KR101566524B1 - Method for loading large block of ship - Google Patents
Method for loading large block of ship Download PDFInfo
- Publication number
- KR101566524B1 KR101566524B1 KR1020140032896A KR20140032896A KR101566524B1 KR 101566524 B1 KR101566524 B1 KR 101566524B1 KR 1020140032896 A KR1020140032896 A KR 1020140032896A KR 20140032896 A KR20140032896 A KR 20140032896A KR 101566524 B1 KR101566524 B1 KR 101566524B1
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- large block
- floating dock
- dock
- floating
- block
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Abstract
A large block mounting method is disclosed. A method for mounting a large block of a ship on a floating dock includes floating a large block on the sea; Lowering a floating dock provided with a bump capable of supporting a lower portion of a large block; Moving the large block into the floating dock; Binding the large block to the floating dock; A first elevating step of elevating the floating dock until the large block is supported on the double helix; And a second elevating step of elevating the floating dock so that the bottom surface of the floating dock is located above the sea level with the large block being supported on the double helix, And a position adjusting step of adjusting the relative position of the large block.
Description
The present invention relates to a large block mounting method.
In general, the shipbuilding industry, which consists of designing, building and delivering, starting with the order of the ship, is judged by the profitability of the business in the process.
At this time, one of the important factors that determine such profitability is the productivity that comes from the ship 's drying method, and all the shipbuilding industry is striving to improve the productivity of shipbuilding.
The block method first divides the hull into dozens or hundreds of blocks, assembles the divided blocks on the ground first, and then sequentially reassembles the assembled blocks into a dock (dry dock, floating dock, dock) or a barge to dry one ship.
To accomplish this, first, the block is completed in the most efficient manner in each factory according to its shape, and then a painting operation is performed on the completed block.
Thereafter, the painted blocks are combined into several blocks. The work of combining the plurality of blocks in this manner is referred to as a pre-errection (PE) operation.
Most shipyards are making a lot of effort to increase the dock turnover by making many blocks necessary for the ship first as large block through PE work, and then to transport it to the inside of the dock to dry the ship.
On the other hand, a dock is a facility built on a shipyard or a port to repair and dry a ship. The dock is largely divided into a dry dock and a floating dock.
First, dry dock is a land structure for ship construction. It can open and close a dock gate that is docked in the sea, fill water in the dock, and draw water from the inside of the dock.
On the other hand, a floating dock is a floating structure that contains a ballast tank inside a dock. When water is injected into the ballast tank, the floating dock sinks into the water, and when the water is discharged from the ballast tank, It has a floating shape in the sea.
Such a floating dock does not require site or foundation work for drying the ship, has a relatively short drying period, can reduce the drying cost, and has advantages of convenient launching of a dry ship.
Thus, drying vessels or offshore structures on floating docks can save drying costs and time compared to drying on dry land docks.
Conventionally, in a method of drying a ship in a floating dock, a large block is manufactured so as to approach a maximum capacity of a crane on the land, and then mounted on a floating dock, and the large blocks mounted are welded to each other, .
On the other hand, in order to increase the efficiency of ship drying, the blocks mounted on the dock are becoming larger and larger, and a new drying method such as a mega block method using a sea crane and a gigablock method has been developed.
This new shipbuilding method is evolving into a 'terablock' method of completing ships with only two blocks of very large size.
However, the use of marine cranes is time consuming and costly. Due to the limitation of the capacity of marine cranes, it is not easy to handle 'Terrablock' with a weight of at least 10,000 tons and mount it on the dock.
An embodiment of the present invention is to provide a large block mounting method in which a large block of a ship is easily mounted on a floating dock without using a crane.
According to an aspect of the present invention, there is provided a method of mounting a large block of a ship on a floating dock, comprising floating the large block at sea; Lowering a floating dock provided with a bump capable of supporting a lower portion of the large block; Moving the large block into the floating dock; Binding the large block to the floating dock; A first elevating step of elevating the floating dock until the large block is supported on the baffle; And a second elevating step of elevating the floating dock so that the bottom surface of the floating dock is located above the sea level with the large block being supported by the double helix, And adjusting a relative position of the large block with respect to the floating dock while raising the movable dock.
At this time, the position adjusting step may include: a longitudinal direction adjusting step of adjusting a longitudinal position of the large block; A width direction adjusting step of adjusting a width direction position of the large block; And a bidirectional adjustment step of adjusting the longitudinal position and the widthwise position of the large block together.
At this time, the longitudinal direction adjusting step may adjust the longitudinal position of the large block by comparing the first reference line displayed on the floating dock with the second reference line displayed on the large block.
