KR102497603B1 - Variable rail apparatus for caisson transportation, rail assembly for caisson transportation having the same, rail setting method using the same and caisson construction method - Google Patents

Abstract

A caisson conveying variable rail device is disclosed, and the caisson conveying variable rail device includes: a base portion extending in a longitudinal direction; a rail structure extending in a longitudinal direction on the base portion and guiding a longitudinal movement of a transfer lifting device for lifting the harbor caisson; and a variable movement unit providing a driving force for moving the rail structure in a transverse direction.

Description

Caisson transfer variable rail device, caisson transfer rail assembly including the same, rail setting method and caisson construction method using the same }

The present application relates to a caisson transport variable rail device, a caisson transport rail assembly including the same, a rail setting method using the same, and a caisson construction method.

As shown in the figure above, the port caisson (reinforced concrete structure) is manufactured sequentially and in stages, such as bottom plate production (1st stage), wall fabrication (2nd stage), curing (3rd stage), and FD (F/D) ship loading (4th stage). In the next step, the caisson is lifted and transported with the rail installed on the rail part on the floor of the production site and the caisson skidding jack on the rail.

The rail parts are arranged at intervals of 5 to 5.5 m, and the rail parts may be fixedly installed. Therefore, in order to manufacture a different type of caisson, additional reinforcement is required for the foundation bottom plate as the rails must be dismantled and reinstalled, or a hydraulic jack must be partially placed in a location other than the wall part inevitably.

In other words, the rails are re-installed according to the caisson specifications, and the level of the rails must be constructed to be exactly horizontal each time they are installed. In particular, if it is not leveled, when the caisson is lifted and moved by the 'caisson transfer hydraulic system', the load distribution between the hydraulic units may not be smoothly performed, which may result in overloading of some hydraulic units or excessive load on some sections of the caisson base plate. Therefore, rail part construction (disassembly/reinstallation and leveling work) is a very important factor in each stage of caisson production.

Therefore, in the prior art, when constructing a caisson, since the rail part construction must be performed again according to the caisson specifications, workability and economic feasibility may be deteriorated in the manufacture of a caisson.

The background technology of the present application is disclosed in Korean Patent Publication No. 10-2005-0105820.

The present invention is to solve the problems of the prior art described above, to provide a caisson transport variable rail device capable of adjusting the position of the rail according to caisson specifications, a caisson transport rail assembly including the same, a rail setting method using the same, and a caisson construction method aims to

However, the technical problems to be achieved by the embodiments of the present application are not limited to the technical problems as described above, and other technical problems may exist.

As a technical means for achieving the above technical problem, the caisson transfer variable rail device according to one aspect of the present application, the base portion extending in the longitudinal direction; a rail structure extending in a longitudinal direction on the base portion and guiding a longitudinal movement of a transfer lifting device for lifting the harbor caisson; and a variable movement unit providing a driving force for moving the rail structure in a transverse direction.

The caisson transfer rail assembly according to one aspect of the present disclosure includes a plurality of caisson transfer variable rail devices according to one aspect of the present disclosure, wherein the plurality of caisson transfer variable rail devices according to one aspect of the present disclosure are transversely They can be spaced apart.

Rail setting method according to one aspect of the present invention is a method of setting rails in a harbor caisson manufacturing plant using the caisson transfer variable rail device according to one aspect of the present invention described above, of a harbor caisson determined according to the type of harbor caisson to be manufactured. The transverse position of the rail structure may be adjusted so that the rail structure is positioned below the connection point between the foundation bottom plate and the wall portion of the harbor caisson.

A caisson construction method according to one aspect of the present application includes the steps of (a) manufacturing a foundation bottom plate; (b) manufacturing a wall; (c) curing the wall; And (d) including the step of loading on the FD line, using the rail setting method according to one aspect of the present invention described above in at least one of the steps (a) to (d) of the plurality of the rail structures It may further include adjusting the transverse position of at least a part.

The above-described problem solving means are merely exemplary and should not be construed as intended to limit the present disclosure. In addition to the exemplary embodiments described above, additional embodiments may exist in the drawings and detailed description of the invention.

According to the above-mentioned problem solving means of the present application, since the rail structure is a variable type capable of transverse movement, the distance between the rail structures and the location of the rail structures are changed according to the caisson specifications and type (in particular, according to the location where the caisson walls are installed) It can be. Accordingly, the position of the rail structure can be adjusted/changed according to the specifications and type of the caisson without the need to dismantle and re-install the rail structure to correspond to the specifications of the caisson manufactured at the caisson production site, thereby improving construction cost and construction period. effect can be expected. In addition, since the wall gap within the caisson, which was limited, can be expanded within the range that the rail structure can accommodate (the range that can be varied), optimization of the caisson cross section can also be expected.

1 is a schematic perspective view of a gantry house to which a caisson conveying variable rail device according to an embodiment of the present invention can be applied.
Figure 2 is a schematic transverse cross-sectional view of the caisson transfer variable rail device according to an embodiment of the present application.
Figure 3a is a schematic conceptual longitudinal cross-sectional view for explaining that the side wall block of the rail structure of the caisson transfer variable rail device according to an embodiment of the present application is coupled to the main body.
Figure 3b is a schematic conceptual longitudinal cross-sectional view of the side wall portion of the rail structure of the caisson transfer variable rail device according to an embodiment of the present application and the main body coupled portion.
Figure 4a is a schematic conceptual plan view of each block and the main body before a pair of side wall portions of the rail structure of the caisson transfer variable rail device according to an embodiment of the present application are coupled to each other.
Figure 4b is a schematic conceptual plan view of a portion in which a block and a main body are coupled to a pair of sidewalls of a rail structure of a caisson transfer variable rail device according to an embodiment of the present application.
Figure 5 is a schematic conceptual longitudinal cross-sectional view of a part of the rail structure of the caisson conveying variable rail device according to an embodiment of the present application.
Figure 6 is a schematic transverse cross-sectional view of a caisson transfer variable rail device according to an embodiment of the present application provided with a fixing unit.
7 is a schematic conceptual diagram for explaining the lateral position adjustment of each step performed during the construction of the caisson of the rail structure of the caisson transfer variable rail device according to an embodiment of the present invention.

