CN115897575A - Underwater pile sinking device and process based on suction cylinder type pile stabilizing platform - Google Patents
Underwater pile sinking device and process based on suction cylinder type pile stabilizing platform Download PDFInfo
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- CN115897575A CN115897575A CN202310141659.8A CN202310141659A CN115897575A CN 115897575 A CN115897575 A CN 115897575A CN 202310141659 A CN202310141659 A CN 202310141659A CN 115897575 A CN115897575 A CN 115897575A
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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
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- Y02E10/727—Offshore wind turbines
Abstract
The invention discloses an underwater pile sinking device and process based on a suction tube type pile stabilizing platform, wherein the device is fixedly arranged on a sea bed surface and comprises mounting stand columns, a mounting platform, a suction tube and a hoop, the top of the suction tube is fixedly connected with the bottom of the mounting platform through four groups of adjusting oil cylinders, the mounting stand columns are provided with four groups of adjusting oil cylinders and are respectively and fixedly arranged above the mounting platform, the tops of the mounting stand columns are respectively provided with a lifting point, the hoop is provided with two groups of adjusting oil cylinders and are respectively and fixedly arranged above and below the two groups of mounting stand columns on one side, the outer wall of the suction tube is sleeved with a positioning ring, the positioning ring is arranged on the sea bed surface in an attaching mode, the lower side of the mounting platform is also connected with the top of the suction tube through mode, the top of the suction tube is provided with a water injection and drainage power device in a penetrating mode. The invention has the advantages that the pile stabilizing platform can position and sink the pile on the surface of the underwater seabed, and can be adapted to the complex surface of the seabed to realize the leveling of the platform, thereby accurately ensuring the verticality of pile sinking operation.
Description
Technical Field
The invention relates to the technical field of offshore equipment manufacturing, in particular to an underwater pile sinking device and process based on a suction cylinder type pile stabilizing platform.
Background
The steel pipe pile is a commonly used positioning and mounting support for building structure objects such as bridges, wind power platforms and the like, and has the characteristics of high construction precision requirement, complex working conditions, deep pile sinking depth and the like. At present, the accurate pile sinking of the steel pipe pile is a difficult point and a key point of pile driving operation, and the pile sinking verticality requirement is very high particularly in the pile driving operation of a large-diameter single pile foundation of offshore wind power. In the sea, especially in the deep sea, the construction environment is severe, and certain errors or displacement deviation can be generated in the pile sinking construction process of the steel pipe pile under the influence of wind waves, water currents and tides.
The pile stabilizing platform is a necessary tool for offshore wind power foundation pile construction, and mainly aims to adjust the verticality of a guide pipe pile at any time in the pile driving process of the guide pipe pile and ensure that the verticality error of a steel pipe pile is within 3 per thousand; in addition, because sea waves and sea wind are beaten on the sea surface, the stability of the whole pile stabilizing platform is not high enough, so that the steel pipe pile needs to be continuously adjusted in the pile sinking process, the verticality of pile sinking operation is ensured, and even the precision is not high.
Disclosure of Invention
The invention aims to provide an underwater pile sinking device and process based on a suction cylinder type pile stabilizing platform, which can position and sink a pile on the surface of an underwater seabed and can be adapted to the complicated seabed surface to realize the leveling of the platform, thereby accurately ensuring the verticality of pile sinking operation.
The technical purpose of the invention is realized by the following technical scheme:
the utility model provides an underwater pile sinking device based on steady stake platform of suction cylinder, fixed the setting on sea bed surface, its characterized in that, including installation stand, mounting platform, suction section of thick bamboo and staple bolt, suction section of thick bamboo top is through four group adjusting cylinder and mounting platform bottom fixed connection, the last spirit level that is provided with of mounting platform, the installation stand is provided with four group respectively fixed the setting in the mounting platform top altogether, the installation stand top all is provided with the hoisting point, through truss fixed connection between the installation stand, the staple bolt is provided with two sets ofly altogether, respectively fixed mounting in the upper and lower of two sets of installation stands of one side, suction section of thick bamboo outer wall cover is equipped with a holding ring, the holding ring can be followed suction section of thick bamboo outer wall direction of height and slided, the holding ring laminating sets up in sea bed surface, the mounting platform below still is connected with suction section of thick bamboo top through an unhook fixing device, suction section of thick bamboo top link up and is provided with drainage pipe, it is connected with notes drainage pipe to annotate drainage pipe power device, mounting platform bottom center department installs the camera that can 360 rotations.
