Hello, everyone. This is Enta. Are any of you already back home for the Obon holiday? I don’t really have a home in Kagoshima to go back to, so I almost never go back—how about you guys? lol I imagine you’ll be completely exhausted by the time you get there, so please be careful on your way home. Also, …

Hello, everyone. This is Enta. I wrote a series on construction errors involving ground anchors on this blog back in 2018, and I rewrote it again in 2023, but to be honest, both versions ended up feeling a bit half-baked, lol. This time, when I reread my old posts, I thought, “Wait, this…”

Hello, everyone. This is Enta. Someone asked me, “Why are you drilling 3.1 meters when the design calls for 3 meters?” That’s a good question. I used to wonder the same thing myself, lol. But anyway, today I’d like to talk about “over-drilling” during the drilling process. When drilling for rebar installation (rock bolt installation) or anchor installation…

Hello, everyone. This is Enta. It’s been really hot every day, huh? lol The job site has been like a steam room since this morning, and it feels like my stamina’s going to wear out first. Let’s make sure to stay hydrated and get enough salt! ^^ But anyway, this time I’d like to talk about “the rust-preventive oil used in the heads of rebar insertion tools—is it really…”

Hello, everyone. This is Enta. When managing stress in ground anchors, we look at the load and the amount of elongation, right? It’s not enough to just look at the load cell and say, “Okay, that’s good.” We also check how much the prestressed steel strands have elongated and whether there are any unusual deviations from the design elongation. Basically, this is important, isn’t it? Qualification tests and…