Hereinafter, embodiments of the present application will be described in detail so that those skilled in the art can easily practice with reference to the accompanying drawings. However, the present disclosure may be implemented in many different forms and is not limited to the embodiments described herein. And in order to clearly describe the present application in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.

Throughout this specification, when a part is said to be “connected” to another part, it is not only “directly connected”, but also “indirectly connected” or “electrically connected” with another element in between. "Including cases where

Throughout the present specification, when a member is referred to as being “on,” “above,” “on top of,” “below,” “below,” or “below” another member, this means that a member is located in relation to another member. This includes not only the case of contact but also the case of another member between the two members.

Throughout the present specification, when a part "includes" a certain component, it means that it may further include other components without excluding other components unless otherwise stated.

In addition, in the description of the embodiments of the present application, terms related to direction or position (lateral direction, longitudinal direction, upper side, upper surface, upper side, lower side, lower side, etc.) are set based on the arrangement state of each component shown in the drawings. will be. For example, referring to FIG. 1 , the 4 o'clock to 10 o'clock direction may be a horizontal direction, and the 2 o'clock to 8 o'clock direction may be a vertical direction. 2, the 3 o'clock - 9 o'clock direction is generally the lateral direction, the 12 o'clock direction is generally the upper side, the generally 12 o'clock direction is the upper surface, and the generally 12 o'clock direction is the upper side, In general, if the 6 o'clock direction is the lower side and the generally lower side faces the 6 o'clock direction, the portion generally facing the 6 o'clock direction may be the lower part.

The present application relates to a caisson transport variable rail device, a caisson transport rail assembly including the same, a rail setting method using the same, and a caisson construction method.

First, a caisson transfer variable rail device (hereinafter referred to as 'this variable rail device') according to an embodiment of the present application will be described.

1 is a schematic perspective view of a gantry house to which a variable rail device according to an embodiment of the present disclosure can be applied. For reference, a caisson production site can be understood as a broad concept including a gantry house that manufactures caisson walls. For example, a caisson workshop can be understood as a comprehensive concept including a base plate manufacturing workshop, the gantry house for manufacturing walls, a workshop for curing walls and shipping them to FD ships, and the like.

This deformable rail device is a deformable rail device for transporting a caisson that is installed with respect to a manufacturing site of a harbor caisson and moves at least a part of the harbor caisson.

The harbor caisson is manufactured in the order of 1st stage base plate production, 2nd stage wall fabrication by slipform structure, and 3rd stage curing. can Referring to FIG. 1, in this process, the foundation bottom plate manufactured in step 1 can be transported to the Gantry House through a transfer hydraulic device (Skidding Jack), and the caisson wall is manufactured with the slip-form structure 91 in the Gantry House. Two steps may be performed. While the second step is being performed in the Gantry House, the first step for manufacturing other base plates can be performed at the same time, and the caisson finished manufacturing in the Gantry House can be moved out of the Gantry House for curing, and the other base plates manufactured It can be moved into this gantry house, and wall fabrication for other base plates can be made.

In this way, the caisson can be manufactured and moved step by step and can be continuously manufactured. For this purpose, the foundation base plate manufacturing site where the base plate is manufactured, the gantry house where the wall is manufactured, and the manufacturing site where curing and shipment to the FD line are performed A rail device for transporting the caisson may be provided in at least some of the caisson production sites including the caisson.

The present deformable rail device relates to a deformable rail device for transporting a caisson installed in at least a part of a caisson production site for manufacturing a harbor caisson as described above and moving at least a portion of the caisson. The position of the rail structure can be adjusted accordingly. Through this, it is unnecessary to dismantle and reinstall the rail according to the caisson specifications, which was performed when manufacturing the existing caisson, and the case where the transfer hydraulic device is inevitably placed in a position other than the wall part due to the existing fixed rail during the caisson transfer process can be excluded. Accordingly, according to the present variable rail device, it is advantageous in terms of constructability, economy, and safety compared to the prior art. It is explained in detail below.

Figure 2 is a schematic transverse cross-sectional view of a deformable rail device according to an embodiment of the present application.

Referring to FIG. 2 , the deformable rail device includes a base portion 1 extending in a longitudinal direction. The base part 1 may be made of a material including steel. Also, the base part 1 may be in the form of a plate. Such a base portion 1 may be referred to as a steel plate, but is not limited thereto. In addition, a sliding pad may be provided (interposed) between the base part 1 and the rail structure 2 so that the rail can more smoothly move left and right. For example, the sliding pad may be a pad containing one or more of Neoprene, PTFE, and the like. In addition, the base part 1 may extend in the longitudinal direction with respect to the entire section in which the rail structure 2 is disposed, but is not limited thereto. As another example, the base part 1 may be extended in the longitudinal direction corresponding to the section where the variable movable unit part 3 is installed, and the variable movable unit part 3 may be provided as necessary in consideration of the caisson standard and construction conditions. It may be provided at least in part in sections other than the section in which is installed.

Also, referring to FIG. 2 , the deformable rail device includes a rail structure 2 . The rail structure 2 is disposed extending in the longitudinal direction on the base portion 1 . In addition, the rail structure 2 guides the longitudinal movement of the transport lifting device for lifting the harbor caisson. The transfer lifting device can lift the harbor caisson located on its upper side and is movable in the longitudinal direction along the rail structure (2). For example, the transport lifting device may be a transport hydraulic device. Since the transfer hydraulic system is obvious to those skilled in the art, a detailed description thereof will be omitted.

