention;
FIG. 4 is an enlarged view of the location A in FIG. 2;
FIG. 5 is an enlarged view of the position B in FIG. 2;
fig. 6 is a schematic view of the assembly of the steel pipe truss of the present invention.
1. A connecting flange; 2. steel pipe piles; 3. steel pipe truss; 31. a first truss; 32. a second truss; 33. a third truss; 4. a transverse connecting rod; 5. a vertical connecting rod; 6. an oblique connecting rod; 7. an anchor ear is arranged; 8. a lower hoop; 9. a cable; 10. a cable clamp; 11. a lifting rope; 12. an air tube; 13. air holes; 14. a water pore; 15. feeding a first steel pipe; 16. feeding a steel pipe II; 17. a first lower steel pipe; 18. and (5) discharging a second steel pipe.
Detailed Description
The technical solution of the present invention is described below with reference to the accompanying drawings and examples.
As shown in fig. 1 to 6, the temporary submarine cable fixing device according to the present invention includes a steel pipe pile 2, a steel pipe truss 3, and a cable 9, wherein the cable 9 is suspended on the steel pipe truss 3 by a suspension assembly, the steel pipe truss 3 is fastened to the steel pipe pile 2 by a fastening assembly, and the steel pipe pile 2 is fixed in a seabed soil layer. By adopting the structure, the cable 9 is hung on the steel pipe truss 3 through the hanging component, the steel pipe truss 3 is fastened on the steel pipe pile 2 through the fastening component, the gravity of the cable 9 is offset by utilizing the floating force of the steel pipe truss 3, the effect of fixing the cable 9 on the seabed (preventing the cable 9 from sinking) is realized, the structure is simple, and the operation is convenient.
In this embodiment, the number of the steel pipe piles 2 is four, two of the steel pipe piles are arranged at the front end of the steel pipe truss 3, the other two steel pipe piles are arranged at the rear end of the steel pipe truss 3, and the distance between the steel pipe piles 2 arranged at the front end and the rear end of the steel pipe truss 3 needs to meet the requirement of placing the steel pipe truss 3 between holes.
In this embodiment, the fastening assembly includes an upper anchor ear 7 and a lower anchor ear 8, the upper portion of the steel pipe truss 3 is fixed on the steel pipe pile 2 through the upper anchor ear 7, and the lower portion of the steel pipe truss 3 is fixed on the steel pipe pile 2 through the lower anchor ear 8. Adopt such structure setting, hold tightly the steel pipe of steel pipe truss 3 on steel-pipe pile 2 through last staple bolt 7 and lower staple bolt 8 and fix, it is all very convenient with the dismantlement to install.
In practical application, the position of the steel pipe truss 3 on the steel pipe pile 2 can be conveniently adjusted by adopting a fixing mode of the hoop. During the operation, only need to unscrew the staple bolt can realize, the operation is more convenient.
In this embodiment, the hanging assembly comprises a cable clamp 10 and a lifting rope 11, the cable clamp 10 is used for clamping the cable 9, one end of the lifting rope 11 is fixed on the cable clamp 10, and the other end of the lifting rope 11 is hung on the steel pipe truss 3. By adopting the structure, the cable 9 is clamped by the cable clamp 10 and then positioned on the steel pipe truss 3 by the lifting rope 11, so that the purpose of suspending and positioning the cable 9 on the steel pipe truss 3 is realized.
In this embodiment, steel pipe truss 3 includes last steel pipe one 15 that the enclosed construction set up, go up steel pipe two 16, steel pipe one 17 and steel pipe two 18 down, go up through transverse connection rod 4 fixed connection between steel pipe one 15 and the last steel pipe two 16, and inside intercommunication, pass through transverse connection rod 4 fixed connection between steel pipe one 17 and the lower steel pipe two 18 down, and inside intercommunication, go up through 5 fixed connection of vertical connecting rod between steel pipe one 15 and the lower steel pipe one 17, and inside intercommunication, go up through 5 fixed connection of vertical connecting rod between steel pipe two 16 and the lower steel pipe two 18, pass through slant connecting rod fixed connection between two adjacent vertical connecting rod 5, and inside intercommunication. By adopting the structure, the steel pipe is communicated with the inside to form a hollow state, and the water can be added into the steel pipe to sink and drained to float.
