JP5351929B2 - Hanger rail device assembly support, hanger rail device assembly method, and hanger rail device replacement method - Google Patents

Description

  The present invention relates to a hanger rail device assembly support for assembling a hanger rail device applied to a floating oil breakwater facility, a method for assembling a hanger rail device, and replacing an existing hanger rail device with a replacement hanger rail device. The present invention relates to a method for replacing a hanger rail device.

  One oil storage facility at an oil storage base uses a storage ship floating on the sea (offshore tank system). The oil storage base 50 and the storage ship 51 have the external appearance as shown in FIG. 1, for example. The size of one of the storage ships 51 is, for example, length 390 m × width 97 m × depth 27.6 m. 880,000 kiloliters of oil can be stored.

  Around the storage vessel 51, double floating oil breakwater facilities are provided. The floating levee facility includes a primary floating levee facility 52 provided on the storage ship 51 side, and a secondary buoyed oil levee facility 53 provided outside the primary buoy oil bank facility 52. Each of the primary levee oil embankment facility 52 and the secondary levee oil embankment facility 53 has a plurality of levee oil levee 4 and a hanger rail device 1 installed at an opening between the two buoyant oil levee 4. The primary floating breakwater facility 52 further includes a marine anchor 43 for mooring the floating breakwater 4.

Japanese Unexamined Patent Publication No. 8-150988

  As shown in FIG. 2, the hanger rail device 1 includes an oil fence film material 10 made of rubber, fiber cloth, glass cloth, or the like. From the viewpoint of durability of the oil fence film material 10, the oil fence film material 10 is replaced with a new one at a pace of, for example, every 10 years.

  The length of the oil fence membrane material 10 is about 5 m in the primary floating bank structure 52 and about 2 m in the secondary floating bank structure 53, and the replacement work becomes large in scale. Further, the glass cloth provided in the vicinity of the center in the thickness direction of the oil fence film material 10 is easily buckled and easily broken. Furthermore, since the removal / attachment work and repair work of the hanger rail device 1 are performed at sea, it is easily affected by waves, and it is required to ensure safety during work.

  The present invention has been made in view of such circumstances, and there is provided a hanger rail device assembly support tool and a hanger rail device capable of safely and quickly exchanging membrane materials without reducing quality. It is an object to provide an assembling method and a hanger rail device replacement method.

In order to solve the above problems, the hanger rail device assembly support, the hanger rail device assembly method, and the hanger rail device replacement method of the present invention employ the following means.
That is, the support for assembling the hanger rail device according to the present invention is connected along the longitudinal direction end portion of the long first film material having a circular cross section in the direction perpendicular to the longitudinal direction. The first support material is supported so that the first support material is substantially horizontal. When the first film material is connected to the first support material, the first support material is convex downward. A first frame for supporting the first film material in a suspended manner through the material, and a long section having a circular arc shape in a direction perpendicular to the longitudinal direction, the width direction along the longitudinal direction of the first support material And a second pedestal that supports the second film material connected at the end so that the second film material is upwardly convex and substantially horizontal.

  The present invention includes a first film material and a second film material each having an arcuate cross section perpendicular to the longitudinal direction, and a first support material connected to the first film material and the second film material. A hanger rail device assembling support used when assembling the hanger rail device, and according to the present invention, the first frame supports the first support material substantially horizontally, and the second frame is the second film material. Is supported almost horizontally. And when connecting a 1st film | membrane material to the 1st support material supported by the 1st mount, a 1st film | membrane material is connected to a 1st support material so that it may become downward convex and suspended. Further, the second film material is connected to the first support material so as to be upwardly convex while being supported substantially horizontally.

  Therefore, since the first film material and the second film material are attached to the first support material while being substantially horizontal, they are deformed without applying a shearing force as compared to the case where the first film material and the second film material are attached vertically to the first support material. Not receive. As a result, the hanger rail device can be assembled safely and quickly without reducing the quality.

  Here, the hanger rail device is, for example, a facility that is provided at an opening between the floating oil levee of a floating oil levee facility to prevent oil leakage, and the film material includes, for example, rubber, fiber cloth, and glass cloth. Etc.