More specifically, referring to FIG. 2 , the rail structure 2 includes a foundation member 21 extending in the longitudinal direction on the base portion 1 . The base member 21 may be provided to be movable in the transverse direction on the base part 1 . For example, the base member 21 may be a steel plate.

In addition, the rail structure 2 includes a pair of side wall portions 22 extending upward from one side of the base member 21 in the transverse direction and the other side in the transverse direction, respectively. For example, the side wall portion 22 may be a steel plate. Each of the pair of side wall portions 22 may be located on the inner side in the transverse direction than the outer end of the base member 21 in the transverse direction. That is, the outer end of the base member 21 in the transverse direction may be located outside the transverse direction than the portion where the side wall portion 22 is formed. Accordingly, the pair of side wall portions 22 of the base member 21 can be stably supported.

In addition, referring to FIG. 2 , the rail structure 2 may include an upper member 23 disposed on a pair of side wall portions 22 and extending in the longitudinal direction, through which the transfer lifting device moves. The upper member 23 may be provided as a rail on which the movement of the transport lifting device is made. For example, the upper member 23 may be a steel plate. The upper member 23 may be disposed on the pair of side wall portions 22 so as to be supported by the pair of side wall portions 22 . An outer end of the upper member 23 in the transverse direction may be located outside the side wall portion 22 in the transverse direction. Accordingly, the end portion of the upper member 23 located outside the side wall portion 22 in the transverse direction can be provided as a portion to which the transfer lifting device is mounted.

Also, referring to FIG. 2 , the deformable rail device includes a deformable moving unit unit 3 that provides a driving force for moving the rail structure 2 in the transverse direction.

Referring to FIG. 2 , the rail structure 2 may be variably moved in the transverse direction on the base part 1 by the variable moving unit part 3 . Accordingly, a rail for transporting at least a part of the caisson performed in the process of manufacturing the caisson may be devised as a variable type. Since the rail structure 2 is movable in the transverse direction by the variable moving unit unit 3, the position of the rail structure 2 in the transverse direction can be adjusted according to the specifications of the caisson.

Referring to FIG. 2 , the width of the base unit 1 in the transverse direction may be set in consideration of the variable maximum movement amount of the rail structure 2 in the transverse direction. The rail structure 2 can be moved transversely on the base part 1 . Therefore, the transverse width of the base portion 1 is the transverse contact width of the rail structure 2 with the base portion 1 (ie, the transverse contact width between the base portion 1 and the foundation member 21) and It can be set greater than the sum of the maximum lateral movement distances (transverse variable maximum movement amount) on the base portion 1 of the rail structure 2 .

Illustratively, the variable moving unit unit 3 may be provided by a transverse hydraulic device that provides a driving force for moving the rail structure 2 along the transverse direction. Although not shown in the drawing, the transverse hydraulic device may be connected to the rail structure 2 so as to push or pull the rail structure 2 in the transverse direction. The stroke amount of the transverse hydraulic device may be set in consideration of the variable maximum movement amount of the rail structure 2 described above. In addition, the transverse hydraulic device may be provided in a plurality of arrangements at intervals along the longitudinal direction (longitudinal direction) of the rail structure 2 .

Meanwhile, as another embodiment of the variable movable unit unit 3, referring to FIG. 2 , the variable movable unit unit 3 passes through the rail structure 2 in the transverse direction and is screwed to the rail structure 2 It may include a screw member 31 having a male screw line (for reference, a portion where the male screw line is formed in FIG. 2 is indicated by reference numeral 319) on an outer circumferential surface so as to be possible. The screw member 31 may be a rod having a thread on an outer circumferential surface. The screw member 31 and the rail structure 2 may be screwed together so that the rail structure 2 moves in the transverse direction as the screw member 31 rotates in its circumferential direction. Accordingly, when the screw member 31 is rotated, the rail structure 2 screwed with the screw member 31 may be moved in a relatively lateral direction with respect to the screw member 31 . For example, when the screw member 31 is rotated in one direction of its circumferential direction, the rail structure 2 can be moved in one side in the lateral direction, and when the screw member 31 is rotated in the other direction of its circumferential direction, the rail structure (2) can be moved to the other side in the transverse direction. For reference, in the present application, movement in a lateral direction may mean one or more of movement to one side in the lateral direction and movement to the other side in the lateral direction. In addition, the rotation of the screw member 31 may mean at least one of rotation of the screw member 31 in one direction of the circumferential direction and rotation of the screw member 31 in the other direction of the circumferential direction.

In addition, referring to FIG. 2, the region 319 in which the male thread of the screw member 31 is formed is the portion passing through the rail structure 2 in the longitudinal direction (lateral direction) of the screw member 31, the rail structure ( 2) may include a part in the transverse direction of the part passing through and the other part in the transverse direction of the part passing through the rail structure (2). In addition, the area where the male screw line of the screw member 31 is formed is formed so that the rail structure 2 can be moved to one side or the other side in the lateral direction within a range of a variable maximum movement amount in the lateral direction by rotation of the screw member 31 can

