For ground anchor construction, an initial load of approximately 0.1 to 0.2 during tensioning is sufficient.
Hello, everyone. This is Enta. Since I was asked, “What exactly is initial load?” I thought I’d write a post about it. In the book *Design and Construction Standards for Ground Anchors and Explanatory Notes—Standards of the Japanese Geotechnical Society*, it states, “The tensile force applied to the tendon when tensioning and anchoring the anchor…”
It's Super Easy! Tips for Tension Management in Ground Anchor Construction
Hello, everyone. This is Enta. The Process of Construction and Construction Management for Ground Anchor Projects. The other day, I wrote about the process involved in ground anchor projects. I think it probably seemed like there weren’t many sources of fear or anxiety in ground anchor projects. However, in reality…
Workflow for Construction and Construction Management in Ground Anchor Projects
Hello, everyone. This is Enta. What do you think is the most challenging part of ground anchor installation? From a craftsman’s perspective, the question is, “How should we go about installing them?” Right? However, the installation process itself is relatively simple. If you follow the steps and include the necessary management checks…
By teaching them the real thing, they can take on dangerous challenges in a safe environment!
Hello, everyone. This is Enta. Since last week, I’ve been teaching construction management—from drilling to tension control—for ground anchor projects. I’ve been going out to teach because I’ve been getting requests like this lately. Of course, it’s part of my job. Until now, this kind of know-how…
グラウンドアンカー工における被圧水の高い箇所でのパッカー使用時にコレだけはやってはいけない！
皆さんこんにちは。 エンタです。 コレ何か、分かりますか？ そう！グラウンドアンカー工でのアンカー材の残骸ですｗ 失敗した結果ですｗｗｗ 以前、この現場では2本失敗しました。 この経験で分かった事は、グラウチング…
粘土・シルトの削孔は思ったよりも大変です。
皆さんこんにちは。 エンタです。 先日から水抜きボーリング工を施工しています。 最近忙しいのでオペで現場に出ますが、 8月と違ってかなり気温も落ち着いて来たので非常に体が楽です。 これからが良い時期ですね。 気をつけて行きましょう！ 閑話休…
イイモノ発見！(アンカー屋が使用するとロッドの脱着が安全に行える！)
皆さんこんにちは。 エンタです。 これ使っていますか？ これはロータリーパーカッションで使用するダブルレンチです。 通常のダブルレンチは結構落したりして危ないのですが、 このダブルレンチはエキステ側に固定出来るので絶対に落ちません。 だから…
I still think digging with water is the fastest way to dig a hole!
Hello, everyone. This is Enta. These days, drilling is more about using water and air than just water, isn’t it? Water-only drilling used to be the norm. (Water and air is a more recent drilling method.) To clean the inside of the casing, we used to pour water liberally and move the inner rod up and down to flush it out…
Safe Work Spaces on Scaffolding for Rotary Percussion Work
Hello, everyone. This is Enta. Let’s say you’re performing skid-type drilling for ground anchor installation or rebar insertion. How wide do you think the scaffolding edges need to be in that case? I’m referring to the scaffolding on both the control panel side and the operator’s side relative to the drilling location. Often, the width of the scaffolding (horizontally)…