KR100465882B1 - On-ground Deck Mating Method of Rig Structure by Jack System - Google Patents

Abstract

In the process of fabricating and assembling a rig type offshore structure, the present invention generally manufactures the upper structure and the lower structure separately and assembles them at sea after shipment or in a dry dock. The concept of deck mating method is to lift the upper structure which is dried in general land without dry dock to the top of the prefabricated substructure by using hydraulic device including strand jack and lifting device such as hoist tower and jacking leg. A manufacturing and assembling apparatus and its construction method.

The present invention is a part of the upper and lower blocks small block on the temporary support, the preceding process, including the installation of foundation reinforcement, jacking leg support (Jacking Leg Base Structure), lifting beam (Lifting Beam) for land deck mating Large-blocking process for lifting and mounting each one in place, lifting system installation process including installation of hoisting tower, jacking leg and jack system, superlifting for lifting large-blocked upper block to required height Side Skidding process that moves the lower block, which is each blocked in two pairs, to the bottom of the upper block, and transfers the deck load to the column by transferring the load of the upper block to the column of the lower block. It can be divided into mating process that connects, and through this process, the rig-type offshore structure is integrated into the general land without sea or dry dock. The work is characterized by a cost reduction and a shortening of the drying period by drawing and assembling.

Description

Ground Deck Mating Method of Rig Structure by Jack System

The present invention relates to a mating method of the rig-type offshore structure, and more specifically, unlike the marine deck mating method that has been generally made in the prior art separately produced by making a large block separate the upper and lower structures on land After lifting the upper block to the required height by using the hoisting tower and jacking leg provided with the jack system, the lower block is skidded to the empty space at the lower part of the upper block, and the upper block is placed on the lower block. It relates to a new method of manufacturing a rig-type offshore structure that forms and ships a unitary body through deck mating.

Conventional methods for manufacturing a rigged marine structure generally include a marine deck mating method, a manufacturing method in the dock and a method of manufacturing integrally on land with large cranes. However, in-dock manufacturing and large-scale crane constructions are used separately for the upper and lower structures due to the cost of expensive dock fees, the inflexibility of air due to other processes, the limitation of crane capacity, and the difficulty of on-site access during aerial work. It is a situation that is generally replaced by the marine deck mating method that is manufactured and shipped from the sea after being assembled into the sea, the larger the structure, the more severe the replacement.

The offshore deck-machining method is a float-off work in which the superstructures and substructures are manufactured separately on land, first loading the substructures on semi-submersible carriers and then floating the substructures at sea with suitable sea conditions. After the superstructures are shipped in the same way as semi-submersible or ballasting barges, they are transported at sea with sufficient mating conditions, and then the upper structures are maintained by maintaining the sufficient distance between the structures by ballasting the lower blocks. It is a method of assembling the upper structure of the lower structure.

However, the offshore deck mating method requires at least two shipments depending on the construction scale, and at the same time, the use of expensive semi-submersible carriers and barges is indispensable. In addition, there are economic and time problems due to subsequent processes such as the mobilization of mooring equipment and marine auxiliary equipment such as tugboats, and it is open to the marine environment such as water depth, current and waves during mating. Difficult to match the air and increases the risk of work. In particular, since work in places where depth is not allowed should be dredging on a large scale, there is also a problem of limiting construction order activity by further increasing the cost of construction work.

The conventional method of manufacturing and assembling the rig-type offshore structure constituted in this way has many difficulties and risks in terms of economic and time burden due to the complexity of work and suitability of the original design due to various environmental factors. Another problem was that they could not preoccupy the superiority of city technology and construction cost.

The present invention has been made to solve the above problems, the object is to secure a new concept of deck mating technology to carry out the assembly and shipment integrally by the jack system in the land by a large block of the rig-type offshore structure to the conventional construction method It is to provide technological advantages such as cost and air savings that they did not have.

Therefore, the present invention significantly reduces the costs incurred by subsequent processes such as two or more shipping concepts and other offshore operations and dredging operations, if necessary, which is essential in the conventional offshore decking method, and shortens the air and reduces the risk of offshore operations. The purpose is to provide such.

