JP4339708B2 - Provisional deadline structure and provisional deadline box installation method - Google Patents

Description

  The present invention relates to a temporary closing structure and a method for installing a temporary closing box.

As an installation method of the temporary cutoff structure and the temporary cutoff box, for example, there is an invention of JP-A-2002-201649. Since the present invention uses a temporary wall box having a double wall structure with watertightness, it can be easily towed and transported on the water using the buoyancy of the box itself.
In addition, since the ballast water can be poured and drained inside the box, the box can be laid down and levitated, so there is no need for a large work ship such as a crane ship. Could be installed and removed.
Japanese Patent No. 2002-201649

  However, since the above-described provisional closing structure and provisional closing box have a double wall structure, there is a problem that the member cross section becomes large and the manufacturing cost increases. Moreover, not only a facility for pouring and draining ballast water inside the box is required, but also a highly difficult balance adjustment and draft adjustment using this facility are required. Furthermore, there has been a problem that it is difficult to join the temporary cut-off wall body that has been divided and transported on the water.

  The present invention has been made in view of the above problems, and its object is to provide a temporary closing structure and a method for installing a temporary closing box that are low in production cost and easy to install and remove. is there.

The provisional deadline structure of the present invention is configured such that a small work platform ship or an assembly-type float is connected with a connecting member in parallel with an appropriate gap portion to form a water-borne article. At least one of them and a planar U-shaped temporary cut-off box with an opening on the front side is provided with a moving means provided on one end side and a fixing means provided on the other end side so that the opening on the front side faces upward or downward. The moving means comprises a rail installed on the water transport side and a guide that slides on the rail, and a temporary closing box is rotatably installed on the guide with a bolt as a support shaft, The fixing means is composed of a joint projection receiver installed on the water transporting material side and a joint projection installed on the temporary closing box side and fixed to the joint projection receiver. When the fixing of the joint projection is released from the joint projection receiver The temporary deadline box is the guide Characterized in that it rotates the door to the support shaft.
In addition, the provisional deadline box is installed in such a way that a small work platform or an assembly type float is connected in parallel with a connecting material in parallel with a connecting material to form a water-borne material. A front U-shaped temporary closing box having an opening on at least one of the front side and a moving means provided on one end side and a fixing means provided on the other end side so that the opening on the front side is directed upward or downward. The moving means is composed of a rail installed on the surface of the water transport and a guide that slides on the rail, and a temporary closing box is rotatably installed on the guide with a bolt as a support shaft. The fixing means is composed of a joint projection receiver installed on the water carrying object side and a joint projection installed on the temporary closing box side and fixed to the joint projection receiver, and the fixing of the joint projection is released from the joint projection receiver. Then the temporary deadline box is the guide A temporary closing structure that rotates with a bolt as a supporting shaft is formed, and the two temporary closing structures are transported on the water, facing each other with the underwater structures in between, and After joining the underwater structure and removing the joint protrusion on the fixing means of the temporary closing box from the joint protrusion receiver of the water transported object, the bolt in the guide of the moving means is used as the support shaft. The openings on the front side face each other, and the temporary closing boxes facing each other are moved by a moving means so as to surround the underwater structure.
In addition, the provisional deadline box is installed in such a way that a small work platform or an assembly type float is connected in parallel with a connecting material in parallel with a connecting material to form a water-borne material. A front U-shaped temporary closing box having an opening on at least one of the front side and a moving means provided on one end side and a fixing means provided on the other end side so that the opening on the front side is directed upward or downward. The moving means is composed of a rail installed on the surface of the water transport and a guide that slides on the rail, and a temporary closing box is rotatably installed on the guide with a bolt as a support shaft. The fixing means is composed of a joint projection receiver installed on the water carrying object side and a joint projection installed on the temporary closing box side and fixed to the joint projection receiver, and the fixing of the joint projection is released from the joint projection receiver. Then the temporary deadline box is the guide A temporary deadline structure that rotates with a bolt as a support shaft is formed, and one temporary deadline structure is transported on the water to face the wall surface of the underwater structure. After closely contacting the wall surface of the structure, remove the joint protrusion on the fixing means of the temporary closing box from the joint protrusion receiver of the water transported object, so that the temporary closing box is perpendicular to the bolt on the guide of the moving means. And the opening on the front side faces the wall surface of the underwater structure, and then the temporary closing box is moved by the moving means to be in close contact with the wall surface of the underwater structure.

