KR20160018251A - Jacket system for water and ocean facilities - Google Patents

Abstract

The present invention relates to a position-adjustable jacket device for water and sea facilities, and is to provide a jacket device which can be easily leveled and installed even when an undersea or underwater surface is not even. In addition, the present invention is to provide a jacket device which can accurately level a jacket without a foundation work for evenly hardening the ground or a complicated underwater work, and can achieve rapid installation, high work efficiency, and stability. In order to achieve the above object, the present invention is to provide a position-adjustable jacket device for water or sea facilities, comprising: a jacket which is supported in a undersea or underwater bottom and has multiple jacket legs serving as pillars and legs and in which each jacket leg comprises overlapped and connected upper and lower pipes; and a length adjusting actuator which is provided between the upper pipe and the lower pipe of each jacket leg and adjusts an overlap amount of the upper pipe and the lower pipe to vary a length and a height of the jacket leg, wherein the length and the height of each jacket leg are varied by driving of the length adjusting actuator, to adjust the position of the jacket.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a jacket system for a water-

The present invention relates to a jacket device for an aquatic or maritime facility capable of adjusting posture, and more particularly, to a jacket device for an aquatic or marine facility capable of easily adjusting the level without a foundation work for selecting a bottom floor, The present invention relates to a jacket device.

Generally, when constructing various facilities to be installed in maritime or aquatic water such as offshore plant, port structure, marine base, wind power generation facility including oil and gas extraction facilities, it is a basic substructure for building and supporting these facilities, Structures are widely used.

The jacket structure is a typical structure of an offshore structure. The jacket structure is a type of a stationary structure in which a jacket is firmly fixed using a pin pile or the like, which is excavated on an underground rock surface, I have.

Here, the jacket used for the jacket structure is mainly constructed as a wall-hung structure connected with hollow steel pipes, and a working platform is installed at the top of the jacket so as to be used as a work space.

Also, after finishing the jacket fixing work such as pin file construction using the workbench, the necessary facilities are installed on the upper side of the jacket to complete the water or marine industrial / research facility.

As a method of installing the jacket, there is a method of fixing a steel pipe as a pillar at the sea floor to the sea floor, and then connecting another steel pipe in a horizontal or inclined direction between the steel pipe and the jacket.

However, since it is manufactured and installed directly at sea, it is not easy to work, and it takes a lot of air, and when the jacket is installed as a construction rather than a permanent structure, it is difficult to remove it after completion of construction.

 In addition, there is a method in which the jacket is dried on the land and then transported to the installation site of the sea or water using a barge or the like, and the jacket carried by the line crane is mounted on the seabed or the bottom surface. Through the internal space of the jacket leg, the pin file is excavated on the ground to fix the jacket.

At this time, the drilling equipment such as RCD (Reverse Circulation Drill) equipment is installed on the workbench, and the ground of the submarine or bottom surface is excavated using the RCD bit through the inner space of the steel pipe (leg file) After inserting the pin file into the ball, grout construction is carried out to fill the grout between the drill hole and the pin file, between the pin file and the leg file, and the jacket structure is firmly fixed to the ground.

If the underside or bottom surface to be installed at the time of construction of the jacket structure is uneven, the jacket will not be leveled when the jacket is seated (the horizontal position of the installed workbench or top plate does not match), and in such a case, And it is possible to issue a problem on the safety of the structure due to the incorrect construction of the jacket structure.

Therefore, it is necessary to carry out a basic work to evenly ground the jacket before seating the jacket on the floor, and also to work to align the attitude of the jacket horizontally.

However, since such a foundation work must be carried out underwater or at the sea floor, it is not easy to work and accurate work is difficult to be carried out, so it is not easy to seat the jacket accurately horizontally even after finishing the foundation work.

In addition, there is a problem in terms of workload, labor, equipment, and cost due to the basic work, and there is a problem that the air is lengthened.

Korean Patent No. 10-0968431 discloses a ground leveling technique for aligning a jacket horizontally before fixing a jacket. This is disclosed in Korean Patent No. 10-0968431, And a method of leveling the jacket is proposed.

However, it is difficult to grasp the horizontal shape of the jacket because it is not easy to work underwater because it grasps the bottom surface shape of the seabed and spoon and spreads the mud mat at the height required for height adjustment for each jacket leg in the water .

In addition, for precise horizontal alignment, it is necessary to re-work the mud mat to check the horizontal posture of the mud mat, and then to adjust the height of the mud mat (if the level does not match, It is a fact that the process is troublesome, and there is a limitation in the working speed and the shortening of the air.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a jacket device capable of easily adjusting the horizontal position even when the bottom or bottom is uneven.