Preferably, the inside center department of a suction section of thick bamboo is vertical to be provided with a reference column, reference column bottom diameter is less than the top diameter, the inside top of a suction section of thick bamboo is provided with multiunit evenly distributed's distance sensor all around in the reference column, the suction section of thick bamboo outer wall is provided with the deflector that the multiunit set up along the altitude direction, the locating ring inboard slides along the deflector setting method through setting up the guide assembly.
Preferably, the guide assembly comprises a plurality of groups of limiting wheels, and the limiting wheels are arranged at two ends of the guide plate in a fitting transmission manner.
Preferably, the outer side of the bottom of the positioning ring is provided with a conical positioning nail, the positioning ring is fixedly arranged on the surface of the seabed through the conical positioning nail, and the inner side of the bottom of the positioning ring is also provided with a plurality of pressure sensors.
Preferably, unhook fixing device includes the fixed head, colludes claw, spacing and promotes the hydro-cylinder, fixed head and suction section of thick bamboo upper portion fixed connection, fixed head top both sides are provided with the hook groove, collude claw bottom and hook groove cooperation fixed, spacing fixed mounting is in the inside mounting platform bottom of adjusting cylinder, collude the claw top and rotate and install in spacing top, spacing is whole for the L type setting of invering, spacing bottom offsets with colluding the claw inboard, promote the hydro-cylinder and install on mounting platform, promote the hydro-cylinder output run through mounting platform and with collude claw top activity hinge joint.
Preferably, the upper end and the lower end of the outer wall of the suction cylinder are respectively provided with an upper limiting plate and a lower limiting plate, and the positioning ring is movably limited on the outer wall of the suction cylinder through the upper limiting plate and the lower limiting plate.
Preferably, the staple bolt includes the fixing base, embraces arm and centering hydro-cylinder, fixing base and installation stand fixed connection, the fixing base is inboard and embrace the arm wholly for the arc, and every fixing base both ends opening part of group is equallyd divide and is divided do not the activity hinge have two sets of arms of embracing, the fixing base outside is provided with one and embraces the arm hydro-cylinder, embrace arm hydro-cylinder output and embrace arm swing joint, the centering hydro-cylinder is provided with four groups at least, symmetry fixed mounting respectively inside fixing base and armful arm, the equal fixed mounting of centering hydro-cylinder output has an arc armful board, be provided with the multiunit leading wheel on the arc armful board, leading wheel and the laminating of steel-pipe pile outer wall.
Preferably, the leading wheel includes fixed leading wheel and regulation leading wheel, fixed leading wheel passes through connecting seat fixed mounting and embraces the board middle part in the arc, and the regulation leading wheel is installed on the arc armful board of fixed leading wheel both sides through buffering subassembly and connecting seat, the buffering subassembly includes slider and buffer spring, and the connecting seat both ends correspond the slider and are provided with the dashpot, the slider is fixed to be set up in the installation axle both ends of adjusting the leading wheel, slider slidable mounting is in the dashpot, buffer spring installs between slider and dashpot, the connecting seat link up in the dashpot and is provided with outlet and outside intercommunication.
