JP2001226945A - Structure of flash boards and structure of water sealed tank - Google Patents

Abstract

PROBLEM TO BE SOLVED: To economically cut off a waterway in accordance with the size and shape of a hermetically sealed space variously required in the waterway. SOLUTION: In a structure of a flash board to cut off a water way, the flash board is horizontally divided into a plurality of boards and adjacent boards 1 are connected to be mutually rotatable.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a corner drop structure for stopping (sealing) water in a water channel and a water sealing tank structure.

[0002]

2. Description of the Related Art In the case of exchanging gates or installing new installations in sewage canals, water canals, irrigation canals, etc., normally, a waterless construction method is generally used in which construction is performed without stopping water in the entire canals. Is done. As a non-stop construction method, a method of forming a water stop wall using a temporary water stop plate (hereinafter referred to as a corner cut) is generally used. For example, as shown in FIG. By stacking in multiple stages along the width direction, the waterway is stopped and the gate is constructed.

As shown in FIG. 7, when the gate G is located above the water channel, a water sealing tank 32 is used. The water-sealing tank 32 includes a corner drop 34 of a bottom portion 33 serving as a foothold for an operator, a drop 36 of a front portion 35 rising from the bottom portion 33, and a drop 38 of a pair of left and right side portions 37. It is attached to the wall Wa on which the G is mounted so as to surround the gate G, and seals around the gate G. The water sealing tank 32 is buried in the water in an assembled state and fixed to the wall surface Wa by bolting or the like, and the inside of the water is discharged to the upstream side of the water channel by the submersible pump 39, and then the construction work of the gate G is performed. .

[0004]

However, the above-mentioned conventional waterless method has the following problems. First, in the former method of stacking the angle drop 31 in a plurality of stages,
The point is that it is necessary to manufacture a corner drop according to the width of each channel. The corner cut is a member that can be used repeatedly, and if it is newly manufactured for each water channel with a different width, it will be costly and the contractor will have to increase the storage space for the corner cut when not in use. Absent.

In the latter case of the water sealing tank 32, the construction work is complicated depending on the size and type of the gate G and the work is performed by a large number of people. If the channel width is limited, there may be a case where it is desired to increase the scaffold dimension in the longitudinal direction of the channel, that is, in the direction orthogonal to the wall surface Wa. Conventionally, in such a case, the corner drop 34 of the bottom portion 33 and the side portion 37 are provided.
Is newly manufactured, which is also costly, and there is a problem that the space for accommodating the corner drop to be stored when not in use is increased.

SUMMARY OF THE INVENTION An object of the present invention is to provide an economical solution for stopping water in a waterway in accordance with various desired sizes and shapes of enclosed spaces. And a water sealing tank.

[0007]

Means for Solving the Problems As a means for solving the problems, the present invention is directed to a structure in which a corner cut is divided into a plurality of parts in the horizontal direction, and adjacent corner cuts are rotatably connected to each other. It has a corner drop structure.

[0008] Further, the corners of the bottom portion serving as a scaffold for the worker, the front portion rising from the bottom portion, and the pair of left and right side portions are cut off. In a water sealing tank attached to surround the construction object and seal water around the construction object, with respect to a direction perpendicular to the wall surface on which the construction object is installed, the corner of the bottom portion is cut off and the pair of left and right sides The structure of the water-sealing tank is such that the corner drop of the part can be divided.

[0009]

Embodiments of the present invention will be described with reference to the drawings. 1 to 3 are explanatory views related to a corner drop structure. FIG. 1 is a plan view showing a corner drop structure installed in a water channel, FIG. 2 is a front view thereof, and FIG. 3 is an exploded perspective view thereof.

[0010] The corner drop 1 is installed, for example, upstream of a gate (not shown) to be constructed, and is attached between left and right side walls W constituting a water channel. The angle drop 1 has a substantially rectangular parallelepiped shape (may be a rectangular plate shape), and is a member made of synthetic resin, metal, wood, or a composite material thereof. As can be seen from FIGS. In the horizontal direction, that is, in the horizontal direction, it is provided divided into a plurality,
Adjacent corner cuts 1 are connected to each other so as to be rotatable in the horizontal direction, that is, rotatably around the vertical axis. The drawing shows a case where three corner cuts 1 are provided in the horizontal direction, and a set of these three corner cuts 1 are stacked in four stages in the vertical direction.