  The hanger rail device assembling method according to the present invention includes a step of supporting a first support member substantially horizontally on a first frame, and a long first section having an arc-shaped cross section perpendicular to the longitudinal direction. The step of connecting the width direction end of the film material to the first support material along the longitudinal direction, and the first film material suspended in the air via the first support material so that the first film material is convex downward A step of supporting, a step of supporting the second film material having a long circular shape whose cross section in a direction perpendicular to the longitudinal direction is substantially horizontally supported by the second frame, and the second film material being upwardly convex. And a step of supporting the second film material via the second gantry and a step of connecting the width direction end of the second film material to the first support material along the longitudinal direction.

  Moreover, the replacement method of the existing hanger rail apparatus which concerns on this invention is the primary in the oil storage base which has the secondary buoy oil bank equipment installed in the outer side of the primary buoy oil bank equipment and the primary buoy oil bank equipment. An existing hanger rail device replacement method for replacing an existing hanger rail device of a floating breakwater facility with a replacement hanger rail device assembled by the assembly method of the hanger rail device described above. Using a crane ship moored outside the facility, a work ship having a suspension platform is carried into the anchorage between the primary floating oil breakage facility and the secondary suspension oil facility, and a work boat having a suspension platform is used. Removing the existing hanger rail device from the primary floating oil breakage facility, carrying the existing hanger rail device to the crane ship anchored outside the secondary floating oil breakage facility, and the outside of the secondary floating oil breakwater facility The step of loading the replacement hanger rail device onto a work ship having a suspension platform by the anchored crane ship, and the replacement hanger rail device being transported to the primary floating oil breakwater facility using the work ship having a suspension frame. And installing.

  According to the present invention, the suspension and removal work of the existing hanger rail device between the primary levee oil embankment facility and the secondary levee oil embankment facility, and the transportation and installation work of the replacement hanger rail device are carried out by Done by a working ship. Work vessels with suspension platforms can be transported while immersing the existing hanger rail device in the water, for example, to a crane ship anchored outside the secondary buoyant oil breakage facility. Any scale that can transport the hanger rail device for replacement to the equipment while being immersed in water may be used. For this reason, it is not necessary to throw a large crane ship between the primary and secondary breakwater facilities. Therefore, ancillary work for partially opening the secondary levee oil embankment facility becomes unnecessary. In addition, since it is not necessary to open the secondary levee oil embankment facility, it is possible to ensure compliance with the provisions of the Fire Service Act. Further, it is not necessary to restore the secondary floating breakwater facility 53 in an emergency such as a typhoon.

  According to the present invention, the membrane material can be exchanged safely and quickly without reducing the quality.

It is a perspective view which shows the oil storage base using a storage ship. It is a perspective view which shows a hanger rail apparatus. It is an expanded sectional view which shows the connection part of an oil fence membrane material and the edge part box of a breakwater oil bank. It is an expanded sectional view which shows the connection part between two oil fence membrane materials. It is the schematic which shows a work ship provided with temporary davit. It is a perspective view which shows the hanger rail apparatus assembly support tool which concerns on one Embodiment of this invention. It is a front view which shows the support tool for a hanger rail apparatus assembly which concerns on the embodiment. It is a side view which shows the hanger rail apparatus assembly support tool based on the embodiment. It is a perspective view which shows the hanger rail apparatus assembly support tool and hanger rail apparatus which concern on the embodiment. It is a flowchart which shows the replacement | exchange operation | work of the hanger rail apparatus in the primary levee oil embankment equipment concerning the embodiment. It is a flowchart which shows the replacement | exchange operation | work of the hanger rail apparatus which concerns on the embodiment. It is a flowchart which shows the conveyance operation | work of the hanger rail apparatus which concerns on the embodiment. It is a flowchart which shows the assembly operation | work of the hanger rail apparatus which concerns on the embodiment. It is an end view which shows an oil fence film | membrane material and a shape maintenance jig | tool. It is an end view which shows an oil fence film | membrane material and a support tool. It is a perspective view which shows the breakwater oil bank installation of the state which lifted the hanger rail apparatus. It is a perspective view which shows a hanger rail apparatus and the conventional frame. It is a flowchart which shows the replacement | exchange operation | work of the hanger rail apparatus in the conventional primary floating breakwater installation.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
The hanger rail apparatus 1 is installed in the primary floating oil bank facility 52 and the secondary floating oil bank facility 53 provided around the storage ship 51 of the oil storage base 50 shown in FIG. The storage ship 51 is a ship capable of storing oil, and is used as an oil storage facility in the oil storage base 50. The storage vessel 51 has an appearance as shown in FIG. 1, and the size of one vessel is, for example, 390 m long × 97 m wide × 27.6 m deep, and can store 880,000 kiloliters of oil.