In addition, compared to the manufacturing method in the dock and the large crane construction method, the dock use cost can be greatly reduced, and the on-site work is facilitated by the land work by eliminating the risk of on-site access due to high-altitude work, and at the same time, the use of large crane is reduced. This has also led to cost savings. In particular, the weight that was limited to the capacity of the crane by using the strand jack, hoisting tower and jacking legs can be used to limit the use weight according to the capacity of the limit to overcome the limitations.

In addition, the present invention has optimized the shape, location and support point of the strand jack through the appropriate structural analysis in consideration of self deflection during mating of the structure, and also sag and structural deflection due to heavy weight The pre-setting method was used to maximize the compatibility with the original design in order to eliminate the design deviation caused by the design.

The land deck mating according to the present invention is a part of the upper and lower blocks, which are small blocks on the temporary support, the preceding process including the installation of foundation reinforcement, jacking leg base structure, lifting beam, etc. Large-blocking process for mounting them in place, as well as a lifting system installation process including the installation of hoisting towers, jacking legs and jack systems, and superlifting for lifting large-blocked upper blocks to the required height. Side Skidding process that moves the lower block, which is each blocked in two pairs, to the bottom of the upper block, and transfers the deck load to the column by transferring the load of the upper block to the column of the lower block. It can be divided into mating process that connects, and through this process, the work of manufacturing and assembling the rig-type offshore structure on the land rather than at sea is integrated. And a gong.

1 is a front view assembly configuration of the rigged offshore structure completed onshore deck mating on the skidway (Skidway) for the integral load (Loadout)

2 is a side assembly configuration of the rig-type offshore structure completed on the land deck mating on the skidway for unitary shipment

Figure 3 is a general diagram for the skidway and foundation reinforcement pile and slab foundation work for performing land deck mating

4 is an assembly process and configuration of the lifting beam and jacking leg base structure as a temporary structure for lifting the upper block

FIG. 5 is a large block diagram for assembling small blocks and forming upper and lower blocks using cranes and other equipment. FIG.

FIG. 6 is a process diagram of installing a lifting tower and a cathead to control the movement of the upper block during lifting;

7 is a process for installing and connecting a jacking leg with a preceding jacking leg support using crane equipment;

8 is an installation process diagram of the strand jack equipment on the winch tower side

9 is an installation process diagram of the strand jack equipment on the jacking leg side;

10 is an installation position and a process diagram of a power pack for hydraulic control of jack equipment

11 is a superlifting process diagram for lifting the upper block to the required height

12 is a side skidding process diagram of placing two pairs of lower blocks into a lower position of a lifted upper block;

FIG. 13 is a mating equipment and working process diagram of completing assembly by placing an upper block on each column of the lower block; FIG.

14 is a detailed view of the winch tower and seedling

15 is a detailed view of the winches and self-aligning system (Self Aligning System)

16 is a detailed view of a lifting attachment;

FIG. 17 is a detailed view of a crosshead attached to an upper portion of the jacking leg and attached with a fixed anchor.

<Description of the symbols for the main parts of the drawings>

(11): upper block (21): starboard lower block

(22): Port lower side block (31): Power pack

(32): Strand Jack

(33): Horizontal Hydraulic Jack

(34): Vertical Hydraulic Jack

(35): Vertical Screw Jack

(36): Grease Inlet

(37): Horizontal Screw Jack

(38): Strand Bundle (39): Fixed Anchorage

(40): Hand Jack (41): Crane

(51): Lifting Tower (52): Jacking Leg

(53): Lifting Beam (54): Crosshead

(55): Cathead

(57): Jacking Leg Base Structure

(58): Access floor (60): Shipping direction concrete mat

(61): Shipment direction Skidshoe (62): Teflon Pad

(64): Chain Pipe (65): Guide Rail

(66): Steel Pipe (70): Concrete Slab Type Foundation

(71): Lifting Attachment

(73) Side skid shoes

(74): Side Skid Direction Concrete Mat

(75): Lifting Padeye

76: Self Aligning System

(77): Shim Plate (78): Pile Flange

(79): Box Girder

(80): Lifting Tower DiagonalBrace

(81): Cathead Diagnonal Brace

(82): Hold Down Bolt (83): Connection Brace

(86): Shear Plate (87): Bolt

(88): guide plate

(89): slide plate

(90): Vulcanized Rubber (91): Guide Jig

(101): winding jack side strand jack insertion portion

102: fixed anchor side strand jack insertion portion

103: winch (104): sling wire

(105): Moon Pool

Hereinafter, the configuration and operation of the present invention with reference to the accompanying drawings.