In addition, this screw member 31 can be rotated by manpower or various tools or devices controlled by manpower, and screw fastening proceeds according to the rotation direction and amount of rotation, and the rail structure 2 moves along the transverse direction. can be moved In the rotation of the screw members 31, the rotation of the screw members 31 disposed at intervals along the longitudinal direction (longitudinal direction) with respect to the same rail structure 2 allows a predetermined tolerance between each screw member 31. Rotation synchronization on a line that does not deviate from the range may be important in terms of preventing deformation or damage of the rail structure 2 . For such rotational synchronization, when the total lateral movement distance of the rail structure 2 is a, the plurality of screw members 31 do not rotate at once by the amount of rotation corresponding to the distance a, It is preferable to divide the distance by a above into a plurality of units, and then rotate the screw member 31 step by step (sequentially) by a rotation amount corresponding to one unit. Illustratively, when n screw members 31 are screwed to the rail structure 2 at intervals along the longitudinal direction, only by an amount of rotation corresponding to b (one unit) which is a part of the total distance a. By rotating each of the n screw members 31 to move the rail structure 2 only by b, and then repeating the unit movement of each of the n screw members 31 again by b, the rail structure 2 ) is eventually moved in the lateral direction by a. However, when rotating each of the n screw members 31 corresponding to a distance b corresponding to one unit distance, it is most desirable to precisely synchronize all of these n screw members 31 with each other and simultaneously rotate them at once. , If simultaneous rotation based on such accurate phase synchronization is difficult, the work may be divided in such a way that some of the n screw members 31 first rotate in correspondence with a distance b. Considering the case where some of the n screw members 31 move first even in the movement of the distance b, it is preferable that one unit distance b is set to a distance within the elastic deformation region of the rail structure 2. . In other words, in the movement of the rail structure 2 by a distance b, which is one unit distance, a part of the rail structure 2 connected (fastened) to the screw member 21 is already moved by b, and the other part When the part of the rail structure 2 connected (fastened) to the screw member 21 is in a state where it has not yet moved as much as b, the resulting deformation can be an elastic deformation rather than a plastic deformation, a distance b that is one unit distance. is preferably set.

In addition, referring to FIG. 2 , a hole 220 for screw coupling into which a screw member 31 is inserted may be formed in each of the pair of side wall portions 22 in the transverse direction. In addition, on the inner circumferential surface of the hole 220 for screw coupling, a female screw thread capable of being screwed with the male screw thread of the screw member 31 may be formed. That is, the outer circumferential surface of the screw member 31 and the inner circumferential surface of the hole 220 for screwing can achieve the aforementioned screw coupling.

Figure 3a is a schematic conceptual longitudinal cross-sectional view for explaining that the side wall block of the rail structure of the caisson transfer variable rail device according to an embodiment of the present application is coupled to the main body, Figure 3b is according to an embodiment of the present application A schematic conceptual longitudinal cross-sectional view of a portion where a side wall block and a main body of a rail structure of a caisson transfer variable rail device are coupled, and FIG. 4A is a pair of rail structures of a caisson transfer variable rail device according to an embodiment of the present invention. A schematic conceptual plan view of each of the block and the main body before the side wall unit is coupled, and FIG. 4B is a block of a pair of side wall unit and the main body of the rail structure of the caisson transfer variable rail device according to an embodiment of the present application. This is a schematic conceptual plan.

Referring to FIGS. 3A to 4B , each of the pair of side wall portions 22 may include a main body 221 . The main body 221 of each of the pair of side wall parts 22 may extend in the longitudinal direction. In addition, the main body 221 extends upward from a portion of the base member 21 (one side of the base member 21 in the transverse direction and the other side in the transverse direction, respectively) corresponding to the description of the side wall portion 22 described above It can be, it can support the upper member (23). According to this, each main body 221 of the pair of side wall portions 22 may be disposed at intervals in the transverse direction and extend in the longitudinal direction. In addition, a coupling groove 2211 that is open upward and recessed downward may be formed in the main body 221 .

Also, referring to FIGS. 3A to 4B , each of the pair of side wall portions 22 may include a block 222 . At least a part of the block 222 may be inserted into the coupling groove 2211 . In addition, the above-described hole 220 for screwing is formed in the block 222, and the block 222 may be screwed with the screw member 31. In other words, the block 222 may be screwed with the screw member 31 . Accordingly, during the construction of the rail structure 2, after the pair of main bodies 221 are disposed on the base member 21 so as to extend in the longitudinal direction at intervals in the transverse direction, the pair of Each of the blocks 222 is seated in the coupling groove 2211 of each of the pair of main bodies 221 in a screwed state with the screw member 31, and can be easily installed. According to this, a pair of sidewalls ( 22) and the pair of side wall parts 22, since the construction of the screw member 31 can be made, the operation of screwing the screw member 31 to the pair of side wall parts 22 at the site is Ease of construction can be secured because it does not need to be performed.

3A and 3B, the portion inserted into the coupling groove 2211 of the coupling groove 2211 and the block 222 is, when the block 222 is seated in the coupling groove 2211, the block ( 222) may be provided to be interdigitated to limit rotation. Accordingly, even if the screw member 31 is rotated, the block 222 is not rotated and can move in a relatively lateral direction with respect to the screw member 31 .

For example, referring to FIGS. 3A and 3B , a longitudinal cross section of the coupling groove 2211 may be angular. In addition, a cross section in the longitudinal direction of the portion inserted into the coupling groove 2211 of the block 222 may be angular. For example, the cross section of the coupling groove 2211 in the longitudinal direction may be rectangular. In addition, a longitudinal cross section of a portion inserted into the coupling groove 2211 of the block 222 may be rectangular.

Meanwhile, referring to FIGS. 4A and 4B , the block 222 may include a body portion 2221 inserted into the coupling groove 2211 . That is, the portion inserted into the coupling groove 2211 of the block 222 may be the body portion 2221. According to the foregoing, the body portion 2221 may be seated in the coupling groove 2211, may be engaged with the coupling groove 2211, and may have a rectangular cross section in a longitudinal direction.

Also, referring to FIGS. 4A and 4B , the block 222 may include a pair of protrusions 2222 protruding from the body 2221 to one side in the transverse direction and the other side in the transverse direction, respectively. At this time, the hole 220 for screw coupling may be formed crossing the body portion 2221 and the pair of protrusions 2222 in the transverse direction.