  Around the storage vessel 51, double floating oil breakwater facilities are provided. The floating levee facility includes a primary floating levee facility 52 provided on the storage ship 51 side, and a secondary buoyed oil levee facility 53 provided outside the primary buoy oil bank facility 52. The primary floating breakwater facility 52 includes a hanger rail device 1, an oil fence device 3, a floating oil breakwater 4, a marine anchor 43, and the like. The secondary floating breakwater facility 53 includes the hanger rail device 1, the floating breakwater 4 and the like. The hanger rail device 1, the oil fence device 2, and the floating breakwater 4 are floating on the sea, the lower part is located below the sea level, and the upper part is located above the sea level. The sea anchor 43 floats on the sea, and the lower end is fixed to the sea bottom.

  The hanger rail device 1 and the oil fence device 3 are installed at the opening between the two floating breakwaters 4. For example, the floating oil bank 4 is a hollow steel member having a substantially circular cross section, and has a linearly long shape.

  End boxes 5 made of steel and having a hollow, substantially rectangular parallelepiped shape are provided at both ends of the breakwater oil bank 4. The end box 5 is loaded with ballast, and the floating oil bank 4 is stabilized. The end box 5 is connected to the oil fence membrane material 10 via the mounting hardware 12 on the side surface. One of the hanger rail support roller 8 and the hanger rail support hardware 9 and the mounting post 7 are installed on the upper surface of the airborne portion of the end box 5. A mounting post (not shown) is installed on the lower surface of the underwater portion of the end box 5.

  A hanger rail 15 is hung between the hanger rail support roller 8 and the hanger rail support hardware 9 between the two opposing floating levee dikes 4, and the hanger rail 15 is interposed via the traveling member 13 and the suspension chain 14. The oil fence membrane material 10 is supported. A rubber chainer 6 is laid between the mounting posts 7 in the middle of the air between the two floating oil banks 4 facing each other. In addition, a rubber chainer (not shown) is also placed between the mounting posts in the underwater part. The rubber chainer 6 in the aerial part and the rubber chainer in the underwater part prevent the distance between the floating oil levee 4 from exceeding a certain value.

  As shown in FIG. 16, a mooring chain 40 and a sinker chain 41 are connected to the end box 5. The mooring chain 40 connects the end boxes 5 at both ends of the floating breakwater 4 and the marine anchors 43. The sinker chain 41 connects the end box 5 and the sinker 44 (see FIG. 1) submerged in the seabed.

Next, the hanger rail device 1 will be described.
The hanger rail device 1 includes an oil fence membrane material 10, an intermediate support metal pipe 11, an attachment metal 12, a traveling member 13, a suspension chain 14, a hanger rail 15, and the like. The oil fence membrane material 10 of the hanger rail device 1 has elasticity, and the hanger rail support roller 8 is slidable in the axial direction along the hanger rail 15. Therefore, the hanger rail device 1 can maintain the oil-proof function even if the floating oil bank 4 moves within a certain range.

  The hanger rail device 1 is detachably installed from the end box 5 with a hanger rail support roller 8, a hanger rail support metal 9, and an attachment metal 12. Therefore, the hanger rail device 1 can be replaced in accordance with the aging of the oil fence membrane material 10 or the like.

  The oil fence film material 10 is a film-like long member in which rubber, fiber cloth, glass cloth, and the like are laminated, and a cross section perpendicular to the longitudinal direction has an arc shape. The length of the oil fence membrane material 10 is about 5 m in the primary floating bank structure 52 and about 2 m in the secondary floating bank structure 53. The oil fence membrane material 10 is connected to the intermediate supporting hardware pipe 11 or the mounting hardware 12 along the longitudinal direction at the end in the width direction. The oil fence membrane material 10 is continuously connected via the intermediate support metal pipe 11 so that the convex directions are alternated.

  The intermediate support metal pipe 11 is a tubular member that is long in a straight line, and is installed between the two oil fence film members 10 and connected to the oil fence film material 10. The intermediate support metal pipe 11 is connected to the end of the suspension chain 14 at one end.

  The mounting hardware 12 is a linearly long member, is installed between the oil fence membrane material 10 and the end block 5, and is connected to the oil fence membrane material 10 and the end block 5.

  The traveling member 13 is installed on the hanger rail 15, and the suspension chain 14 is connected at the lower end. The traveling member 13 has a roller (not shown) inside, and is movable along the axial direction of the hanger rail 15.

