JPH08277513A - Repair method of quay - Google Patents

Abstract

PURPOSE: To omit time and labor in the restoration of facilities. CONSTITUTION: The fluidized and settled part of a reclaimed soil 3 is further reclaimed and an earth retaining wall 6 is erected at the upper end of a caisson 4. A plurality of steel pipe piles 7 are driven to the bottom of the sea and a steel guide base 12 provided with guide rails 11 is lowered from the upper side of the steel pipe piles 7. The head of steel pipe piles is inserted in the holes of the steel guide base 12 and the upper end face of steel pipe piles is set to contact the positioning plate and temporarily fixed. The guide base 12 is horizontally transferred by driving jacks to position mutual end faces of the guide rails 11. A fitting plate is welded to the inside of the steel pipe piles and the guide base 12 and fixed thereto. The temporarily fitting member and the head of steel pipe piles are cut off to level the upper face height of the steel pipe piles and the height of the upper guide plate 14. The fluidized and settled part of a reclaimed soil is further reclaimed and an earth retaining wall is erected on an inclined caisson 4, and hence, the fluidized soil is not required to be compacted again and also since the guide base and the piles are made of steel, the curing period is not required.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a repair method for repairing quay facilities when, for example, a quay where a cargo ship berths collapses due to a disaster such as an earthquake.

[0002]

2. Description of the Related Art Generally, as shown in FIG. 10, a quay 50 (for example, a jetty) on which a freighter berths is landfilled with landfill sand 51 (paved with asphalt or concrete) and the landfill. Caisson 52 installed at the tip of ocean side sand 51 and the foundation sand 5
3, and a pair of rails 55 for moving the container crane 54 along the quay 50 is laid on the upper surface of the caisson 52 and the landfill sand 51.

[0003]

On the quay 50, due to a strong earthquake or wave, as shown in FIG. 11, the landfill sand 51 and the foundation sand 53 flow and the caisson 52 tilts or falls. It may end up.

In the conventional repair method in such a case, the landfill sand 51 and the foundation sand 53 are completely re-mounted, and the caisson 52 is installed again, which requires a lot of time for repair. There are challenges.

Therefore, an object of the present invention is to provide a method for repairing quay facilities which can solve the above problems.

[0006]

Means for Solving the Problems The means for solving the problems in the present invention is to bury a subsidence portion of the fluidized inland side landfill sand and to fill a caisson that has fallen or tilted and the landfill earth and sand soil. A steel box-shaped box that is equipped with guide rails for loading cranes from above the steel pipe piles by fastening multiple steel pipe piles at specified intervals along the earth retaining seabed on the ocean bottom of the caisson. Of the steel pipe piles are placed side by side along the earth retaining wall, the heads of the steel pipe piles are inserted into the insertion holes formed in the guide bases, and the steel pipe piles are attached to the temporary fixing members provided on the upper surface of the guide bases facing the insertion holes. The heads of the guide rails are abutted to temporarily fix the guide rails, and the guide rails are moved horizontally to align the ends of the guide rails on each guide rail, and weld the steel pipe pile and the guide rails. , Steel protruding from the insertion hole while removing the temporary fixing device It is intended to cut the head of the pile height adjustment between the upper surface height and the guide block top guide plate of the steel pipe pile.

[0007] In addition, the caisson, which has fallen or tilted, is filled with the subsided portion of the landfill sand that has flowed inland, and the land is filled with earth, and the caisson is attached to the seabed on the ocean side along the earth retention. A plurality of steel pipe piles are driven at predetermined intervals, then the heads of the steel pipe piles are cut to make the upper end height position of each steel pipe pile the same, and a guide rail for guiding the loading crane is installed from above the steel pipe piles. A box-shaped steel guide is installed
Place the steel pipe pile heads side by side along the earth retaining wall and insert the heads of the steel pipe piles into the insertion holes formed in the guide stand, and bring the back side of the upper guide plate of the guide stand into contact with the upper end surface of the steel pipe piles to make the guide stand horizontal. The end portions of the guide rails on each guide base are aligned with each other by moving the guide rails in the direction, and the steel pipe pile side and the guide base side are welded.

[0008]

In the above means for solving the above problems, the caisson that has fallen or tilted is filled with the submerged part of the landfill sand that has flowed inland side, and the caisson that has been landfilled is earth-retained, and the sea bottom of the caisson is filled with soil. A plurality of steel pipe piles are driven along the clasps at specified intervals, and from above the steel pipe piles, a box-shaped steel guide stand with guide rails for loading crane guidance is lined up and lowered along the retaining cleat. Insert the head of each steel pipe pile into the insertion hole formed in the guide, and temporarily fix the guide by abutting the head of the steel pipe to the temporary fixing member provided on the upper surface of the guide so as to face the insertion hole. Then, the guide rails are moved horizontally to align the ends of the guide rails on each guide stand, weld the steel pipe pile and the guide stand, remove the temporary fixing device, and project from the insertion hole. The top of each steel pipe pile is cut by cutting the head of each steel pipe pile. Guide table of the height adjustment of the upper guide plate and to repair the quay facilities.

