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Tips for When Rebar Just Won't Go In During Rebar Installation
Hello, everyone. This is Enta. I finally wrapped up a suspended drilling job the other day. So, that’s why I’m in Kagoshima today! The reason is that a supervisor from a slope stabilization company called me in to do *that*!! I’ll be heading back on the 11th, though lol. But anyway, regarding suspended drilling and such…
What to Do When Cement Slurry Is Too Thick (Part 2)
Hello, everyone. This is Enta. The other day, our rough-terrain crane was being used for suspended drilling when it broke down during our lunch break! Apparently, the dynamo seized up and the fan belt burned out, so we had to cancel the afternoon’s drilling. It was the first time I’d ever seen a rough-terrain crane break down! …
What to Do When Cement Slurry Is Too Thick (Part 1)
Hello, everyone. This is Enta. I just found out recently that earthwork contractors seem to be reading this blog, too!! I was really surprised. The reason is that an earthwork contractor working on the same job site as me seems to be reading it—he actually came up to me and said hello! To be honest, I thought only slope contractors would be reading it…
Should the Injection Hose Be Removed? | 2018 Guidelines
Hello, everyone. This is Enta. The thermometer on site read 40 degrees... It’s absolute hell out here. Please be very careful not to pass out! But anyway, when it comes to rebar insertion work, quite a few people say that the grout hose tends to come loose. Do you know why that happens? The people who say that...
Clip Spacers Can Be Used Even with Sheath Tubing | Test Results
Hello, everyone. This is Enta. For the past few days, I’ve been having our younger guys practice operating machinery using a spring drill. Since they’re rebar installers, this is a relatively short and good exercise for them. They’ve been working as assistants for a year, so I figured it was about time, haha. They’re a bit nervous about using the machine, but since they’ve been working as assistants for a year, the senior operators…
Sheath Pipes Are Not Required for Rebar Insertion Work | Basis and Reasons
Hello, everyone. This is Enta. Did you all make it through the typhoon okay? Here, the rain and wind weren’t as bad as I’d expected. Tomorrow, I’ll be starting first thing in the morning with a site inspection. But anyway, I get asked this a lot: “Is this really necessary?” After inserting the rebar, we pour the concrete, fill in the gaps, and attach the caps…
Using Products to Make Your Life Easier | Choosing Tools for Slope Work
Hello, everyone. This is Enta. Lately, all I’ve been talking about is the heat, lol. That just shows how hot it is—it’s truly hell out on the job site. Recently, I handed these out to our employees to help them stay hydrated. They’re the kind where you swallow the salt tablets directly. You take a few tablets with water at the start of the morning and afternoon shifts…
Bit Wear in Suspended Drilling Rigs | Consumables Management
Hello, everyone. This is Enta. The other day, I finished up at my current job site, so I moved the equipment to the next one. This site involved inserting rebar into 3.7-meter-deep holes, which made digging extremely difficult—the hole walls wouldn’t stay upright on their own. They’d collapse immediately, and the slurry wouldn’t come out. So, my personal best was 18 holes in a single day…
Tips for Drilling with a Suspended Drill (2018 Edition) | Efficient Operation
Hello, everyone. This is Enta. All I can say is, “It’s so hot!” lol The other day, the sleeve on my suspended core drill cracked. Well, that happens all the time. It usually cracks when there are a lot of dry runs. Operating a suspended core drill is surprisingly tricky, but you have to maintain constant tension…



