CN116927163A - Deep water wave compensation type seabed CPT probe rod centralizing, disassembling and connecting method - Google Patents
Deep water wave compensation type seabed CPT probe rod centralizing, disassembling and connecting method Download PDFInfo
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- CN116927163A CN116927163A CN202210345109.3A CN202210345109A CN116927163A CN 116927163 A CN116927163 A CN 116927163A CN 202210345109 A CN202210345109 A CN 202210345109A CN 116927163 A CN116927163 A CN 116927163A
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Abstract
The invention provides a method for righting, disassembling and connecting a deep water wave compensation type seabed CPT probe rod, which adopts an artificial bionic mode, uses a set of wave compensator and two rapid clamps alternately upwards and downwards to respectively pull up the rapid clamps through the wave compensator, rapidly releases the probe rod to move up or down to a designated position and then clamps the probe rod, and simulates a mode of alternately winding and unwinding a cable rope by hands under a ship body wave fluctuation state to realize righting, winding and unwinding of the probe rod; the wave compensator is connected with the two quick clamps through the two steel wire ropes respectively, and the wave compensator applies constant acting force to the two quick clamps respectively; the quick clamp holder is used for realizing quick clamping and quick loosening of the probe rod with the data wire. The invention effectively solves the problems of centralizing, disassembling and connecting the CPT probe rod on the sea with the water depth of more than 25m, has simple structure, reliable method, small occupied area and low cost, can greatly increase the use water depth and sea area of the CPT on the sea bed, and has obvious economic benefit.
Description
Technical Field
The invention relates to a method for righting, dismantling and connecting a deep water wave compensation type seabed CPT probe rod, which is suitable for the field of offshore in-situ testing.
Background
The seabed static sounding is integrated with static sounding equipment on a host, the static sounding host is placed on the surface of the seabed, and the dead weight of the host is utilized to carry out static sounding operation integrated equipment, namely seabed CPT, which is widely applied to the field of ocean engineering in-situ test at present.
When the seabed CPT works, the host is positioned on the seabed surface, the static probe rod extends from the ship body to the host, the probe rod is continuously pressed into the stratum during the operation, the stratum is continuously pulled out of the probe rod after the operation is finished, workers are required to assemble and disassemble the probe rod continuously on the ship, the length of the probe rod is shorter in a shallow water environment with the depth of less than 20 water, and the probe rod can be disassembled and connected smoothly by means of the strength of the probe rod and the manual or simple binding mode of the workers; after the water depth is greater than 25m, the probe rod is suspended too long, the downward pulling force can reach 200-400 kg due to water flow impact, the maximum fluctuation range can reach 1-2 m all the time in a fluctuation state of being neglected to be high, a cable is arranged in the middle of the probe rod to be protected, the difficulty and the danger of connecting and disconnecting the probe rod are self-evident, the conventional mode cannot work at all, and the problem is solved.
Disclosure of Invention
The invention aims to solve the problems, and provides a method for righting, dismounting and connecting a deep water wave compensation type seabed CPT probe rod, which is used for solving the difficult problems of dismounting and connecting the seabed CPT when the water depth is greater than 25 m.
For this purpose, the above object of the present invention is achieved by the following technical solutions:
the method for righting, dismounting and connecting the deep water wave compensation type seabed CPT probe rod is used for offshore in-situ test and is characterized in that: the artificial bionic mode is adopted, a set of wave compensator and two rapid clamps which are alternately arranged up and down are used for respectively pulling up the rapid clamps through the wave compensator, and the rapid clamps are moved up or down to a designated position to be clamped after the probe rod is rapidly released, so that the mode of alternately winding and unwinding the cable rope by both hands under the ship body wave fluctuation state is simulated, and the probe rod is righted, lifted up and lowered down is realized;
the wave compensator is connected with the two quick clamps through the two steel wire ropes respectively, and the wave compensator applies constant acting force to the two quick clamps respectively;
the quick clamp holder is used for realizing quick clamping and quick loosening of the probe rod with the data wire.
The invention can also adopt or combine the following technical proposal when adopting the technical proposal:
as a preferable technical scheme of the invention: the wave compensator comprises a main frame, a double pulley is erected at one end of the main frame, two electric winches are erected at the other end of the main frame, the electric winches are connected with a quick clamp holder through a steel wire rope respectively, the steel wire rope is erected on the double pulley, and a common balancing weight is hung on the steel wire rope between the electric winches and the double pulley.