The corner drop 1 of this embodiment has a structure in which left and right edges are connected to each other via a hinge mechanism.
On one side of the left and right edges, a hinge portion 1a having a semicircular end in a plan view and having a shaft hole 1c penetrating in the up-down direction is protruded, and the other end is similarly flat on the other side. A shaft hole 1c which has a semicircular shape when viewed from the top and which penetrates in the up-down direction is formed, and a pair of hinge portions 1b, 1b which sandwich the hinge portion 1a in the up-down direction are protruded. As a result, the connection between the corner holes 1 is made by positioning the hinge portion 1a between the hinge portions 1b and 1b so that the shaft holes 1c coincide with each other, and inserting the pin 2 into the shaft hole 1c. The pins 1 are rotatable relative to each other about the pin 2.
Therefore, the angle drop 1 is connected to each other by inserting and removing the pin 2.
Separation is possible. The pin 2 may be configured such that the length thereof is substantially the same as the height of the single corner drop 1 and a plurality of pins 2 are inserted into each step. 1 may be configured to be inserted so as to be connected.

In the mounting mode of the corner cut 1 to the side wall W of the water channel, for example, when the width of the water channel is large and the number of the corner cuts 1 in the lateral direction is large, it may be fixedly mounted. If the number of angle drop 1 is small,
The angle drop 1 is also rotatably attached to the side wall W. As a specific mounting method, a hinge mechanism similar to the above-described method of connecting the corner cuts 1 can be used. That is,
In the surface of the mounting plate 3 which is bolted to the side wall W, a shaft hole 3b having a semicircular shape in a plan view and a vertically penetrating hole is drilled in a plan view so as to correspond to the shape of the hinge portion 1a or 1b of the corner drop 1. An angled drop 1 is rotatably attached to the side wall W by forming a hinge portion 3a provided and inserting the pin 2 into the shaft holes 1c and 3b. Since a large load is applied to the hinge portion 3a, it is necessary to provide a reinforcing member or the like and firmly attach the hinge portion 3a to the mounting plate 3.

The gap formed at the joint between the corner cuts 1 and the gap formed at the joint between the corner cut 1 and the side wall W are desirably watertight by using a wood plate, a steel plate, a rubber plate or the like. In the present embodiment, a rubber plate is used, and the hinge portions 1a and 1b of the corner drop 1 are used.
A seal plate 4 is attached to the peripheral surface of the hinge portion 3a on the side of the side wall W, and each hinge portion 1a, 1
A disc-shaped seal plate 5 having a shaft hole 5a for penetrating the pin 2 at the center is interposed on a surface where the shafts b and 3a face each other, that is, a surface where the shaft holes 1c and 3b overlap. As described above, since the tips of the hinge portions 1a, 1b, 3a have a semicircular shape in plan view, as can be seen from FIG.
Regardless of the angle of rotation of the chamfer 1, the sealing plate 4 formed in a peripheral shape at the tip is in a state of pressing against the left and right side portions of the adjacent chamfer 1, or the mounting plate 3
And is in a state of being pressed against the surface of the substrate, and always exhibits a watertight function. Reference numeral 6 denotes a seal plate for making the joint between the corner cuts 1 in the vertical direction watertight.

When burying the angle drop 1 in a waterway,
The angle cuts 1 are assembled on the ground in advance, and underwater,
It is efficient if only the connection between the corner drop 1 at the left and right end and the mounting plate 3 is made. In addition, when the corner drop 1 is installed as a whole bent in plan view, it may be installed so as to be bent toward the downstream side as shown in FIG. 1 from the viewpoint of stability against water pressure. Furthermore, if a beam member (not shown) for reinforcement and support is placed between the hinge portion between the corner cuts 1 and the hinge portion between the side wall W and the corner drop 1, the position of the corner drop is obtained. Will be more stable. In addition,
If there is a slight inundation even after the above-mentioned watertight treatment, a submersible pump (not shown) is installed on the downstream side of the corner drop 1 and discharged to the upstream side through the upper part of the corner drop 1 to the gate or the like. The construction work may be performed.

[0015] As described above, in the horizontal direction, the angle cuts are divided into a plurality of parts and the adjacent angle cuts are rotatably connected to each other. It is no longer necessary to manufacture the same, and it is possible to cope with waterways of any width by increasing or decreasing the number in the horizontal direction (horizontal direction) only by using an existing angle drop prepared in advance. Therefore, it is possible to construct an economical and resource-saving non-water suspension method.

