Cable storing and shipping method

Abstract

To provide a cable storage and shipping method capable of quickly and at low cost responding to cable supply request from a different installation site.SOLUTION: A cable storage and shipping method includes: a storage step of storing a plurality of cables; and a shipping step of shipping the stored cables, the storage step includes: a first step of placing an N-th cable container (N is a natural number) on a turntable; a second step of rotating the turntable to wind the N-th cable around the N-th cable container; a third step of removing the turntable from the N-th cable container; and a fourth step of storing the N-th cable container together with the N-th cable, the shipping step selects a specific cable container and includes: a fifth step of placing a specific cable container on the turntable; and a sixth step of paying out the specific cable from the specific cable container and loading it onto a cable installation barge.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present disclosure relates to a cable storage and shipping method for storing cables at a predetermined location and shipping the cables in response to a shipping request. [Background technology]

[0002] Conventionally, after a large cable such as a submarine cable is manufactured, when the cable is transported to the site where it is to be laid, the cable is wound around a turntable mounted on a cable-laying barge from a cable factory, and the cable is loaded onto the barge and transported to the site. For example, Patent Document 1 discloses an underwater cable-laying barge equipped with a turntable. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2000-217218 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the cable-laying barge of Patent Document 1, the cable is wound and stored in a cable storage device equipped with a turntable from the factory, and when the barge arrives at the site, the turntable is rotated to unwind the cable stored in the cable storage device and throw the cable into the water.

[0005] In order to load a cable onto such a cable-laying barge and transport the cable to the site, the cable stored on land must be wound and stored in a cable storage device on the barge. When temporarily storing the cable on land, it is possible to store the cable in layers by winding it in a cable container equipped with a turntable. In this way, when it becomes necessary to load the cable onto a ship, the turntable on land can be rotated to allow the cable to be paid out from the cable container on land onto the ship.

[0006] However, when a cable that has already been laid on the seabed needs to be replaced, it is necessary to quickly supply a new cable to the site. In order to meet this requirement, the cable factory needs to manufacture the replacement cable in advance before the need for replacement occurs.

[0007] However, when manufacturing multiple different cables in advance for cable replacement at each of the different installation sites, the cables are stored by stacking and winding them in a cable container on a turntable. In this way, even if a request arises for a lower layer cable to be shipped before an upper layer cable in one cable container, the lower layer cable cannot be removed until the upper layer cable is shipped first. In addition, if multiple turntables are prepared to correspond to each installation site, the increase in the number of turntables increases the cost of storing the cables. In addition to when replacing cables, similar problems can occur when laying new cables due to fluctuations in construction progress.

[0008] Therefore, an object of one aspect of the present disclosure is to provide a cable storage and shipping method that can quickly and inexpensively meet cable supply requests from different installation sites. [Means for solving the problem]

[0009] A cable storage and shipping method according to one embodiment of the present disclosure includes a storage step of storing a plurality of cables, and a shipping step of shipping the stored cables, the storage step including a first step of placing an Nth cable container (N is a natural number) on a turntable, a second step of rotating the turntable to wind the Nth cable around the Nth cable container, a third step of displacing the turntable relative to the Nth cable container around which the Nth cable has been wound, to remove the turntable from the Nth cable container, and a fourth step of storing the Nth cable container from which the turntable has been removed, together with the Nth cable. a fifth step of selecting a specific cable container in which a specific cable for which a shipping request has occurred is wound up among the M stored cables from the first cable container to the Nth cable container, and placing the specific cable container on the turntable; and a sixth step of rotating the turntable to unwind the specific cable from the specific cable container and load it onto a cable laying barge. Effect of the Invention

[0010] According to one aspect of the present disclosure, the multiple cables wound in the storage process are not stacked in the same cable container but are housed in different cable containers, so that even if a shipping request occurs for any of the multiple cables being stored, the specific cable can be shipped by attaching a turntable to the specific cable container housing the specific cable for which a shipping request has occurred and paying out the specific cable to a cable laying barge. Therefore, regardless of which cable a shipping request is made for, the shipping request can be met quickly. [Brief description of the drawings]