Figure 1 shows the overall assembly completeness of the rig-type offshore structure carried out in accordance with the present invention in the front direction,

Figure 2 shows the overall assembly completeness of the rig-type offshore structure carried out in accordance with the present invention in the side direction, in which the upper block (11) means a deck (Deck) in operation in two pairs for ease of operation The divided blocks are divided into lower blocks a and b (21 and 22).

3 to 13 is a step-by-step illustrating the manufacturing and assembly process of the illustrated rigged offshore structure,

First, FIG. 3 is a concrete slab type of the steel pipe 66 filing part of the jacking leg 52 is laid and the lifting tower 51 is placed for the safe load transfer to the ground during lifting. The construction of the foundation 70 and concrete mats 60 and 74 in the direction of shipment and side skidding are illustrated. The foundation grounds here are respectively designed to resist the tensile and compressive loads of the hoisting tower 51 and the 610 mm diameter steel pipe 66 to sufficiently resist the vertical load from the jacking legs 52.

4 shows the installation steps of the jacking leg support (Jacking Leg Base Structure) 57 and the lifting beam (53), wherein the jacking leg support (57) is completed in the pre-poured steel pipe (66) It is welded so that it can be evenly transmitted to the ground load from the jacking leg 52, Kwonyangbo 53 is the shape and support point that the upper block 11 can generate a minimum structural stress through sufficient structural analysis And is selected to be supported by a Self Aligning System 76 at that position.

In addition, the present invention facilitates on-site assembly with the steel pipe 66 when the jacking leg support 57 is installed and a pile flange 78 and a box girder to support the weight of the jacking leg support 57. Box Girder (79) to be manufactured separately and provided, Kwonyangbo (53) has a vulcanized rubber (Vulcanized Rubber) to control the deck level (Deck Level) due to the movement of the upper block 11 and the deformation of the structure during lifting Self Aligning System (76) using 90) is provided.

Details of the winches 53 and the self aligning device 76 are shown in FIG. 15.

5 is a schematic diagram illustrating a process of assembling a part of the small block upper block 11 after the installation of the jacking leg support 57 and the hoisting beam 53 onto the temporary support using a crane 41 to form a large block. do.

6 shows the installation process of the winch tower 51 and the cathead 55 in order to control the movement of the upper block due to wind or self weight during lifting after the large block of the upper block 11 is completed. It is. The hoisting tower 51 and the seedling 55 are designed to support about 40% of the total expected load.

The hoisting tower 51 has a guide rail 65 in the vertical direction to perform horizontal movements of the left, right, and front and rear sides by supporting force with the lifting attachment 71 on the side of the upper block 11 when lifting. Control and at the same time ensures that the upper block 11 is safely lifted in place. The guide rail 65 also extends to the foundation to reduce the overturning moment of the hoisting tower 51 due to the offset of the lifting load.

The connection between the hoisting tower 51 and the foundation 70 is designed to sufficiently transmit the tensile and compressive loads, and in particular, the rear of the hoisting tower 51 and the seedling 55 to prevent structural overturning due to tension. Tensile Diagonal Brace (80,81) was installed in the, and is connected to the concrete foundation 70 by a hold-down bolt (82) to enable a smooth load transfer with the foundation (70).

The hoisting tower 51 and the tomb 55 are connected by bolts 87 to prevent structural damage due to moments, and considering the anticipated deflection caused by the self-load of the upper block 11 during lifting. To compensate for the sag, the lifting tower 51 has a preset of 50 mm and the head 55 has a preset length of 100 mm to maximize the compatibility with the original design.