An underwater pile sinking process based on a suction cylinder type pile stabilizing platform is characterized in that: the method comprises the following steps:
(1) Firstly, the whole upper part of an installation platform and a suction cylinder are transported separately, a crane is used for hoisting a hoisting point of an installation upright column on the installation platform before underwater pile sinking is needed, an adjusting oil cylinder at the bottom of the installation platform is movably connected with the hinged part of the suction cylinder respectively, the top of the suction cylinder is grabbed and fixed through a unhooking fixing device, and the adjusting oil cylinder is in an out-of-operation state;
(2) After the concrete pile sinking position of the steel pipe pile is determined through GPS positioning, the integral device is hoisted through a crane,
and is gradually put into seawater until the integral device falls on the surface of the underwater seabed;
(3) Judging the angle deviation between the positioning ring and the corresponding seabed surface through the camera and a pressure sensor at the bottom of the positioning ring, and at the moment, driving the stroke of the oil cylinder on the corresponding suction cylinder in different directions to ensure that the whole bottom of the positioning ring is attached to the corresponding seabed surface;
(4) The driving and pushing oil cylinder enables the unhooking fixing device to be unhooked and released, the suction cylinder at the lowest plane is determined through the level meter and the camera, the interior of the suction cylinder is drawn out through the water injection and drainage power device to form negative pressure, the suction cylinder is slowly pressed into a seabed foundation under the action of the negative pressure, each suction cylinder is driven in along the guiding direction of the positioning ring, whether the suction cylinder reaches the maximum depth or not is judged through the distance sensor in the suction cylinder at the lowest plane, the driving depths of other suction cylinders are adjusted through the level meter at the moment, and therefore the mounting platform is located on the same horizontal plane;
(5) After leveling is finished, opening the upper and lower groups of arm-embracing arms, accurately lifting the steel pipe pile through the lifting hooks, withdrawing and clamping the steel pipe pile through the arm-embracing oil cylinder after the bottom of the steel pipe pile enters the internal range of the arm-embracing arms, driving and adjusting the stroke of the centering oil cylinder, enabling the guide wheels of the upper and lower hoops to be tightly attached to the outer wall of the steel pipe pile, enabling the verticality of the steel pipe pile to meet the pile driving requirement, and then carrying out pile driving work;
(6) After the completion is squeezed into to the steel-pipe pile body, retrieve and hold the arm hydro-cylinder and open and hold the arm, get into suction section of thick bamboo through annotating the drainage power device water injection in to extract whole from the seabed surface, extract after accomplishing, adjust the hydro-cylinder to initial stroke, rethread unhook fixing device fixes suction section of thick bamboo top, lifts by crane the integrated device through the gallows at last, lifts by crane the in-process and avoids touching the steel-pipe pile outside.
In conclusion, the invention has the following beneficial effects:
the adjustable-angle seabed adsorption device realizes angle adjustment by arranging the adjusting oil cylinder at the top of the suction cylinder, so that the adjustable-angle seabed adsorption device is attached to the corresponding complex seabed surface as much as possible and stably adsorbs the seabed surface.
According to the invention, the positioning ring is arranged on the outer side of the suction tube and is pre-fixed on the seabed for avoiding the displacement, so that the guide effect on the suction tube is realized, the suction tube is prevented from being deviated in the process of pressing into the seabed foundation, and meanwhile, the stability of the whole device can be enhanced.
According to the invention, the positioning column is arranged in the center inside the suction tube, and as the diameter of the bottom of the positioning column is smaller than that of the top of the positioning column, the positioning column extrudes surrounding foundation soil in the process of continuously pressing in the suction tube, so that the connection between the suction tube and the sea bed surface is more stable.
The invention carries out combined control through the pressure sensor, the level gauge and the camera at the bottom of the positioning ring, thereby realizing the integral leveling of the device and preparing for the subsequent pile sinking work of the steel pipe pile.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention in a state of the surface of the seabed;
FIG. 2 is a schematic view of the overall structure of the present invention completing a leveling state on the seabed surface;
FIG. 3 is a schematic diagram of the overall structure of the present invention for completing the suction cylinder adsorption state on the seabed surface;
FIG. 4 is a schematic view of the overall structure of the suction tube of the present invention in a state of being fixedly connected to the mounting platform;
FIG. 5 is a schematic view showing the overall structure of the suction tube in the adjusted state according to the present invention;
FIG. 6 is a schematic view of the positioning ring of the present invention at the bottom of the suction tube;
FIG. 7 is a schematic view of the overall structure of the hoop of the present invention;
FIG. 8 is a schematic structural view of an arc-shaped holding plate according to the present invention;
FIG. 9 is a schematic view of the construction of the cushioning assembly of the present invention;
in the figure: 1-mounting upright column, 2-mounting platform, 3-suction barrel, 4-hoop, 5-adjusting oil cylinder, 6-level meter, 7-lifting point, 8-truss, 9-positioning ring, 10-water injection and drainage pipeline, 11-water injection and drainage power device, 12-camera, 13-positioning column, 14-distance sensor, 15-guide plate, 16-limiting wheel, 17-conical positioning nail, 18-pressure sensor, 19-fixing head, 20-claw, 21-limiting frame, 22-pushing oil cylinder, 23-hook groove, 24-upper limiting plate, 25-lower limiting plate, 26-fixing seat, 27-holding arm, 28-centering oil cylinder, 29-holding arm oil cylinder, 30-arc holding plate, 31-fixing guide wheel, 32-adjusting guide wheel, 33-slide block, 34-buffer spring and 35-buffer groove.