It is also an object of the present invention to provide a jacket device capable of precisely adjusting the level of a jacket without performing basic work for completing the ground surface or complicated underwater work, capable of quick installation, high work efficiency, and stability.

In order to accomplish the above object, the present invention provides a jacket comprising: a jacket having a plurality of jacket legs supported on a bottom surface of a seabed or a sole and serving as pillars and legs, ; And a length adjusting actuator mounted between the upper and lower tubes of each of the jacket legs to vary the length and height of the jacket leg by adjusting an overlapping amount of the upper tube and the lower tube, The present invention provides a jacket device for an aquatic or maritime facility capable of adjusting the posture, wherein the posture of the jacket is adjusted while the length and height of the jacket leg are variable.

In a preferred embodiment, the jacket device of the present invention comprises: a tilt sensor for detecting the tilt of the jacket; And a controller for receiving a detection value of the tilt sensor and outputting a control signal for horizontally aligning the jacket, wherein driving of each length-controlling actuator is controlled by a control signal outputted from the controller, .

Further, the length-controlling actuator is characterized in that the cylinder body is a cylinder mechanism which is connected to one of the upper pipe and the lower pipe, and the piston rod which operates forward and backward is coupled to the remaining pipe.

Further, the cylinder mechanism is a hydraulic cylinder that receives and operates the operating hydraulic pressure of a hydraulic control device controlled in accordance with a control signal of a controller.

The cylinder mechanism is characterized in that a plurality of cylinder mechanisms are provided on the outer peripheral surface of the tube so as to be equally spaced in the circumferential direction.

And a stopper is provided on the outer circumferential surface of the inner tube inserted into the other tube in the upper tube and the lower tube so as to prevent the inner tube from being inserted excessively more than a limited amount while the end of the outer tube is caught.

And a ground plate, which is grounded on the bottom surface of the seabed or spruce bottom, is rotatably hinged to the lower end of each of the jacket legs.

Therefore, according to the height-adjustable jacket device of the present invention, the leveling operation for adjusting the level of the jacket can be easily performed through the driving of the actuator for adjusting the height of the jacket leg even if the bottom surface of the seabed or the bottom is uneven The jacket can be quickly installed, the air can be shortened, high work efficiency and safety can be achieved.

In addition, the horizontal leveling and posture correction of the jacket is automatically performed according to the sensor value, so that the jacket can be installed accurately without any basic operation, and the safe and quick operation can be achieved through the automated process.

FIG. 1 and FIG. 2 are perspective views illustrating a posture adjusting type jacket apparatus according to an embodiment of the present invention.
3 is a front view showing the configuration of the posture adjusting type jacket device according to the embodiment of the present invention.
4 is an enlarged perspective view showing the installation and operation state of the length-adjusting actuator in the posture adjusting jacket apparatus according to the embodiment of the present invention.
FIG. 5 is a view showing the horizontal adjustment state of the posture adjustment type jacket device according to the embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art to which the present invention pertains.

FIG. 1 is a perspective view showing a posture adjusting type jacket according to an embodiment of the present invention, and FIG. 3 is a front view showing a configuration of a posture adjusting type jacket according to an embodiment of the present invention.

FIG. 4 is an enlarged perspective view showing the installation and operation state of the length-adjusting actuator in the posture adjusting jacket apparatus according to the embodiment of the present invention. Fig.

As shown in the figure, the jacket device 100 of the present invention includes a plurality of jacket legs (hereinafter, referred to as " G " And a jacket 110 having a structure in which a connecting member 112 connecting the plurality of jacket legs 111 in a horizontal, vertical or oblique direction is integrally coupled.

Here, the upper plate 113, which is horizontally arranged, is fixed to the upper end of the jacket leg 111. At this time, the upper plate 113 can be used as a work table for providing a work space for jacket fixing work as in a conventional jacket Do.

That is, after drilling equipment such as RCD equipment is installed on the upper plate 113, the upper plate 113 is used as a workbench to excavate the bottom of the bottom or bottom surface G through the inner space of the jacket leg 111 A process of inserting the pin file into the drill hole through the inner space of the jacket leg 111 and a grout construction for injecting / filling the grout material can be performed.

In addition, since the known work which has been carried out using the work table in the conventional jacket can be performed, the use of the top plate in the present invention is not limited to any particular one.

The top plate of the illustrated embodiment is merely an example, and various modifications of the shape, structure, and configuration that can serve as a work table can be implemented, and the shape, structure, and configuration of the top plate 113 are limited to the illustrated embodiment It is not.