[0011] [Figure 1]FIG. 1 is a front view showing a storage location where a cable container and a turntable are arranged, and a laying barge adjacent to the storage location, in a cable storage and shipping method according to a first embodiment. [Diagram 2] FIG. 2 is a perspective view of the cable container of FIG. [Diagram 3] FIG. 3 is a perspective view of a turntable used to rotate the cable container of FIG. [Figure 4] 4(a) to (g) are explanatory views for explaining the operation of the cable container and the turntable in FIG. [Diagram 5] FIG. 5 is a front view showing a state in which the cable container of FIG. 1 is placed on a dolly and moves toward a turntable. [Figure 6] FIG. 6 is a front view showing the state in which the cable from the laying barge in FIG. 1 is wound into a cable container at a storage site. [Figure 7] FIG. 7 is a front view showing a state in which the cable unwound from the cable container at the storage site in FIG. 1 is wound into the cable housing section of the barge. [Figure 8] FIG. 8 is a flowchart illustrating the flow of a cable storage method. [Figure 9] FIG. 9 is a flowchart illustrating the flow of a cable shipping method. [Figure 10] 10(a) to 10(h) are explanatory views illustrating the operation of a cable container and a turntable in the cable storage and shipping method according to the second embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] (First embodiment) FIG. 1 is a front view showing a storage site 100 in which a cable container 2 and a turntable 3 are arranged, and a cable-laying barge 1 adjacent to the storage site 100, in a cable-storing and shipping method according to a first embodiment. As shown in FIG. 1, the storage site 100 for a cable C is provided in a location adjacent to a port where the cable-laying barge 1 can be anchored, so that the cable C transported by the cable-laying barge 1 can be stored on the spot. In other words, the storage site 100 is land adjacent to a quay facing the sea. The cable-laying barge 1 has a cable housing section 21 which is a cable container, and a turntable 22 which rotates the cable housing section. The cable C manufactured in a cable factory is loaded into the cable housing section 21 of the cable-laying barge 1, and the cable-laying barge 1 loaded with the cable C moves to the storage site 100, and the cable-laying barge 1 unloads the cable C from the cable-laying barge 1 into the storage site 100.

[0013] In the storage location 100, a plurality of cable containers 2 capable of storing the cable C therein are arranged. In the storage location 100, a turntable 3 is arranged which enters below the cable containers 2 and rotates the cable containers 2 to be used for winding or unwinding the cable C. The number of turntables 3 is smaller than the number of cable containers 2. In this embodiment, the number of turntables 3 is one.

[0014] FIG. 2 is a perspective view of the cable container 2 of FIG. 1. As shown in FIG. 2, the cable container 2 has an annular storage space X for storing a cable C. The cable container 2 has a disk-shaped bottom wall portion 6, an outer circumferential guide portion 7 protruding upward from a radially outer portion of the bottom wall portion 6, and an inner circumferential guide portion 8 protruding upward from a radially inner portion of the bottom wall portion 6. That is, the bottom wall portion 6, the outer circumferential guide portion 7, and the inner circumferential guide portion 8 define an annular storage space X that is open upward. The outer circumferential guide portion 7 serves to regulate the storage position of the cable C stored in the storage space X so that the cable C does not head toward the outside of the cable container 2. The inner circumferential guide portion 8 serves as a core around which the cable C is wound.

[0015] The outer circumferential guide portion 7 and the inner circumferential guide portion 8 may be formed, for example, by combining a plurality of pipes. The outer circumferential guide portion 7 has a plurality of columnar members 10 extending upward from the radial outer edge of the bottom wall portion 6 and arranged at intervals in the circumferential direction, and an annular ring member 11 connecting the upper ends of the plurality of columnar members 10. The inner circumferential guide portion 8 has a plurality of columnar members 12 extending upward from the radial inner portion of the bottom wall portion 6 and arranged at intervals in the circumferential direction, and an annular ring member 13 connecting the upper ends of the plurality of columnar members 12.