[0009] In addition, a caisson that has fallen or tilted while the subsidence portion of the landfill sand that has flowed is filled up, and the caisson that has fallen or tilted is earth-retained, and the caisson is on the ocean floor on the ocean side. A plurality of steel pipe piles are driven at predetermined intervals, then the heads of the steel pipe piles are cut to make the upper end height position of each steel pipe pile the same, and a guide rail for guiding the loading crane is installed from above the steel pipe piles. A box-shaped steel guide is installed
Place the steel pipe pile heads side by side along the earth retaining wall and insert the heads of the steel pipe piles into the insertion holes formed in the guide stand, and bring the back side of the upper guide plate of the guide stand into contact with the upper end surface of the steel pipe piles to make the guide stand horizontal. By moving the guide rails on each guide stand, the ends of the guide rails are aligned with each other, and the steel pipe pile side and the guide stand side are welded to repair the quay facilities.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A method for repairing quay facilities according to the present invention will be described below with reference to the drawings. First, a first embodiment of the present invention will be described with reference to FIGS. 1 to 5. This is as shown in the overall view of the quay facility 1 after repair in FIG. When the caisson 4 is tilted due to the flow of 3 and the caisson 4, the unnecessary portion of the foundation soil 2 is removed, and the block 5 etc. is applied to this, and the fluidized settlement portion of the landfill 3 on the inland side is filled up and leveled horizontally. Then, a vertical earth retaining member 6 is applied to the upper end of the tilted caisson 4.

Subsequently, as shown in the plan views of FIGS. 1 and 2, a plurality of steel pipe piles 7 are provided at predetermined intervals (for example, earth retaining 6) on the ocean bottom of the caisson 4 along the earth retaining 6 and offshore. Drive every 4 m) along and offshore.

Next, from above the steel pipe pile 7, the loading crane 1
A plurality of box-shaped steel guide stands 12 each having a guide rail 11 for 0 guide are arranged and lowered along the earth retaining wall 6 (at this time,
As shown in the enlarged cross-sectional views of FIGS. 3 and 4, the heads 7a of the steel pipe piles 7 are formed in the bottom plate 13 and the upper guide plate 14 of the guide 12 and the upper and lower insertion holes 15 are formed. To insert.

The guide rail 11 is installed on an installation plate 16 which is bolted to the upper guide plate 14 of the guide base 12 through a long hole extending in a direction perpendicular to the guide rail 11, and the guide base 12 is also installed. A gate-type temporary fixing member 20 is welded to the upper surface of the guide facing the respective upper insertion holes 15. The temporary fixing member 20 is a leg that is erected on the upper surface of the guide 12 across the insertion holes 15. The steel pipe pile 7 is formed by inserting the steel pipe pile 7 into the insertion hole 15 and the positioning plate 22 which is provided on the upper portion of the leg portion 21 and contacts the upper end surface of the steel pipe pile 7.
The guide plate 12 is temporarily fixed by abutting the upper end surface thereof on the positioning plate 22.

In each guide board 12, the upper guide plate 1
The height adjustment for leveling 4 on the extension of the upper surface of the landfill 3 is performed by inserting the shim member 25 between the upper end surface of the steel pipe pile 7 and the back surface of the positioning plate 22.

Next, the jack device 26 is inserted between the leg portion 21 of the temporary fixing member 20 and the side surface of the head 7a of the steel pipe pile 7, and the jack device 26 is driven to guide the steel pipe pile 7 to the guide table. By moving 12 in the horizontal direction (horizontal direction in the figure) D, the end surfaces of the guide rails 11 installed on the guides 12 are roughly aligned.

After this work is completed, an operator enters the inside of the guide stand 12 through the manhole 27 provided at the end of the guide stand 12, and is attached to the upper peripheral surface of the steel pipe pile 7 at 90 ° intervals.
The guide plate 12 and the steel pipe pile 7 are fixed by welding 8 and welding the mounting plate 28 to the rib member 29 inside the guide plate 12.

Subsequently, as shown in the sectional view of FIG. 5, the temporary fixing member 20 is cut off, and the head portion 7a of the steel pipe pile 7 projecting from the insertion hole 15 is cut so that the upper end surface of each steel pipe pile 7 is cut. It is aligned with the upper guide plate 14 of the guide 12.