In practical application, the cable 9 is hung on the transverse connecting rod 4 between the first lower steel pipe 17 and the second lower steel pipe 18 through the hanging component,
in this embodiment, the first upper steel pipe 15 and the second upper steel pipe 16 are provided with air holes 13, the air holes 13 are externally connected with an air compressor and a meter through an air pipe 12, and the bottoms of the first lower steel pipe 17 and the second lower steel pipe 18 are provided with water holes 14. By adopting the structure, the purpose of aerating and draining the inside of the steel pipe can be realized through the air holes 13, the weight of the steel pipe truss 3 and the cable 9 is offset by the buoyancy of water, and the purposes of adding water to the inside of the steel pipe to sink and floating the drained water can be realized through the water holes 14.
In practical application, the buoyancy is utilized to offset the gravity of the steel pipe truss 3 and the cable 9, the stress of the steel pipe truss 3 becomes very small, and the span can be enlarged to be very large;
it should be noted that the buoyancy is used to cancel the gravity of the steel pipe truss 3 and the cable 9, so that the stress of the steel pipe truss 3 is reduced and the span can be increased to a large extent.
In this embodiment, the steel pipe truss 3 is divided into three sections according to length, each of the three sections includes a first truss 31, a second truss 32, and a third truss 33, each of the three sections is an independent body, and two adjacent truss sections are fixedly connected by bolts. By adopting the structure, the installation and the disassembly are very convenient.
In practical application, the length of the steel pipe truss 3 can be adjusted according to the position of the steel pipe pile 2.
In practical application, the end parts of the first truss 31, the second truss 32 and the third truss 33 are all provided with the connecting flange 1.
A method of operating a submarine cable temporary fixation device, comprising the steps of:
step 1), a steel pipe pile 2, a steel pipe truss 3, an upper anchor ear 7, a lower anchor ear 8 and a cable clamp 10 are processed in advance in a factory;
step 2), driving the steel pipe pile 2 to a preset depth at a preset position by using a piling device;
step 3), hoisting the processed steel pipe truss 3 to the water surface of the installation position, and splicing the first truss 31, the second truss 32 and the third truss 33 into a whole by using bolts on the water surface under the condition of blocking the air pipe 12;
step 4), under the coordination of a floating crane, the restraint of an air pipe 12 is opened, seawater is poured into the steel pipe from water holes 14 on a first lower steel pipe 17 and a second lower steel pipe 18, the air displacement is calculated, the self weight of the steel pipe truss 3 is guaranteed to be slightly larger than the floating force borne by the steel pipe truss 3, and the steel pipe truss is placed among the four steel pipe piles 2 under the coordination of the floating crane;
and 5), clamping the cable 9 by using a cable clamp 10 by a diver, connecting the cable clamp 10 to the transverse connecting rod 4 of the steel pipe truss 3 by using a lifting rope 11, and enabling each lifting rope 11 to be in a tightened state.
And 6) injecting air into the first truss 31, the second truss 32 and the third truss 33 through the air pipes 12 by using an air compressor in a balanced manner, so that water in the first truss 31, the second truss 32 and the third truss 33 is extruded out, the steel pipe truss 3 integrally generates a large buoyancy force, the generated buoyancy force can be obtained by calculating the amount of the added air, air filling is stopped when the buoyancy force is equivalent to the gravity of the cable, and the air filling pipes are locked.
And 7), submerging the steel pipe truss 3, enabling the upper anchor ear 7 and the lower anchor ear 8 to be attached to the steel pipe pile 2 in a close locking mode, and then releasing the control of the floating crane on the steel pipe truss 3.
While the embodiments of the present invention have been described, the present invention is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and those skilled in the art can make various modifications without departing from the spirit and scope of the present invention as defined by the appended claims.
Claims (7)
1. A submarine cable temporary fixing device which is characterized in that: the cable-hanging device comprises a steel pipe pile (2), a steel pipe truss (3) and a cable (9), wherein the cable (9) is hung on the steel pipe truss (3) through a hanging assembly, the steel pipe truss (3) is fastened on the steel pipe pile (2) through a fastening assembly, and the steel pipe pile (2) is fixed in a seabed soil layer.
2. A submarine cable temporary fixing device according to claim 1, wherein: the fastening assembly comprises an upper hoop (7) and a lower hoop (8), the upper part of the steel pipe truss (3) is fixed on the steel pipe pile (2) through the upper hoop (7), and the lower part of the steel pipe truss (3) is fixed on the steel pipe pile (2) through the lower hoop (8).