[0016] The cable container 2 is placed on a stand 5 placed on the ground of the storage location 100. The stand 5 is disposed between the bottom wall portion 6 of the cable container 2 and the ground, and supports the radially outer portion of the cable container 2 from below. The stand 5 is, for example, an assembly of a plurality of rectangular parallelepiped blocks. The radially inner portion of the cable container 2 is not supported by the stand 5 and is open downward. That is, the stand 5 does not exist directly below the radially inner portion of the cable container 2, and a turntable arrangement space Y is formed. The turntable arrangement space S2 is open radially outward in a part of the circumferential direction around the rotation axis of the cable container 2. That is, the stand 5 extends in the circumferential direction, and a part of the stand 5 in the circumferential direction has an opening 9 that opens the turntable arrangement space Y radially outward. The stand 5 has, for example, a substantially C-shape in a plan view. The opening 9 of the stand 5 has a size that allows the turntable 3 to pass through. The horizontal dimension of the opening 9 of the base 5 is larger than the horizontal dimension of the turntable 3 .

[0017] The stand 5 has a jack arrangement space 5a. The jack arrangement space 5a is an inverted concave recess formed by cutting the lower end of the stand 5 upward. The jack arrangement space 5a is open in the horizontal direction. The jack arrangement space 5a is a space in which a jack 18 (see FIG. 4(e)) for lifting the cable container 2 can be placed.

[0018] FIG. 3 is a perspective view of the turntable 3 used to rotate the cable container 2 in FIG. 2. As shown in FIG. 3, the turntable 3 has a rotating table portion 14, a base portion 15 arranged below the rotating table 14, and a connection portion 16 arranged between the rotating table portion 14 and the base portion 15 and rotatably connecting the rotating table 14 to the base portion 15. The rotating table portion 14 has a disk shape. The connection portion 16 has an upper connection portion 16a and a lower connection portion 16b that are rotatable relative to each other around a vertical axis. The turntable 3 has a drive portion 17 that drives the upper connection portion 16a so as to rotate the upper connection portion 16a relative to the lower connection portion 16b. The drive portion 17 includes, for example, an electric motor. The drive portion 17 rotates the upper connection portion 16a, thereby rotating the rotating table portion 14.

[0019] Next, a storage process will be described in which the cable C loaded on the cable-laying barge 1 is received and stored in the cable container 2 arranged in the storage site 100.

[0020] As shown in FIG. 1, when the laying barge 1 loaded with the cable C arrives at a port having a storage site 100, the cable C accommodated in the cable accommodation section 21 of the laying barge 1 is paid out toward the cable container 2 arranged in the storage site 100, and the cable container 2 arranged in the storage site 100 rotates to wind up the cable C and accommodate the cable C in the accommodation space X of the cable container 2. The cable container 2 accommodating the cable C is stored in the storage site 100. The laying barge 1 transports different cables C multiple times, and different cable containers 2 in the storage site 100 receive the cable C loaded on the laying barge 1, and this process is repeated multiple times. As a result, multiple cable containers 2 each accommodating multiple different cables C are stored in the storage site 100. The laying barge 1 transporting the cable C to the storage site 100 multiple times may be different laying barges each time, or may be the same laying barge.

[0021] 4(a) to 4(g) are explanatory diagrams for explaining the operation of the cable container 2 and the turntable 3 in FIG. 1. As shown in FIG. 4(a), before the cable C is wound, the cable container 2 is arranged in the storage location 100 with the accommodation space X empty. Next, as shown in FIG. 4(b), the stand 5 is placed on the jack 18, so that the cable container 2 is indirectly placed on the jack 18, and the cable container 2 is lifted upward by the jack 18. Specifically, a plurality of jacks 18 are arranged in the jack arrangement space 5a (see FIG. 2) of the stand 5, and the jack 18 is extended to lift the stand 5 upward by the jack 18, so that the cable container 2 is lifted upward. As a result, a gap is generated between the stand 5 and the ground.

