Design Outputs Are Useless! Is There Any Point to the Work of Consultants Who Don’t Know the Field?
The Reality I Saw at a Certain Traffic Congestion Mitigation Construction Site I (Sekisan Shiroto) would like to express my gratitude for the many comments I received on the article I posted the other day (”How Do You Set the ”Daily Work Volume’ Used in Schedule Charts?”). I read through every single one, and I am truly grateful. …
Ground Anchor: Pack the Inside of the Undercap Tightly | Head Treatment
Hello, everyone. This is Enta. Are you adding the non-corrosive additive—the one you know from KTB ground anchors? Mix both ingredients together and give it a good shake. (The KTB specs say to mix it with a mixer for at least 3 minutes, lol.) It doesn’t really matter which one you add first. TRUSCO O…
Now Is the Time to Earn Bonus Points for Creativity on the Anchor Scale | Bonus Point Strategy
Hello, everyone. This is Enta. I’ve been really happy to see the general contractor at our site using the Anchor Scale lately! The Bolt Scale is already quite well known. However, the Anchor Scale isn’t very well known just yet…
Let's Try a Crack Experiment (Part 1) | Investigating the Cause
Hello, everyone. This is Enta. One of our employees made this for me the other day! Do you recognize it? This! Does it ring a bell? I’d been meaning to make this box for a while, but I just couldn’t find the time. Now I can use it for crack testing. Conditions…
The Big Picture | A Slope Engineer’s Big-Picture Perspective
Hello, everyone. This is Enta. It’s raining today, isn’t it? So, I’d like to take it easy, but that’s not really possible, haha. I’m working on compiling the data from the qualification test we conducted the other day and organizing the photos. Thankfully, there’s no work going on at the site today, so I’m able to focus on the paperwork. &n…
A Discussion of the Thermal Expansion Coefficients of Steel, Concrete, and Polyethylene
Hello, everyone. This is Enta. A while back, I put together some materials addressing the question: “Is there a reason to use steel spacers (PC spacers)?”—specifically, why they’re made of steel. “It’s because the thermal expansion rates are different, so there’s less risk of cracking.” Well…
Cost Estimation Data for Packers | Unit Price Information
Hello, everyone. This is Enta. In ground anchor construction, there’s a process called “packer installation,” right? It’s not very well known, but the cost associated with installing these packers is actually quite significant. And since this isn’t widely known, I decided to put together some cost estimation materials today, so I’m going to share them…
The Future of a Company Lies in What It Does Today | The Essence of Management
Hello, everyone. This is Enta. Work on next year’s construction projects is already underway, and I’m being consulted on design changes and the wording to include in meeting minutes. One of the most common topics is switching to new materials. I think it’s only natural—and a sound business practice—that materials are chosen that generate profit for both the general contractor and the subcontractors. Well…
Drilling Limits with Spring Drills (Part 2) | Continued Analysis
Hello, everyone. This is Enta. Regarding the spring drill boring I posted about the other day—it actually went well in the end, lol. It was a 17-meter borehole in sandy soil. The borehole diameter was φ115. It went surprisingly smoothly. (There’s a trick to it, lol.) Well, since the drilling angle was a vertical 90 degrees this time, I thought…