Details of these connecting members are shown in FIG. 14.

FIG. 7 illustrates the installation process of the jacking leg 52 and the crosshead 54 through the moon pool 105, in which the padeye 75 and the sling are illustrated. The jacking leg 52 in position by the connected crane 41 is connected to the splice bolt by the jacking leg support 57 and the field worker. In particular, in order to minimize the connection error with the jacking leg support 57 that may occur when the jacking leg 52 is connected using a hand jack (Hand Jack) (40) installed in the winding cable 53 before connecting with bolts Adjust the error in the horizontal direction.

In addition, the present invention provides a slide plate (Slide) on the winch beam 53 in which direct contact of the jacking leg 52 occurs to prevent energy loss due to friction between the jacking leg 52 and the winch 53 during lifting. A plate inlet (89) is constrained with a guide plate (88) and a grease inlet (36) is designed to inject grease for the purpose of reducing friction.

Details in this regard are shown in FIG. 15.

FIG. 8 illustrates a process of installing a strand jack 32 and a fixed anchor 39 on a winch tower 51 side, wherein the assembly is about 1.0m longer than the length required on land. The assembled strand jack 32 is first placed into the crane 41 and bolted to the jack insertion portion, and then the fixing anchor 39 is bolted at the anchor insertion portion. Then, in order to adjust the looseness of the strand bundle 38, the hydraulic pressure of the jack 32 is temporarily operated to increase the tension of the strand bundle 38.

FIG. 9 shows the installation process of the strand jack 32 on the jacking leg 52 side as in the installation process of the strand jack 32 on the hoisting tower 51 side. Strand jack equipment is moved to the crane 41 through the Moon Pool (105) and bolted to the jack insertion portion 101 provided in the winch (53) so that interference does not occur in order.

FIG. 10 illustrates a process of installing a power pack 31 using a crane 41 to enable the operation of a hydraulic device, and in this case, adjusts to be positioned as close to the hydraulic jack position as possible to a long oil pipe. The hydraulic loss due to this is excluded in advance.

11 illustrates a superlifting process of lifting the upper block 11 to the upper side of the lower blocks 21 and 22 after completing the step-by-step and reviewing of the above-described processes. However, before the operation is performed, the upper block 11 is ground level by applying pressure to the strand jack 32 step by step (25/50/75/100%) at 1.1 times the expected load for safe operation. About 300mm from the After that, the jacks are shut down for about an hour to review the overall structural behavior, as well as the ground deflection, the safety of the temporary structures and the hydraulic system. After the review process is completed, the upper block 11 is lifted with a monitoring interval step by step.

In addition, the present invention is designed to ensure the lifting of the upper block in position by placing a lifting accessory 71 on the side of the upper block 11 in contact with the guide rail 65 of the hoisting tower (51). 16 shows in detail the lifting attachment 71 attached to the side of the upper block 11 to control the horizontal movement of the upper block 11 during lifting. This allows the horizontal movement of the upper block 11 by using the hydraulic jacks 33 and screw jacks 37 installed at the left, right, front and back, when the work is moved out of position during lifting. Here, the hydraulic jack 33 serves to adjust the position again when the left, right and front and rear movement of the deck and the adjustment of the position of the screw jack 37 during the initial and progress of the lifting. The screw jack 37 is responsible for controlling the movement of the upper block 11, which may occur during lifting, through the guide rail 65 attached to the side of the winch tower 51. Similar to the hoisting cloth 53, a grease injection part 36 capable of injecting grease is provided on the front portion of the screw jack 37 for the purpose of reducing friction with the guide rail.

12 is a winch of two pairs of blocked lower blocks a, b (21, 22) assembled on a skidway consisting of an active skidshoe 73 and a concrete mat 74 for side skidding. (Winch) 103 and the skid process using the active shoe 73 is shown. At this time, the winch assembly eliminates the installation of the winch assembly twice by connecting to a padeye manufactured in the skid direction of the lower blocks a and b (21, 22) with one sling wire 104. It is designed to allow work to be performed in the shortest time possible for sideskiding of blocks.