In addition, referring to FIGS. 4A and 4B, the block 222 is an insertion groove 2224 extending in the vertical direction so that portions located on one side and the other side of the longitudinal direction of the coupling groove 2211 of the main body 221 are inserted, respectively. ) may include an insertion groove forming portion 2223 protruding from each of the pair of protrusions 2222 to one side in the longitudinal direction and the other side in the longitudinal direction, respectively. According to this, the block 222 may form a pair of insertion grooves 2224 on one side and the other side in the longitudinal direction, respectively, and each of the pair of insertion grooves 222 has a coupling groove 2211 of the main body 221 A part located on one side in the longitudinal direction of the part and a part located on the other side in the longitudinal direction of the coupling groove 2211 of the main body 221 may be respectively inserted. Accordingly, the block 222 can be engaged with the main body 221 on one side and the other side in the longitudinal direction, and movement in the transverse direction of the block 222 (ie, the main body 221 of the block 222) relative lateral movement) can be limited. Therefore, when the screw member 31 rotates, the main body 221 is interlocked with the block 222 so that the block 222 and the main body 221 can be moved in the transverse direction together.

Referring to FIGS. 4A and 4B , a cross section obtained by cutting the block 222 as described above in a horizontal direction may have an H shape. Also, referring to FIG. 3 , the height of the upper surface of the block 222 may correspond to (same as) the height of the upper surface of the main body 221 . Accordingly, the upper member 23 may be horizontally disposed on the side wall portion 22 .

As described above, these blocks 222 are in a state in which each of the pair of blocks 222 is screwed to the screw member 31, and each body portion 2221 of the pair of blocks 222 is a pair of By being inserted downward into each coupling groove 2211 of the main body 221, it can be seated on the main body 221. Accordingly, it is possible to easily construct the rail structure 2 coupled with the screw member 31 .

In addition, the block 222 is screwed to the screw member 31, and the block 222 is rotated so that the screw member 31 and the screw hole 220 screwed together can be prevented from being deformed. It is preferable to be provided with a material of higher strength than the material of the main body 221 to be engaged (settled) so that this is limited. In this case, according to the block 222 coupling method, economic feasibility can also be secured in contrast to the case where the entire side wall portion 22 of the rail structure 2 is made of a high-strength material.

Figure 5 is a schematic conceptual longitudinal cross-sectional view of a part of the rail structure of the caisson transfer variable rail device according to an embodiment of the present application (which may be a cross-sectional view A-A of FIG. 2).

Referring to FIG. 5 , guide protrusions 211 protruding downward from the lower surface and extending in the transverse direction may be formed on the base member 21 . In addition, a guide groove 10 extending in a transverse direction may be formed in the base portion 1 by being recessed downward to engage with the guide protrusion 221 . The guide protrusion 211 and the guide groove 10 may limit the movement of the rail structure 2 in the longitudinal direction and guide the movement in the lateral direction. For example, each of the guide protrusion 211 and the guide groove 10 may have a semicircular cross section in the longitudinal direction. According to this, the transverse movement of the rail structure 2 may be guided by the engagement of the guide protrusion 221 and the guide groove 10 . Accordingly, the rail structure 2 may not be separated when moving in the lateral direction. In other words, movement of the rail structure 2 in the lateral direction can be performed stably while minimizing positional fluctuation of the rail structure 2 in the longitudinal direction due to engagement between the guide protrusion 221 and the guide groove 10 .

Also, referring to FIG. 5 , a plurality of guide protrusions 211 may be formed at intervals in the longitudinal direction. In addition, a plurality of guide grooves 10 may be formed at intervals in the longitudinal direction to correspond to (engage with) each of the plurality of guide protrusions 211 . That is, a plurality of guide points (points where the guide protrusion 221 and the guide groove 10 are engaged) for guiding the movement of the rail structure 2 in the lateral direction may be formed at intervals in the longitudinal direction.

Also, referring to FIG. 5 , the base part 1 may include a plurality of base plates 11 disposed adjacently along the longitudinal direction. In this case, the guide groove 10 described above on the base plate 11 may be formed at a point corresponding to the guide protrusion 211 . In addition, referring to FIG. 5, the base part 1 may include a base block 12 disposed between a plurality of base plates 11 (in this case, the plurality of base plates 11 are spaced apart may be arranged, and the base block 12 may be located on the gap). In this case, the guide groove 10 described above may be formed in the base block 12, and the base block 12 may be arranged so that the guide groove 10 is formed at a point corresponding to the guide protrusion 211 . The length of the base plate 11 may be variously set in consideration of construction conditions, transportation conditions of the base plate 11 , and the like. In this way, the base part 1 may be divided into a base plate 11 or a base block 12 .

In addition, the base part 1 may be provided in a form in which the base plate 11 and the base block 12 are integrated.

In addition, the thickness of the base plate 11 in the vertical direction and the thickness of the base block 12 in the vertical direction may be different from each other or may be the same. When they are the same, the height of the upper surface of the base plate 11 and the height of the upper surface of the base block 12 may be the same, and the height of the lower surface of the base plate 11 and the height of the lower surface of the base block 12 may be the same. there is. In addition, when the thickness of the base plate 11 in the vertical direction and the thickness of the base block 12 in the vertical direction are different from each other, the height of the upper surface of the plate 11 and the height of the upper surface of the base block 12 are the same this is preferable

Also, for reference, each of the base plate 11 and the base block 12 may be made of a material constituting the above-described base part 1.

Also, for reference, referring to FIG. 2 , the variable moving unit unit 3 may include a support 32 supporting the screw member 31 . The support 32 may support the screw member 31 so as to be rotatable in its circumferential direction. For example, the support 32 may be provided on one side and the other side in the transverse direction, respectively, to support the screw member 31 .