  The manufacturing cost of the temporary closing structure can be reduced. Workability and safety are high because it is possible to locate, suspend, and lift the temporary closing box under a stable condition using a floating material as a work floor. Work such as ballast water adjustment and draft adjustment is not required. Positioning of the horizontal plane and the vertical plane at the time of surface joining of the temporary closing box is facilitated. The temporary closing box can be positioned or suspended and lifted without requiring a large machine such as a crane carrier.

  Hereinafter, the installation method of the temporary closing structure and the temporary closing box of the present invention will be described. First, the provisional deadline structure will be described, and then the installation method of the provisional deadline box will be described. In each embodiment, the same components are described with the same reference numerals, and different configurations are given different reference numerals. To explain. FIGS. 1 to 5 are views for explaining a temporary closing structure, and FIGS. 6 to 16 are views for explaining a method for installing a temporary closing box using the temporary closing structure.

  As shown in FIG. 1, the temporary cutoff structure 1 includes a temporary cutoff box 2 and a water-borne article 3 installed on both sides so as to sandwich the temporary cutoff box 2. The temporary cutoff box 2 is fixed with a moving means 6 composed of a guide 4 and a rail 5, a joint projection 7 and a joint projection receiver 8 in a state in which the opening on the front side faces downward, that is, in a horizontal state. As shown in FIG. 1, the means 9 is fixed to the water transport article 3 and floats on the water such as the sea, river, lake, etc. and transports it to the repair / reinforcement point in the underwater structure. As described above, the temporary closing box 2 is not limited to the state in which the opening on the front side is directed downward, and can be transported with the opening on the front side facing upward.

  In addition, the water-borne article 3 is constituted by assembling a float 10 connected with a plurality of connecting members 11 at appropriate intervals, and a rail 5 and a joint projection receiver 8 are provided inside the float 10. Further, the connecting material 11 protrudes from the upper surface of the float 10 and is connected to each other by a plurality of vertical members 12. The water transport 3 is not limited to the float 10 described above, but may be a small transport carrier. In the case of a small transport carrier, the rail 5 and the joint projection receiver 8 are provided on the side wall of the ship.

  On the other hand, the temporary closing box 2 has a planar U shape with both upper and lower surfaces and the front side opened, and is configured by attaching a skin plate (steel plate) 15 to a frame body 14 of an H-shaped rope 13. Further, a guide 4 and a joining projection 7 are provided on the side surface of the temporary closing box 2, and a rubber packing 17 is provided on each of the joining surfaces of the front surface and the bottom surface.

  As shown in FIG. 4, the guide 4 is configured by installing a sliding plate 19 between the inner and outer guide plates 18, and the outer guide plate 18 is attached to the fixing plate 20 of the temporary cutoff box 2 with bolts 21. It is joined freely. Therefore, when the guide 4 is fitted to the rail 5, the sliding plate 19 slides on the rail, and the inner and outer guide plates 18 prevent derailment from the rail 5. In addition, a rail unit 22 is detachably fitted in a part of the rail 5, and when the rail unit 22 is removed to form a clearance gap 23 as shown in FIG. Can be made.

  On the other hand, the joining protrusion 7 is formed in a stepped shape with an H-shaped rope, and is fitted to the step-like joining protrusion receiver 8 and fixed with a bolt 24. Therefore, the temporary closing box 2 is installed on the water transported object 3 by the moving means 6 and the fixing means 9, but when the fixing means 9 is released, the moving means 6 can move horizontally between the floats 10. It is possible to move the bolt 21 of the guide 4 vertically after rotating it around the support shaft.

  Next, an installation method of the temporary cutoff box 2 in the temporary cutoff structure 1 will be described. 6 to 13 are for installing the temporary closing box 2 so as to surround the pier 25 and the like.

