Effective Construction Methods for Disaster Sites and Sites at High Risk of Collapse or Requiring Immediate Action
Hello, everyone. This is Enta. Are you putting your creativity to work? I’ve been thinking lately about how rebar installation is carried out at disaster sites. Even during recovery efforts, there are many sites where parts of the structure have collapsed or caved in, aren’t there? In situations like that, the construction plan…
Tips for Aligning the Angle of Drainage Boring | Efficient and Accurate Construction
Hello, everyone. This is Enta. I met a supervisor who was new to dewatering drilling the other day. He asked me all sorts of detailed questions about things he was curious about, and I answered them, but I could tell he still didn’t quite get it. So I told him, “You’ll understand once we actually start the work!” But here are some photos from before that…
Drainage Boring Is the Primary Method for Addressing Existing Embankments | Countermeasures
Hello, everyone. This is Enta. It seems that a nationwide investigation is underway regarding the recent incident in Atami where an embankment turned into a debris flow. I suspect an absolutely staggering number of hazardous sites will be identified. When that happens, I imagine the question will be how to deal with it…
Bolt Scale Arrow Plate for Drainage Boring | DIY
Hi everyone, this is Enta. I’ve been working on something—lol—an arrow plate for dewatering drilling! It’s for the VP40 and VP50. I based the size on the inner perforated pipe. That’s because at first, I thought about making it using a VP75 hole-retaining pipe, but it was way too big…
How to Get a Good Night's Sleep Even in a Noisy Environment | Tinnitus Relief
Hello, everyone. This is Enta. Lately, I’ve been digging holes with a rotary percussion drill, lol. The thing is, I’m doing regular ground anchor work, but since I’m both doing the work and managing the site at the same time, I’m swamped, sweating buckets, and it’s really tough, lol. So, I’ve been using earplugs for a long time…
Draining Water from Mountains | Water Drainage Drilling Technician
Hello, everyone. This is Enta. The other day, I went to check on the drainage work we installed last December. Since it was the dry season when we did the work, there shouldn’t have been any water at the site, but surprisingly, a trickle was still coming out. This site is inside a tunnel, and even though there are almost no mountains above it, the water problem is really bad…
Common Misconceptions About Drainage Drilling to Remove Water from Mountains | Technical Explanation
Hello, everyone. This is Enta. Today’s topic is drainage pipes. I’d like to write about a common misconception among drainage well drillers. Well, generally speaking, rain falls from above, lol. In the mountains, water seeps in from above in some areas and flows in from far away in others, but this time I’ll focus on water coming from above…
I Tried Making a Thick Casing Tube | DIY
Hello, everyone. This is Enta. It’s cold on the job site, isn’t it? lol Anyway, I tried making a custom casing for a job site where we’ve been using core drilling since last year. The effective length is 280 mm, and I made the shoulder wall 2.5 mm thicker than the stock casing tube. It’s sturdier than the stock version…
The most fun part of a job site is the stage right before things start to go smoothly | Slope Construction Specialist
Hello, everyone. This is Enta. I’m doing manual dewatering drilling every day and coming up with new techniques as I go. Since the borehole diameter is φ90, I’m able to extract huge cores like these—the one on the left is concrete. It drills through smoothly. The rock on the right is very hard. What kind of rock is this?? Is it granite?…