Detailed Description
The following description will further describe the embodiments of the present invention with reference to the accompanying drawings, which are not intended to limit the present invention.
As shown in fig. 1 to 9, an underwater pile sinking device based on a suction tube type pile stabilizing platform is fixedly arranged on a sea bed surface, and comprises a mounting upright post 1, a mounting platform 2, a suction tube 3 and a hoop 4, wherein the top of the suction tube 3 is fixedly connected with the bottom of the mounting platform 2 through four groups of adjusting oil cylinders 5, the top of the suction tube 3 is provided with the adjusting oil cylinders 5 to realize angle adjustability, so as to be attached to the corresponding complex sea bed surface as much as possible, the sea bed surface is stably adsorbed, the mounting platform 2 is provided with a level gauge 6, the mounting upright post 1 is provided with four groups of adjusting oil cylinders 5 respectively and fixedly arranged above the mounting platform 2, the top of the mounting upright post 1 is provided with a lifting point 7, the mounting upright posts 1 are fixedly connected through a truss 8, the hoop 4 is provided with two groups of adjusting cylinders 4 respectively and fixedly arranged above and below the two groups of mounting upright posts 1 on one side, the outer wall of the suction tube 3 is sleeved with a positioning ring 9, the positioning ring 9 can slide along the height direction of the outer wall of the suction tube 3, the positioning ring 9 is attached to the sea bed surface, the mounting platform is arranged below the mounting platform 2, the mounting platform is further connected with a unhooking device through a drainage pipe 3, the center 12, and a drainage pipe 2 is connected with a camera head capable of accurately mounted at the bottom of a drainage pipe 2, and a leveling platform.
A positioning column 13 is vertically arranged at the center inside a suction tube 3, the bottom diameter of the positioning column 13 is smaller than the top diameter, the positioning column extrudes surrounding foundation soil in the continuous pressing-in process of the suction tube 3, so that the connection between the suction tube 3 and a sea bed surface is more stable, a plurality of groups of uniformly distributed distance sensors 14 are arranged around the positioning column 13 at the top inside the suction tube 3, a plurality of groups of guide plates 15 arranged along the high line direction are arranged on the outer wall of the suction tube 3, the inner side of the positioning ring 9 slides along the arrangement method of the guide plates 15 through arranging a guide assembly, the guide assembly comprises a plurality of groups of limiting wheels 16, and the limiting wheels 16 are arranged at two ends of the guide plates 15 in a fitting transmission manner.
The outer side of the bottom of the positioning ring 9 is provided with a conical positioning nail 17, the positioning ring 9 is fixedly arranged on the surface of the seabed through the conical positioning nail 17, the inner side of the bottom of the positioning ring 9 is further provided with a plurality of pressure sensors 18, and the positioning nail 17 can enable the positioning ring 9 to be more stably fixed on the surface of the seabed.
Unhooking fixing device includes fixed head 19, collude claw 20, spacing 21 and promotion hydro-cylinder 22, fixed head 19 and 3 upper portion fixed connection of suction section of thick bamboo, fixed head 19 top both sides are provided with hook groove 23, collude claw 20 bottom and hook groove 23 cooperation fixed, spacing 21 fixed mounting is in 2 bottoms of the inside mounting platform of adjusting hydro-cylinder 5, collude claw 20 top and rotate and install in spacing 21 top, spacing 21 is whole to set up for the L type of inversion, spacing 21 bottom offsets with colluding claw 20 inboard, promotion hydro-cylinder 22 is installed on mounting platform 2, promotion hydro-cylinder 22 output runs through mounting platform 2 and colludes claw 20 top activity hinge, unhooking fixing device can play temporary fixed effect of snatching to suction section of thick bamboo 3, avoid adjusting hydro-cylinder 5 directly to produce the pulling force to suction section of thick bamboo 3 under the buoyancy circumstances.
