Suspended Drilling Rig
2017/06/06

Various Drilling Methods for Slope Drilling

Hello, everyone. It’s Enta here. Today, I’m heading to Akita to run some errands. By car… It really is a long drive, isn’t it? My butt feels like it’s going to fall off lol. Anyway, moving on—this post is about drilling methods. It’s an older article, but since it’s so popular, I’m reposting it here lol. &nbs…

Packer
2017/06/02

Cement Slurry Won't Stop (Part 3) | Comparison of Packer Types

Hello, everyone. This is Enta. Next week, our projects are overlapping in a way that’s impossible to manage, so we’ve decided to put one of them on hold... Things were looking like they’d run smoothly, but one project fell behind and another got moved up, so we couldn’t work it out... orz Sorry for the inconvenience. The project with the 300 legal limit is also...

2017/05/31

The Cement Slurry Won't Stop (Part 1) | What Is a Packer?

Hello, everyone. It’s Enta. I’ve been swamped with work ever since Golden Week ended. Finally! I’m so happy! All the machinery in the warehouse is going to be removed. Once that happens, I’ll feel a little relieved… The fear of having no work, lol. That’s the tricky part about public works projects, isn’t it?…

Zabuton Frame
2017/05/27

Examples of Failed Zabuton Frames | Warping, Camber, and Insufficient Thickness

Hello, everyone. This is Enta. Lately, I’ve been seeing a lot of failed zabuton projects. So, I’d like to explain what constitutes a failure. These are listed in no particular order. It’s warped. It’s twisted. One of the edges is raised. The center is low. It’s curved like a kamaboko. Or is it the other way around…

2017/05/23

Corrosion Protection Structures for Ground Anchors I, II, and III | Do Temporary Structures Require Backfilling?

Hello, everyone. This is Enta. I noticed something while grouting the opening of a temporary anchor. With this temporary anchor, the grout had settled about 1 meter after injection. Well, that’s a common occurrence, so it’s not a problem. But here’s the thing. I was told to fill this in…

Design Cross-Section for Anchor Works
2017/05/11

The Ingenuity of Anchor Engineers | Moving Beyond the Sense That Everything Has Already Been Done

Hello, everyone. This is Enta. When someone asks, “What kind of creative ideas do anchor contractors come up with?” I feel like I’ve already run out of things I can say off the top of my head. But anyway, I’ll list some things that other contractors probably aren’t doing. (Of course, there will be some overlap, and in the past…

2017/04/18

Who's to Blame for a Loose Anchor? | Design Review and Construction Liability

Hello, everyone. It’s Enta. The big event of my comprehensive health checkup—the gastroscopy—went by pretty easily. I turned out to be the type who can handle it surprisingly well. And both my stomach and duodenum were spotless, lol. You should definitely get one done once you turn 40, lol. With that gastroscopy…

2017/04/12

Troubleshooting (Part 3) | Causes of Ground Anchor Failure

Hello, everyone. This is Enta. Here’s the 2.2 kW motor I forgot to photograph the other day. I removed the rust from the rotor and cleaned the electromagnet as well. I replaced the bearings with new ones. While I was at it, I also took the angle grinder apart and cleaned it. When used for anchor work, it tends to grind…

Aptitude Test
2017/04/03

How to Conduct Suitability Tests in Ground Anchor Construction (Part 2)

Hello, everyone. This is Enta. Today, I went to the Iwakura Cherry Blossom Festival again to help out the Chamber of Commerce—sort of? lol. Well, it’s still pretty much a “bud festival” at this point—only about 20% in bloom, so it’s not much to look at yet. I think the cherry blossoms will be at their peak sometime in the middle of this week or later. But the weather at the end of the week is… Anyway, moving on &n…