  The suspension chain 14 is connected to the intermediate support metal pipe 11 at one end side and is connected to the traveling member 13 at the other end side.

  The hanger rail 15 is a linearly long rod-like member, and is supported movably by a hanger rail support roller 8 on one end side and supported by a hanger rail support hardware 9 on the other end side.

  Next, with reference to FIG. 3, the connection part of the oil fence film | membrane material 10 and the edge part box 5 of the floating oil bank 4 is demonstrated.

  The end portion in the width direction of the oil fence film material 10 is provided with an anti-bending rubber 21 on both sides, and is sandwiched between the mounting hardware 12 and the pressing hardware 20. The oil fence 10, the anti-bending rubber 21, the mounting hardware 12, and the pressing hardware 20 are each provided with a through hole, and a spacer 16 is inserted into the through hole and fixed using a bolt 17. A mounting hardware 19 is provided on the side surface of the end box 5, and the mounting hardware 12 and the mounting hardware 19 are fixed using bolts 22.

  From the above, the oil fence membrane material 10 is connected to the end box 5. Further, the oil fence membrane material 10 can be removed from the end box 5 by loosening the bolts 22.

  Next, with reference to FIG. 4, the connection part between the two oil fence film | membrane materials 10 is demonstrated.

  One end of the oil fence film member 10 in the width direction is provided with anti-bending rubbers 21 on both sides, and is sandwiched between the mounting hardware 18 and the pressing hardware 20. The oil fence 10, the anti-bending rubber 21, the attachment metal 18 and the presser metal 20 are each provided with a through-hole, and a spacer 16 is inserted into the through-hole and fixed using a bolt 17. The attachment hardware 18 is a member fixed to the intermediate support hardware pipe 11. From the above, one oil fence membrane material 10 is connected to the intermediate support metal pipe 11.

  The other end portion in the width direction of the oil fence membrane material 10 is sandwiched between the mounting hardware 18 and the pressing hardware 20. The oil fence 10, the mounting hardware 18, and the presser hardware 20 are each provided with a through hole, and a spacer 16 is inserted into the through hole and fixed using a bolt 17. The attachment hardware 18 is a member fixed to the intermediate support hardware pipe 11. As described above, the other oil fence membrane material 10 is connected to the intermediate support metal pipe 11. As a result, the two oil fence membrane materials 10 are connected via the intermediate support metal pipe 11.

  Next, with reference to FIGS. 6-8, the support tool 2 for a hanger rail apparatus assembly is demonstrated.

  The support 2 for assembling the hanger rail device is installed, for example, on a temporary work place platform and used to assemble the hanger rail device 1 described above. According to the support 2 for assembling the hanger rail device, the oil fence membrane material 10 is attached to the intermediate support metal pipe 11 or the attachment metal 12 while being substantially horizontal, so that it is not deformed without applying a shearing force. As a result, the hanger rail device 1 can be assembled safely and quickly without reducing quality.

  The support 2 for assembling the hanger rail device includes, for example, a main column 27, a horizontal beam stand 28, a davit 29, a membrane material lifting balance 30, a chain block 31, and the like.

  Four main struts 27 are installed on the temporary work platform. At the upper end of the main column 27, a linear bar-like horizontal girder stand 28 is installed. The two main columns 27 support one horizontal girder frame 28 on both ends. The two horizontal beam stands 28 are installed in parallel to each other. The cross beam stand 28 can be connected to the intermediate support hardware pipe 11 and the mounting hardware 12 via the connection hardware 32 shown in FIGS. 7 and 8.

  Four davits 29 are installed on the temporary work place platform. The davit 29 is provided with a chain block 31. The chain block 31 supports the end portion of the membrane material suspension balance 30. The membrane material suspension balance 30 is a linearly long rod-shaped member, and is supported by two davits 29 via chain blocks 31 at both ends.

  Next, an assembly operation of the hanger rail device 1 using the hanger rail device assembly support 2 will be described with reference to FIG.

  First, the mounting hardware 12 that connects the end box 5 and the oil fence membrane material 10 is mounted on the horizontal beam stand 28. Further, the intermediate support metal pipe 11 is attached to the cross beam stand 28 (step S31). At this time, the intermediate support hardware pipe 11 and the mounting hardware 12 are supported substantially horizontally on the cross beam stand 28. “Substantially horizontal” means an angle at which the hanger rail device 1 can be assembled stably, and an extremely biased load at one end of the oil fence membrane material 10 connected to the intermediate supporting hardware pipe 11 or the mounting hardware 12. This is an angle at which the oil fence film material 10 is not easily damaged by shearing force.