For example, unlike the embodiment in which the plate member is simply provided, the upper plate 113 is supported by brackets fixed to the upper ends of the respective jacket legs 111 and includes a plurality of lower beams (for example, H-beams) A plurality of upper beams supported on the lower beam and arranged in a longitudinal direction so as to intersect in the horizontal direction, and a plate fixedly installed on the upper beam.

That is, instead of the illustrated upper plate 113 made of a single plate material, the workbench having the above-described configuration can be installed at the upper end of the jacket leg 111.

It is also possible to additionally provide a separate work table at the upper end of the upper jacket leg 111 in addition to the upper plate 113. Here, the work table may have the configuration of the work table described above, It is applicable if it is in the form.

On the other hand, the jacket leg 111 may be composed of a hollow steel pipe, and the connecting member 112 may be made of a steel material such as a steel pipe, a rod, and an H-beam.

In the illustrated embodiment, the jacket leg 111 serving as a pillar is obliquely installed in an oblique direction. However, it should be understood that the jacket leg 111 may be vertically installed.

In the illustrated embodiment, the upper and lower connecting members 112 are horizontally disposed between the jacket legs 111. However, this is only an example. But is not limited thereto.

For example, a connecting member 112 having a shape crosswise disposed in an oblique direction may be provided, or a connecting member 112 having a shape cross-disposed in an oblique direction between the upper and lower connecting members 112 Configuration can be applied.

In the present invention, each of the jacket legs 111 has a structure capable of adjusting the length (height) of the jacket legs 111. The length of each jacket leg 111 can be adjusted regardless of the shape of the ground So that the horizontal posture of the entire upper plate 113 (work table) and the entire jacket leg 111 can be adjusted.

To this end, each jacket leg 111 may have a plurality of pipes, preferably two pipes 111a and 111b, which are vertically overlapped. As illustrated, the upper plate 113 and the connecting member 112, The lower tube 111b may be inserted into the upper tube 111a.

The upper tube 111a and the lower tube 111b are connected to each other through a length adjusting actuator 121 for adjusting the length of the jacket leg 111. By driving the length adjusting actuator 121, The length of the jacket leg 111 can be varied by adjusting the overlapping amount of the lower tube 111b and the lower tube 111b (i.e., the insertion amount of the inserted tube).

The length-adjusting actuator 121 may be a cylinder mechanism 121 whose drive is controlled by a controller 123, and preferably a hydraulic cylinder may be used.

At this time, in the hydraulic cylinder 121, the cylinder body 121a can be coupled to the upper pipe 111a, the tip end of the piston rod 121b moving up and down in the forward and backward directions can be coupled to the lower pipe 111b, The relative position of the lower tube 111b with respect to the upper tube 111a can be adjusted while controlling the forward and backward strokes of the piston rod 121b during the drive control of the jacket legs 121, I.e., height) can be adjusted.

As the entire length of each jacket leg 111 is appropriately adjusted, the entire posture of the upper plate 113 and the jacket 110 can be aligned horizontally, and the driving control of the actuator 121, that is, the hydraulic cylinder, The horizontal leveling operation of the jacket 110 can be performed.

It is preferable that a plurality of the hydraulic cylinders 121 are provided for each of the jacket legs 111 so that the smooth length adjustment driving of the jacket legs 111 can be performed. In the illustrated embodiment, Two hydraulic cylinders 121 are provided, but the number of the hydraulic cylinders 121 can be changed as necessary.

That is, it is also possible to additionally provide the hydraulic cylinders 121 in addition to the two illustrated ones. At this time, the hydraulic cylinders 121 are arranged at equal intervals in the circumferential direction on the outer peripheral surface of the pipe 111a, 111b of the jacket leg 111 .

The jacket device 100 of the present invention controls the operating oil pressure of each hydraulic cylinder 121 in accordance with the control signal of the controller 123 so that the driving of each hydraulic cylinder 121 can be controlled by the controller 123 And a hydraulic control device 124 (see Fig. 3).

Accordingly, the horizontal alignment (horizontal leveling) of the jacket 110 can be automatically performed while the driving of each hydraulic cylinder 121 is controlled by an electrical signal output from the controller 123, that is, a control signal.

The outer circumferential surface of the inner tube inserted into the other of the two tubes 111a and 111b vertically connected to each other in the jacket leg 111, that is, the outer circumferential surface of the lower tube 111b as illustrated, A stopper 114 may be provided to allow the end of the upper tube 111a (outer tube) to be caught.

The stopper 114 serves to prevent the lower tube 111b from being excessively inserted beyond the upper limit of the upper tube 111a even if an abnormality occurs in the hydraulic control device 124 or an abnormality in the hydraulic cylinder 121 .