At this time, the first reference line may be displayed in the width direction on the upper side of both side outer walls of the floating dock, and the second reference line may be displayed in the vertical direction on the left and right string outer sides of the large block.
Meanwhile, in the width direction adjusting step, the distance from the distance measuring instrument to the left and right string outer side faces of the large block may be measured using a distance measuring instrument provided on both outer walls of the floating dock to adjust the width direction position of the large block have.
In addition, the bidirectional adjustment may include: measuring a three-dimensional coordinate value of a point displayed on the large block using a three-dimensional position measuring instrument installed in the floating dock; And adjusting the lengthwise and widthwise positions of the large block by comparing the measured three-dimensional coordinate values with reference coordinate values.
The second ascending step may include measuring a three-dimensional coordinate value of a point displayed on the large block using a three-dimensional position measuring instrument installed in the floating dock; And checking whether the measured three-dimensional coordinate value coincides with the reference coordinate value.
In the step of checking whether the measured three-dimensional coordinate value coincides with the reference coordinate value, in the step of matching, the floating dock is raised until the bottom surface of the floating dock is positioned above the sea level, And in the case of non-coincidence, the large block is seated in the floating dock again.
According to one embodiment of the present invention, by moving the floating dock up and down, the large block of the vessel can be mounted on the floating dock.
According to one embodiment of the present invention, the position of the large block can be adjusted while the large block of the ship is mounted on the floating dock by using the hoisting means disposed in the floating dock.
According to an embodiment of the present invention, the position of the large block of the ship can be precisely adjusted and mounted on the floating dock by using the baseline, the distance measuring device, and the three-dimensional position measuring device.
1 is a view showing a state where a large block of a ship is mounted on a floating dock.
2 is a flowchart illustrating a method of mounting a large block according to an embodiment of the present invention.
FIG. 3 is a diagram illustrating a step of floating a large block among the large block mounting methods according to an embodiment of the present invention.
FIG. 4 is a view illustrating a step of lowering the floating dock among the large block mounting method according to an embodiment of the present invention.
FIG. 5 is a view showing a step of moving a large block into a floating dock among the large block mounting method according to an embodiment of the present invention.
6 is a view showing a step of binding a large block to a floating dock among the large block mounting method according to an embodiment of the present invention.
7 is a view showing a first elevating step of elevating a floating dock among the large block mounting method according to an embodiment of the present invention.
FIG. 8 is a view showing a second rising step of raising the floating dock among the large block mounting method according to the embodiment of the present invention.
9 is a view illustrating a process of adjusting the longitudinal position of a large block among the large block mounting methods according to an embodiment of the present invention.
FIG. 10 is a view illustrating a process of adjusting a width direction position of a large block in a large block mounting method according to an embodiment of the present invention.
11 is a view illustrating a process of adjusting the bi-directional position of a large block among the large block mounting methods according to an embodiment of the present invention.
FIG. 12 is a view illustrating a position adjustment step in a large block mounting method according to an embodiment of the present invention.
FIG. 13 is a flowchart illustrating a process of raising a floating dock in a large block mounting method according to an embodiment of the present invention.
Hereinafter, 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. The present invention may be embodied in many different forms and is not limited to the embodiments described herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and the same or similar components are denoted by the same reference numerals throughout the specification.
1 is a view showing a state in which a
Referring to FIG. 1, the
As shown in FIG. 1, the
Also, the
1, a part of the
In the present specification, the x direction is defined as the longitudinal direction, the y direction is defined as the width direction, and the z direction is defined as the vertical direction with reference to Fig. 1 (or Fig. 12).
Referring to FIG. 1, the
At this time, according to an embodiment of the present invention, the
At this time, the terra block is a block having a weight of 10000 tons or more, and can dry a single ship with only two terra blocks, for example, a bow block and a stern block.
1, the
At this time, since the
Hereinafter, a method of mounting a
2 is a flowchart illustrating a method of mounting a large block according to an embodiment of the present invention.
Referring to FIG. 2, a large block mounting method according to an embodiment of the present invention includes a five-step process.
More specifically, step S201 of floating the
That is, according to one embodiment of the present invention, in a state where the manufactured
This allows the floating
Hereinafter, each step of the method for mounting a large block according to an embodiment of the present invention will be described in detail in order.