  The oil fence film material 10 </ b> A is carried in while being horizontally supported by the shape holding jig 33, and is disposed on the lower side of the horizontal girder frame 28. In FIG. 14, the state of the oil fence film | membrane material 10 at the time of carrying in is shown. By connecting the ends in the width direction of the oil fence film material 10 with a wire or the like, the cross section can be maintained in a semicircular shape without breaking the oil fence film material 10.

  Next, the oil fence membrane material 10A is attached to the intermediate support metal pipe 11 and the attachment metal 12 (step S32). At this time, the oil fence membrane material 10A is attached to the intermediate support metal pipe 11 and the attachment metal 12 so as to be downwardly convex. After the attachment, the oil fence membrane material 10 </ b> A is supported in a suspended manner by the cross beam stand 28 via the support hardware pipe 11 and the attachment hardware 12.

  In addition, the oil fence membrane material 10 </ b> B is carried in while being supported horizontally, and is placed on the membrane material suspension balance 30. At this time, the membrane material suspension balance 30 is positioned on the lower side of the horizontal girder stand 28 so that the oil fence membrane material 10B can be easily placed. Then, the height of the membrane material suspension balance 30 is adjusted by the chain block 31, and the oil fence membrane material 10 </ b> B is moved to an upper part than the horizontal girder frame 28. Next, the oil fence membrane material 10B is attached to the intermediate support metal pipe 11 and the attachment metal 12 (step S33). At this time, the oil fence film material 10B is attached to the intermediate support metal pipe 11 and the attachment metal 12 so as to be convex upward.

  As described above, the film material portion of the hanger rail device 1 is formed in a wave shape by alternately arranging the oil fence film material 10A and the oil fence film material 10B. At this time, since the intermediate supporting hardware pipe 11 and the mounting hardware 12 are fixed by the cross beam base 28, no shear force is applied to the oil fence membrane materials 10A and 10B. Therefore, breakage of the oil fence membrane materials 10A and 10B during assembly can be prevented.

  Furthermore, the hanger rail 15 may be prepared, and the hanger rail 15 may be attached to the membrane material portion by connecting the suspension chain 14 to the hanger rail 15 and the intermediate support metal pipe 11 (step S34). Note that a construction pole may be prepared instead of the hanger rail 15, and the membrane material portion and the construction pole may be connected via a chain or the like.

  Thereafter, as shown in FIG. 9, the assembled film material portion is rotated by lifting the other cross beam stand 28 </ b> A by the crane 35 using the wire rope 34 with the one cross beam stand 28 </ b> B as a fulcrum. Cause. In this way, if the cross beam base 28B is made rotatable at the upper part of the main column 27, the film material portion can be caused so that no shearing force is applied to the film material portion.

  Although FIG. 9 shows an example in which the cross beam stand 28A is lifted, the film material portion may be caused by lifting the hanger rail 15 or the erection pole described in step S34.

  Next, the replacement work of the hanger rail device 1 using the work boat 25 having the davit 26 as shown in FIG. 5 will be described with reference to the flowcharts of FIGS.

  When replacing the hanger rail device 1 of the primary floating bank structure 52, first, the davit 26 is attached to the work boat 25. Then, as shown in FIG. 10, the work ship 25 in which the davit 26 is installed is carried into the anchorage by another crane ship (not shown) anchored outside the secondary floating breakwater 53. (Step S1). Here, the anchorage is an area between the primary levee oil embankment 52 and the secondary levee oil dam 53, and is an area where the work boat 25 moves during work.

  After that, the replacement work of the hanger rail device 1 having the oil fence membrane material 10 of the primary levee oil bank facility 52 described later is performed (step S2). At this time, using the work boat 25, the hanger rail device 1 of the primary floating bank structure 52 is removed or attached. Moreover, the work ship 25 should just be able to carry the hanger rail apparatus 1 while immersing it in the water to the crane ship waiting in the vicinity of the secondary floating breakwater facility 53, and the work ship 25 and the davit 26 are small in scale. Good.

  After completion of the replacement work, the work ship 25 working in the anchorage is carried out of the anchorage by another crane ship (not shown) anchored outside the secondary floating breakwater 53 (step S3). ).

