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What to Do When a Ground Anchor Comes Loose (Part 3)
Hello, everyone. This is Enta. In this post, I’ll explain what to do if a ground anchor comes loose during tension work. Let’s say a ground anchor comes loose during tension work. Technically speaking, this is referred to as “adhesion failure.” Depending on which part of the anchor has lost its adhesion…
What to Do When a Ground Anchor Comes Loose (Part 2)
Hello, everyone. This is Enta. I’d like to write about what to do when a ground anchor comes loose, as happened the other day. No one ever teaches you how to handle a loose ground anchor—it’s something you learn only through experience. Basically, ground anchors are a critical structural component…
How to Handle a Loose Ground Anchor: It Takes Experience | Real-Life Examples
Hello, everyone. This is Enta. With the humidity and heat of the rainy season, are you all okay—no heatstroke? I heard that one of our employees, Mr. K, has already started showing signs of heatstroke for the first time this year. This humidity is crazy! Everyone, please make sure to stay well-hydrated. And be sure to bring a change of clothes to the job site…
Special Drilling Methods in Ground Anchor Construction (Installation of Mouth Pipes)
Hello, everyone. This is Enta. Special Drilling Methods for Ground Anchor Construction (Part 1) Continuing from last time, this post covers special drilling methods. Lately, I’ve been forgetting about articles I planned to continue (like “Part 2,” “Part 3,” and so on) a few days later, so I’d appreciate it if you could point that out to me…
Let's Inflate the Packer | Proof-of-Concept Experiment
Hello, everyone. This is Enta. I’m sure you often use packers in ground anchor construction. I don’t think you’ve seen a packer inflated very often. Even if you have, it’s probably only been at the end of the free length. Take a look at what it actually looks like…
Ground Anchor Construction: On-Site Notes (Part 1: Soil Cover)
Hello, everyone. This is Enta. The other day, a general contractor asked me, “How much soil cover is considered problematic for ground anchors?” I thought it was 3 meters, if I remember correctly… but when I looked it up, it turned out to be 5 meters. I really tend to forget things these days. Design and construction of ground anchor works…
First-Time Ground Anchor Installation | A Guide for Beginners
Hello, everyone. This is Enta. The other day, I had a chance to talk with someone. During our conversation, the powerful statement, “Our chairman was the first person in Japan to install ground anchors!” came up!! The chairman wasn’t there at the time, but…
The Thrill of Drilling Operations | What Makes Being an Operator Rewarding
Hello, everyone. This is Enta. We’re drilling using drill bits, right? Here’s what a brand-new one looks like. It’s a standard ring bit. We want to use this for as long as possible, but we also want to drill as quickly as possible. So we tend to apply quite a bit of pressure while drilling…
Tips for Measuring Drill Hole Length | On-Site Techniques
Hello, everyone. This is Enta. When measuring the drilling depth during drilling, you usually hold the pin pole in one hand and use a staff and tape measure to take measurements, right? I think it’s pretty difficult because the measurements tend to be off. So, please try doing it as shown in the photo. You can probably see that the pin pole is floating, but…