[0022] Next, as shown in FIG. 4(c), the dolly 19 is inserted into the gap between the frame 5 and the ground. The dolly 19 has a main body 19a and a plurality of wheels 19b that support the main body 19a from below. Next, as shown in FIG. 4(d) and FIG. 5, with the cable container 2 and the frame 5 placed on the dolly 19, the dolly 19 is run on the ground, and the turntable 3, which is stationary on the ground, is advanced into the turntable arrangement space Y below the cable container 2. At this time, the turntable 3 advances into the turntable arrangement space Y below the cable container 2 through the opening 9 of the frame 5. As a result, the cable container 2 is positioned above the turntable 3 with a gap therebetween. At this time, the dimension of the gap between the cable container 2 and the turntable 3 in the vertical direction is smaller than the extendable stroke of the jack 18 in the vertical direction.

[0023] Next, as shown in Fig. 4(e), a jack 18 is placed between the cradle 5 and the ground, and with the cradle 5 supported by the jack 18, the dolly 19 is removed from the cradle 5, thereby lowering the cradle 5 and the cable container 2 from the dolly 19. Next, as shown in Fig. 4(f), when the jack 18 is retracted to lower the cradle 5 to the ground and the jack 18 is removed, the bottom surface of the cable container 2 comes into contact with the rotating table portion 14 of the turntable 3 as the cradle 5 moves down away from the bottom surface of the cable container 2, and the cable container 2 is supported by the rotating table portion 14, so that the cable container 2 is floating above the cradle 5.

[0024] 4(g) and 6, with the tip of the cable C paid out from the laying barge 1 wound around the inner circumferential guide portion 8 (see FIG. 2) of the cable container 2, the turntable portion 14 of the turntable 3 is rotated to rotate the cable container 2 about the vertical axis, whereby the cable C paid out from the laying barge 1 is wound up into the cable container 2. As a result, the cable C from the laying barge 1 is accommodated in the accommodation space X of the cable container 2.

[0025] When winding of the cable C by the cable container 2 is completed, the turntable 3 is removed from the cable container 2. When removing the turntable 3 from the cable container 2, the steps of Fig. 4(a) to (f) are performed in reverse order. Once the turntable 3 is removed from the cable container 2, the cable container 2 containing the cable C is placed at a predetermined position in the storage area 100 and stored there.

[0026] By repeating a set of steps, from winding up the cable C loaded on the laying barge 1 by the cable container 2 to placing the cable container 2 in a storage position in the storage area 100, M times, different cables C are stored in the M cable containers 2, and the M cable containers 2 are stored side-by-side in the storage area 100 (M is a natural number of 2 or more). That is, the M cable containers 2 are lined up horizontally while being supported by different racks 5. At this time, the cable container 2 used in the Nth set out of the sets repeated M times is referred to as the Nth cable container (N is a natural number). The cable C stored in the Nth cable container is referred to as the Nth cable.

[0027] Next, a shipping process will be described in which a specific cable C (specific cable Ca) for which a shipping request has occurred among the multiple cables C stored in the storage site 100 is loaded onto the construction barge 1 and shipped.

[0028] First, a specific cable Ca for which a shipping request has occurred is selected from among the M cables C from the first cable to the Mth cable stored in the storage location 100. In addition, in conjunction with the selection of the specific cable Ca, a cable container 2 (specific cable container 2a) containing the specific cable Ca is selected from the M cable containers 2 from the first cable container 2 to the Mth cable container 2. The specific cable container 2a containing the selected specific cable Ca is placed on the turntable 3. This procedure is similar to the procedure shown in Figs. 4(a) to (f), and therefore a detailed description thereof will be omitted.

[0029] As shown in Fig. 7, with the specific cable container 2a placed on the turntable 3, the rotary table 14 of the turntable 3 is rotated to rotate the specific cable container 2a, thereby unwinding the specific cable Ca from the specific cable container 2a toward the cable housing section 21 of the laying barge 1. The specific cable Ca unwound from the specific cable container 2a is wound into the cable housing section 21 of the laying barge 1 and loaded onto the laying barge 1. The rotation direction of the turntable 3 during shipment is opposite to the rotation direction of the turntable 3 during storage.