  In the replacement work of the hanger rail device 1 in step S2, as shown in FIG. 11, the existing hanger rail device 1 is removed (step S11), and the existing hanger rail device 1 is disassembled (step S12). Specifically, as shown in FIG. 12, first, the existing hanger rail device 1 is removed from the end box 5 using the davit 26 on the work boat 25 (step S21). At the same time, a temporary suspension base (davit) is attached on the end box 5 (step S22). Then, the removed existing hanger rail device 1 is held by the chain block provided on the temporary suspension stand (step S23), and the existing hanger rail device 1 is loaded onto the work boat 25 (step S24).

  Thereafter, the existing hanger rail device 1 is transported by the work ship 25 to the secondary floating oil breakage facility 53 side (step S25), and the existing hanger rail is moved to the crane ship anchored outside the secondary floating oil breakage facility 53. The device 1 is transshipped (step S26). Then, the crane ship is crushed to the temporary work place base ship (step S27), and the hanger rail apparatus is mounted on the temporary work place base ship described above with reference to FIGS. 1 is installed. At this time, as shown in FIG. 9, the hanger rail device 1 may be installed in a horizontal state with one horizontal beam stand 28 </ b> B as a fulcrum.

  And the assembly work of the hanger rail apparatus 1 demonstrated using FIG. 13 is performed (step S13), and the attachment work of the hanger rail apparatus 1 for replacement | exchange in the primary levee oil embankment facility 52 is performed (step S14). The installation work of the replacement hanger rail device 1 is a procedure opposite to the flowchart of FIG. 12. First, the replacement hanger rail device 1 is moved from the temporary work place carrier to the secondary floating oil breakwater facility 53 by a crane ship. Carry. Then, the replacement hanger rail device 1 is reloaded onto the work boat 25, and the replacement hanger rail device 1 is transported by the work boat 25 to the vicinity of the primary levee oil embankment facility 52 while using a temporary suspension base. A replacement hanger rail device 1 is installed between the two floating breakwaters 4.

  Conventionally, when the hanger rail device 1 of the primary levee-oil embankment 52 is removed or attached, a crane ship is used instead of the work ship 25. Since the crane ship is larger than the work ship 25 and tow the crane ship to the primary floating oil breakage facility 52, as shown in the flowchart of FIG. ) Was necessary.

  In the incidental work, the crane 35 removes the hanger rail device 1 of the secondary floating bank structure 53 (see FIG. 16), the sinker chain 41 and the mooring chain 40, and the rubber chainer 6 are removed. Then, when the floating oil bank 4 of the secondary floating oil bank facility 53 becomes movable, the floating oil bank 4 is moved and moored, and the secondary floating oil bank facility 53 is opened. Thereafter, the crane ship is towed between the primary buoy oil bank facility 52 and the secondary buoy oil bank facility 53 from the place where the secondary buoy oil bank facility 53 is opened.

  And the replacement work of the hanger rail apparatus 1 of the primary levee-oil embankment equipment 52 is performed using a crane ship (step S42). The crane ship is towed out of the secondary buoy oil bank facility 53 while the hanger rail device 1 is lifted in the vicinity of the primary buoy oil bank facility 52 and the hung rail device 1 is maintained in the lifted state. And while a crane ship is towed, it conveys the hanger rail apparatus 1 to a temporary work place base ship, and installs the hanger rail apparatus 1 on the mount 42 on a temporary work place base ship as shown in FIG.

  After completion of the replacement work, ancillary work for returning the secondary floating bank structure 53 is performed by a procedure opposite to the work of step S41 (step S43).

  As described above, the replacement work of the conventional hanger rail device 1 involves ancillary work that takes several days. Therefore, the work is prolonged, and in the replacement work using the work ship 25, the work ship 25 can be carried in and out. Therefore, the working days can be greatly shortened. Moreover, since it is not necessary to open the secondary levee oil embankment facility 53, it is possible to reliably comply with the provisions of the Fire Service Act. Further, it is not necessary to restore the secondary floating breakwater facility 53 in an emergency such as a typhoon.

  Moreover, the replacement | exchange operation | work of the conventional oil fence film | membrane material 10 was performed using the mount frame 42 shown in FIG. Accordingly, since the hanger rail device 1 is maintained in the vertical state during the assembly operation, it is difficult to maintain the semicircular shape of the oil fence film material 10. Therefore, the glass cloth provided in the vicinity of the center of the oil fence film material 10 in the thickness direction is likely to buckle and is likely to break.