Next, the structure of the water sealing tank will be described with reference to FIGS. FIG. 4 is a plan view showing the structure of a water sealing tank installed in a water channel, and FIG. 5 is a sectional side view of the same.
The water sealing tank 11 includes a corner drop 13 of a bottom portion 12 serving as a scaffold for an operator, a corner drop 15 of a front portion 14 rising from the bottom portion 12 in the present embodiment along the width direction of the water channel, and a bottom portion 1.
2 to 4 in the present embodiment, the gate G comprises a pair of left and right side surface portions 16 which rise along the longitudinal direction of the water channel.
Is attached to the wall surface Wa on which the construction object is installed, so as to surround the construction object, and seals water around the construction object. The direction orthogonal to the wall surface Wa on which the construction object is The longitudinal direction of the channel)
2 angle drop 13 and angle drop 17 of a pair of left and right side portions 16
Are configured to be divisible.

A U-shaped mounting plate 18 is fixed to the wall Wa by bolting or the like so as to be located on the left and right sides and below the gate G. The water sealing tank 11 is attached to the mounting plate 18 by a bracket. (Not shown) or the like, and is attached by bolting or the like. FIGS. 4 and 5 show a case in which the corner cut 13 of the bottom part 12 and the corner cut 17 of the side face part 16 are each divided into two parts, which are connected via a watertight seal member 19. The joint portions between the corner cuts 13 and the corner cuts 17 are connected to the connecting members (indicated by phantom lines 20, 2) from the inside or outside of the sealing tank 11, for example.
1) and the like may be connected and fixed by applying bolts or the like, and a reinforcing member or the like may be attached as necessary.

As described above, if a structure is provided in which the corner cut of the bottom portion and the corner cut of the side portion are provided separately, it is not necessary to newly manufacture the corner cut, and only the existing corner cut prepared in advance is used. By increasing or decreasing the number, it is possible to change the depth dimension of the water sealing tank according to the gates of various sizes, and it is possible to flexibly cope with securing a work space. Therefore, it is possible to construct an economical and resource-saving non-water suspension method.

As described above, the preferred embodiments of the corner dropping structure and the structure of the water sealing tank according to the present invention have been described. However, the shapes and mounting positions of the components are not limited to those described in the drawings. However, the design can be appropriately changed.

[0020]

According to the present invention, the following effects can be obtained. (1) In the horizontal direction, if a corner cut is provided by dividing it into a plurality and the adjacent corner cuts are connected rotatably to each other, a new corner cut is newly manufactured according to the width of the waterway. It is no longer necessary to do so, and by increasing or decreasing the number of horizontal (horizontal) holes only with the existing corner drop prepared in advance, the water stop function can be exhibited in waterways of all widths, economical and resource-saving A water method can be constructed. (2) If the structure of the water-sealing tank is provided by dividing the bottom corner and the side corner into a separate shape, it is not necessary to newly manufacture the corner cut, and the number of existing corner cuts is prepared only by using the existing corner cut. By increasing or decreasing the depth, it is possible to change the depth dimension of the water sealing tank according to the gates of various sizes, and it is possible to flexibly cope with securing a work space. Therefore, it is possible to construct an economical and resource-saving non-water suspension method.

[Brief description of the drawings]

FIG. 1 is a plan view showing a corner drop structure installed in a waterway.

FIG. 2 is a front view showing a structure of a corner drop installed in a waterway.

FIG. 3 is an exploded perspective view showing a corner drop structure installed in a water channel.

FIG. 4 is a plan view showing a structure of a water sealing tank installed in a water channel.

FIG. 5 is a side sectional view showing a structure of a water sealing tank installed in a water channel.

FIG. 6 is a front view showing a conventional angle drop structure.

FIG. 7 is a side sectional view showing the structure of a conventional water sealing tank.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Square drop 1a, 1b Hinge part 3a Hinge part 11 Water sealing tank 12 Bottom part 13, 15, 17 Square drop 14 Front part 16 Side part

Claims (2)

[Claims] 1. A corner drop structure for stopping water in a water channel,
A corner-dropping structure characterized in that a corner-drop is provided in a plurality of parts in the horizontal direction, and adjacent corner-drops are rotatably connected to each other. 2. A corner drop of a bottom portion serving as a scaffold for an operator;
It consists of a front corner rising from the bottom part and a pair of left and right side corners, and is attached to the wall on which the construction object is installed so as to surround the construction object and seals around the construction object. In the water sealing tank, in the direction orthogonal to the wall surface on which the object to be installed is installed, the water drop tank is characterized in that the angle drop of the bottom surface and the angle drop of the pair of left and right side parts can be divided. Structure.