Hello, everyone.

This is Enta.

I wonder if entrance ceremonies are being held all over today?

Junior high schools in Iwakura City, Aichi Prefecture, held their entrance ceremonies.

It’s pretty rare to have an entrance ceremony with absolutely no cherry blossoms, isn’t it? (lol)

---

But that's beside the point.

Installation of Self-Drilling Rock Bolt Load-Bearing Plates on Small Lots

This is the installation of the pressure plate for the self-drilling rock bolt from the previous session.

Manual Drilling and Grout Injection for Self-Drilling Rock Bolts

That said, we filled the gaps as usual and installed the pressure plate.

We used Green Panels designed for concrete walls.

The most important challenge this time is crossing borders!

What Is Ekkyō?

We carried out the construction work with the utmost care.

From the very beginning, the design was intended to keep the head section within 5 cm.

This was achieved by using and modifying a product called a "UFO cap" during installation.

This is the standard product. This is what the final product is supposed to look like, but since cross-border shipping was an issue this time, we modified it.

 

I cut off the threaded section where the cap would normally be attached.

So I won't be using the cap. (Not that I ordered one, though.)

I'll apply a rust-preventive coating and take this to the job site.

Cutting off the nut portion.

Use a transit to check the boundary, mark the nut, and cut it with a sander. Make sure the nut is tightened securely beforehand.

*The protrusion of the rod itself is approximately 3.5 mm and has been set to the absolute minimum in advance.

Since it was processed on-site, it got a few scratches, but I managed to cut it anyway.

If left as is, there is a possibility that the nut could come loose due to vibration or other factors, so we will fill the gap with weather-resistant caulk.

I filled the gaps all over the head with caulk.

I don't think there's much chance of catching anything with this.

After that, thoroughly remove the rust-preventive spray from the treated areas with paint thinner, and you're done.

As for the boundary overlap, we were able to install it so that the closest point was plus or minus zero.

It fit perfectly within the boundaries without even 1 mm of overlap!

 

Our slope construction team has never done such a precise installation before! (lol)

This is also the first time I've worked with materials for head processing.

It also looks like it runs straight through.

I'm glad the general contractor was pleased as well.

All that's left is to put together a short report, and then we're done.

 

As is the case with public works projects,Boundaries are very importantSo let's be careful!

 

See you later.

 

*Since we handled the design, construction, and management for this project, we performed this type of head treatment.

In actual public works projects, whether the processing of end-cap materials is permitted depends on the outcome of discussions.

And,Since this is a particularly special case, the procedure is different from usual.