Horizontal Angle  Mounting Angle
2022/11/07

When Installing Rebar, Should It Be Perpendicular to the Slope or at a Specified Angle!? (Part 1)

Hello, everyone. This is Enta. Today we have interviews for Vietnamese technical interns. Chan, who is currently a technical intern, is also serving as an interviewer ^^ I’m looking forward to it for many reasons. But anyway, which angle is better for rebar insertion in formwork, sprayed mortar, and sprayed concrete? &nb…

Zabuton Frame: Anchor Drilling
2022/04/12

Considering Whether to Pour Concrete in a Single Batch or in Separate Batches When Drilling Double-Pipe Holes for Rebar Installation

Hello, everyone. This is Enta. Since I get asked about this often, I’d like to write about it again. “Grout Injection During Double-Pipe Drilling for Rebar Insertion.” I really get asked about this a lot! Is the grout injected into each pipe individually? Is it okay to inject it all at once? Is there any literature on this? And so on…

Slope Stabilization Work: PKT Ground Anchor System
2022/01/15

Consult with Contractors When Selecting Machinery for Slope Construction | The Importance of Consulting During the Design Phase

Hello, everyone. This is Enta. Every few years, we come across a design that’s a little unusual, lol. I’m talking about ground anchor installation using a rotary drilling rig. It’s also known as a spindle-type drilling rig. These days, we use it for grouting and soil testing, and with larger machines, we use down-the-hole hammers…

Ingenuity
2020/12/18

The most fun part of a job site is the stage right before things start to go smoothly | Slope Construction Specialist

Hello, everyone. This is Enta. I’m doing manual dewatering drilling every day and coming up with new techniques as I go. Since the borehole diameter is φ90, I’m able to extract huge cores like these—the one on the left is concrete. It drills through smoothly. The rock on the right is very hard. What kind of rock is this?? Is it granite?…

Drilling Status
2019/08/17

I Love Machinery! Overseas Drilling Machines | Introduction to Overseas Models

Hello, everyone. It’s Enta here. I was watching YouTube over the long weekend—videos of anchor installation and double-pipe drilling overseas, lol. Drilling and construction methods really do vary from country to country, don’t they? It’s so interesting! I’m going to share some of that with you today, lol. The amount of spillage here is insane, isn’t it!!! lol. And then…

Rotary Percussion Consumables
2018/03/30

Rotary Percussion Consumables (Part 1) | Drilling Machine Parts

Hello, everyone. This is Enta. The Iwakura Cherry Blossom Festival has begun. Please be sure to come check it out. I’ll be selling yakisoba there this weekend, lol. Iwakura Cherry Blossom Festival Some people are posting daily updates on the cherry blossoms’ progress on Facebook, so be sure to check that out as well. Iwakura Real Estate Center…

Suspended Drilling Rig
2017/06/13

Various Drilling Methods for Slope Drilling (Part 3)

Hello, everyone. This is Enta. I’ve been working on overhauling my mixer for a few days now, and I’ve successfully finished removing the rust from the first one lol. Next, I’m going to give it a good cleaning and apply some rust inhibitor. I’ll be applying it with an air gun, but that’s a real pain, isn’t it? It’s tricky…