Mistakes in Drilling | Common Mistakes on the Job Site
Hello, everyone. This is Enta. I had a little mishap the other day. I drove the anchor in too far, so I couldn’t pull it out. Basically, I drilled too deep—it was an over-drill. Since the drilling depth exceeded 60 meters, it’s impossible to retrieve the anchor. While performing the anchor installation…
"?" Articles | A Slope Engineer's Ramblings
Hello, everyone. This is Enta. When you’re installing rebar in concrete frames and the like, you cut out the voids, right? I’ve brought this up a few times before. VP is a no-go! VU might still work!! If possible, go for a void!! Please consider the time it takes to grind this down with an angle grinder…
The Difference Between Bolt Scales and Anchor Scales | How to Use Them Appropriately
Hello, everyone. This is Enta. The other day, while looking through some old management data, I came across this lol. It brings back memories. As for what this photo is of—it’s a measurement of alignment errors lol. This is how we used to do it back then. Mark the center of the frame with red on the corner washer. Corner washer…
Backfilling Behind the Load-Bearing Plate | How to Select Leveling Material
Hello, everyone. It’s Enta here. PC frames. You know what I’m talking about, right? I really hate these pressure plates, lol. I mean, the edges tend to chip, don’t they? Well, it’s still okay if they’re a bit thicker like the one in the photo, but the thinner, larger sizes…
Even Hard-to-Detect Alignment Errors Are Perfectly Corrected with This | Measurement Tool
Hello, everyone. This is Enta. I’m managing the construction using an anchor scale. Since the drill hole diameter is φ90 (nominal diameter), I’m using the arrow plate for 90. We’ll conduct a site inspection using a laser level to confirm the position. Please calculate the coordinate values. Once confirmed…
Methods and Principles for Measuring Drill Hole Length | On-Site Quality Control
Hello, everyone. This is Enta. Since quite a few people seem confused about the concept of drilling length, I’d like to explain it. Let’s start with the basics. Drilling length refers to the length of the drilled hole. So why is measuring drilling length so confusing? It’s because of the remaining length…
Becoming a Skilled Craftsman | Improving Your Skills as a Slope Construction Specialist
Hello, everyone. This is Enta. The other day, my inner rod broke, which was a real hassle. Apparently, I’d been drilling for two hours without even realizing it lol. That said, since I’ve only been doing this kind of drilling for about a month, and this was the first time one had broken, I’m actually glad it broke at this stage. As expected, trouble…
Doing It Twice Makes the Process Go More Smoothly | Practice and Reflection
Hello, everyone. This is Enta. The other day, I went to a site for an on-site inspection. The estimate had already been finalized, so it was my first time actually visiting the site (lol). Well, normally you’d inspect the site first and then draw up the estimate, but in my case, since I can read blueprints to some extent, I just used my imagination (lol). That said, I still found myself wondering things like, “Where’s the water supply?” or “Where’s the…
Silent Grout Mixer Chipping | Quiet Operation
Hello, everyone. It's Enta here. Since it's Sunday, I'm taking it easy today lol. I tried chipping away at a grout mixer. I filmed it lol. Since this was my first time using a GoPro to record a video, there's no sound lol. But this camera is super fun! From now on, I'll...