Drilling Location
2021/05/18

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…

Drilling Status
2021/05/07

Special Drilling Methods in Ground Anchor Construction | Technical Applications

Hello, everyone. This is Enta. Have you seen this before? If you specialize in mountain engineering, you probably don’t see it very often, but it’s used quite a bit in urban civil engineering for slope stabilization anchors, and it’s also used quite a bit in marine civil engineering. I’ve only used this once myself. This will be my second time…

Experimentation is important
2021/04/30

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
2021/04/27

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…

Great Stuff
2021/04/26

Things That Are Handy to Have, But Make You Go, “Huh!?” When They’re Missing | On-Site Tools

Hello, everyone. This is Enta. I’ve been making a lot of trumpet-shaped tubes lately, lol. What this is used for is to direct the flow forward—rather than backward—during bore cleaning. This is it. Since directing the flow backward causes all sorts of problems, we try to direct it forward as much as possible. I’ve been getting requests for this kind of product, so lately I’ve been…

What do you think?
2021/03/28

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…

Anchor Drilling Status
2021/03/21

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…

Measuring Drilled Hole Length
2021/03/18

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…

Digital Pressure Gauge
2021/03/11

I was able to get the digital display working on the tension machine | DIY Equipment

Hello, everyone. It's Enta. What do you think of this? It's super cool!! No, wait—it was actually super easy to use!!! It's bare right now, so I'm thinking of adding a cover (the display is hard to see during the day). The photos are also absolutely fantastic, and the atmosphere of the photos…