Figure 6 is a schematic transverse cross-sectional view of a variable rail device according to an embodiment of the present application provided with a fixing unit.

Referring to FIG. 6 , the deformable rail device may include a fixing part 4 that selectively limits movement of the rail structure 2 in the lateral direction. For example, after the lateral position of the rail structure 2 is adjusted by lateral movement, the position can be fixed so that the lateral movement is limited by the fixing part 4, and then, if necessary, the fixing part 4 The lateral movement may be made possible by the release of the fixation of the . The fixing part 4 may be implemented in various forms such as fastening bolts. For example, the fixing part 4 fixes the rail structure 2 in the form of fastening by inserting a bolt into a hole formed in the base member 21 of the rail structure 2, or the base member of the rail structure 2 ( 21) may be fixed using bolts to fix (hold) the base member 21 so as to prevent separation in at least one of the lateral direction and the upward direction.

In addition, this deformable rail device may be provided in at least a part of the caisson manufacturing site. Specifically, referring to FIG. 1, a rail installation portion 92 may be formed on at least a portion of the floor of a caisson manufacturing plant that is recessed downward and extends in the longitudinal direction. can be installed In addition, a plurality of the deformable rail device may be installed on the floor at intervals in the transverse direction. Specifically, a plurality of rail installation units 92 may be formed at intervals in the transverse direction, and the present variable rail device may be installed for each of the plurality of rail installation units 92 .

According to the foregoing, in the present deformable rail device, the base part 1 is disposed to extend in the longitudinal direction on the floor (eg, the rail installation part 92), and the rail structure 2 supports the base part 1 It is possible to move in the transverse direction (one or the other side of the transverse direction) along the

Further, according to the foregoing, the variable moving unit unit includes the screw members 31, and the screw threads engaged with the screw threads of the screw members 31 are formed on the inner circumferential surface of each of the pair of side wall portions 22 of the rail structure 2. Since the hole 220 for screw coupling is formed, the rail structure 2 can be moved left and right (lateral direction) by rotating the screw member 31 . In other words, according to the foregoing, the rail structure (which can be referred to as 'variable rail') 2 moves in the lateral direction (left and right) by the rotation of the screw member ('screwed bar') 31 This is possible, and a screw coupling hole 220, which is a 'threaded hole', is formed in the side wall portion 22 (steel plate) of the rail structure, so that the screw member 31, which is a 'threaded bar', and can be concluded. As a result, the position of the rail structure 31 is adjusted according to the caisson specifications, so that the transfer lifting device can be accurately positioned.

In addition, guide grooves 10 may be formed in the base portion 1 , and guide protrusions 211 may be formed in the rail structure 2 . Accordingly, when the rail structure 2 moves in the lateral direction, the guide protrusion 211 can be moved in the lateral direction along the guide groove 10, so that the rail structure 2 can move horizontally without being separated.

Also, according to the foregoing, the rail structure 2 may be fixed in position by the fixing part 4 after adjusting the position in the lateral direction.

In addition, according to the foregoing, the rail structure 2 can be positioned differently from each other in at least some of the steps so that load imbalance does not occur during the lifting and transportation of the caisson at each step performed in the manufacture of a harbor caisson. there is.

7 is a schematic conceptual diagram for explaining the lateral position adjustment of each step performed during construction of the caisson of the rail structure of the caisson transfer variable rail device according to an embodiment of the present invention.

For example, referring to FIG. 7, the caisson can be manufactured according to the process of manufacturing the base plate, manufacturing the wall, curing, and shipping on the FD ship. In this process, at intervals in the transverse direction At least some of the plurality of rail structures 2 disposed may be positioned in a transverse direction so that the load of the bottom plate is equally applied to each of the plurality of rail structures 2 when the foundation bottom plate is manufactured. In addition, at least some of the plurality of rail structures 2 may be adjusted in transverse position so that at least some of the plurality of rail structures 2 are located below the connection point between the foundation bottom plate and the wall portion when the wall is manufactured. In addition, at least some of the plurality of rail structures 2 may be adjusted in transverse position during curing so that uncured portions are stably supported until curing is completed. In addition, at least some of the plurality of rail structures 2 may be adjusted to have a transverse position set so that the transfer to the FD line is stably performed when the manufactured caisson is transferred to the FD line (for example, after curing, There is an opening in the upper wall of the caisson, and the opening is closed with a steel formwork and transported to the FD line. Considering this point, the transverse position can be set to ensure stable transfer). In this way, the rail structure 2 has the necessary lateral position for each step of manufacturing the base plate, manufacturing the wall, curing, and loading to the FD ship, which are performed during the manufacture of the harbor caisson. position can be adjusted in the transverse direction.

In addition, the present application provides a caisson transfer rail assembly according to an embodiment of the present application. A caisson transfer rail assembly according to an embodiment of the present application includes the above-described deformable rail device. More specifically, the caisson transport rail assembly according to an embodiment of the present application includes a plurality of the above-described deformable rail devices. A plurality of present deformable rail devices are arranged at intervals in the transverse direction. Since this has been described in the above variable rail device, a detailed description thereof will be omitted.

In addition, the present application provides a rail setting method (hereinafter referred to as 'this rail setting method') according to an embodiment of the present application. However, this rail setting method uses the above-described variable rail device, and shares the same or corresponding technical features and configurations as the present variable rail device. Therefore, descriptions overlapping with those described in the present variable rail device described above will be simplified or omitted, and the same reference numerals will be used for the same or similar configurations.

This rail setting method is a rail setting method for manufacturing a harbor caisson using the above-described variable rail device.