Active shoe (61, 73) is designed to optimize structural stability when deflection due to load of structure by installing four hydraulic jacks between two beams connected by hinges. In order to prevent structural damage of the mounted structure due to the concentrated load of the structure, which can be caused by deflection of the structure, it receives a uniform distribution load, which is called an Active Cushion Effect. At the beginning of the side-skidding, there is a stroke of about 50 mm to have an active cushion effect, but if it is placed on the skidway in the loading direction for mating and shipping, the brace connection of the lower blocks a and b (21, 22) is removed. Jack down again. However, once the brace is connected, the hydraulic jack in the active shoe is operated again to form the required stroke for the purpose of safe load transfer during mating.

FIG. 13 illustrates a process of mating the upper block 11 onto the columns of the lower blocks 21 and 22 after welding the lower two blocks. The screw jack 35 and the hydraulic jack 34 are corrected on the top of the chain pipe 64 in the column in order to remove the self-deflection of the deck structure and the geometric deviation of the upper part of the column. , The upper block 11 operates horizontally in the left, right and front and rear directions through the hydraulic jack 33 installed in the horizontal direction in the lifting attachment 71 installed on the side of the deck on the side of the lifting tower 51. The mating surface of the lower block (21, 22) and the mating surface of the upper block 11 is corrected to be in a straight line, and the guide jig 91 provided to be inclined at the top of the column is the upper block (11). Make it easy to match with this column.

By repeating the monitoring and repositioning operation through the hydraulic jack system, the gap between the column and the deck is minimized, and the welding operation is performed after reconfirming the expected mating position. Here, the eight hydraulic jacks 34 located at four points on the chainpipe 64 through the hydraulic monitoring channel of the strand jack 32 allow the 24% of the load of the upper block 11 to be evenly distributed. (32) was to receive. That is, the hydraulic jack 34 on the chain pipe 64 constantly supports 24% load while simultaneously performing a hydraulic check while gradually lowering the strand jack 32 on the hoisting tower 51 side and the jacking leg 52 side. Do it. When this operation is repeated, the upper block 11 is placed on the column, which is responsible for the load of 24%. Screw jacks 35, which are installed in pairs with the hydraulic jacks 34, are provided with the hydraulic jacks 34 in order to provide ease of fixing and welding in place, which are easy to be lost due to pressure loss of the hydraulic jacks 34 after the mating step is set. It is set and removed when welding is complete.

In the next load transfer process, the pressure of the strand jack 32 supporting 76% of the deck load is reduced, and the hydraulic pressure is reduced step by step by 25% until the load is completely transferred to the column side. Jacks (32, 33, 34, 35) equipment and temporary structures (51, 52, 53, 54, 55, 57) installed for mating after checking the abnormality that may occur during the completion of work using a crane (41), etc. Remove it and complete the land deck mating operation.

As described above, according to the present invention, the rigged offshore structure is largely divided into an upper block and a lower block, and thus, unlike a deck decking method, which is conventionally made using a semi-submersible transport ship and a barge in the sea, a hoisting tower And hoisting devices, such as jacking legs and hydraulic devices, such as strand jacks, are used for mating on land, greatly reducing costly offshore operations, and greatly reducing air due to integrated shipping. Can be.

In addition, even in the case of mating in a changing marine environment, it is difficult and dangerous to perform welding in place accurately and quickly, whereas the method of the present invention is performed on land so that the ease of field access and the suitability of the original design are achieved. Of course, since the subsequent processes that have been performed in the conventional ocean right away at the site are eliminated at all or are performed on land, a significant reduction of air can be obtained. In addition, as the capacity of the jack is appropriately increased, the existing weight constraints are no longer a problem, and thus, the invention is one that can greatly affect the technical advantage and reduction in manufacturing cost when construction orders for rig-type offshore structures are made.