[0030] FIG. 8 is a flow chart for explaining the flow of the cable storage method. As shown in FIG. 8, N is initially set to 1 (step S1). As described above, the first cable container 2 is placed on the turntable 3 (step S2). With the first cable container 2 placed on the turntable 3, the turntable 3 is rotated (step S3). This rotates the first cable container 2, and the cable C from the installation barge 1 is wound onto the first cable container 2. Next, it is determined whether or not the winding of the first cable C loaded onto the installation barge 1 has been completed (step S4). If the winding of the first cable C onto the first cable container 2 has not been completed, the winding of the first cable C onto the first cable container 2 continues. When the winding of the first cable C onto the first cable container 2 has been completed, the turntable 3 is removed from the first cable container 2 (step S5). The first cable container 2 containing the first cable C is stored in the storage location 100 (step S6).

[0031] If winding of the first to Mth cables C has not been completed, N is incremented (step S8), and steps S2 to S6 are performed. If winding of the first to Mth cables C has been completed, the process ends. When M cable containers 2 are stored in the storage location 100, the M cable containers 2 are stored, for example, sorted according to the destination (cable laying site) to which the cables C are shipped.

[0032] Fig. 9 is a flow chart explaining the flow of the cable shipping method. As shown in Fig. 9, when a shipping request occurs for any of the cables C stored in the storage location 100 (step S11: Y), a specific cable container 2a containing the specific cable Ca for which a shipping request has occurred is placed on the turntable 3 (step S12). Next, the turntable 3 is rotated to pay out the specific cable Ca from the specific cable container 2a toward the laying barge 1 (step S13). When the payout of the specific cable Ca from the specific cable container 2a is completed (step S14: Y), the process ends.

[0033] According to the method described above, the first to Mth cables C stored in the storage location 100 are not stacked in the same cable container 2, but the first to Mth cables C are each housed in a different cable container 2. Therefore, even if a shipping request occurs for any of the first to Mth cables C being stored, the shipping request can be quickly met by attaching the turntable 3 to the specific cable container 2a housing the specific cable Ca for which a shipping request has occurred.

[0034] In addition, after the turntable 3 is rotated and the cable container 2 winds up the cable C, the turntable 3 is removed from the cable container 2, and the cable container 2 is stored together with the cable C in the storage location 100, so that one turntable 3 can be shared by multiple cable containers 2. Therefore, the number of turntables 3 required can be reduced, and the cost of storing the cable C can be reduced.

[0035] In addition, when the cable container 2 is placed on the turntable 3, the cable container 2 is moved by the dolly 19, so there is no need to lift and transport the heavy cable container 2 containing the cable C by a crane. In this embodiment, the cable C is assumed to be a submarine cable, so the cable C is long and heavy. Therefore, the crane is required to be able to exert a fairly large power. In order to arrange a crane that can exert a large power, the waiting time may be long and the cost may increase. In addition, when the cable container 2 is moved by a large crane, a large space is required around the storage location 100, and it is possible that the storage location 100 cannot be effectively used. In addition, the energy consumption of the crane is large, so there is a possibility that the cost will increase. In contrast, if the cable container 2 is moved by the dolly 19, there is no need to arrange a crane for heavy weights in a timely manner, and the cost of storing and shipping the cable C can be reduced.

[0036] In addition, when placing the trolley 19 between the stand 5 supporting the cable container 2 and the ground, the stand 5 is lifted by the jack 18 and then the trolley 19 is placed in the gap between the stand 5 and the ground, so that the trolley 19 can be easily placed in the gap between the stand 5 and the ground.

[0037] Furthermore, when placing the cable container 2 on the turntable 3, the cable container 2 is placed on the dolly 19, and the dolly 19 is moved on the ground together with the cable container 2 to place the cable container 2 above the turntable 3, so that the cable container 2 can be easily moved by the rolling of the wheels 19b of the dolly 19. Therefore, the energy consumption required for moving the cable container 2 can be reduced.

