Problems with Slope Stabilization Works
2023/03/28

Slope Construction Problem 1 (Slope Framing and Rebar Insertion)

Hello, everyone. This is Enta. Starting with this post, I’ve decided to launch a new series called “Slope Construction Problems.” In this series, I’ll be answering the various questions and inquiries I received during final inspections back when I was a construction supervisor. I hope you find it helpful ^^ Regarding the type of ground mentioned above…

Hot water
2023/01/30

When it comes to winter spray application, mixing with hot water is the best way to prevent freeze damage!

Hello, everyone. This is Enta. Do you remember my previous article on mixing with hot water? By mixing “cement milk” with hot water, you can raise the mixing temperature during concrete placement. I think this is the best way to improve quality, especially during the winter. The other day, I started working on the formwork…

Hakonuki
2022/11/13

Tips for Installing Cutouts in Legal-Size Frames | How to Ensure a Tight Fit for the Load-Bearing Plate

Hello, everyone. This is Enta. The temperature swings have been getting pretty extreme lately, haven’t they? Let’s make sure to bundle up while we work ^^ Cutting out boxes: This involves cutting out openings in the retaining wall (holes for inserting void pipes or PVC pipes, which are needed later for rebar installation and anchor work), but the slope contractors are installing…

Framework Construction: Drainage Location
2022/10/19

Slope of Drainage Concrete in Formwork Construction | Difference from Drainage Pipes

Hello, everyone. This is Enta. The other day, I was doing some TIG welding, but I was doing it without wearing a welding mask. Since TIG welding involves pressing the switch in short bursts (spot welding), I figured I’d be fine—but I ended up getting a massive sunburn lol. Getting sunburned in the middle of the day…

Reinforcing Bars Cut to Length
2022/08/28

When I cut out the box from the void in the sprayed-on frame, the inside was completely empty!

Hello, everyone. This is Enta. I’ve been working on a rebar insertion project for the past few days—do you know what “pre-drilling” is? It’s the process of drilling holes in advance to make it easier to drill during rebar insertion or ground anchor installation. It varies depending on the site, but as shown in the photo above…

Service Industry
2022/06/05

It means they're selling construction services

Hello, everyone. This is Enta. You know those anchor pins used in retaining wall construction, right? There’s usually one at the intersection and about two to six on the crossbeams. Even when installing rock bolts or ground anchors in the center, they’re driven into the ends of the intersection. Rock bolts…

Finish
2022/04/30

Finishing the Job on Site | Tips for a Clean Finish Without Making a Mess Using Formwork

Hello, everyone. This is Enta. Have you ever seen construction work like this? (lol) It’s pretty bad, isn’t it? The thing is, apparently this was done on the government agency’s instructions. It seems they wanted to confirm that the water was overflowing. And that’s what left this mark. The result is a total…

Surveying
2022/02/24

Surveying and Drawing Layout Plans for Sprayed Concrete Formwork | Tips for On-Site Surveying

Hello, everyone. This is Enta. One of the most tedious tasks for a slope engineer is creating slope development drawings. I’m not a fan of it, lol. That said, I do actually enjoy drawing up the plans, though~ However, if you make a mistake in how you take the measurements, it makes drawing the plans a real struggle. So…

Protective Sheeting on Slopes
2022/01/14

Prevent Freezing by Allowing the Spray Coating to Cure for 5 Hours | Quality Control for Winter Slope Construction

Hello, everyone. This is Enta. We’ve been hit by a major cold snap for the past few days—how is everyone holding up? Here in Nagano, we’re working on a slope at minus 15 degrees Celsius, installing the retaining wall almost directly on the slope. The other day, heavy snow fell again in the afternoon, bringing work at the site to a halt. Snow at this time of year is really tough. Overall, the...