Approaches to Placing Ground Anchors on Undulating Slopes (Part 1)
Hello, everyone. This is Enta. How do you determine the spacing for the zabuton frames in ground anchor work? With that in mind, I’d like to go over the basics. Let’s say you have a slope like this. Install ground anchors here with a 2.5-meter spacing in both directions…
Basic Tests for Measuring Circumferential Friction Resistance (τ) in Ground Anchor Construction (Part 3): Soil Bearing Capacity
Hello, everyone. This is Enta. Basic Tests for Measuring Circumferential Friction Resistance (τ) in Ground Anchor Construction (Part 1) Basic Tests for Measuring Circumferential Friction Resistance (τ) in Ground Anchor Construction (Part 2): Bearing Capacity Since the last post, we’ve been moving away from the topic of circumferential friction. This time…
Basic Tests for Measuring Peripheral Friction Resistance (τ) in Ground Anchor Construction (Part 2): Bearing Capacity
Hello, everyone. This is Enta. Basic Tests for Measuring Peripheral Friction Resistance (τ) in Ground Anchor Construction (Part 1) I was working on a simple calculation sheet for peripheral friction, but due to various circumstances, I wasn’t able to finish it in time, so this time I thought I’d write about soil bearing capacity and load-bearing plates…
Basic Tests for Measuring Circumferential Friction Resistance (τ) in Ground Anchor Construction (Part 1)
Hello, everyone. This is Enta. I’ve been planning a basic test for ground anchor construction for the past few days. This is my first time dealing with this kind of case, so I can’t conduct the test using standard anchor materials... lol The reason is that, first of all, the embedment length of the anchors we’ll actually be using…
Should the road be sloped or level when installing ground anchors or reinforcing bars?
Hello, everyone. This is Enta. Which is better for ground anchor installation and rebar insertion: installing formwork or pressure plates? Why it’s best to install formwork level (horizontally) on-site. I’ve written about this before, but the same applies to formwork, lol. Road gradient…
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…
We conducted a basic test, but it wasn't very accurate.
Hello, everyone. This is Enta. I took the basic exam the other day. What exactly is the basic exam? (In a nutshell) Since the pressure gauge on the manufacturer’s jack is analog, I’ve replaced it with a digital one. The reason I switched to digital is that, no matter who’s reading it…
I've written a detailed description of the procedures for tension control in ground anchor construction.
Hello, everyone. This is Enta. I’d like to outline the procedures for tension control in ground anchor installation. ■ Purpose of Tension Control The tensioning (pulling) of ground anchors is performed to apply tension to the installed prestressed steel strands and to verify that the force is being effectively transmitted to the ground through the anchorage…
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). …