FIG. 3 is a diagram illustrating a step (S201) of suspending the
According to an embodiment of the present invention, step S201 of floating the
Here, the step of fabricating the
At this time, according to an embodiment of the present invention, the step of manufacturing the
The step of machining the
At this time, according to an embodiment of the present invention, the processing step of the
It may also include the step of attaching an additional weight to the
As described above, when the
FIG. 4 is a view showing a step (S202) of lowering the floating
The second step S202 of lowering the floating
According to an embodiment of the present invention, by injecting seawater into the ballast tank (not shown) provided in the floating
4, the entirety of the floating
Accordingly, as will be described later, the
Referring to FIG. 4, a
That is, according to an embodiment of the present invention, the step of lowering the floating dock 100 (S202) includes a
At this time, the
Therefore, the step of lowering the floating dock 100 (S202) may be a process of lowering the floating
FIG. 5 is a view showing a step (S203) of moving a
The third step (S203) of moving the
In this case, according to an embodiment of the present invention, as shown in FIG. 5, the
At this time, a plurality of
At this time, the position where the
The step S203 of moving the
6 is a view showing a step (S204) of binding the
Step S204 of binding the
According to an embodiment of the present invention, the step S204 of binding the
6, the
According to an embodiment of the present invention, the plurality of
According to an embodiment of the present invention, the hoisting means may include at least one of a
Thus, according to one embodiment of the present invention, the
The
Accordingly, the position of the
The binding
The
Thus, according to one embodiment of the present invention, in the deck of the
FIGS. 7 and 8 are views showing a step (S205) of lifting the floating
7 and 8, the fifth step (S205) of raising the floating
At this time, according to the embodiment of the present invention, the floating
In this specification, the 'bottom surface' of the floating
Meanwhile, according to an embodiment of the present invention, the step of raising the floating dock 100 (S205) may include a first raising step and a second raising step.
Here, the first lifting step is a step of lifting the floating
7, since the
By operating the lifting means such as the
7, since the
Thus, according to one embodiment of the present invention, the first elevating step includes a positioning step of elevating the floating
According to an embodiment of the present invention, the position adjustment step may be performed by winding or loosening the
Thus, the
More specifically, the
7, loosely adjusting the distance of the
Therefore, according to the embodiment of the present invention, in the first elevating step, the
In this case, according to the embodiment of the present invention, the position of the
9 is a view illustrating a process of adjusting the longitudinal position of the
10 is a view illustrating a process of adjusting the widthwise position of the
11 is a view illustrating a process of adjusting the bi-directional position of the
FIG. 12 is a view illustrating a position adjustment step of a large block mounting method according to an embodiment of the present invention.
According to one embodiment of the present invention, the position adjustment step may include at least one of a longitudinal adjustment step, a widthwise adjustment step, and a bidirectional adjustment step.
The longitudinal direction adjusting step is a step of adjusting the position in the longitudinal direction (x direction in Figs. 1 and 12) of the
At this time, according to the embodiment of the present invention, it is possible to confirm whether the fixed position is used by using the reference line in the longitudinal direction adjustment step.
In more detail, the
9 and 12, the
That is, if the position of the
On the other hand, the width direction adjusting step is a step of adjusting the position of the
At this time, according to the embodiment of the present invention, the distance between the
For example, it is possible to confirm whether or not the
10 and 12, the
Thus, the distance from the
According to an embodiment of the present invention, the
On the other hand, the bidirectional adjustment step is a step of adjusting both the longitudinal direction and the width direction position of the
At this time, according to the embodiment of the present invention, in the two-direction adjustment step, the three-dimensional
For example, it is possible to confirm whether or not the
11 and 12, the three-dimensional
At this time, the
Accordingly, the three-dimensional coordinate value of the
As described above, according to the embodiment of the present invention, in the position adjustment step, the reference line alignment method, the method of measuring the left and right current distance values through the
The lower portion of the
On the other hand, the second lifting step is a step of raising the floating
That is, in the second rising step, the bottom surface of the floating
At this time, since the
At this time, however, since the deflection of the floating
At this time, it is possible to confirm whether or not the position is correct by using the above-described alignment confirmation using the reference line, a distance value comparison through the
For example, according to one embodiment of the present invention, the second lifting step includes measuring the three-dimensional coordinate value of the point displayed on the
More specifically, the three-dimensional coordinate value of the
At this time, the three-dimensional coordinate value of the measured
At this time, as described above, when the
According to an embodiment of the present invention, in the second ascending step, a feedback process can be additionally performed using the above-described process of confirming whether or not the
FIG. 13 is a flowchart showing a process in a step S205 of lifting the floating
13, after the floating
13, when the measured three-dimensional coordinate value of the
On the other hand, when the measured three-dimensional coordinate value of the
