JPH026103Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field to which the invention pertains] The present invention relates to a partition plate at a joint when constructing a continuous wall (continuous underground wall) constructed as foundation work.

[Prior art and its problems]

As is well known, such continuous walls are constructed by constructing concrete panels with reinforcing bar cages inside them in excavated holes and connecting them one after another, but there are various methods of joining these concrete panels. do. As an example, as shown in FIG. 2, a vertical steel partition plate 32 is installed at the end of a reinforcing bar basket 31 constituting the preceding panel, and a reinforcing bar 33 for a joint is protruded from the opposite end of this plate 32. ing. The partition plate 32 has a width close to the width of the excavated hole 34, and serves to prevent outflow during concrete pouring. In order to ensure completeness, rubber tubes 35 and rubber sheets 36 are often attached to both ends.
In the figure, 37 is an interlocking plate, 31'
indicates the rebar cage for the trailing panel.

In the example shown in FIG. 2, the end of the partition plate 32 is bent into a U-shape, but if the cross section is H-shaped and the flange is used as the end, it becomes a wide end to prevent leakage. It will also be more effective. However, the concrete does not completely wrap around the outer surface of the flange portion, resulting in unattached areas, which are susceptible to corrosion such as rust.

[Purpose of invention]

The purpose of the present invention is to eliminate the disadvantages of the conventional example,
The edges are wide and have good adhesion over the entire surface, so it can fully prevent concrete from flowing out.
Moreover, it is an object of the present invention to provide a partition plate for a continuous wall joint part that has no exposed part to the outside and can be subjected to rust prevention treatment.

[Key points of the idea]

However, according to the present invention, the purpose of the lever is to provide a steel partition plate disposed at the end of the reinforcing bar cage, the plate having an H-shaped cross section and having reinforcing bars for joints protruding from the web portion, and This is achieved by extending the flange part to the outside of the reinforcing bar cage so as to surround it, surrounding the outer surface of the flange part with a thin rubber bag, and filling the inside with a filler material that is a mixture of rubber emulsion and mortar.

[Example of idea]

Hereinafter, embodiments of the partition plate of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a perspective view showing an example of use of the partition plate of the present invention, in which reference numeral 5 indicates a guide wall formed in advance in the excavated hole 4, and 1 indicates a reinforcing bar cage.

A steel partition plate 2 is installed at the end of the reinforcing bar cage 1, and this has an H-shaped cross section, with its flange portion 2a extending outward from the side of the reinforcing bar cage 1, and opposite to the web portion 2b. From the side, reinforcing bar 3 for the joint
was installed. The flange portion 2a extends so as to surround the reinforcing bar 3 for the joint.

Furthermore, this partition plate 2 has a flange portion 2a.
The outer surface of the bag is surrounded by a thin rubber bag 6 with a slight gap. In addition, in order to attach this rubber bag 6 to the plate 2, the end of the rubber bag 6 should be fixed to the inside of the flange part 2a with rivets or adhesive, and the lower end of the rubber bag 6 should be closed. .

In the figure, 7 is a mortar injection pipe, which is provided in advance along the inside of the flange portion 2a, for example, and is communicated with a mortar discharge port 8 formed at the lower part of the flange portion 2a.

Further, numeral 9 in the figure is a locking plate, the end of which is bent at an obtuse angle to form a lug 9a, to which a rubber piece 10 for abutting is attached. This plate 9 prevents earth and sand from entering into the reinforcing bars 3 for the joint during excavation.

In this way, the reinforcing bar cage 1 with the partition plate 2 etc. installed in advance is built into the excavated hole 4, and the injection pipe 7 is used to inject rubber emulsion and mortar between the flange portion 2a of the plate 2 and the rubber bag 6. A filling material (not shown) mixed with the above is packed. Then, the rubber bag 6 expands due to the injection pressure and tightly adheres to the hole wall.

The ends of the reinforcing bar basket 1 are now completely partitioned, and concrete will not flow out even when poured.

Next, a hole 4' for the trailing panel is created with a locking plate 9 interposed therebetween, a reinforcing bar cage for the trailing panel is erected, its ends are wrapped with the reinforcing bars 3 for the joint, and concrete is poured. Set up

Since the outside of the flange part of the partition plate 2 is completely covered with this filling material and the other parts are completely covered with poured concrete, it does not come into direct contact with earth and sand or groundwater, and there is no fear of rust.

[Effect of idea]

As described above, the partition plate of the continuous wall joint of the present invention has a wide flange at the end of the plate, so that the wide joint to the hole wall can be formed while surrounding the joint with the end of the reinforcing bar cage. Moreover, since the rubber bag on the outer surface of the flange that secures this joint is fully crimped against the hole wall, a complete sealing effect can be obtained, and the plate flange part is not exposed to the outside. At the same time, anti-corrosion treatment can be implemented to prevent this from occurring.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an example of use of the partition plate of the continuous wall joint of the present invention, and FIG. 2 is a plan view showing an example of a conventional partition plate. 1, 31, 31'...Reinforcement cage, 2,32...Partition plate, 2a...Flange part, 2b...Web part, 3,33...Reinforcing bar for joint, 4,4'...
Drilling hole, 5... Guide wall, 6... Rubber bag,
7...Pipe for mortar injection, 8...Mortar discharge port, 9...Rocking plate, 9a...Ear portion, 10...Rubber piece, 35...Rubber tube, 3
6...Rubber sheet, 37...Interlocking plate.

Claims (1)

[Scope of utility model registration request] A steel partition plate installed at the end of a reinforcing bar cage has an H-shaped cross section and has reinforcing bars for joints protruding from the web part, and a flange part is attached to the outside of the reinforcing bar cage so as to surround the protruding reinforcing bars. shall be extended;
Surrounding the outer surface of the flange portion with a thin rubber bag,
A partition plate for a continuous wall joint that is filled with a filler that is a mixture of rubber emulsion and mortar.