  First, as shown in FIG. 6, the two temporary cutoff structures 1 are transported by water on a towed ship, and face each other with the pier 25 in between. Since the temporary cutoff structure 1 has the temporary cutoff box 2 horizontally installed between the floaters 10, water resistance is low and water transportation becomes easy.

  Next, as shown in FIG. 7, the two temporary cutoff structures 1 are joined so that the pier 25 is surrounded by the float 10. At this time, the temporary closing box 2 is horizontally fixed by the moving means 6 and the fixing means 9, and the fixing means 9 side is connected to the connecting member 11 by the suspension wire 26.

  Next, as shown in FIG. 8, when the joining protrusion 7 of the temporary closing box 2 is removed from the joining protrusion receiver 8 of the float 10 and the suspension wire 26 is extended little by little, the temporary closing box 2 becomes the bolt 21 of the guide 4. Rotate vertically around the axis. At this time, the temporary closing box 2 is in a state of facing the bridge pier 25, that is, the bridge pier 25 is surrounded by the temporary closing box 2, and the opposed temporary closing box 2 has a guide roller at the tip. A cutting beam 28 having 27 is installed in advance.

  Next, as shown in FIG. 9, the suspension wire 26 is removed from the facing temporary closing box 2 and the temporary closing box 2 is horizontally moved and joined so as to surround the pier 25 and fixed with bolts 24. To do. At this time, the temporary closing box 2 remains installed on the float 10.

  Next, as shown in FIGS. 10 and 11, the temporary closing box 2 is lifted by the suspension wire 26, the guide 4 and the rail unit are removed from the rail, and a slip-through gap 23 is formed in the rail 5. Next, when the temporary closing box 2 is lowered downward while extending the suspending wire 26 little by little, the guide 4 passes through the clearance 23 and comes off the rail 5, and the temporary closing box 2 is placed on the footing 29 of the pier 25. Installed.

  Next, as shown in FIG. 12, the guide roller 27 of the cut beam 28 is replaced with a jack 30, and the water inside the temporary closing box 2 installed so as to surround the pier 25 is drained to perform dry work. After forming the space, the float 10 separated from the temporary closing box 2 installed on the footing 29 is towed to another place.

  Further, FIGS. 13 to 16 show a method of installing a temporary closing box on the wall surface of the quay, which is almost the same as the above installation method. In order to form a dry space on the wall surface of the quay 31, one temporary closing box 33 having a bottom plate 32, that is, the temporary closing box 2 having only an upper surface and a front surface opened is used.

  First, in the same manner as described above, the temporary cutoff structure 1, that is, the temporary cutoff box 33 horizontally installed between the floats 10, is transported on the tow ship to the vicinity of the quay 31, and the pulling wire 34 from the quay 31 is attached. It joins to the float 10 (refer FIG. 13).

  Next, as shown in FIG. 14, the float 10 is attracted to the quay 31 by the pulling wire 34 and brought into close contact with the wall surface, and the horizontal temporary closing box 33 is rotated vertically. The temporary closing box 2 is rotated by the same procedure as described above.

  Next, as shown in FIG. 15, the temporary cutoff box 33 is moved horizontally by the guide 4, and the temporary cutoff box 33 is separated from the float by the same procedure as described above and is brought into close contact with the wall surface of the quay 31. . Then, using this float as a scaffold, the water inside the temporary closing box 2 is drained to form a dry work space.

  Next, as shown in FIG. 16, when the float 10 from which the temporary closing box 33 is separated is towed to another place, a dry work space is formed on the outer surface of the quay.