The upper end and the lower end of the outer wall of the suction barrel 3 are respectively provided with an upper limiting plate 24 and a lower limiting plate 25, and the positioning ring 9 is movably limited on the outer wall of the suction barrel 3 through the upper limiting plate 24 and the lower limiting plate 25.
The leading wheel includes fixed leading wheel 31 and regulation leading wheel 32, fixed leading wheel 31 is through connecting seat 35 fixed mounting in arc armful board 30 middle part, it installs on the arc armful board 30 of fixed leading wheel 31 both sides with connecting seat 35 to adjust leading wheel 32 through buffering subassembly, the buffering subassembly includes slider 33 and buffer spring 34, connecting seat 35 both ends correspond slider 33 and are provided with buffer slot 35, slider 33 is fixed to be set up in the installation axle both ends of adjusting leading wheel 32, slider 33 slidable mounting is in buffer slot 35, buffer spring 34 installs between slider 33 and buffer slot 35, connecting seat 35 is provided with outlet 36 and outside intercommunication in buffer slot 35 intercommunication, cooperate with the leading wheel through armful hydro-cylinder 29, thereby can firmly lock the steel-pipe pile, avoid the steel-pipe pile to take place the straightness change at pile sinking in-process, guarantee the precision of pile sinking.
An underwater pile sinking process based on a suction cylinder type pile stabilizing platform comprises the following steps:
(1) Firstly, the whole upper part of the mounting platform 2 and the suction cylinder 3 are transported separately, a lifting point 7 of a mounting upright post 1 on the mounting platform 2 is lifted by a crane before underwater pile sinking is needed, the adjusting oil cylinder 5 at the bottom of the mounting platform 2 is movably connected with the hinged part of the suction cylinder 3 respectively, the top of the suction cylinder 3 is grabbed and fixed by the unhooking fixing device, and the adjusting oil cylinder 5 is in an out-of-operation state at the moment.
(2) After the concrete pile sinking position of the steel pipe pile is determined through GPS positioning, the integral device is hoisted through a crane and is gradually placed into seawater until the integral device falls on the surface of the underwater seabed, as shown in figure 1.
(3) The angular deviation between the positioning ring 9 and the corresponding seabed surface is judged through the camera 12 and the pressure sensor 18 at the bottom of the positioning ring 9, and at the moment, the stroke of the oil cylinder 5 is adjusted in different directions on the corresponding suction cylinder 3 through driving, so that the whole bottom of the positioning ring 9 is attached to the corresponding seabed surface, as shown in fig. 2.
(4) The driving pushing oil cylinder 22 enables the unhooking fixing device to achieve unhooking and releasing, the suction cylinders 3 located at the lowest plane are determined through the gradienter 6 and the camera 12, then the insides of the suction cylinders 3 are drawn through the water injection and drainage power device 11 to form negative pressure, the suction cylinders 3 are slowly pressed into seabed foundations under the action of the negative pressure, each suction cylinder 3 is driven in along the guiding direction of the positioning ring 9, whether the suction cylinder 3 reaches the maximum depth or not is judged through the distance sensor 14 located inside the suction cylinder 3 located at the lowest plane, at the moment, the driving depths of other suction cylinders 3 are adjusted through the gradienter 6, and therefore the mounting platform 2 is located on the same horizontal plane, as shown in fig. 3.
(5) After finishing the leveling, open two sets of armful arms 27 about, carry out the accuracy to the steel-pipe pile and lift by crane through the lifting hook, after the steel-pipe pile bottom got into armful arm 27 internal range, withdraw and press from both sides tight steel-pipe pile through armful arm hydro-cylinder 29, drive and adjust the stroke of centering hydro-cylinder 28 for the leading wheel of staple bolt 4 closely laminates in the steel-pipe pile outer wall from top to bottom, and makes the steel-pipe pile straightness that hangs down satisfy the pile demand, carries out pile work again.
