Hello, everyone.
This is Enta.
I heard the other day that quite a few anchors came loose, lol.
It seems the cause of the leak was the packer.
Is there a risk of it coming loose if you use a packer!?
Actually, I don't think that ever happens, lol (based on my experience).
However, it seems he missed it this time.
The reason was a mistake that tends to happen when using a packer.
I'm sure you know that you can't inject grout unless you remove the entire outer casing.
Therefore, we’ll perform the injection after removing all the casings.
The site where the casing was removed was an all-packer job, and the grouting took place after all the casing had been removed, but,
Apparently, they didn't do it right away but administered the entire dose at the end of the day.
This is the reason.
That’s a mistake packers tend to make more often than you’d think. (The rule of thumb is to use just one anchor! lol)
Depending on the soil type, in particular, there’s a high likelihood that it would weather away quickly; apparently, at that time, it was rock-hard mudstone.
Claystone is seriously dangerous!
Even with extremely hard mudstone, once you’ve drilled a hole in it, weathering begins right there!
Slaking begins the moment it comes into contact with water and air.
Please try touching the slime that was drilled out of the mudstone.
Doesn't it start to melt into little pieces?
With soil like that, you've got to inject it as quickly as possible lol
Well, basically, once the drilling is done, you start the injection right away!
This is the basics! Or rather, it's a must, lol.
Apparently, they pulled out all the loose anchors, re-installed them, and called it a day lol.
It just goes to show that even a small mistake can lead to something like this.
Saying "it's a little easier" just won't do.
A little comfort now leads to hell later
Let's do our best and make sure we do everything thoroughly and reliably ^^
See you later
Concerns Regarding the "Hori-oki" Method in Drilling for Ground Anchor Construction
