I think it's about time the drilling angles for dewatering borehole construction were revised.
Hello, everyone. This is Enta. I think I’ve written quite a bit on my blog before about the angle used in dewatering boreholes. The design specifications state an angle of about 5 to 10 degrees. So, what’s the deal with this angle? How is the angle determined for dewatering boreholes? …
Why It's Important to Install Formwork Level (Horizontal) When Using the On-Site Spray Method
Hello, everyone. This is Enta. How do you install curbs? You might be wondering what I mean by that—do you install them according to the road’s slope, or do you install them strictly horizontally? The answer is that, regardless of the road’s slope, they should always be installed horizontally…
On Hole Warping During Drilling in Rotary Percussion (Part 2)
Hello, everyone. This is Enta. Today, I’d like to talk about hole warping when drilling holes in rotary percussion instruments. I talked about hole warping the other day, and here I am talking about it again lol. The warping I mentioned the other day was vertical, but this time I’ll be discussing horizontal warping. It’s easy to understand how the weight causes the hole to warp vertically, right?…