(6) After the steel pipe pile body is driven into and is accomplished, retrieve armful arm hydro-cylinder 29 and open armful arm 27, get into suction section of thick bamboo 3 through annotating drainage power device 11 water injection to extract whole from the seabed surface, extract after accomplishing, adjust adjusting cylinder 5 to initial stroke, rethread unhook fixing device fixes suction section of thick bamboo 3 top, lifts by crane the integrated device through the gallows at last, lifts by crane the in-process and avoids touching the steel pipe pile outside.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the invention.
Claims (9)
1. The utility model provides an underwater pile sinking device based on steady stake platform of suction tube, fixed the setting on sea bed surface, a serial communication port, including installation stand, mounting platform, a suction section of thick bamboo and staple bolt, four group adjusting cylinder and mounting platform bottom fixed connection are passed through at suction section of thick bamboo top, the last spirit level that is provided with of mounting platform, the installation stand is provided with four group difference fixed settings in the mounting platform top altogether, the mounting stand top all is provided with the hoisting point, through truss fixed connection between the installation stand, the staple bolt is provided with two sets ofly altogether, and fixed mounting is in the upper and lower of two sets of installation stands of one side respectively, suction section of thick bamboo outer wall cover is equipped with a holding ring, the holding ring can be followed the slip of suction section of thick bamboo outer wall direction of height, the holding ring laminating sets up in sea bed surface, the mounting platform below still is connected with suction section of thick bamboo top through a unhook fixing device, suction section of thick bamboo top link up and is provided with water injection and drainage pipe, be connected with on the notes drainage power device, but 360 rotatory cameras are installed to mounting platform bottom center department.
2. The underwater pile sinking device based on the suction tube type pile stabilizing platform is characterized in that: the inside center department of suction section of thick bamboo is vertical to be provided with a reference column, reference column bottom diameter is less than the top diameter, the inside top of suction section of thick bamboo is provided with multiunit evenly distributed's distance sensor all around in the reference column, the suction section of thick bamboo outer wall is provided with the deflector that the multiunit set up along the altitude direction, the locating ring inboard slides along deflector setting method through setting up the guide assembly.
3. The underwater pile sinking device based on the suction tube type pile stabilizing platform is characterized in that: the guide assembly comprises a plurality of groups of limiting wheels, and the limiting wheels are arranged at two ends of the guide plate in a fitting transmission mode.
4. The underwater pile sinking device based on the suction cylinder type pile stabilizing platform as claimed in claim 1, wherein: the seabed processing device is characterized in that a conical positioning nail is arranged on the outer side of the bottom of the positioning ring, the positioning ring is fixedly installed on the surface of the seabed through the conical positioning nail, and a plurality of pressure sensors are further arranged on the inner side of the bottom of the positioning ring.
5. The underwater pile sinking device based on the suction cylinder type pile stabilizing platform as claimed in claim 1, wherein: unhooking fixing device includes the fixed head, colludes claw, spacing and promotion hydro-cylinder, fixed head and suction section of thick bamboo upper portion fixed connection, fixed head top both sides are provided with the hook groove, collude claw bottom and hook groove cooperation fixed, spacing fixed mounting is in the inside mounting platform bottom of adjusting cylinder, collude the claw top and rotate and install in spacing top, spacing is whole to set up for the L type of invering, spacing bottom offsets with colluding the claw inboard, the promotion hydro-cylinder is installed on mounting platform, promotion hydro-cylinder output runs through mounting platform and colludes claw top activity hinge joint.
6. The underwater pile sinking device based on the suction tube type pile stabilizing platform is characterized in that: the upper end and the lower end of the outer wall of the suction cylinder are respectively provided with an upper limiting plate and a lower limiting plate, and the positioning ring is movably limited on the outer wall of the suction cylinder through the upper limiting plate and the lower limiting plate.
7. The underwater pile sinking device based on the suction tube type pile stabilizing platform is characterized in that: the staple bolt includes the fixing base, embraces arm and centering hydro-cylinder, fixing base and installation stand fixed connection, the fixing base is inboard and embrace the arm wholly to be the arc, and every fixing base both ends opening part of group is equallyd divide do not the activity hinge have two sets of arms of embracing, the fixing base outside is provided with one and embraces the arm hydro-cylinder, embrace arm hydro-cylinder output and embrace arm swing joint, the centering hydro-cylinder is provided with four groups at least, symmetry fixed mounting respectively inside fixing base and armful arm, the equal fixed mounting of centering hydro-cylinder output has an arc to embrace the board, the arc is embraced and is provided with the multiunit leading wheel on the board, leading wheel and the laminating of steel-pipe pile outer wall.