  On the other hand, according to the present embodiment, as described above, the oil fence film material 10 can be exchanged safely and quickly without reducing the quality of the hanger rail device 1.

  In the above description, the replacement work of the hanger rail device 1 to which a plurality of oil fence membrane materials 10 are connected has been described. However, the present invention also applies to the oil fence device 3 composed of one oil fence membrane material 10. Therefore, safe and quick replacement work can be performed.

  As shown in FIG. 1, the oil fence device 3 is provided in a primary levee oil break facility 52 along the length direction of the storage ship 51. At the time of assembling the oil fence apparatus 3, first, a support tool 39 shown in FIG. 15 is prepared. On the support tool 39, the shape holding jig 37 is installed horizontally, and the oil fence membrane material 10 is fixed by the shape holding jig 37 via the connection fitting 38 while being kept horizontal. Thereafter, the oil fence device 3 is transported by the work ship 25 to the primary levee oil break facility 52 while being fixed to the shape holding jig 37, and is replaced with the existing oil fence device 3.

  Thus, in the oil fence device 3 as well, as with the hanger rail device 1, the oil fence film material 10 can be replaced safely and quickly without reducing the quality.

DESCRIPTION OF SYMBOLS 1 Hanger rail apparatus 2 Hanger rail apparatus assembly support tool 3 Oil fence apparatus 4 Floating oil bank 5 End box 6 Rubber chainer 7 Mounting post 8 Hanger rail support roller 9 Hanger rail support metal 10, 10A, 10B Oil fence film material (First film material, second film material)
11 Intermediate support hardware pipe (first support material)
12 Mounting hardware 13 Traveling member 14 Suspension chain 15 Hanger rail 25 Work boat 26 Temporary davit 27 Main column 28 Horizontal girder frame (first frame)
29 Davit 30 Membrane suspension (second mount)
31 Chain block 32 Connection hardware 33, 37 Shape holding jig 39 Supporting tool 41 Mooring chain 41 Sinker chain 42 Mounting base 43 Marine anchor 44 Sinker 50 Oil stockpiling base 51 Storage ship 52 Primary floating oil breakwater facility 53 Secondary floating oil breakwater Facility

Claims (3)

A first support member connected along the longitudinal direction with a width direction end of a long first film material having a circular cross section perpendicular to the longitudinal direction, the first support member being substantially horizontal And when the first film material is connected to the first support material, the first film material is interposed via the first support material so that the first film material is downwardly convex. A first stand that supports the suspension;
A second film material having a cross section perpendicular to the longitudinal direction and having a circular arc shape and connected to the first support material at the end in the width direction along the longitudinal direction. A second frame that supports the material so that the material is upwardly convex and substantially horizontal;
A support for assembling a hanger rail device. Supporting the first support material substantially horizontally on the first frame;
Connecting the widthwise end of the long first film material having a circular cross section perpendicular to the longitudinal direction to the first support material along the longitudinal direction;
Supporting the first film material in a suspended manner via the first support material so that the first film material is convex downward;
A step of supporting the second film material having an elongated shape whose cross section perpendicular to the longitudinal direction has an arc shape on the second frame substantially horizontally;
Supporting the second film material via the second mount so that the second film material is convex upward;
Connecting the widthwise end of the second film material to the first support material along the longitudinal direction;
A method for assembling a hanger rail device comprising: An existing hanger rail device for the primary buoy oil bank facility in an oil storage base having a primary buoy oil bank facility and a secondary buoy oil bank facility installed outside the primary buoy oil bank facility, A replacement method for a hanger rail device that is replaced by a replacement hanger rail device assembled by the assembly method for a hanger rail device according to 2,
Carrying a work ship having a suspension base into the anchorage between the primary floating oil breakage facility and the secondary floating oil breakage facility by a crane ship anchored outside the secondary floating oil breakage facility; ,
Using a work ship having the suspension platform, the existing hanger rail device of the primary floating oil breakage facility is removed, and the existing hanger rail device is carried out to a crane ship anchored outside the secondary floating oil breakage facility. Steps,
Loading the replacement hanger rail device into a work ship having the suspension base by a crane ship anchored outside the secondary floating breakwater facility;
Using the work ship having the suspension platform, transporting and installing the replacement hanger rail device to the primary levee oil embankment facility; and
A hanger rail device replacement method comprising:

Images