Basic Concepts of Landslides
2022/11/29

Basic Principles of Landslide Mitigation Measures (Part 1)

Hello, everyone. This is Enta. I’ve been in Ina City, Nagano Prefecture, for the past few days working on a rebar installation job. All the scaffolding clamps are adjustable, so the scaffolding is wobbly lol. Plus, the slope is almost vertical, so it feels like it’s going to tip backward lol. I’ll use a frame catcher to keep it stable lol. Anyway, the other day, T…

Safety factor
2022/09/29

Number of Stages and Safety Factor for Reverse-Rotation Ground Anchor Installation | Determining the Optimal Tensioning Timing

Hello, everyone. This is Enta. When it comes to ground anchor construction, knowing exactly when to apply tension is crucial, isn’t it? Surprisingly, this isn’t always specified in the consultant’s design, so the construction team sometimes runs into difficulties. This is especially true for reverse-wrap installation. …

Joints
2022/07/14

The Allure of Joints | An Explanation of Regular Fractures in Rock, Such as Columnar Jointing

Hello, everyone. This is Enta. The other day, I visited the office of the famous Go-Da Kaihatsu! We had a full day of meetings from morning until evening! It was a lot of fun. I hope we can do a lot of innovative things going forward ^^ The time has come when I can share more with you all…

Manual calculation
2022/07/05

[Practical Tips] How to Calculate the Radius (r) of a Circle with an Unknown Diameter

Hi everyone, this is Enta. Do you know how to find the radius (R) of a circle? R equals the radius, right? lol Have you ever been drawing a blueprint and wondered, “What’s the diameter of this circle?” I find myself using this quite often when modeling real-world objects in 3D CAD. I think it’s worth keeping in mind…

Ultra-Lightweight Drilling Machine
2022/06/27

Here's what the ultra-lightweight drilling rig looks like right now—next up is a test drill!

Hello, everyone. This is Enta. Anyway, here’s how the ultra-lightweight drilling machine I’ve been working on since spring turned out. *Sorry, but for various reasons I can’t show you the details lol. Please just get a feel for it. Since this is a portable drilling machine, I can take it anywhere…

Weather resistance
2022/06/10

What the heck is weather resistance?!

Hello, everyone. This is Enta. Continuing from last time, here’s the leveling mat used on the underside of the load-bearing plate. The truth about its weather resistance has finally come to light! lol Claims that it’s “weather-resistant” have hardly been verified at all! However, as for cross-linked polyethylene, it is weather-resistant…

If it's not there, it's not there.
2022/05/26

No matter where you buy cement, it meets JIS standards.

Hello, everyone. This is Enta. Our industry uses a lot of cement, doesn’t it? Plus, with material costs rising so rapidly lately, it’s really tough, isn’t it? The other day, I went to a home improvement store and found that their cement was actually cheaper than what we buy, lol. That’s per bag…

Signs of an impending cliff collapse
2022/05/16

Collapse of the Cliff (Slope) or Stone Wall Below Your Home (For the General Public)

Hello, everyone. This is Enta. There have been a number of landslides in various places recently, haven’t there? Landslide in Naka Ward, Yokohama: Residents Continue to Evacuate. While there are various causes for landslides, water is usually the main factor. During the rainy season, when heavy rains and prolonged rainfall continue, the situation becomes extremely dangerous. &n…

Maintenance
2022/03/31

Spray Machine Overhaul Focuses Mainly on Liner Replacement | Maintenance Tips

Hello, everyone. This is Enta. The spray machine I’ve been taking apart and servicing for the past few days is starting to look pretty good. It’s a relief that the liner in the lower hopper still seems to have plenty of thickness left, lol. Since some of you might not know, let me explain. Inside the spray machine, the mortar is mixed…