Then, a lid 30 is welded to the head portion 7a of the steel pipe pile 7 so as to close the upper insertion hole 15, and a half-divided sealing plate 31 is provided around the lower insertion hole 15 in the steel pipe pile 7. On the upper guide plate 14 of the guide 12 by fitting and welding from around
Asphalt pavement 3 with a predetermined thickness (for example, 100 mm)
Step 2 is performed, the bolts are loosened, the end surfaces of the guide rails 11 are accurately aligned with each other, and the wharf equipment 1 is completed.

It should be noted that the steel pipe pile 7 and the guide base 12 are previously subjected to heavy coating for long-term use.
As described above, according to the first embodiment of the present invention, unnecessary portions of the foundation sediment 2 that has flowed due to an earthquake are removed, and only the subsidence portion of the landfill sediment 3 on the inland side is filled up and the caisson 4 that is tilted is filled up. Since the earth retaining material 6 of the accumulated earth and sand was applied, it is not necessary to re-enter the fluidized earth and sand 2, 3
Since the 2 and the pile 7 are made of steel, the conventional curing period is not necessary, and therefore, it takes no effort and time to restore the equipment.

Even if the accuracy of the pile driving in the depth direction is somewhat poor, the height of the steel pipe pile 7 can be easily adjusted by cutting the head portion 7a of the steel pipe pile 7 protruding from the upper guide plate 14.

Further, the fixing work between the steel pipe pile 7 and the guide base 12 is performed by welding the mounting plate 28 to the rib member 29 inside the guide base 12 in the guide base 12, so the progress of the work depends on the weather. Further, since the upper and lower insertion holes 15 are closed after the steel pipe pile 7 and the guide base 12 are fixed, corrosion of the fixed portion can be prevented for a long time.

Next, a second embodiment of the present invention will be described with reference to FIGS. 6 to 9. This is similar to the first embodiment, except that unnecessary portions of the foundation earth and sand 2 are removed and blocks 5 and the like are applied. At the same time, the submerged portion of the fluidized reclaimed soil 3 is reclaimed, the tilted caisson 4 is provided with earth retaining material 6, and a plurality of steel pipe piles 7 are driven into the seabed of the caisson 4 at predetermined intervals.

Subsequently, as shown in the side view of FIG. 6, the head portion 7a of the steel pipe pile 7 is cut at a predetermined height position so that the upper end height positions of the respective steel pipe piles 7 are made the same. As shown in the cross-sectional view, the guide bases 12 are arranged and lowered along the earth retaining 6 from above the steel pipe piles 7, and the heads 7a of the steel pipe piles 7 are inserted into the insertion holes 15 formed in the bottom plate 13 of the guide bases 12. Then, the upper end surface of the steel pipe pile 7 and the flange 40 of the shape steel 39 attached to the rear surface of the upper guide plate 14 of the guide 12 are brought into contact with each other.

On the other hand, as shown in the perspective view of FIG. 8 and the side view of FIG. 9, a plate-like positioning is performed in the holding space 42 between the pair of holding members 41 which are previously attached to the predetermined positions of the respective guides 12. The guide base 12 is moved in the horizontal direction D so that the metal fitting 43 is fitted therein, and the end surfaces of the guide rails 11 are accurately aligned with each other.

Further, as shown in FIG. 7, the height adjustment for keeping the upper guide plate 14 horizontal on the extension of the upper surface of the landfill 3 is performed by the upper end surface of the steel pipe pile 7 and the flange 40 of the shaped steel. This is done by inserting the shim member 25 in between.

When this work is completed, a mounting plate 28 is welded to the upper peripheral surface of the steel pipe pile 7, and this mounting plate 28 is further welded to a rib member 29 inside the guide 12 to guide the guide 12 and the steel pipe pile. Fix 7 and.

Further, the insertion hole 15 has a half-divided sealing plate 31.
Is fitted from the periphery of the steel pipe pile 7 to close it by welding, and the asphalt pavement 32 is provided on the upper guide plate 14 of the guide stand 12, and the bolt is loosened to loosen the guide rail 11
The quayside equipment 1 is completed by accurately aligning the end faces of the.

Thus, according to the second embodiment of the present invention,
As in the first embodiment, it is not necessary to re-enter the fluidized sands 2 and 3, and the curing period for the guide 12 and the piles 7 is unnecessary,
Therefore, even if reconstruction of the quay facility 1 does not take time and effort, and the pile driving accuracy in the height direction is slightly poor, the upper guide plate 1
The height of the steel pipe pile 7 can be adjusted by cutting the head portion 7a of the steel pipe pile 7 protruding from No. 4, and the steel pipe pile 7 and the guide 12
The fixing work with is performed by welding the mounting plate 28 to the rib member 29 inside the guide base 12 in the guide base 12, so it is not affected by the weather, and after fixing the steel pipe pile 7 and the guide base 12. Since the insertion hole 15 is closed, corrosion of the fixed portion can be prevented for a long period of time.