[0038] Furthermore, since the cable container 2 is moved to place the cable container 2 on the turntable 3, there is no need to move the turntable 3. The turntable 3 is provided with electric wiring and hydraulic piping for driving it, but since there is no need to move the turntable 3, it is possible to prevent the wiring, piping, etc. associated with the turntable 3 from interfering with surrounding structures.

[0039] In addition, when loading the cable container 2 onto the trolley 19, the stand 5 is lifted with the jack 18 to lift the cable container 2 upward, and then the trolley 19 is placed below the stand 5, so that the cable container 2 can be easily loaded onto the trolley 19.

[0040] Furthermore, when removing the turntable 3 from the cable container 2, the dolly 19 is placed under the cable container 2, and then the dolly 19 is moved on the ground together with the cable container 2 to remove the turntable 3 from the cable container 2, so that the turntable 3 can be easily removed from the cable container 2. Therefore, energy consumption can be kept low.

[0041] In the above embodiment, a configuration in which only one turntable 3 is used has been described, but the present invention is not limited to the above embodiment. If the number of turntables 3 required is reduced by repeatedly using the turntable 3 for different cable containers 2, multiple turntables 3 may be used. Reducing the number of turntables 3 required can reduce the cost of storing or shipping multiple cable containers 2.

[0042] In addition, in the above embodiment, a configuration in which three cable containers 2 are arranged in the storage location 100 has been described, but the present invention is not limited to the above embodiment. The number of cable containers 2 stored in the storage location 100 may be any number.

[0043] Second embodiment 10(a) to 10(h) are explanatory diagrams illustrating the operation of a cable container 2 and a turntable 3 in a cable storage and shipping method according to the second embodiment. Note that parts common to the first embodiment are given the same reference numerals and descriptions thereof will be omitted. The second embodiment differs from the first embodiment in that, when placing the cable container 2 on the turntable 3, the turntable 3 is placed on a dolly 19, and the dolly 19 carrying the turntable 3 is caused to travel so that the turntable 3 enters the gap between the cable container 2 and the ground below.

[0044] As shown in FIG. 10(a), the turntable 3 is placed in a storage location 100. As shown in FIG. 10(b), a jack 18 is placed below the turntable 3. The jack 18 is jacked up to lift the turntable 3 upward and widen the gap between the turntable 3 and the ground. Next, as shown in FIG. 10(c), a dolly 19 is placed in the gap between the turntable 3 and the ground, and the turntable 3 is placed on the dolly 19. Next, as shown in FIG. 10(d), the jack 18 is removed from the gap between the turntable 3 and the ground, and the dolly 19 carrying the turntable 3 is made to travel.

[0045] As shown in Fig. 10(e), a jack 18 is placed between the ground and the stand 5 supporting the cable container 2, and the stand 5 is lifted by the jack 18 to widen the gap between the stand 5 and the ground. In this state, the turntable 3 placed on a dolly 19 is advanced into the turntable arrangement space Y below the cable container 2. Next, as shown in Fig. 10(f), another jack 18 is placed in the gap between the turntable 3 and the ground. With the gap between the turntable 3 and the ground widened by the jack 18, the dolly 19 is removed from the gap between the turntable 3 and the ground.

[0046] As shown in FIG. 10(g), the dolly 19 is removed from the gap between the turntable 3 and the ground, the jack 18 is removed from the gap between the turntable 3 and the ground, and then the jack 18 is removed from the gap between the stand 5 and the ground. As a result, the cable container 2 is supported by the rotating table portion 14 of the turntable 3. Next, as shown in FIG. 10(h), when the rotating table portion 14 of the turntable 3 is rotated with the tip of the cable C paid out from the construction barge 1 (see FIG. 1) wound around the inner guide portion 8 (see FIG. 2) of the cable container 2, the cable C paid out from the construction barge 1 is wound into the cable container 2.

[0047] According to this configuration, when the turntable 3 is arranged in the turntable arrangement space Y below the cable container 2, the turntable 3 is moved by the dolly 19, so there is no need to move the cable container 2. Since the turntable 3, which is smaller than the cable container 2, is moved, there is no need to move the cable container 2, which is larger than the turntable 3. Therefore, energy consumption can be reduced compared to the case of moving the cable container 2.