As a preferable technical scheme of the invention: a set of pulley blocks is arranged above each balancing weight, and each pulley block comprises a front fixed pulley, a rear fixed pulley and a movable pulley arranged between the front fixed pulley and the rear fixed pulley; the front fixed pulley is close to the double pulleys, the rear fixed pulley is close to the electric winch, and the front fixed pulley and the rear fixed pulley are used for changing the extending direction of the steel wire rope; the movable pulley is arranged on the steel wire rope, and the movable pulley is downwards provided with a lifting hook for hanging the balancing weight.
As a preferable technical scheme of the invention: the balancing weight slides up and down on the balancing weight sliding rail, the balancing weight sliding rail is erected on the main frame, and wave compensation is realized by passive up and down movement of the balancing weight along the balancing weight sliding rail; the balancing weight slide rail can prevent the balancing weight from swinging under the influence of sea waves, and the length of the balancing weight slide rail is adjusted to compensate the height.
As a preferable technical scheme of the invention: the balancing weight is split, and the compensation force can be adjusted according to the requirement.
As a preferable technical scheme of the invention: the main frame includes a vertical shaft, an angled boom, and a tension bar, the length of which can be adjusted to raise or lower the angled boom or to change the working radius.
As a preferable technical scheme of the invention: the main frame is erected on the rotating seat, and the rotating seat can drive the main frame to realize 360-degree rotation.
As a preferable technical scheme of the invention: the wave compensator is internally provided with an electric cabinet and a wireless remote controller, the electric cabinet is electrically connected with the electric winch, the wireless remote controller is used for controlling the electric winch to avoid mutual interference of cables, and the magnetic connection protector is arranged below a button handle of the remote controller to prevent misoperation.
As a preferable technical scheme of the invention: the quick clamp holder comprises two semicircular chucks, the two semicircular chucks are connected through a rotating shaft, a rotating handle is arranged on one semicircular chuck, the rotating handle can rotate on the semicircular chuck, a connecting groove and a handle diagonal brace arranged near the connecting groove are arranged on the other semicircular chuck, and the connecting groove and the handle diagonal brace form a locking for the rotating handle so that the two semicircular chucks can tightly hold a probe rod provided with a data line.
As a preferable technical scheme of the invention: the radian of the semicircular chuck is slightly larger than that of the probe rod, the semicircular chuck is convenient to release and is quickly separated from the probe rod, and the friction force is increased by threads in the semicircular chuck.
As a preferable technical scheme of the invention: and the semicircular chuck is provided with a lifting lug, and the lifting lug is used for connecting the steel wire rope so that the vertical section of the steel wire rope is kept at a certain distance from the probe rod.
As a preferable technical scheme of the invention: the side of semicircle chuck is equipped with the structure strengthening rib.
As a preferable technical scheme of the invention: the handle adjusting nut is arranged at the joint of the rotary handle and the semicircular chuck, and the tightness of the handle adjusting nut can adjust the clasping degree between the two semicircular chucks.
The invention provides a method for righting, dismantling and connecting a deep water wave compensation type seabed CPT probe rod, which has the following beneficial effects:
the problems of centralizing, disassembling and connecting the CPT probe rod on the sea with the water depth of more than 25m are effectively solved, the structure is simple, the method is reliable, the occupied area is small, the cost is low, the use water depth and the sea area of the CPT on the sea bed can be greatly increased, and the economic benefit is obvious.
Drawings
Fig. 1 is a diagram showing the connection of a wave compensator and a quick clamp according to the present invention.
Fig. 2 is a top view of a wave compensator provided by the present invention.
Fig. 3 is a front view of the quick clamp provided by the present invention.
Fig. 4 is a top view of the quick clamp provided by the present invention.
Detailed Description
The invention will be described in further detail with reference to the drawings and specific embodiments.
The invention adopts the following thought: the artificial bionic device is characterized in that a set of wave compensator and two rapid clamps are used for simulating the mode of manually winding and unwinding the cable rope under the wave fluctuation state of the ship body, so that the probe rod is righted, wound and unwound. The wave compensator simulates arm stretching and bending through up and down movement of the counterweight to carry out wave compensation; the output of different tensile forces is realized by adjusting the weight of the weight; simulating double-hand rapid grasping and loosening of the probe rod through the rapid clamp holder; the two holders are cyclically alternated, so that the probe rod can be continuously moved upwards or downwards by the acting point (the hand-held point) of the probe rod, and the probe rod is always lifted.