That is, according to an embodiment of the present invention, in the case where the
According to one embodiment of the present invention, as shown in FIG. 13, the resealing step first lowers the floating
At this time, the floating
At this time, the floating
Next, as shown in Fig. 13, after adjusting the position of the
At this time, the position adjustment of the
That is, the re-seating step may include a step of adjusting the position of the
At this time, as described above, the first elevating step may include a position adjusting step of adjusting the relative position of the
Thereafter, the floating
As a method for confirming whether or not the
As described above, the large block mounting method according to the embodiment of the present invention can increase the height of the
According to one embodiment of the present invention, by using the hoisting means such as the
In this case, according to the embodiment of the present invention, the lengthwise position of the
Also, the position of the
In addition, the longitudinal and lateral positions of the
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, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
10
16
30
100 floating
104
120
150
170
S sea level
Claims (8)
Floating the large block at sea;
Lowering a floating dock provided with a bump capable of supporting a lower portion of the large block;
Moving the large block into the floating dock;
Binding the large block to the floating dock;
A first elevating step of elevating the floating dock until the large block is supported by the baffle; And
And a second elevating step of elevating the floating dock so that the bottom surface of the floating dock is located above the sea level with the large block being supported by the double helix,
Wherein the first rising step comprises:
And a position adjusting step of continuously adjusting the relative position of the large block with respect to the floating dock so that the large block is mounted on the fixed position of the floating dock while raising the floating dock,
Wherein the second rising step comprises:
Continuously ascertaining whether or not the large block is located in the correct position of the floating dock while raising the floating dock,
The floating dock is not positioned in the correct position, the floating dock is lowered until the floating dock is separated from the large block, and then the first rising step is repeated. Way.
Wherein the position adjustment step comprises:
A longitudinal direction adjusting step of adjusting a longitudinal position of the large block;
A width direction adjusting step of adjusting a width direction position of the large block; And
And a bidirectional adjustment step of adjusting a longitudinal position and a widthwise position of the large block together.
Wherein the longitudinal direction adjusting step comprises:
Wherein a length of the large block is adjusted by comparing a first reference line displayed on the floating dock with a second reference line displayed on the large block.
Wherein the first reference line is displayed in a width direction on an upper side of both outer walls of the floating dock,
And the second reference line is displayed in the vertical direction on the outer side of the left and right strings of the large block.
Wherein the width direction adjustment step comprises:
Wherein a distance measuring instrument provided on both outer walls of the floating dock is used to measure the distance from the distance measuring instrument to the left and right string outer side surfaces of the large block to adjust the width direction position of the large block.
Wherein the bi-
Measuring a three-dimensional coordinate value of a point displayed on the large block using a three-dimensional position measuring instrument installed in the floating dock; And
And comparing the measured three-dimensional coordinate value with a reference coordinate value to adjust the longitudinal and lateral positions of the large block.
Wherein the continuously verifying comprises:
Measuring a three-dimensional coordinate value of a point displayed on the large block using a three-dimensional position measuring instrument installed in the floating dock; And
Determining whether the measured three-dimensional coordinate value matches a reference coordinate value.
Determining whether the measured three-dimensional coordinate value coincides with the reference coordinate value,
The float dock is raised until the bottom surface of the floating dock is positioned above the sea surface,
And if not, descends the floating dock until the antipodule is separated from the large block, and then repeats the first ascending step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020140032896A KR101566524B1 (en) | 2014-03-20 | 2014-03-20 | Method for loading large block of ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020140032896A KR101566524B1 (en) | 2014-03-20 | 2014-03-20 | Method for loading large block of ship |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20150109728A KR20150109728A (en) | 2015-10-02 |
| KR101566524B1 true KR101566524B1 (en) | 2015-11-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020140032896A KR101566524B1 (en) | 2014-03-20 | 2014-03-20 | Method for loading large block of ship |
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| KR (1) | KR101566524B1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105571511B (en) * | 2015-12-10 | 2019-04-02 | 上海船舶工艺研究所 | A kind of ship plank formed precision online test method |
| KR102512277B1 (en) * | 2022-09-30 | 2023-03-22 | 주식회사 디지털커브 | Method for specifying measurements of ship in ship towing system of floating docks using total stations |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100809539B1 (en) * | 2005-11-11 | 2008-03-04 | 삼성중공업 주식회사 | Method of constructing Ship using Barge |
-
2014
- 2014-03-20 KR KR1020140032896A patent/KR101566524B1/en not_active IP Right Cessation
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100809539B1 (en) * | 2005-11-11 | 2008-03-04 | 삼성중공업 주식회사 | Method of constructing Ship using Barge |
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| KR20150109728A (en) | 2015-10-02 |
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