[0048] Even when the dolly 19 carrying the cable container 2 is moved to place the turntable 3 below the cable container 2, the turntable 3 may be placed on another dolly 19 and moved when removing the turntable 3 from the cable container 2. Even when the dolly 19 carrying the turntable 3 is moved to place the turntable 3 below the cable container 2, the cable container 2 may be placed on another dolly 19 and moved when removing the turntable 3 from the cable container 2.

[0049] As described above, the above embodiment has been described as an example of the technology disclosed in this application. However, the technology in this disclosure is not limited to this, and can be applied to embodiments in which modifications, replacements, additions, omissions, etc. have been made as appropriate. In addition, it is also possible to combine the components described in the above embodiment to create a new embodiment. For example, a part of the configuration or method in one embodiment may be applied to another embodiment, and a part of the configuration in an embodiment can be separated from other configurations in that embodiment and arbitrarily extracted. In addition, the components described in the attached drawings and detailed description include not only components essential for solving the problem, but also components that are not essential for solving the problem in order to exemplify the technology.

[0050] Each of the following sections is a disclosure of a preferred embodiment.

[0051] [Item 1] a storage step of storing the plurality of cables; A shipping step of shipping the stored cable, The storage step includes: A first step of placing an Nth cable container (N is a natural number) on a turntable; a second step of rotating the turntable to wind an Nth cable around the Nth cable container; a third step of displacing the turntable relative to the N cable container in which the N cable has been wound, thereby removing the turntable from the N cable container; and a fourth step of storing the Nth cable container from which the turntable has been removed together with the Nth cable, N=1 to M (M is a natural number of 2 or more), and the set of the first step to the fourth step is repeated from the first to the Mth times; The shipping step includes: a fifth step of selecting a specific cable container in which a specific cable for which a shipping request has been generated is wound among the M cables from the first cable container to the M cable container stored, and placing the specific cable container on the turntable; and a sixth step of rotating the turntable to pay out the specific cable from the specific cable container and load it onto a cable laying barge.

[0052] [Item 2] 2. The cable storage and shipping method according to claim 1, wherein when placing the Nth cable container on the turntable, the Nth cable container is placed on the turntable by moving the cable container above the turntable.

[0053] [Item 3] 3. The cable storage and shipping method according to item 2, wherein, when placing the Nth cable container on the turntable, the Nth cable container is placed on a dolly, the dolly together with the Nth cable container is moved on the ground to bring the Nth cable container above the turntable, and the Nth cable container is removed from the dolly.

[0054] [Item 4] 4. The cable storage and shipping method according to item 3, wherein when loading the Nth cable container onto the trolley, the Nth cable container is placed on a jack, the Nth cable container is lifted upward by the jack, the trolley is then moved to below the Nth cable container, and the Nth cable container is lowered from the jack.

[0055] [Item 5] 5. The cable storage and shipping method according to any one of items 1 to 4, wherein, when removing the turntable from the Nth cable container, a dolly is placed under the Nth cable container, and then the dolly is moved on the ground together with the Nth cable container to remove the turntable from the Nth cable container.

[0056] [Item 6] 2. The cable storage and shipping method according to claim 1, wherein when placing the Nth cable container on the turntable, the turntable is inserted into the gap below the Nth cable container, which is installed with a gap between it and the ground, thereby placing the Nth cable container on the turntable.

[0057] [Item 7] 7. The cable storage and shipping method according to item 6, wherein, when placing the Nth cable container on the turntable, the turntable is placed on a dolly, and the dolly is moved on the ground together with the turntable to allow the turntable and the dolly to enter the gap below the Nth cable container, and the turntable is lowered from the dolly.

[0058] [Item 8] 8. The cable storage and shipping method according to item 7, wherein when the turntable is placed on the cart, the turntable is placed on a jack, the turntable is lifted upward by the jack, the cart is moved to below the turntable, and the turntable is lowered from the jack.

