I Tried Measuring the Limit of Packer Pressurization! (Part 2)
Hello, everyone. This is Enta. Last time, I talked about packer pressure. I measured the maximum pressure the packer can handle! What I learned from this experiment was that raising the pressure above 0.2 MPa is pointless because the packer’s fabric weaves open. At pressures above 0.2 MPa, the cement…
We’re constantly researching and updating the standard construction methods we use on a daily basis!
Hello, everyone. This is Enta. To everyone who attended the briefing on dewatering rock bolts—thank you so much. During the Q&A and discussion session, I heard opinions I hadn’t even considered, and I’d like to use them as a reference moving forward. This includes the creation of guidelines and refining the design…
By thoroughly documenting even temporary construction work that isn’t recorded in official construction logs, we ensure that this information is passed on to future engineers!
Hello, everyone. This is Enta. Are you failing? I know—what a way to start! lol The other day, I was talking with a teacher from a civil engineering school and a construction consultant. During that conversation, we got onto the topic of rebar insertion work I did a long time ago, and the scori…
A trick for transferring water from the right tank to the left tank using just one hose!
Hello, everyone. This is Enta. Have you ever heard of a siphon? It seems like a lost art—or maybe a secret technique—among younger folks these days, but us old-timers know all about it! So I decided to give it a try this time lol. Do the younger employees at your company all know about it? I tried it out at the office…
The drill bits—which were supposed to determine how fast the drilling went—turned out to be all too good!
Hello, everyone. This is Enta. A long time ago (about 10 years ago), I was working as a rebar installer on a super-hard mountain. The site had double-walled pipes (why?), and it was just impossible to dig. The mountain was so hard!! But since we couldn’t change the plan, we had no choice but to dig, so we dug…
Tackling Hard Rock Drilling with a Down-the-Hole Hammer | Steps to Increase the Number of Bits
Hello, everyone. This is Enta. Are you able to adapt your construction work to the conditions on-site? Well, since our job (as slope engineers) involves working according to the current state of the mountain, we’re relatively flexible in adapting to various situations—but how well can you handle different scenarios? The condition of the natural ground looks something like this…
This Year, I'm Finally Going to Experiment with Antifreeze | Decision Article
Hello, everyone. This is Enta. It’s still that nice time of year when it’s just warm enough to break a light sweat—perfect for working. It’s a great season! And soon, it’ll start getting much colder, won’t it? Every time it gets cold, I say, “This year, I’m definitely going to try this experiment!”—and yet, here we are, already in the third year…
I Tried Making an Assembled Pressure Plate (Part 2) | Completion
Hello, everyone. This is Enta. Here’s the load-bearing plate I prototyped and did a test assembly on the other day. It was installed like this at the job site the other day, but... This is the test assembly I did the other day. Don’t you think something’s off? It’s a mistake that happened even though I pointed it out—there are six bolts on the bottom and four on the top, and the top steel plate…
I Tried Making an Assembly Support Plate (Part 1) | DIY
Hello, everyone. This is Enta. When conducting basic tests for ground anchor construction, you need a load-bearing plate, right? For example, something like this. Steel load-bearing plates typically weigh between 200 kg and 600 kg, don’t they? As for lightweight load-bearing plates, maybe something like an FFU weighing around 200 kg?…