It is a temporary cutoff structure, (1) is a front view, (2) is a top view. It is a temporary closing structure, (1) is a side view, (2) is a side view of a float. It is a temporary closing box, (1) is an AA line sectional view, (2) A front view, (3) is a BB line sectional view. (1) is a front view of a guide fitted to the rail, (2) is a plan view thereof, (3) is a side view thereof, and (4) is a view in which the guide is removed from the rail. It is a fixing means, (1) is a front view, (2) is a sectional view taken along the line CC, and (3) is a plan view. (1) is a plan view of a temporary closing structure sandwiching a pier, and (2) is a sectional view of (1). (1) is a plan view of a temporary closing structure to which a float is joined, (2) is a sectional view of (1), and (3) is an enlarged sectional view of a main part. (1) is a plan view of a temporary cutoff structure obtained by rotating a temporary cutoff box, (2) is a sectional view of (1), and (3) is an enlarged sectional view of a main part. (1) is a plan view of a temporary closing structure in which a temporary closing box is joined, (2) is an enlarged view of the main part, (3) is a cross-sectional view of (1), and (4) is an enlarged cross-sectional view of the main part. is there. (1) is sectional drawing which lifted the temporary closing box, (2) is the principal part enlarged view of a rail. (1) is sectional drawing which removed the guide from the rail, (2) is a principal part enlarged view. (1) is a plan view in which the temporary closing box is installed on the footing, (2) is a cross-sectional view of (1), and (3) is a cross-sectional view of draining water inside the temporary closing box. (1) is a plan view of a temporary cutoff structure towed in the vicinity of a quay, and (2) is a side view of (1). (1) is a plan view of a temporary closing structure obtained by rotating a temporary closing box vertically, and (2) is a sectional view of (1). (1) is a plan view of a temporary cutoff structure in which the temporary cutoff box is in contact with the wall surface of the quay, and (2) is a sectional view of (1). (1) is the top view which contacted the temporary closing box body to the wall surface of a quay, (2) is sectional drawing of (1).

Explanation of symbols

1 provisional deadline structures 2, 33 provisional deadline box body 3 Water transported article 4 guide 5 rail 6 moving means 7 connected projecting 8 connected projecting receiving 9 fixing means 10 float 11 coupling member 12 vertical member 13 H Katachitsuna 14 frame member 15 Skin Plate 17 Rubber packing 18 Guide plate 19 Sliding plate 20 Fixed plate 21, 24 Bolt 22 Rail unit 23 Glide gap 25 Bridge pier 26 Suspension wire 27 Guide roller 28 Cutting beam 29 Footing 30 Jack 31 Quay wall 32 Bottom plate 34 Pulling wire

Claims (3)

A small work table ship or an assembly type float is connected with a connecting material in parallel with an appropriate gap to form a water-borne material, and at least one of the upper and lower surfaces and the front side are opened in the gap of the water-borne material. The flat U-shaped temporary closing box is installed with the moving means provided on one end side and the fixing means provided on the other end side so that the opening on the front side faces upward or downward, and the moving means is It consists of a rail installed on the material to be transported and a guide that slides on the rail. A temporary closing box is rotatably installed on the guide using a bolt as a support shaft, and a fixing means is installed on the water transport material side. And a joint projection that is installed on the side of the temporary fastening box and is fixed to the joint projection receiver. When the fixing of the joint projection is released from the joint projection receiver, the temporary fastening box receives the bolt of the guide. to rotate the shaft Provisional deadline structure characterized and. Two temporary deadline structures according to claim 1 are transported on the water, and the underwater structures are faced to each other, and the temporary transported structures are joined together to surround the underwater structures. By removing the joint protrusion in the fixing means of the closing box from the joint protrusion receiver of the water transported object, the temporary closing box is rotated vertically around the bolt in the guide of the moving means as a support shaft. The temporary closing box is installed by moving the facing temporary closing boxes facing each other with a moving means so as to surround the underwater structure . The temporary deadline structure according to claim 1 is transported on the water and faced to the wall surface of the underwater structure, and the temporary transport structure is brought into close contact with the wall surface of the underwater structure, By removing the joint protrusion on the body fixing means from the joint protrusion receiver of the water transportation object, the temporary closing box is rotated vertically around the bolt in the guide of the moving means as a support shaft, and the opening on the front side is underwater structure. A method for installing a temporary closing box, wherein the temporary closing box is moved to a close contact with the wall of an underwater structure after facing the wall of the object .

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