8. The underwater pile sinking device based on the suction tube type pile stabilizing platform is characterized in that: the leading wheel includes fixed leading wheel and regulation leading wheel, fixed leading wheel passes through connecting seat fixed mounting in arc armful board middle part, and the regulation leading wheel is installed on the arc armful board of fixed leading wheel both sides through buffering subassembly and connecting seat, the buffering subassembly includes slider and buffer spring, and the connecting seat both ends correspond the slider and are provided with the dashpot, the slider is fixed to be set up in the installation axle both ends of adjusting the leading wheel, slider slidable mounting is in the dashpot, buffer spring installs between slider and dashpot, the connecting seat link up in the dashpot and is provided with outlet and outside intercommunication.
9. An underwater pile sinking process based on a suction cylinder type pile stabilizing platform is characterized in that: the method comprises the following steps:
(1) Firstly, the whole upper part of an installation platform and a suction cylinder are transported separately, before underwater pile sinking is needed, a crane is used for hoisting a hoisting point of an installation upright column on the installation platform, an adjusting oil cylinder at the bottom of the installation platform is movably connected with a hinged part of the suction cylinder respectively, the top of the suction cylinder is grabbed and fixed through a unhooking fixing device, and the adjusting oil cylinder is in a non-working state;
(2) After the concrete pile sinking position of the steel pipe pile is determined through GPS positioning, the integral device is hoisted through a crane,
and gradually put into seawater until the integral device falls on the surface of the underwater seabed;
(3) Judging the angle deviation between the positioning ring and the corresponding seabed surface through the camera and a pressure sensor at the bottom of the positioning ring, and at the moment, driving the corresponding suction barrel to adjust the stroke of the oil cylinder in different directions to ensure that the whole bottom of the positioning ring is attached to the corresponding seabed surface;
(4) The driving and pushing oil cylinder enables the unhooking fixing device to be unhooked and released, the suction cylinder at the lowest plane is determined through the level meter and the camera, the interior of the suction cylinder is drawn out through the water injection and drainage power device to form negative pressure, the suction cylinder is slowly pressed into a seabed foundation under the action of the negative pressure, each suction cylinder is driven in along the guiding direction of the positioning ring, whether the suction cylinder reaches the maximum depth or not is judged through the distance sensor in the suction cylinder at the lowest plane, the driving depths of other suction cylinders are adjusted through the level meter at the moment, and therefore the mounting platform is located on the same horizontal plane;
(5) After leveling is finished, opening the upper and lower groups of arm-embracing arms, accurately lifting the steel pipe pile through the lifting hooks, withdrawing and clamping the steel pipe pile through the arm-embracing oil cylinder after the bottom of the steel pipe pile enters the internal range of the arm-embracing arms, driving and adjusting the stroke of the centering oil cylinder, enabling the guide wheels of the upper and lower hoops to be tightly attached to the outer wall of the steel pipe pile, enabling the verticality of the steel pipe pile to meet the pile driving requirement, and then carrying out pile driving work;
(6) After the steel-pipe pile body is driven into and is accomplished, retrieve and hold arm hydro-cylinder and open and hold the arm, get into in the suction section of thick bamboo through annotating the water injection of drainage power device to extract whole from the seabed surface, extract after accomplishing, adjust the hydro-cylinder to initial stroke, rethread unhook fixing device fixes suction section of thick bamboo top, lifts by crane the integrated device through the gallows at last, lifts by crane the in-process and avoids touching the steel-pipe pile outside.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116427375A (en) * | 2023-06-02 | 2023-07-14 | 天津天易海上工程有限公司 | Shallow sea jacket leveling mechanism and use method thereof |
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| CN116427375B (en) * | 2023-06-02 | 2023-09-05 | 天津天易海上工程有限公司 | Shallow sea jacket leveling mechanism and use method thereof |
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| CN115897575B (en) | 2023-06-02 |
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