Are there drilling errors depending on the type of work or the drilling machine?
Hello, everyone. This is Enta. Last month, I had the opportunity to serve as a speaker at a seminar hosted by Shinken Shimbun. To put it simply, the entire focus of my seminar was “Draining Water from the Mountains!” The tricky part is how consultants can incorporate this into their designs and turn it into revenue, lol (Please do…
Basic Structure and Principles of Rebar Insertion — What Exactly Is Rebar Insertion, in a Nutshell!? —
Hello, everyone. This is Enta. In my last post, I wrote about the basic structure and principles of rebar insertion. Well, since it’s aimed at people who aren’t very familiar with the topic, pros can feel free to skip it lol. On construction sites, it’s sometimes called rebar insertion, rock bolts, bolts, or “soil nails” (in English-speaking countries). …
[Comparative Guide] Rebar Insertion vs. Ground Anchors vs. Retaining Piles (For Newcomers)
Hello, everyone. This is Enta. In this post, I’d like to compare the “Big Three” in slope stabilization. (It took me a whole hour just to draw this picture… lol) “Reinforcement Insertion,” “Ground An…,” and other methods you often hear about as countermeasures against slope disasters such as rockfalls and landslides…
Here's how to take the basic exam for rebar installers.
Hello, everyone. This is Enta. Have any of you ever taken the basic exam for rebar insertion workers? It’s pretty common for ground anchor workers, isn’t it? But there aren’t many exams for rebar insertion workers. Basically, they’re the same, but since there’s no free length, that’s where the ground…
Using different bits makes a huge difference in drilling speed (hand drilling)
Hello, everyone. This is Enta. What kind of bits do you use when operating a rock drill? Well, if you think about it, it’s usually either a cross bit or a carbide bit (flat), right? Cross bits are the most common. Another common type is the carbide bit. …
The Real Reason It Comes Out From the Outside of the Casing After Pressure Injection!
Hello, everyone. This is Enta. Are you doing pressure grouting? Well, I’ve always said that pressure grouting isn’t all that effective, but since the topic of “Why does it come out of the mouth?” came up, I thought I’d write about it. Drill the holes as usual, and for ground anchors or…
Drilling through clay and silt is very difficult.
Hello, everyone. This is Enta. Something new is starting again tomorrow! Stay tuned^^ Anyway, when I’m installing temporary anchors, I always get stuck in that sandy silt lol. Plus, it’s packed pretty tightly, so when I hit it with a hammer, the tip gets clogged. The most…
Using jigs designed specifically for construction management makes it easier to explain the process and helps me gain a deeper understanding of it myself.
Hello, everyone. This is Enta. When it comes to measuring placement errors in rebar installation, bolt scales have become the standard. Sometimes older supervisors joke, “Thanks to this thing, we have to keep track of everything now,” lol. I understand how they feel, but then what about before…
The head-processing components for rebar insertion tools are becoming items that are easily stolen.
Hello, everyone. This is Enta. I came across a photo like this the other day. At first glance, it looked like the nut was loose, but if you look closely, there are actually two nuts there, right? lol. Did someone put it back on because it had come loose? Plus, the top nut is completely rusted, so it’s clearly not plated. &…