The method for righting, dismantling and connecting the deep water wave compensation type seabed CPT probe rod 8 is used for offshore in-situ test, adopts an artificial bionic mode, uses a set of wave compensator 1 and two quick clamps 7 which are arranged up and down to respectively pull up the quick clamps 7 through the wave compensator 1 and quickly loosen the probe rod to a designated position up or down and then clamp the probe rod, simulates the mode of two hands retracting and releasing a cable rope under a ship body wave fluctuation state, and realizes righting, retracting and releasing of the probe rod 8;
the wave compensator 1 is respectively connected with the two quick clamps 7 through two steel wire ropes 35, and the wave compensator 1 alternately applies constant acting force to the two quick clamps 7;
the quick clamp holder 7 is used for realizing quick clamping and quick loosening of the probe rod 8 with the data wire 9.
The wave compensator 1 comprises a main frame, a double pulley 34 is erected at one end of the main frame, two electric winches 2 are erected at the other end of the main frame, the electric winches 2 and the quick clamp 7 are respectively connected through a steel wire rope 35, the steel wire rope 35 is erected on the double pulley 34, and a common balancing weight 41 is hung on the steel wire rope 35 between the electric winches 2 and the double pulley 34.
A set of pulley blocks is arranged above the balancing weight 41, and each pulley block comprises a front fixed pulley 31, a rear fixed pulley 32 and a movable pulley 33 arranged between the front fixed pulley and the rear fixed pulley; the front fixed pulley 31 is close to the double pulleys 34, the rear fixed pulley 32 is close to the electric winch 2, and the front fixed pulley 31 and the rear fixed pulley 32 are used for changing the extending direction of the steel wire rope 35; the movable pulley 33 is disposed on the wire rope 35, and the movable pulley 33 is provided with a hook downward to hang the weight 41.
The balancing weight 41 slides up and down on the balancing weight sliding rail 42, the balancing weight sliding rail 42 is erected on the main frame, and wave compensation is realized by passive up and down movement of the balancing weight 41 along the balancing weight sliding rail 42; the balancing weight slide rail 42 can prevent the balancing weight 41 from swinging under the influence of sea waves, and the length of the balancing weight slide rail 42 is adjusted to adjust the compensation height.
The counterweight 41 is detachable, and can adjust the compensation force according to the requirement.
The main frame comprises a vertical shaft 11, an inclined boom 12 and a pull rod 13, and the length of the pull rod 13 can be adjusted to raise or lower the inclined boom 12 or change the working radius.
The main frame is arranged on the rotating seat 51, and the rotating seat 51 can drive the main frame to realize 360-degree rotation.
The wave compensator 1 is internally provided with an electric cabinet 6 and a wireless remote controller, the electric cabinet 6 is electrically connected with the electric winch 2, the wireless remote controller is used for controlling the electric winch 2 to avoid mutual interference of cables, and a magnetic connection protector is arranged below a button handle of the remote controller to prevent misoperation.
The quick clamp holder 7 comprises two semicircular chucks 71, the two semicircular chucks 71 are connected through a rotating shaft 73, the rotating shaft 73 is fastened through a rotating shaft nut 74, a rotating handle 77 is arranged on one semicircular chuck 71, the rotating handle 77 can rotate on the semicircular chuck 71, a connecting groove 79 and a handle diagonal support 76 arranged near the connecting groove 79 are arranged on the other semicircular chuck 71, and the connecting groove 79 and the handle diagonal support 76 form locking of the rotating handle 77 so that the two semicircular chucks 71 hold a probe rod 8 provided with a data wire 9 tightly.
During clamping, the two semicircular chucks 71 encircle the probe rod 8, the rotary handle 77 is pulled into the connecting groove 79 of the other semicircular chuck 71, then the rotary handle is rotated by 90 degrees, and the handle 77 is gradually propped against the gradient of the handle diagonal brace 76 so that the two semicircular chucks 71 clamp the probe rod 8; when the rotary handle 77 is loosened, the two semicircular chucks 71 are automatically loosened by reversely rotating the rotary handle 90 degrees, and the quick clamping and quick loosening of the probe rod 8 are realized in the fastest way.