In addition, when the end faces of the guide rails 11 are aligned with each other, the holding space 42 between the holding members 41.
Since the positioning metal fitting 43 is fitted in the guide rail 1, the guide rail 1 can be easily used without using a jack device.
The end faces of 1 can be aligned with each other.

[0030]

EFFECTS OF THE INVENTION As is clear from the above description, according to the present invention, the subsidence portion of the inland side landfill sand that has flowed due to an earthquake is landfilled, and the tilted caisson is used as it is to provide earth retention. The guide pipe made of steel was welded to the steel pipe pile driven into the seabed of the caisson on the ocean side, and this guide base was used as a quay to guide the container crane. There is no need to repair quayside equipment, and there is no need for a concrete curing period as in the past, so there is an effect that the restoration work of equipment does not take time and effort.

[Brief description of drawings]

FIG. 1 is an overall side view of a quay facility repaired by a repair method showing an embodiment of the present invention.

FIG. 2 is a plan view showing the arrangement of steel pipe piles in the process of being repaired.

FIG. 3 is a cross-sectional view showing a state where a guide stand is similarly installed on the steel pipe pile.

FIG. 4 is an enlarged cross-sectional view showing a state in which a guide is installed on the steel pipe pile.

FIG. 5 is an enlarged cross-sectional view of a state in which the temporary fixing member and the head of the steel pipe pile are also removed.

FIG. 6 is a side view showing a state in which the head of the steel pipe pile is cut in the second embodiment of the present invention.

FIG. 7 is an enlarged cross-sectional view showing a state in which a guide stand is similarly installed on the steel pipe pile.

FIG. 8 is an enlarged perspective view showing a state in which the positioning metal fitting is also inserted into the holding member.

FIG. 9 is a side view showing a state in which the positioning metal fitting is also inserted into the holding member.

FIG. 10 is an overall side view of a conventional quay facility.

FIG. 11 is an overall side view of the same quay facility in a collapsed state.

[Explanation of symbols]

 1 Wharf equipment 2 Foundation sediment 3 Landfill sediment 4 Caisson 5 Block 6 Earth retaining 7 Steel pipe pile 10 Loading crane 11 Guide rail 12 Steel guide stand 13 Bottom plate 14 Upper guide plate 15 Insertion hole 16 Installation plate 20 Temporary fixing member 21 Legs Part 22 Positioning plate 25 Shim member 26 Jack device 27 Manhole 28 Mounting plate 29 Rib member 30 Lid 31 Sealing plate 32 Asphalt pavement

Claims (2)

[Claims] 1. A method of repairing a quay wall equipment for repairing a collapsed quay wall equipment, which comprises burying the submerged land subsidence portion of the reclaimed earth and refilling the caisson that has fallen or tilted. It is a box type in which a plurality of steel pipe piles are driven along the soil retainer at regular intervals on the ocean bottom of the caisson, and guide rails for loading crane guidance are installed from above the steel pipe piles. Steel guides are lined up along the earth retaining wall, and the heads of the steel pipe piles are inserted through the insertion holes formed in the guides, and the temporary fixing members are provided on the upper surface of the guides facing the insertion holes. The guide rails are temporarily fixed by abutting the heads of the steel pipe piles, and the guide rails are moved in the horizontal direction to align the ends of the guide rails on each guide stand, and the steel pipe piles and the guide bases are aligned. Welded, removed the temporary fixing device and projected from the insertion hole A method for repairing quay facilities, which comprises cutting the head of a steel pipe pile and matching the height of the upper surface of each steel pipe pile with the height of the upper guide plate of the guide. 2. A method for repairing quayside equipment that has collapsed, wherein the caisson that has fallen or tilted and is filled up with the subsidence portion of the flowing inland side landfilling earth and sand has been reclaimed. The steel pipe piles are installed at the ocean bottom seabed of the caisson at predetermined intervals along the soil retainer, and then the heads of the steel pipe piles are cut to determine the top height position of each steel pipe pile. The same, but a box-shaped steel guide stand was installed on the steel pipe pile from above the guide rail for guiding the loading crane. Align the ends of the guide rails on each guide by moving the guides in the horizontal direction by inserting them through the insertion holes and bringing the back side of the upper guide plate of the guide into contact with the upper end surface of the steel pipe pile. The steel pipe pile side and the guide base side are welded together. Method of repairing quay facilities.