Hello, everyone

This is Enta.

I've been in Nagano for the past few days.

That said, they're currently doing a reverse-winding installation near our office.

According to the design, the counter-winding process adds 20%, but will that be enough?

That's the gist of it.

Reverse-spin installation is really tough, isn't it?

---

But that's beside the point.

Anchor Material Inspection

Material inspection is extremely important in ground anchor construction.

This is important for other construction projects as well, but it’s especially true for critical structures.

That’s why the parts that disappear become particularly important.

 

When using the anchor body measurement scale, the most important factors are, as expected, the fixed length and the free length.

After all, the key to ground anchor construction is the anchorage section.

If this part is wrong, there's no point in even discussing it.

That's why this part is especially important.

The fixed length is the portion from the tip cap to the boundary between the fixed section and the free length; we measure the length to ensure this area remains clean.

Check the placement and length of the spacers against the drawing.

Similarly, we will measure the free length.

 

However, please note that the free length also includes the excess tension length.

It seems similar to free length and tension allowance, but it’s actually different.

That said, since it’s an extension of the same PC strand, the structure is the same, but it appears differently on the drawings.

Since the material inspection is conducted to verify that the materials received match those specified in the drawings, please keep them separate.

 

Once the material inspection of this prestressing steel is complete, it will be used as a head component.

The head section must be kept as dry as possible to prevent it from getting wet from rain or water.

In particular, all materials other than the head cap are raw materials.

Since the raw material has not undergone any anti-rust treatment, it will rust immediately.

It really is just a split second!

Even just moisture can cause rust.

Therefore, when inspecting materials, it’s best not to take them out of the bag if possible.

Put it in a bag as soon as you take it out.

Also, please be very careful, as the wedges tend to come loose easily.

 

Material inspection for ground anchor work is a real challenge.

I don't know what it is, but each one is just so heavy, lol.

We even stretch out the anchor body to inspect it. Depending on the situation, we might even have to rewind it lol.

Be very careful, as it's quite common to get your hand caught in the machine at times like that.

 

See you later.