Claims (8)

Onshore deck mating in the manufacture of rig-type offshore structures includes the preceding processes including the installation of foundation reinforcement, jacking leg supports, and hoisting beams; A large-blocking process of assembling a portion of the upper and lower blocks, which are small blocks on the temporary support, in place; A hoisting device installation process including installation of a hoisting tower, a jacking leg and a jack system; A superlifting step of lifting the large block top block to a required height; A side skidding step of moving the lower blocks each blocked into two pairs to the lower end of the upper block; A land deck mating method of a rig ship by a jack system performed by a mating process of transferring a load of an upper block to a column of a lower block and connecting a deck to a column. In the preceding process including the foundation reinforcement for performing onshore deck mating of the rigged marine structure of claim 1; In the above-described base, the 610 mm diameter steel pipe 66 can sufficiently resist the vertical load from the jacking leg 52 against the tensile and compressive loads of the hoisting tower 51, and the jacking leg support 57 is It is completely welded to the cast steel pipe 66 so that the load from the jacking leg 52 can be evenly transferred to the ground. The winding beam 53 has a sufficient structural analysis so that the upper block 11 receives the minimum structural stress. Obtain the shape and support points that can occur and are supported by the self-aligning device 76 at the location. When the jacking leg support 57 is installed, the assembly of the jacking leg support 57 can be easily carried out with the steel pipe 66 and the weight of the jacking leg support 57 can be obtained. The pile flange 78 and the box girder 79 are manufactured separately so as to support them, and the winch beam 53 controls the deck level due to the movement of the upper block 11 and the deformation of the structure during lifting. To make the sulfide rubber (90) A self-alignment land line inning league deck mating method according to the jack system that is characterized by forming a device (76). A large block process for blocking the upper block, the lower block to form the integrated block of claim 1; After the installation of the jacking leg support 57 and the hoisting beam 53, the upper block 11 for assembling a part of the small block upper block 11 on the temporary support for lifting of the deck block using the crane 41 )and; Side skidway for the assembly and side skid of the lower blocks (21, 22) in the process; The lower blocks 21 and 22 assembled on the side skidway are manufactured inside the lower blocks 21 and 22 to form a pad eye 75 as a winch 103 without burden of repositioning the pooling system. A land deck mating method of a rig ship by a jack system which performs side skidding using a one winch pulling system which pulls the lower blocks 21 and 22 in the direction of a loading skidway at a time. A lifting device installation process for lifting an upper block to a required height for mating the lower block of claim 1; In the process, the pile flange 78 and the box girder (79) for the ease of on-site welding of the jacking leg support (57) and the cast steel pipe (66); Connecting the jacking leg support 57 and the jacking leg 52 using the splice flange and bolt 87 in the process; When the jacking leg 52 is installed, a hand jack 40 is installed to allow a sufficient bolting margin by minimizing the occurrence error by enabling horizontal movement when a joint error occurs between the jacking leg 52 and the jacking leg support 57. The land deck mating method of the league ship by the jack system characterized by the above-mentioned. The method of claim 4; Tensile material (80, 81) installed to support the tensile force generated due to the overturning moment of the lifting tower (51) and seedlings (55) during the lifting of the upper block (11); The hold down bolts 82 and the lifting towers for lifting to securely transfer the tensile force generated in the leg 52 portions of the tension member 80 and 81 and the hoisting tower 51 to the concrete slab foundation 70 A base plate for distributing the concentrated load generated on each leg 52 of the 51 to the concrete foundation 70; Lifting tower (51) for smoothing the position of the upper block (11) during lifting through the restraint with the lifting attachment (71) attached to the side of the upper block (11) and to control the movement of the left and right and the front and rear directions A guide rail 65 and a lifting appendage 71 attached to the legs 52 of the &lt; RTI ID = 0.0 &gt; The grease injection portion 36 formed to allow a smooth lifting by sufficiently reducing the friction between the contacting surface of the jacking leg 52 and the hoisting beam 53, the lifting accessory 71 and the guide rail 65 through the continuous injection of grease during lifting. )Wow; The screw jack 37 is installed to ensure the position of the upper block 11 during the lifting through the friction between the contact surface of the lifting