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How to Conduct Suitability Tests in Ground Anchor Construction (Part 2)
Hello, everyone. This is Enta. Today, I went to the Iwakura Cherry Blossom Festival again to help out the Chamber of Commerce—sort of? lol. Well, it’s still pretty much a “bud festival” at this point—only about 20% in bloom, so it’s not much to look at yet. I think the cherry blossoms will be at their peak sometime in the middle of this week or later. But the weather at the end of the week is… Anyway, moving on &n…
Elastic Displacement in Ground Anchor Suitability Tests | When Values Fall Outside the Upper and Lower Limits
Hello, everyone. It’s Enta here. I don’t have any actual work to do, but I’m doing some machine maintenance at the office lol. There aren’t many times throughout the year when I get to take machines apart like this. So, I’m taking full advantage of the opportunity to take them apart, replace the various gaskets, and check for oil leaks…
A Young Drilling Machine Operator's Growth Journal | Second Drilling Site
Hello, everyone. This is Enta. The other day, I went out to a job site. One of our employees took a day off for personal reasons, so I went in as a replacement. I’m in charge of the plant (a ground anchor site). A young employee is working on his second job site as an operator. As I watched him drill, I thought, “He’s actually pretty good at this…”
Safe Stripping of Prestressed Steel Strand | Using an Unbonded Sheath Cutter
Hello, everyone. This is Enta. Is the cold snap finally over? Anyway, we’re back to business as usual lol. By the way, how do you strip the insulation off PC steel wire? I’m guessing most people just use a utility knife. It’s actually pretty dangerous, isn’t it? It’s especially difficult for beginners. I want to cut…
Rotary Percussion Cam Follower Maintenance | Fixing Play
Hello, everyone. This is Enta. As the end of the year approaches, things are getting busier and more hectic. Please be extra careful at work. But enough of that... The other day, a large rotary percussion machine was returned to us. When you shake the hammer section, it goes “ga…”
Anchor Installation Process: From Order Receipt to Start of Drilling
Hello, everyone. This is Enta. I’ve been in Yokohama and Tokyo for the past few days. Big cities really are amazing, lol. What I mean is, there are just so many people. It makes me wonder, “Are there really fewer people these days??” If there were just a few people walking around here, the slope engineers and anchor installers…
How to Calculate Estimated Costs | Daily Rock Bolt Installation Volume and Cost
Hello, everyone. This is Enta. The other day, I heard from the anchor shop that they wanted to start providing more accurate estimates. As expected, when you transition from being an independent craftsman to an organized business, these kinds of issues tend to come up first. If you can’t provide accurate estimates, you’ll just keep getting taken advantage of with low-ball offers…
Weather Resistance of Polyethylene and Carbon Black | The Truth About 100-Year Durability
Hello, everyone. This is Enta. Continuing from last time, here’s the leveling mat used on the underside of the load-bearing plate. The truth about its weather resistance has finally come to light! lol Claims that it’s “weather-resistant” have hardly been verified at all! However, as for cross-linked polyethylene, it is weather-resistant…
Perkatite-Processed Spacers | Eco-Prototype Trial at a Greening Site
Hello, everyone. This is Enta. I’ve got a project that requires some creativity, lol. At a landscaping site, there’s this eco-friendly, new, and interesting—or maybe just a little unusual—spacer. But I can’t really promote it widely just yet. It was well-received by the slope construction crew, lol. So, anyway… Our current…