The stopper 114 may be welded or bolted to the outer circumferential surface of the tube 111b, and a plurality of the stopper 114 may be provided along the circumferential direction on the outer circumferential surface of the tube 111b.

A separate ground plate 115 is connected to the lower end of each jacket leg 111 which is grounded on the bottom surface G of the seabed or spruce 110 in the jacket 110, And is rotatably provided.

3, the jacket device 100 of the present invention further includes a tilt sensor 122 for detecting the tilt of the jacket 100 in a state of being mounted on the bottom or bottom surface G, A known horizontal sensor may be used as the sensor 122, and the sensor 122 may be mounted on the upper plate 113, the jacket leg 111, or the like.

The inclination sensor 122 detects the inclination of the jacket 110 and outputs an electrical signal corresponding to the detected value. The inclination detection signal for the jacket 110, that is, the signal output from the inclination sensor 122, Controller 123 is connected to receive input.

The controller 123 outputs a control signal for keeping the jacket 110 horizontal based on the inclination value of the jacket detected by the inclination sensor 122 and outputs the control signal to the controller 123 (Horizontal leveling) is performed while the driving of each length-controlling actuator 121 is controlled.

At this time, the operation of the hydraulic control device 124 including the hydraulic control valve is controlled in accordance with the control signal of the controller 123, and the operating breast of each hydraulic cylinder 121 is controlled to control the operation of the jacket leg 111 The height (height) of the jacket 110 can be controlled so that the attitude of the jacket 110 can be controlled.

In the present invention, after the jacket 110 is mounted on the ground G of the water table or the seabed, the actuator 121 for controlling the length of each jacket leg 111 is driven and controlled according to the detection value of the sensor, The posture correction for horizontally aligning and horizontally aligning the image can be performed.

5, the height of each jacket leg 111 is automatically adjusted even if the jacket 110 is mounted on the bottom or bottom surface G of the ground, The horizontal leveling operation of the jacket 110 can be performed quickly, easily, and more safely.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, Forms are also included within the scope of the present invention.

100: jacket device 110: jacket
111: jacket leg 111a: upper tube
111b: lower tube 112: connecting member
113: top plate 114: stopper
115: ground plate 115a: bracket
121: Actuator for length adjustment (or hydraulic cylinder)
121a: cylinder body 121b: piston rod
122: tilt sensor 123: controller
124: Hydraulic control device

Claims (7)

And is constituted by an upper tube 111a and a lower tube 111b each having a plurality of jacket legs 111 which are supported on the bottom surface G of the seabed or the bottom of the sole and serve as pillars and legs, (110);
The length and height of the jacket leg 111 can be adjusted by adjusting the amount of overlap between the upper tube 111a and the lower tube 111b by being mounted between the upper tube 111a and the lower tube 111b of each jacket leg 11, An actuator 121 for adjusting the length;
And the length of the jacket legs 111 and the height of the jacket legs 111 are varied by driving the actuator 121 for adjusting the length of the jacket 110 so that the posture of the jacket 110 can be adjusted. Jacket device.
The method according to claim 1,
A tilt sensor 122 for detecting the tilt of the jacket 110;
A controller 123 for receiving a detection value of the tilt sensor 122 and outputting a control signal for horizontally aligning the jacket 110;
And the leveling of the jacket (110) is performed by controlling the driving of each length-adjusting actuator (121) by a control signal outputted from the controller (123) A jacket device for facilities.
The method of claim 2,
The actuator 121 for controlling the length of the cylinder 121 includes a cylinder body 121a which is connected to one of the upper tube 111a and the lower tube 111b and a cylinder mechanism in which a piston rod 121b, 121). A jacket device for water or marine facilities capable of adjusting the posture.
The method of claim 3,
Wherein the cylinder mechanism (121) is a hydraulic cylinder that receives and operates the operating oil pressure of the oil pressure control device (124) controlled in accordance with a control signal of the controller (123) .
The method of claim 3,
Wherein a plurality of the cylinder mechanisms (121) are installed on the outer circumferential surfaces of the tubes (111a, 111b) of the jacket legs (111) so as to be equally spaced along the circumferential direction.
The method according to any one of claims 1 to 3,
A stopper 114 is provided on the outer circumferential surface of the inner tube inserted into the other tube in the upper tube 111a and the lower tube 111b to prevent the inner tube from being excessively inserted beyond a limit amount by the end of the outer tube being caught A jacket device for a water or marine facility capable of adjusting the posture.
The method according to any one of claims 1 to 3,
A ground plate 115 grounded on the bottom surface of the seabed or spruce bottom is rotatably hinged to the lower end of the lower tube 111b of each jacket leg 111, .

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