Soil Water Retention
2025/08/26

Looking at the plants on site gives you a good sense of the terrain and soil moisture conditions. A prime example is bamboo!

Hello, everyone. This is Enta. When I go out to survey slopes, I pay special attention to the bamboo. Well, it’s not just the bamboo—but by looking at the plants growing there, I can get a rough idea of the soil conditions. “Bamboo groves = a sign of good surface water retention,” “willows and alders = a sign of valley bottoms or high groundwater levels…”

Great Stuff
2025/01/08

If your tools aren't suited to the job site, just make them to fit. That alone will reduce your stress!

Hello, everyone. This is Enta. Today, a construction-themed YouTuber is visiting the site to film a video ^^ Since we’ve gotten permission from both the general contractor and the local government, we’re going to go ahead and film this openly lol. I hope that by sharing this publicly, even just a little bit, it’ll help improve our image. And we, the earth…

Verification of the Stabilized Subgrade
2024/10/05

How do you verify the anchorage point in ground anchor construction?

Hello, everyone. This is Enta. In a recent survey conducted at the “K&i Web Academy,” I received a suggestion asking, “How can I check the anchorage of ground anchors (other than using slime)?” I’d like to write about this topic today. …

Mortar Spraying Worker
2024/04/24

What happens over time when mortar is sprayed onto soil areas as a weed control measure? And what are the countermeasures? (Part 1) (For the General Public)

Hello, everyone. This is Enta. Sometimes, mortar spraying is used as a weed control measure, right? This photo shows the site after a landslide, but since it was done for weed control, a significant portion of the soil and debris has been treated with the mortar. On YouTube, I’ve seen that applying mortar spray for weed control helps prevent slipping…

Machine Enthusiast
2022/02/28

Pros and Cons of Ultra-Lightweight Drilling Machines | A Thorough Review by Slope Specialists

Hello, everyone. This is Enta. The 65kg drilling rig I introduced the other day turned out to be an ultra-lightweight model that can be operated with a crab crane, lol. Since we’re currently in the middle of a project, I can’t show you too much of it, but here’s what it looks like. The crab crane in the photo is the MC305C-3 from Maeda Manufacturing…

Single bit
2022/02/18

Drilling a Single Hole in a Non-Self-Supporting Mountain | What We Gain from Challenging Sites

Hello, everyone. This is Enta. I’m really stuck on this job right now, lol. It’s supposed to be single-pipe drilling, but this isn’t the kind of slope where you can actually drill with a single pipe—it can’t be done without double-pipe drilling! If I try to drill with a single pipe, it just collapses right away. The borehole walls in the natural ground start to…

Install the retaining wall along the natural slope
2020/03/03

Filling a Large Hole in Natural Ground | On-Site Response

Hello, everyone. This is Enta. When you’re installing retaining walls, there are times when you run into a big gap in one spot and just don’t know what to do, right? For example, something like this. There’s a huge gap, and it doesn’t seem like you can bend the retaining wall to fit it. But it’s pretty deep. If you leave it alone, it might eventually collapse…

Finish
2019/09/13

What You Need to Know About Installing a Legal Framework (Part 1) | Basics

Hello, everyone. This is Enta. Should you bend the frame to fit the contours of the mountain, or run it straight through? Which do you think is better? While the fundamental principle of a free-form frame is to shape it to match the mountain’s contours, aesthetic considerations are also important. This is a cross-sectional view from above, but the nuances…