The Heads of Existing Anchors Are Abnormal (Part 2) | Root Cause Analysis
Hello, everyone. This is Enta. Here’s the answer from the other day (lol)—the one with the weird-looking head treatment. Actually, the metal plates and wires attached to this anchor head are there to prevent accidents in case the PC steel strand breaks and flies off! They’re covering it up. The ground anchored into the existing formwork…
The Head of an Existing Anchor Is Abnormal (Part 1) | Inspection Case Study
Hello, everyone. This is Enta. The other day at a job site, I found an existing anchor that had ended up looking like this. The anchor had been set into the formwork. Even though I may not look like it (though I have no idea what I actually look like, lol), I’m a pro, so I figured it out right away. That said, this kind of thing…
Tips for Temporary Anchors (Earth Scaffolding and Drilling Locations) | On-Site Decision-Making
Hello, everyone. This is Enta. I get asked a lot about the height of earth-retaining walls using temporary anchors. I really do get asked that a lot! I wonder if few people know the answer, or if they just forget it right away? lol I’m going to explain the height of earth-retaining walls using temporary anchors. First, what does a core drill do…
Considering the Angle of Stress (Part 2) | Decisions on Construction Methods
Hello, everyone. This is Enta. This is a continuation of my previous post. Today, I’ll discuss how to handle situations where the composite angle exceeds 20 degrees. Situations like this are really a pain, aren’t they? But since we have no choice but to do it, I’ll give it a try—and see if I can find the simplest method possible. For now, …
What should I do about the crack in the zabuton frame?
Hello, everyone. This is Enta. Are you installing zabuton frames? What do you think when you hear, “The zabuton frame has cracked, and the load-bearing plate has settled in”? Do you think it’s a problem if cracks appear? Or, on the contrary, do you think it’s okay as long as the load-bearing plate has settled in? Actually…
Considering Tension Angles (Part 1) | Anchor Design
Hello, everyone. This is Enta. With ground anchor construction, there are different installation angles, right? For example, if the design drilling angle is 35 degrees and the slope angle on the load-bearing plate side is 55 degrees—which adds up to 90 degrees—then setting the anchor during tensioning is straightforward. The basic principle for tensioning is to pull straight and anchor straight. (Strictly speaking…
Residual Tensile Strength of PC Steel Strands in Non-Destructive Testing | Long-Term Monitoring
Hello, everyone. This is Enta. The other day, I was checking my blog subscriber count and was surprised to see that it had surpassed 1,500!! Thank you so much. Lately, even the people at the government agency that commissions my work have told me they’re reading my blog, so I’m feeling a lot of pressure as I update it. I’m truly grateful…
Our Commitment to Headwork | Anchor Finish
Hello, everyone. This is Enta. The other day, I made a small mistake while installing ground anchors. It was just a minor thing, but it really bothered me, so I fixed it lol. Here it is. It’s not like I thought, “Is this okay?” but it bothered me, so I fixed it…
The Ambiance of Fiber-Reinforced Cement Milk
Hello, everyone. This is Enta. In my recent article, I mentioned that even if I receive inquiries about flat caps... For more details, please contact either KF Co., Ltd. or the Disaster Response New Technology Research Association. KF Co., Ltd. Disaster Response New Technology Research Association But anyway, moving on to the performance of cement slurry containing fiber...