attachment 71 and the guide rail 65, and plays a role of pushing to have a clearance when correcting the position. A hydraulic jack (33, 34) device; The guide formed to remove the free space generated when lifting between the jacking leg 52 and the hoisting beam 53 to control the movement of the upper block 11 and to make the hoisting beam 53 slip through the injection of grease. Plate 88 and slide plate 89; Bolts and bearings that act as a hinge to suppress the moment transfer to the lifting tower (51) when the seedlings (55) placed on the top of the lifting tower (51); A connecting member 83 formed to connect between two pairs of hoisting towers 51 installed on the starboard and the port side of the upper block 11 to increase the rigidity of the hoisting tower 51 when lifting; A preset of 50mm of the lifting tower 51, 100mm of the seedlings 55 and 100mm so as to correct the structural sag of the ground and seedlings 55, etc. generated during lifting to increase the suitability of the original design; A jacking leg support 57 for uniformly transferring the load transmitted from the jacking leg 52 to the steel pipe 66 at the time of lifting; Installing a winch beam 53 at a support point installed to minimize structural stress of the upper block 11 during the lifting; A self-aligning pad made of a self-aligning device 76 and a sulfide rubber 90 which serves to stably adjust the level of the upper block 11 during the lifting; Land deck mating method of the rig ship by the jack system, characterized in that the crosshead 54 is installed at the top of the jacking leg 52 and the fixed anchor 39 of the strand jack 32 is installed at the time of lifting. . In the superlifting process, the operation of lifting the upper block higher than the lower block for the side skidding of claim 1; In this process, for smooth positioning of the lower blocks 21 and 22, pressure is applied to the strand jack 32 step by step at 1.1 times the expected load, and the upper block 11 is lifted about 300 mm from the reference level for 1 hour. In addition, the upper block 11 which contacts the guide rail 65 of the hoisting tower 51 while examining the overall structural behavior generated in the meantime, as well as the deflection of the ground, the safety of the temporary structure and the hydraulic system, etc. The lifting attachment 71 is placed on the side of the to ensure the lifting of the upper block 11 in place, so that the hydraulic jack 33 and screw jacks installed at the left, right, front and back when the work is moved out of position during lifting. (37) to enable horizontal movement of the upper block 11, wherein the hydraulic jack 33 is the left and right and front and rear movement of the deck during the initial and progress of the lifting and the position adjustment of the screw jack 37 When needed, The screw jack 37 controls the movement of the upper block 11 that may occur during lifting through the guide rail 65 attached to the side of the winch tower 51. And a grease injection portion (36) capable of injecting grease on the front portion of the screw jack (37). In the side-skidding process of moving the lower block of claim 1 to the lower portion of the lifted upper block in order; The two pairs of block lower blocks 21 and 22 assembled on the skidway composed of the active skid shoe 73 and the concrete mat 74 are used for the side skid using the winch 103 and the active shoe 73. The winch assembly is connected to the pad eye in the skid direction of the lower blocks 21 and 22 with one sling wire 104, thereby eliminating the installation of the winch assembly twice so that the work can be performed in a short time as possible to side skid the block. At the beginning of the side-skidding, a 50mm stroke is placed on the skidway in the direction of shipment for mating and shipping, but once again jacked down or braceed for brace connection of the lower blocks 21 and 22 When the connection is completed, the jack system, characterized in that the required stroke is formed by operating the hydraulic jack in the active shoe 73 in order to transmit a safe load during mating. Athletics League One deck mating process line. In the mating process to transfer the load to the column of the lower block located in the lower block of claim 1 to complete the mating operation; In order to eliminate the deflection of the deck structure itself and the geometrical deviation of the upper part of the column, the deflection is corrected by using the screw jack 35 and the hydraulic jack 34 on the top of the chain pipe 64 in the column. Through the hydraulic jack 33 installed in the horizontal direction in the lifting attachment 71 installed on the deck side of the upper block 11 is operated to enable horizontal movement in the left, right and front and rear directions of the lower block 21, 22, the mating surface of the column and the upper block 11 is corrected to be in a straight line, and the guide jig 91 provided to be inclined at the top of the column is characterized in that the upper block 11 is easily mated with the column. Ground deck mating method for league ships by the jack system.