In this rail setting method, the rail structure 2 is positioned in the transverse direction so that the rail structure 2 is located on the lower side of the connection point between the foundation bottom plate of the harbor caisson and the wall part of the harbor caisson, which is determined according to the type of harbor caisson to be manufactured. Adjust.

The transfer lifting device for lifting and moving the caisson is capable of longitudinal movement along the rail structure 2. Since the transfer lifting device lifts and moves the caisson, the transfer lifting device considers the structural safety of the caisson base plate by the transfer lifting device. It can be placed where the foundation bottom plate and the wall part meet. Accordingly, the rail structure 2 is preferably arranged to be located at a point where the base plate and the wall part of the caisson where the transfer lifting device located on the rail structure 2 is manufactured meet.

In addition, the harbor caisson manufactured at the harbor caisson manufacturing site may be one of a plurality of types having different specifications, and the point where the foundation bottom plate and the wall part meet may be different for each type, depending on the specifications of the caisson when manufacturing the caisson. , it may be necessary to adjust the position of the rail structure 2 in the lateral direction. This rail setting method adjusts the transverse position of the rail structure 2 through the movement of the rail structure 2 in the lateral direction according to the specifications of the caisson, so that the base plate of the caisson on which the rail structure 2 is manufactured It can be set at the point where the wall part and the wall part meet (ie, the lower surface of the foundation bottom plate where the caisson wall part is installed).

The caisson is manufactured step by step in the order of base plate (step 1), wall fabrication (step 2), curing (step 3), and shipment by FD ship (step 4). With a skidding jack (ie a transfer hydraulic system) the caisson is raised and moved for the next step. Conventionally, the rail was fixedly installed on the rail part, and as a result, the rail position cannot be changed according to the caisson type and specification, so the rail must be re-installed according to the caisson specification (ie, the lower surface of the base plate where the caisson wall part is installed) for each project. do. Even so, depending on the shape of the caisson, the transfer device may be located on the foundation bottom plate without a wall part, and additional cross-sectional reinforcement of the foundation bottom plate at that location may be required.

On the other hand, according to the present invention, the rail structure 2 is a variable type capable of transverse movement, and the distance between the rail structures 2 and the rail structure (in particular, according to the location where the caisson wall is installed) according to the caisson specification and type 2) can be changed. Accordingly, the process of dismantling and reinstalling the rails in the caisson workshop is not required, and the position of the rails can be adjusted/changed according to the caisson specifications and type, so effects such as cost and construction period improvement can be expected. In addition, since the wall spacing within the caisson, which was limited, can be expanded within a range that the deformable rail structure 2 can accommodate, optimization of the caisson cross section can also be expected.

Hereinafter, a caisson construction method (hereinafter referred to as 'this caisson construction method') according to an embodiment of the present application is provided. However, the present caisson construction method uses the above-described present rail setting method, and shares the same or corresponding technical features and configurations as those described above. Therefore, descriptions overlapping with those described in the foregoing will be simplified or omitted, and the same reference numerals will be used for the same or similar components.

Referring to FIG. 7 , the present caisson construction method includes a step (step 1) of manufacturing a foundation bottom plate. When the step of manufacturing the foundation bottom plate is performed, the rail structure 2 may have a transverse position set so that the plurality of rail structures 2 equally bear the load of the foundation bottom plate. In addition, the step of manufacturing the foundation bottom plate can be performed outside (outside) the gantry house. Since the step of manufacturing the base plate is obvious to those skilled in the art, a detailed description thereof will be omitted.

In addition, referring to FIG. 7 , the present caisson construction method includes a step (step 2) of manufacturing a wall. The step of fabricating the wall may be performed in the gantry house. In addition, in the step of manufacturing the wall, the wall may be manufactured using a slip foam structure. In addition, in the step of manufacturing the wall, a predetermined curing of the wall may be performed. For example, partial curing can be achieved to the extent that the wall can stand on its own without the support of the slip form.

In addition, referring to FIG. 7 , between the step of manufacturing the base plate and the step of manufacturing the wall, a step of adjusting the transverse position of at least some of the plurality of rail structures 2 may be performed. In the step of adjusting the transverse position of the rail structure 2, at least a portion of the plurality of rail structures 2 is located below the connection point between the foundation bottom plate of the caisson and the wall part to be manufactured of the caisson Step of manufacturing the foundation bottom plate It can be performed between and the step of manufacturing the wall. Accordingly, in the step of manufacturing the wall, the wall can be manufactured while being supported by the rail structure 2 where the connection point between the wall and the base plate is to be formed, so that stable manufacturing can be achieved.

For reference, while the step of manufacturing the wall in the gantry house is performed, the base plate of the next caisson may be manufactured where the step of manufacturing the outer base plate of the gantry house is performed.

In addition, referring to FIG. 7, the present caisson construction method includes a step (step 3) of curing the wall. The step of curing the walls can be performed outside (outside) the gantry house. In other words, so that the next caisson can be made within the gantry house, the wall has been manufactured up to the top and partial curing has progressed to the extent that the wall can stand on its own without the support of the slip form (eg, about 7 days have elapsed After the caisson in the state) is moved to the outside of the gantry house using a transfer lifting device, the remaining curing may proceed (eg, for a period of about 20 days).

Also, referring to FIG. 7 , a step of adjusting the transverse position of at least some of the plurality of rail structures 2 may be performed between the step of manufacturing the wall and the step of curing. In this step, at least a portion of the plurality of rail structures 2 has a position capable of stably supporting the uncured portion until the curing of the uncured caisson is completed. The transverse position of at least some of them can be adjusted.

In addition, referring to FIG. 7, the present caisson construction method includes a step (step 4) of shipping the manufactured caisson to an FD ship after the step of curing.