The radian of the semicircular chuck 71 is slightly larger than that of the probe rod 8, so that the probe rod is convenient to release quickly, and the friction is increased by threads in the semicircular chuck 71.
The semicircular chuck 71 is provided with a lifting lug 72, and the lifting lug 72 is used for connecting the steel wire rope 35 so that the vertical section of the steel wire rope 35 is kept at a certain distance from the probe rod 8.
The side of the semi-circular chuck 71 is provided with structural reinforcing ribs 75.
The handle adjusting nut 78 is arranged at the joint of the rotating handle 77 and the semicircular chuck 71, and the handle adjusting nut 78 can be loosened to adjust the clasping degree between the two semicircular chucks 71.
Specifically, the method is implemented by the following steps:
and in the first step, the seabed CPT host is hoisted into the sea.
And secondly, sequentially connecting and installing the probe rod 8 until the probe rod 8 is gradually inclined and a large pull-down force appears, and generally, the probe rod 8 enters water at about 20 and m in the CPT host on the seabed.
Third, the positioning screw 52 of the rotating seat 51 is loosened, the wave compensator 1 is rotated to be right above the probe rod 8, the positioning screw 52 is screwed, and the positioning screw 52 is used for fixing the rotating seat 51.
And fourthly, the probe rod 8 is clamped by using the 1# quick clamp holder 7, and the 1# electric winch 2 is controlled to tighten the 1# steel wire rope 35, so that the balancing weight 41 is lifted to the middle position of the track 42.
And fifthly, continuously lowering the seabed CPT host and installing the probe rod 8, slowly lifting the balancing weight 41 along with the lowering of the host, and controlling the 1# electric winch to slowly release the 1# steel wire rope, so that the balancing weight 41 is always kept at the middle position of the balancing weight track 42.
Sixth, when the 1# quick clamp holder 7 descends to the lower limit of the height with controllable arms, the 2# quick clamp holder 7 is used for clamping the probe rod 8 at the upper limit of the height with controllable arms, the 2# electric winch 2 is controlled to tighten the 2# steel wire rope 35 until the 2# quick clamp holder replaces the 1# quick clamp holder 7 to bear force, the probe rod 8 is loosened after the 1# quick clamp holder 7 is completely released from the pulling force, the upward movement of the acting point of the probe rod 8 is completed, the seabed CPT host is continuously lowered, and the probe rod is installed.
Seventh, the probe rod 8 is clamped by the 1# and 2# rapid clamps 7 alternately, so that the clamping points are continuously moved upwards, when the seabed CPT main machine contacts the seabed surface, the main hoisting steel wire rope is not stressed any more, the main machine and the probe rod 8 are separated from the ship body, at the moment, the ship body can rapidly and severely fluctuate (when taking the ship as a reference object, people see the probe rod 8 to rapidly and severely fluctuate), the balancing weight 41 of the wave compensator 1 can continuously slide up and down along with the ship body, wave compensation is performed passively, and the electric winch 2 is controlled to enable the fluctuation center of the balancing weight 41 to be always kept near the middle position of the track 42.
And eighth, starting the host, starting to penetrate the probe and the probe rod 8 at the speed of 2cm/s, continuously and alternately using the two rapid clamps 7 to tighten the probe rod 8, and continuously installing the probe rod 8 until the penetration is finished.
And ninth, after the static probe hole is completed, the wave compensator 1 and the quick clamp 7 are continuously used for lifting and disassembling the probe rod 8, and the disassembly and the assembly processes are just opposite, so that the reverse operation is required for the processes.
And tenth, when the pulling force of the probe rod 8 is reduced to be self-stable, the wave compensator is reset, and the probe rod 8 is continuously recovered until the seabed CPT is hoisted to the deck.
The above detailed description is intended to illustrate the present invention by way of example only and not to limit the invention to the particular embodiments disclosed, but to limit the invention to the precise embodiments disclosed, and any modifications, equivalents, improvements, etc. that fall within the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The method for righting, dismounting and connecting the deep water wave compensation type seabed CPT probe rod is used for offshore in-situ test and is characterized in that: the artificial bionic mode is adopted, a set of wave compensator and two rapid clamps which are alternately arranged up and down are used for respectively pulling up the rapid clamps through the wave compensator, and the rapid clamps are moved up or down to a designated position to be clamped after the probe rod is rapidly released, so that the mode of alternately winding and unwinding the cable rope by both hands under the ship body wave fluctuation state is simulated, and the probe rod is righted, lifted up and lowered down is realized;
the wave compensator is connected with the two quick clamps through the two steel wire ropes respectively, and the wave compensator applies constant acting force to the two quick clamps respectively;
the quick clamp holder is used for realizing quick clamping and quick loosening of the probe rod with the data wire.
