Why Unit Prices for Ground Anchor Drilling Vary So Much Depending on Soil Conditions | How Cost Estimation Works and Quotations
Hello, everyone. This is Enta. A while back, a young site supervisor from another company asked me, “Do you pay attention to the soil conditions when drilling holes for ground anchors?” (Well, you better pay a lot of attention to them, lol.) If you underestimate the soil conditions when preparing a cost estimate, you’ll be the one crying about it later. But anyway…
Why Are Lap Joints in Reinforcing Bars Unsuitable? | Offset Provisions in the Concrete Standard Specifications and Workarounds
Hello, everyone. This is Enta. This happened a while back, but I was on-site at a construction project overseeing an assembly inspection when the person in charge pointed out, “Oh, this is a T-joint,” and the whole site went dead silent lol. Since T-joints are generally prohibited under the Japan Society of Civil Engineers’ Standard Specifications for Concrete, it’s only natural that when one is found…
What Is the Earthwork Regulation Act? | An Explanation of How the "Permit Required/Not Required" Status Affects Slope Construction Projects
Hello, everyone. This is Enta. The rainy season has begun, and it’s that time of year when news of heavy rains is reported from all over the country. Every year around this time, we hear stories from somewhere about “embankments collapsing” or “slopes shifting.” One incident that’s still fresh in my memory is the debris flow that struck Atami City, Shizuoka Prefecture, in July of Reiwa 3…
Are ICT Slope Construction Methods Really Practical on Site? | Considering 3D Surveying and As-Built Management from a Hands-On Perspective
Hello, everyone. This is Enta. In recent years, the construction industry has been flooded with buzzwords like ICT, DX, AI, and 3D data, hasn’t it? To be honest, I think a lot of people working on-site wonder, “Can we really use that on a slope?” Well, the foreman is…
What Does 1.24 m³ of Sand for Sprayed Mortar Mean? | A Veteran Slope Engineer Thoroughly Explains Loose Volume and Absolute Volume
Hello, everyone. This is Enta. Every once in a while! I get asked, “What does ”1.24 m³ of sand’ mean in the mix ratio chart for sprayed mortar?” Lately, specifications just say “1:4 sprayed mortar,” and the 1.24 m³ figure…
What’s the Right Number of Spacers for Slopes? | An Empirical Guide to Estimating Quantities Not Specified in the Specifications
Hello, everyone. This is Enta. Sometimes, the younger guys on the job site ask me, “So, how many spacers should we actually put in?” The more experienced guys tend to rely on instinct, so when they try to explain it in words, they get stuck lol. I thought I’d clear this up once and for all this time…
Capturing Cross-Sections with the iPhone 17 Pro’s LiDAR | Steps for Cost-Effective Point Cloud Creation on-Site Using Scaniverse and CloudCompare
Hello, everyone. This is Enta. In this post, I’ll share how I used the iPhone 17 Pro’s LiDAR to capture a point cloud and create a cross-sectional diagram—all while keeping costs as low as possible. I’ll walk you through the process and show you the results. Lately, even civil engineers on construction sites have been saying, “I’d like to try point cloud scanning, but…”
Reinforcing Bar Lap Joints | Practical Standards for 45D and L/2 Offset Joints in Slope Construction
Hello, everyone. This is Enta. I’m going to write about “rebar lap splices,” which are a constant feature at slope construction sites. lol When I was just starting out, I used to wonder all the time, “What D-value should I use for the lap length?” and “How much should I offset the splices sideways?” In this post, I’ll share some criteria to help you make decisions without hesitation on the job…
I Tried Measuring the Limits of Packer Pressurization! (Part 5) Simulator
Hello, everyone. This is Enta. I tried measuring the limit of packer pressure! I tried measuring the limit of packer pressure! (Part 2) I tried measuring the limit of packer pressure! (Part 3) I tried measuring the limit of packer pressure! (Part 4) Continuing from last time…