Also, referring to FIG. 7 , between the curing step and the loading step on the FD line, a step of adjusting the transverse position of at least some of the plurality of rail structures 2 may be performed. In the above step, at least some of the plurality of rail structures 2 have a transverse position set so that at least some of the plurality of rail structures 2 are stably transported to the FD line of the manufactured caisson Transverse position of at least a part of the plurality of rail structures 2 can be adjusted (for example, after curing, there is an opening in the upper wall of the caisson, and the opening is closed with a steel formwork and transported to the FD line. Considering this point, the transverse position can be set so that stable transfer can be achieved. has exist).

In this way, the present caisson construction method uses the above-described rail setting method in at least one of the steps of manufacturing the base plate, manufacturing the wall, curing the wall, and shipping to the FD ship, using a plurality of and adjusting the transverse position of at least some of the rail structures (2).

Also, for reference, in the present caisson construction method, movement of at least a portion of the caisson by the transfer lifting device (movement of the bottom plate, movement of the manufactured caisson, etc.) is carried out by the transfer lifting device lifting at least a portion of the caisson to the rail This can be done by moving along the structure (2).

The above description of the present application is for illustrative purposes, and those skilled in the art will understand that it can be easily modified into other specific forms without changing the technical spirit or essential features of the present application. Therefore, the embodiments described above should be understood as illustrative in all respects and not limiting. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope of the present application is indicated by the following claims rather than the detailed description above, and all changes or modifications derived from the meaning and scope of the claims and equivalent concepts thereof should be construed as being included in the scope of the present application.

1: base part
2: rail structure
21: Foundation member
22: side wall
220: hole for screwing
221: main body
2211: coupling groove
222: block
2221: body part
2222: protrusion
2223: insertion groove forming portion
2224: insertion groove
23: lower member
3: variable moving unit unit
31: screw member
32: support
4: fixed part

Claims (12)

A variable rail device for transporting a caisson that is installed at the manufacturing site of a harbor caisson and moves at least a part of the harbor caisson,
a base portion extending in the longitudinal direction;
a rail structure extending in a longitudinal direction on the base portion and guiding a longitudinal movement of a transfer lifting device for lifting the harbor caisson; and
Including a variable moving unit that provides a driving force for moving the rail structure in the transverse direction,
The variable movable unit unit includes a screw member passing through the rail structure in a transverse direction and having a male screw thread on an outer circumferential surface so as to be screwed into the rail structure. According to claim 1,
The rail structure is variably moved in a transverse direction on the base portion by the variable moving unit unit,
The transverse width of the base portion is set in consideration of the transverse variable maximum movement amount of the rail structure, caisson conveying variable rail device. delete According to claim 1,
The rail structure,
a foundation member extending in a longitudinal direction on the base portion;
a pair of side wall portions extending upward from one side of the foundation member in the transverse direction and the other side in the transverse direction, respectively; and
An upper member disposed on the pair of sidewalls and extending in the longitudinal direction, wherein the transfer lifting device moves,
A hole for screwing into which the screw member is inserted is formed in the transverse direction on each of the pair of side wall portions,
The caisson conveying variable rail device, wherein a female screw thread capable of screwing with the male screw line of the screw member is formed on the inner circumferential surface of the screw coupling hole. According to claim 4,
Each of the pair of side wall portions,
A main body that is open upward and has a downwardly recessed coupling groove formed therein; and
The screw coupling hole is formed and is screwed with the screw member, and includes a block at least partially inserted into the coupling groove,
The part inserted into the coupling groove and the coupling groove of the block, when the block is seated in the coupling groove, that is provided to be engaged to limit the rotation of the block, caisson conveying variable rail device. According to claim 5,
The longitudinal cross section of the coupling groove is angular,
The longitudinal cross section of the portion inserted into the coupling groove of the block is angular, caisson conveying variable rail device. According to claim 5,
The block is
a body portion inserted into the coupling groove;
a pair of protrusions protruding from the body to one side in the transverse direction and the other side in the transverse direction, respectively; and
Includes an insertion groove forming portion protruding from each of the pair of protrusions to one longitudinal side and the other longitudinal side, respectively, so that an insertion groove into which portions located on one side and the other side of the coupling groove of the main body are inserted are inserted do,
The screw coupling hole is formed to cross the body portion and the pair of protrusions in the transverse direction, caisson conveying variable rail device. According to claim 4,
The base member is formed with a guide protrusion protruding downward from the lower surface and extending in the transverse direction,
In the base portion, a guide groove is formed that extends in the transverse direction by being depressed downward to engage with the guide protrusion,
The transverse movement of the rail structure is guided by the engagement of the guide protrusion and the guide groove, caisson conveying variable rail device. A caisson transport rail assembly comprising a caisson transport variable rail device according to claim 1,
Including a plurality of the caisson conveying variable rail devices,
A plurality of the caisson conveying variable rail devices are disposed at intervals in the transverse direction, caisson conveying rail assembly. A rail setting method in a harbor caisson manufacturing plant using the caisson transfer variable rail device according to claim 1,
Rail setting method of adjusting the transverse position of the rail structure so that the rail structure is located below the connection point between the foundation bottom plate of the harbor caisson and the wall portion of the harbor caisson, which is determined according to the type of harbor caisson to be manufactured. In the caisson construction method,
(a) manufacturing a base plate;
(b) manufacturing a wall;
(c) curing the wall; and
(d) loading on a FD vessel;
The caisson construction method further comprises adjusting the transverse position of at least some of the plurality of rail structures using the rail setting method according to claim 10 in at least one of the steps (a) to (d) Including, caisson construction methods. According to claim 11,
Adjusting the transverse position of the rail structure,
At least some of the plurality of rail structures are performed between the step (a) and the step (b) so that at least a portion of the base plate of the harbor caisson and the lower side of the connection point of the wall portion of the harbor caisson, caisson construction method.

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