JPH0533551Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention can be installed on the quay wall near the tidal zone to prevent corrosion from occurring in the head splash zone and tidal zone of a steel sheet pile quay. This invention relates to a work box for a steel sheet pile quay that drains water and keeps the quay wall near the tidal zone dry for work such as investigation, repair, inspection, and corrosion prevention.

(Prior art) In general, when this type of work box is installed on a steel sheet pile quay wall, a water-tight system is used to prevent water from leaking between the work box and the steel sheet pile quay surface when the water inside is drained. However, as shown in Fig. 4, the steel sheet pile quay 1 has vertical grooves 2, 2 lined up at regular intervals on its surface, so it is necessary to close the insides of these grooves 2, 2. be.

Therefore, conventionally, as shown in FIGS. 5 and 6, protrusions 4a, 4a, . The work box 3 is attached to the steel sheet pile quay 1 by fitting it into the grooves 2, 2 through a gasket 5.

(Problem that the invention aims to solve) In the conventional method of attaching work boxes as described above, the steel sheet pile quay 1 has a structure in which U-shaped steel sheet piles 6, 6, ... are connected in the width direction as shown in Figure 4A, or a structure in which Z-shaped steel sheet piles 7, 7, ... are connected in the width direction as shown in Figure 4B, so that the play between the joints between each sheet pile becomes an error and causes variation in the spacing between adjacent grooves 2, 2, ....

On the other hand, since the intervals between the protruding pieces 4a, 4a, ... of the work box 3 are predetermined, a large number of grooves 2,
2, . . ., the projecting pieces 4a, 4a, . . . do not correspond to the grooves 2, 2, .

In view of these conventional problems, the present invention aims to provide a work box for a steel sheet pile berth that can be installed in accordance with variations in the groove spacing of the steel sheet pile berth.

(Means for Solving the Problems) In order to achieve the above-mentioned objectives, the present invention has a box whose top surface and the surface on the side to be attached to the steel sheet pile quay are open, and which prevents the case from coming into contact with the quay. In a steel sheet pile wharf work box that is attached to the steel sheet pile wharf with a water-stop seal interposed between the surface and the steel sheet pile wharf surface to form a dry space for work inside, the bottom plate of the box A plurality of pieces fitting into the grooves of the steel sheet pile pier are supported on the quay wall contact surface of the steel sheet pile pier so as to be movable in the width direction of the grooves.

(Function) In this steel sheet pile wharf work box, the spacing of each piece is roughly matched to the concave groove spacing of the steel sheet pile wharf in advance, and in this state, when brought close to the wharf, the tip of the piece body forms the concave groove. When inserted into the groove, each piece is naturally moved in a direction that conforms to the groove and fits into the groove.

(Example) Next, an example of implementation of the present invention will be described with reference to FIGS. 1 to 3.

In the figure, reference numeral 11 indicates a steel sheet pile wall work box according to the present invention.

This work box 11 is a box 1 whose top surface and the side to be installed near the tidal zone of the steel sheet pile quay 1 are open.
2, and left and right side walls 13, 13 of the box 12.
Outside, along the vertical direction, there is a float tank 14a,
14b and 14c are attached. Such a box 12 is divided into three parts by the dividing surfaces 15, 15 for convenient transportation. Although not shown in the figure, the split surfaces 15, 15 are connected by a flange connection. A work floor 16 and a ladder 17 for climbing are attached to the inner surface of the box 12.

The open side edge of the bottom plate 18 of the work box 11 and the vertically oriented open side edges of the both side walls 13, 13 connected thereto are quay wall contact surfaces 19, 20, 20, and the respective quay wall contact surfaces 19, 20 , 20, water-stop gaskets 21, 22, 22 are attached to the front surfaces of the containers.

The quay contact surface 19 at the edge of the bottom plate 18 is connected to both side walls 1.
It is composed of a steel plate 23 wider than the quay wall contact surfaces 20, 20 of No. 3 and 13, and a water-stop packing 21 is attached to the front surface of the plate 23.

As shown in FIGS. 2 and 3, the plate material 23 supports a plurality of pieces 24, 24, . . . for fitting into the grooves 2, 2, .

