Suspended Drilling Rig: Tips for Drilling
Hello, everyone. This is Enta. Lately, I’ve been drilling away like crazy with a suspended core drill. So, I want to talk about a little issue with slurry discharge that’s pretty easy to run into. Take a look at this drilling operation. The drilling slurry is gushing out. This is a common sight, but…
Types of Bits for Suspended Drilling Rigs (Part 2) | For Clay Formations
Hello, everyone. This is Enta. In response to a question from my recent blog post, someone asked what to do when you encounter loose clay layers. In reality, the only option is to drill slowly while keeping an eye on the slime, but these days, there are actually some pretty good drill bits out there. Haha. This one here…
Elongation of Reinforcing Bars in Rock Bolt Installations | Calculation Formula for Tension Control
Hello, everyone. This is Enta. The other day, I was out mowing the grass for the PTA first thing in the morning, lol. Mowing the grass at school is really hard work. There are concrete blocks all over the place, and just when you think it’s just grass, it turns out to be some other kind of plant, lol. When I can’t tell for sure… lol. Anyway, I managed to mow about 80% of the school grounds with the mower…
Torque Wrench Management Methods for Rebar Insertion Workers
Hello, everyone. This is Enta. I’ve been in Kagoshima for a few days now. Well, since it’s my hometown, I guess you could say I’ve “come” here—or rather, “come back.” It’s been over 20 years since I left Kagoshima, so the atmosphere has completely changed without me even noticing—it feels like a town I don’t recognize anymore. So, this time, my…
The Role and Construction Methods of Box Cutouts in Frame Construction | Timing of Cutouts
Hello, everyone. This is Enta. The Obon holiday is over, huh? lol Things are finally getting back on track at work starting today. Everyone, it’s still really hot out there, so please be extra careful while working on site. It looks like the lingering summer heat will be intense this year too! But enough of that. Materials for cutting out boxes in anchor installation and rebar insertion work. Anchor installation…
Reasons for Selecting Drill Hole Diameters and Changes | How to Choose Between 45, 50, and 65 mm
Hello, everyone. This is Enta. For the past few days, I’ve been feeling kind of down ↓↓↓ lol. There are good days and bad days. Even on days like that, I want to make sure I can keep my head up. But anyway, someone asked me, “What determines the bore diameter?” So, I’m going to write about why that is…
Capillary Action in Anchor Work | Why Water Seeps Out of PC Steel Strands
Hello, everyone. This is Enta. The other day, an acquaintance of mine—a construction manager and business owner—passed away after a long battle with illness. He was a true tough guy who survived the tough construction industry on his own. I wish I could have met him a little sooner. May he rest in peace. But enough of that. Regarding anchor work…
FAQ on Bolt Scale Self-Drilling Capability | Compatible with D29
Hello, everyone. This is Enta. I’ve been getting a lot of inquiries lately, such as: “Do you have any self-tapping options?” “What about self-tapping for bolt scales?” and “Are there any arrow plates for self-tapping?” You won’t find any mention of this in the catalog. However, the D29 threaded rebar…
Drilling for Slime Is a Waste of Time | Along with Scam Calls About Electrical Safety
Hello, everyone. This is Enta. The other day, I received a call from a company called Denki Hosen Co., Ltd. Denki Hosen Co., Ltd.: “We’re calling on behalf of Chubu Electric Power. May we verify the inspection number on your usage statement?” Me: “What exactly are they commissioned by Chubu Electric Power to do…