JPH0533552Y2 - - 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) Generally, steel sheet pile quays are constructed using U
There is one in which shaped steel sheet piles 1, 1... are connected in an alternating manner, or, as shown in No. 9 B, in which Z-shaped steel sheet piles 2, 2... are connected in an alternating manner. The shape is formed by separating the

Conventionally, as a work box for carrying out work with the front surface of the steel sheet pile quay A dry, a box 4 with an open top surface and a side surface facing the steel sheet pile is used, as shown in FIG. 10, and the bottom plate of the box 4 is 5 Protrusions 6, 6, etc. that fit into the grooves 3 are provided on the front edge according to the width and spacing of the grooves 3, and are attached to the steel sheet pile quay A to drain the water inside and form a dry space. That's what I do.

(Problem to be solved by the invention) In such a conventional steel sheet pile wharf work box, when the steel sheet pile wharf A is curved, the shape of the front edge of the bottom plate 5 of the box is adjusted to match the curvature. This posed the problem of requiring frequent work such as forming a special box bottom plate to match the curvature of the work site and assembling it to the box.

In view of these conventional problems, the present invention has been developed to provide a steel sheet pile wharf that can be used on steel sheet pile wharves with various curvatures using the same equipment even when the degree of curvature changes when working on the curved part of a steel sheet pile wharf. The purpose is to provide work boxes for quays.

(Means for Solving the Problems) In order to achieve the above-mentioned purpose, 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 the side surface of the box that contacts the quay wall is open. In the work box for a steel sheet pile quay, which is attached to the steel sheet pile quay with a water-stop gasket interposed between the steel sheet pile quay and the steel sheet pile quay surface to form a dry space for work inside, the box contacts the quay wall. A bellows-shaped elastic waterproof sheet is interposed between the peripheral edge of the surface side and the water-stopping gasket while maintaining a watertight state, and the gasket is separated from the peripheral edge of the box. It is equipped with an elastic material that biases in the direction.

(Function) When using this work box, fill in the groove of the quay wall at the position corresponding to the water-stop gasket with a material such as a water-stop piece to fill the groove in a water-tight state in advance. Press the front of the water seal. At this time, the packing is deformed into a shape corresponding to the curvature of the quay wall against the elastic material on the back surface, and is pressed against the quay surface by the elastic force of the elastic material.

(Example) Next, an example of implementing the present invention will be described with reference to FIGS. 1 to 8.

In the figure, reference numeral 11 indicates a work box for steel sheet pile quay surface 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 A 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.

One side edge of a waterproof sheet 19 is watertightly connected to the open side edge of the bottom plate 18 of the work box 11 and the vertically oriented open side edges of both side walls 13, 13 connected thereto in a U-shape arrangement. ing.

The other side edge of this waterproof sheet 19 is connected to the back surface of a waterproof gasket 20 for joining with the quay wall A.

The packing 20 has a U-shape that is substantially the same as the opening part on the quay side of the box 12, and the vertical parts 20a, 20a corresponding to the side walls 13, 13 are linearly parallel to each other, but the bottom plate 18 Horizontal part 2 corresponding to
0b is formed in an arc shape, and the center part of the arc shape is directly fixed to the edge of the bottom plate 18, and the fan-shaped seat bottom parts 19a, 19a are watertightly arranged between the back of the gasket on both left and right sides and the front surface of the bottom plate. It is mediated. Moreover, between the front edges of the side walls 13, 13 of the box 12 and the vertical parts 20a, 20a of the packing 20, there is a seat side part 19b which is made upright by connecting the seat bottom parts 19a, 19a described above. , 19b are interposed watertightly.

The waterproof sheet 19 has sheet bottom portions 19a, 19
Reinforcing members 21 and 22 are fixed to the sheet side portions 19b and 19b, respectively. Seat bottom 19
As shown in FIG. 3, the reinforcing members 21, 21, . are rotatably connected by. Further, the lower end of the reinforcing material 22 on the side of the seat side 19b is welded to the tip L-shaped arrangement of the reinforcing material 21 on the side of the seat bottom 19a.
It extends upward along the inside of 9b. A seat fixing plate 24 applied to the outside of the seat side part 19b is fixed to this reinforcing member 22 with fixing bolts 24a, and the seat side part 19b is sandwiched between the reinforcing member 22 and the seat fixing plate 24. There is.

On the back side of the packing 20, there is an elastic material 2 that urges the side of the seat in a direction away from the case 12.
5, 25... are provided.

These elastic materials 25, 25... are adjacent reinforcing materials 2
1 and 21 and between 22 and 22, respectively, and urge the bellows of the water stop sheet 19 in a direction to open and extend it. The elastic member 25 may be a cylindrical rubber cushion 25a as shown in FIG. 5, or a coil spring 25b as shown in FIG.

When installing the work box 11 configured in this manner on the curved steel sheet pile quay A, as shown in FIG. Water stop piece 2 that can be expanded and contracted
6, 26..., float the work box 11 on the water, and float each float tank 14a, 14b, 14.
Adjust the buoyancy of c using the water supply to float to the desired height. After that, when applying the work box 11 to the quay A so that the packing 20 is pressed against the quay A, tension material 27 is stretched between the quay A and the box 12 as shown in FIG. Manual lever block 28
The tensile member 27 is pulled together and the box 12 is pressed against the quay 1. By this, Patsukin 2
By compressing the elastic members 25, 25, .

After that, the water in the work box 11 is drained to form a dry work space inside.

When used on a quay wall that is not curved, the water stop sheet 19 is removed, a packing 20 is attached to the edge of the box 12, and a dry space is formed by pressing against the quay wall in the same manner as described above.

(Effects of the invention) The present invention is constructed as described above, and a bellows-shaped elastic waterproof sheet is interposed between the peripheral edge of the box on the quay wall contact side and the water-stop packing, and an elastic material is used. By forcing the packing in the extrusion direction, the box could be pressed against a curved quay wall, and the shape would correspond to the curved surface of the quay wall, and it would fit tightly. It can be used as is on quay walls with different curvatures, and by removing the waterproof sheet, it can also be used on flat quay walls, making it compatible with a variety of steel sheet pile quay walls. This made it possible to do the work extremely economically.

[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 a cross-sectional plan view enlarging the left half, and Fig. 3 is a partially enlarged bottom view showing the state in which one end of the reinforcing member is attached. , Fig. 4 is a partially enlarged cross-sectional view showing the attached state of the other end, and Figs. 5 and 6 each show separate examples of elastic materials. In each figure, A is a plan view of the normal state, and B is a compressed state. Fig. 7 is a perspective view showing the installed state of the work box, Fig. 8 is an enlarged bottom view of the same part, Fig. 9 A and B are cross-sectional views showing separate steel sheet pile quays, Fig. 10 The figure is a perspective view of a conventional work box. A...Wharf, 1, 2...Steel sheet pile, 3...Ditch,
11... Work box, 12... Box, 19... Waterproof sheet, 20... Packing, 21, 22... Reinforcement material, 25... Elastic material.

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 contacting side of the box and the steel sheet pile quay surface. In a work box for a steel sheet pile quay that is attached to a sheet pile quay and forms a dry space for work inside, a bellows-shaped work box is provided between the peripheral edge of the box on the quay contact surface side and the water stopper. A work box for a steel sheet pile quay, characterized in that a stretchable waterproof sheet is interposed to maintain a watertight state, and an elastic member is provided to bias the packing in a direction away from the peripheral edge of the box. .