Each piece 24 has a steel pedestal part 24a fixed to the tip of a steel support fitting 25 having a U-shaped cross section, and a packing material 24b is fixed to the outer surface of the pedestal part 24a. The outer shape of the groove 2 is formed to match the cross-sectional shape of the groove 2.

On the other hand, the plate material 23 constituting the quay wall contact surface 19
An elongated hole 26 is opened horizontally at the attachment point of each piece 24, and a short cylindrical portion 26a is formed around the periphery of the elongated hole 26.

A support fitting 25 of the piece body 24 is inserted into this elongated hole 26 from the front side to the back side, and a retaining fitting 27 is bolted to the protruding end surface on the back side.
The piece body 24 is slid along the elongated hole 26.

Note that a window hole 28 is also formed in the water-stop gasket 21 on the surface of the plate material 23 at the position of the elongated hole 26, and the window hole 28 and the elongate hole 26 are formed with the piece body 24 positioned on the surface side of the water-stop gasket 21. The support fitting 25 is inserted inside.

On the back side of the plate material 23, a pair of spring receiving plates 29, 29 are integrally provided on the outside of both ends of the elongated hole 26, and these spring receiving plates 29, 29 are integrally provided.
A pair of bolts 30, 30 are screwed together so as to move forward and backward in the direction of the coaxial center, and coil springs 31, 31 are stretched between the tips of the bolts 30, 30 and the support fitting 25. The coil springs 31, 31 allow the support fitting 25 to be positioned approximately at the center of the elongated hole 26 in the longitudinal direction.

When using the steel sheet pile quay work box constructed in this way, the entire work box 11 is floated on water at the construction site, and each float tank 14a, 14b,
Pour water into 14c to adjust the buoyancy and float to the desired installation height.

In this state, each piece body 24, 24... is attached to the steel sheet pile quay 1
After adjusting the horizontal position of the work box 11 so that it roughly faces the concave grooves 2, 2..., each piece body 2
4, 24... into the grooves 2, 2... while pushing the work box 11 toward the quay surface.

At this time, if there are variations in the distance between the grooves 2, 2, the side surfaces of each piece 24 will come into contact with the inner surface of the groove 2, and as a result, the pieces 2
4 is applied with a force in the width direction of the groove 2, and this force moves the piece body 24 in the horizontal direction against the elasticity of the springs 31, 31 to a position where it matches the groove 2.

In this way, each piece body 24 conforms to the corresponding groove 2 and is fitted into the groove to stop water.

After that, the water in the work box 11 is drained to form a dry work space inside, and the quay wall surface is repaired and other treatments are performed.

(Effect of the invention) The steel sheet pile berth work box of the present invention is constructed as described above, and a plurality of piece bodies that fit into the grooves of the steel sheet pile pier are attached to the pier contact surface of the bottom plate of the box. By supporting it so that it can move freely in the width direction, even if there are variations in the spacing between the grooves, each piece will move and fit into each groove when joining the work box to the quay. This resulted in a good water stoppage.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing a work box as an example of the implementation of the present invention, Fig. 2 is an enlarged cross-sectional view of the piece mounting part, Fig. 3 is a sectional view taken along the - line in Fig. 2, and Fig. 4 A ,B
5 is a perspective view of a conventional work box, and FIG. 6 is a plan view showing the relationship between the work box and the steel sheet pile wharf. 1... Steel sheet pile quay, 2... Concave groove, 11... Work box, 18... Bottom plate, 19, 20... Quay wall contact surface,
21, 22...Water stop packing, 24...Koma body, 2
4a...Pedestal part, 24b...Packing material, 25...
...Supporting metal fitting, 26...Elongated hole, 27...Keeping metal fitting, 29...Spring receiving plate, 30...Bolt,
31...Coil spring.

Claims (1)

[Scope of utility model registration request] It has a box whose top surface and the surface on the side to be attached to the steel sheet pile quay are open, and a water-stop seal is interposed between the quay wall contact surface of the box and the steel sheet pile quay surface. In the work box for steel sheet pile quay, which is attached to the sheet pile quay and forms a dry space for work inside,
Work for a steel sheet pile quay, characterized in that a plurality of pieces fitting into the grooves of the steel sheet pile quay are supported on the quay wall contacting surface of the bottom plate portion of the box so as to be movable in the width direction of the grooves. Box.