3. A submarine cable temporary fixing device according to claim 1, wherein: hang the subassembly and include cable clamp (10) and lifting rope (11), cable clamp (10) are used for cliping cable (9), lifting rope (11) one end is fixed in on cable clamp (10), lifting rope (11) other end hangs on steel pipe truss (3).
4. A submarine cable temporary fixing device according to claim 2, wherein: the steel pipe truss (3) comprises an upper steel pipe I (15), an upper steel pipe II (16), a lower steel pipe I (17) and a lower steel pipe II (18) which are arranged in a closed structure, wherein the upper steel pipe I (15) and the upper steel pipe II (16) are fixedly connected through a transverse connecting rod (4) and are communicated with each other inside, the lower steel pipe I (17) and the lower steel pipe II (18) are fixedly connected through the transverse connecting rod (4) and are communicated with each other inside, the upper steel pipe I (15) and the lower steel pipe I (17) are fixedly connected through a vertical connecting rod (5) and are communicated with each other inside, the upper steel pipe II (16) and the lower steel pipe II (18) are fixedly connected through the vertical connecting rod (5), and the two adjacent vertical connecting rods (5) are fixedly connected through an oblique connecting rod and are communicated with each other inside.
5. A submarine cable temporary fixing device according to claim 4, wherein: go up steel pipe one (15) and be equipped with gas pocket (13) on steel pipe two (16), gas pocket (13) are external through trachea (12) have air compressor machine and strapping table, steel pipe one (17) bottom is equipped with water hole (14) with steel pipe two (18) bottom down.
6. A submarine cable fixing device according to claim 2, wherein: the steel pipe truss (3) is divided into three sections according to length, the three sections comprise a first truss (31), a second truss (32) and a third truss (33), each of the three sections is an independent body, and two adjacent groups of trusses are fixedly connected through bolts.
7. A method of operating a submarine cable temporary fixation device according to any one of claims 1-6, comprising the steps of:
step 1), a steel pipe pile (2), a steel pipe truss (3), an upper anchor ear (7), a lower anchor ear (8) and a cable clamp (10) are pre-processed in a factory;
step 2), driving the steel pipe pile (2) to a preset depth at a preset position by using a piling device;
step 3), hoisting the processed steel pipe truss (3) to the water surface of the installation position, and splicing the first truss (31), the second truss (32) and the third truss (33) into a whole by using bolts on the water surface under the condition that the air pipe (12) is blocked;
step 4), under the coordination of a floating crane, the restraint of an air pipe (12) is opened, seawater is poured into the steel pipe from water holes (14) on a lower steel pipe I (17) and a lower steel pipe II (18), the air displacement is calculated, the self weight of the steel pipe truss (3) is guaranteed to be slightly larger than the floating force borne by the steel pipe truss (3), and the steel pipe truss is placed among four steel pipe piles (2) under the coordination of the floating crane;
and 5), clamping the cable (9) by using a cable clamp (10) by a diver, connecting the cable clamp (10) to the transverse connecting rod (4) of the steel pipe truss (3) by using a lifting rope (11), and enabling each lifting rope (11) to be in a tightening state.
And 6), uniformly injecting air into the first truss (31), the second truss (32) and the third truss (33) through the air pipes (12) by using an air compressor, so that water in the first truss (31), the second truss (32) and the third truss (33) is extruded out, the steel pipe truss (3) integrally generates a large buoyancy force, the generated buoyancy force can be obtained by calculating the amount of the added air, air filling is stopped when the buoyancy force is equivalent to the gravity of the cable, and the air filling pipes are locked.
And 7), submerging personnel to attach the upper anchor ear (7) and the lower anchor ear (8) to the steel pipe truss (3) and lock the steel pipe truss (3) on the steel pipe pile (2), and then releasing the control of the floating crane on the steel pipe truss (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010440307.9A CN111585236A (en) | 2020-05-22 | 2020-05-22 | Submarine cable temporary fixing device and operation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010440307.9A CN111585236A (en) | 2020-05-22 | 2020-05-22 | Submarine cable temporary fixing device and operation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111585236A true CN111585236A (en) | 2020-08-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010440307.9A Pending CN111585236A (en) | 2020-05-22 | 2020-05-22 | Submarine cable temporary fixing device and operation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111585236A (en) |
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2020
- 2020-05-22 CN CN202010440307.9A patent/CN111585236A/en active Pending
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