[0059] [Item 9] The cable storage and shipping method according to any one of items 6 to 8, wherein, when the turntable is caused to enter the gap below the N cable container, the N cable container is placed on a jack, the N cable container is lifted upward by the jack, the turntable is caused to enter the gap below the N cable container, and the N cable container is lowered from the jack.

[0060] [Item 10] 10. The cable storage and shipping method according to any one of items 1 to 9, wherein, when removing the turntable from the Nth cable container, a dolly is placed under the turntable, and then the dolly is moved on the ground together with the turntable to remove the turntable from the Nth cable container. [Explanation of symbols]

[0061] 1. Laying Barge 2 Cable Container 2a Specific Cable Container 3. Turntable 18 Jack 19 Trolley C Cable Ca specific cable 100 Storage Locations

Claims

1. a storage step of storing the plurality of cables; A shipping step of shipping the stored cable, The storage step includes: A first step of placing an Nth cable container (N being a natural number) on a turntable; a second step of rotating the turntable to wind an Nth cable around the Nth cable container; a third step of displacing the turntable relative to the Nth cable container in which the Nth cable has been wound, to remove the turntable from the Nth cable container; and a fourth step of storing the Nth cable container from which the turntable has been removed together with the Nth cable, N=1 to M (M is a natural number equal to or greater than 2), and the set of the first step to the fourth step is repeated from the first to the Mth times; The shipping step includes: a fifth step of selecting a specific cable container in which a specific cable for which a shipping request has occurred is wound among the M cables from the first cable container to the M cable container stored, and placing the specific cable container on the turntable; and a sixth step of rotating the turntable to pay out the specific cable from the specific cable container and load it onto a cable laying barge.

2. 2. The cable storage and shipping method according to claim 1, wherein when placing the Nth cable container on the turntable, the Nth cable container is placed on the turntable by moving the cable container above the turntable.

3. 3. The cable storage and shipping method according to claim 2, wherein, when placing the Nth cable container on the turntable, the Nth cable container is placed on a dolly, the dolly is moved on the ground together with the Nth cable container to move the Nth cable container above the turntable, and the Nth cable container is removed from the dolly.

4. 4. The cable storage and shipping method according to claim 3, wherein when loading the Nth cable container onto the trolley, the Nth cable container is placed on a jack, the Nth cable container is lifted upward by the jack, the trolley is then moved to below the Nth cable container, and the Nth cable container is lowered from the jack.

5. 2. The cable storage and shipping method according to claim 1, wherein, when removing the turntable from the Nth cable container, a dolly is placed under the Nth cable container, and then the dolly is moved on the ground together with the Nth cable container to remove the turntable from the Nth cable container.

6. 2. The cable storage and shipping method according to claim 1, wherein when placing the Nth cable container on the turntable, the Nth cable container is placed on the turntable by entering the turntable into the gap below the Nth cable container, which is installed with a gap between the turntable and the ground.

7. 7. The cable storage and shipping method according to claim 6, wherein, when placing the Nth cable container on the turntable, the turntable is placed on a dolly, and the dolly is moved on the ground together with the turntable to allow the turntable and the dolly to enter the gap below the Nth cable container, and the turntable is lowered from the dolly.

8. 8. The cable storage and shipping method according to claim 7, wherein when the turntable is placed on the cart, the turntable is placed on a jack, the turntable is lifted upward by the jack, the cart is moved to below the turntable, and the turntable is removed from the jack.

9. A cable storage and shipping method as described in any one of claims 6 to 8, wherein when the turntable is inserted into the gap below the Nth cable container, the Nth cable container is placed on a jack, the Nth cable container is lifted upward by the jack, the turntable is inserted into the gap below the Nth cable container, and the Nth cable container is lowered from the jack.

10. 2. The cable storage and shipping method according to claim 1, wherein, when removing the turntable from the Nth cable container, a dolly is placed under the turntable, and then the dolly is moved on the ground together with the turntable to remove the turntable from the Nth cable container.

Images