2. The deepwater wave compensated seabed CPT probe rod righting and dismantling method according to claim 1, which is characterized in that: the wave compensator comprises a main frame, a double pulley is erected at one end of the main frame, two electric winches are erected at the other end of the main frame, the electric winches are connected with a quick clamp holder through a steel wire rope respectively, the steel wire rope is erected on the double pulley, and a common balancing weight is hung on the steel wire rope between the electric winches and the double pulley.
3. The deepwater wave compensated seabed CPT probe rod righting and dismantling method according to claim 2, which is characterized in that: a set of pulley blocks is arranged above each balancing weight, and each pulley block comprises a front fixed pulley, a rear fixed pulley and a movable pulley arranged between the front fixed pulley and the rear fixed pulley; the front fixed pulley is close to the double pulleys, the rear fixed pulley is close to the electric winch, and the front fixed pulley and the rear fixed pulley are used for changing the extending direction of the steel wire rope; the movable pulley is arranged on the steel wire rope, and the movable pulley is downwards provided with a lifting hook for hanging the balancing weight.
4. A method for righting and dismantling a deep water wave compensation type seabed CPT probe rod according to claim 2 or 3, which is characterized in that: the balancing weight slides up and down on the balancing weight sliding rail, and the balancing weight sliding rail is erected on the main frame.
5. The deepwater wave compensated seabed CPT probe rod righting and dismantling method according to claim 2, which is characterized in that: the main frame includes a vertical shaft, an angled boom, and a tension bar, the length of which can be adjusted to raise or lower the angled boom or to change the working radius.
6. The method for righting and dismounting the deep water wave compensation type seabed CPT probe rod according to claim 2 or 5, which is characterized in that: the main frame is erected on the rotating seat, and the rotating seat can drive the main frame to realize 360-degree rotation.
7. The deepwater wave compensated seabed CPT probe rod righting and dismantling and connecting method according to claim 1 or 2, which is characterized in that: the wave compensator is internally provided with an electric cabinet and a wireless remote controller, the electric cabinet is electrically connected with the electric winch, and the wireless remote controller is used for controlling the electric winch to avoid mutual interference of cables.
8. The deepwater wave compensated seabed CPT probe rod righting and dismantling method according to claim 1, which is characterized in that: the quick clamp holder comprises two semicircular chucks, the two semicircular chucks are connected through a rotating shaft, a rotating handle is arranged on one semicircular chuck, the rotating handle can rotate on the semicircular chuck, a connecting groove and a handle diagonal brace arranged near the connecting groove are arranged on the other semicircular chuck, and the connecting groove and the handle diagonal brace form a locking for the rotating handle so that the two semicircular chucks can tightly hold a probe rod provided with a data line.
9. The deepwater wave compensated seabed CPT probe rod righting and dismantling method according to claim 8, which is characterized in that: the side of semicircle chuck is equipped with the structure strengthening rib.
10. The deepwater wave compensated seabed CPT probe rod righting and dismantling method according to claim 8, which is characterized in that: the handle adjusting nut is arranged at the joint of the rotary handle and the semicircular chuck, and the tightness of the handle adjusting nut can adjust the clasping degree between the two semicircular chucks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210345109.3A CN116927163A (en) | 2022-03-31 | 2022-03-31 | Deep water wave compensation type seabed CPT probe rod centralizing, disassembling and connecting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210345109.3A CN116927163A (en) | 2022-03-31 | 2022-03-31 | Deep water wave compensation type seabed CPT probe rod centralizing, disassembling and connecting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116927163A true CN116927163A (en) | 2023-10-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210345109.3A Pending CN116927163A (en) | 2022-03-31 | 2022-03-31 | Deep water wave compensation type seabed CPT probe rod centralizing, disassembling and connecting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116927163A (en) |
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2022
- 2022-03-31 CN CN202210345109.3A patent/CN116927163A/en active Pending
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