Есть мнение, что предварительное натяжение работает только с тросами. В данном случае арматуру натягивают, чтобы она не провисала в опалубке. Да и не нужно это в колоннах, потому что они испытывают нагрузку на сжатие.
Why wasn't the tension of the rebar shown? This step is very vital to pre-stress the concrete. Without it, a long thin concrete tube like this will collapse with very little load.
How many times have you seen concrete fail in Japan? A lot? Or almost never since the earthquake in Kobe. Why don't you go on a chinese construction page and talk shit? Do you think the guy that made this video runs the company? You're a troll.
Because it^s not ! Who said these or pre-stressed? The problem of long thin ones is instability. But the instability isn't a problem as those are set into the ground, and with the loading of the terrain around, it stabilises the piles.
If you look at the screen of the computer controlling the centrifuge - it ramps up slowly from 250 RPM all the way to 1530 RPM. I'm not sure the exact radius of the concrete pipe they're working on, but it looks to be at least 20cm (40cm width total). That would mean it's spinning at a Relative Centrifugal Force (RCF) - equivalent to 'g force' of 523g. The human circulatory system fails in fighter jets at about 5g. At 523g's there isn't any significant amount of water staying in the cement (or vice-versa) before they pour out the excess.. don't worry, they've done the maths and science prep already.
Бетон дорогой, а рабочая сила дешёвая. Бедность. Очень трудоёмкий процесс, много технологических операций. Арматура убогая . Дырка посередине зачем ? Без дырки свая была бы прочнее !
![ค้าง (STILL) - GEMINI [ OFFICIAL MV ]](http://i.ytimg.com/vi/Ftxx3hk5vkU/mqdefault.jpg)
同業の事務職として、勉強として勉強になりました。ありがとうございます。
機械科の学生です。勉強の参考資料として非常に優れている動画であると思いました。
カワノ工業の技術凄いですね👏✨興味深く拝見しました✨
Danke für das schöne und sehr interessante Video.
Respect maximum from Poland!
す、す、素晴らしい。。
そして働いてる方々かっこいいです！
Japanese industry is a great
Well done . Informative 👍👍👍. Thank you for sharing, be safe, 🇨🇦
プロセスX👍👍👍
日本の技術力の高さが伺える。大きなものほど精度が必要。所々危険な作業もあるようですがご安全に！
Love from Bangladesh
Yay more knowledge thank you for being awesome
カッコイイ‼︎✨
Beautiful work guys.
Best of Best 👍
The concrete pile production process in Japan is so modern, thank you for sharing like 🔔💯OK my friend
こうして我々の家庭に届けられる
Спасибо! Было очень интересно и познавательно! 👍
Những cây cọc bê tông được sản xuất, Rất đẹp và công phu. Người Nhật làm OK 🇯🇵👍.
埋没数十年後ちゃんと抜くまで強度が保たれてるのがすごいわな
Every thing is so clean and precise !
Very good very nice ❤
Ein Allerwelts-Prozess. Das einzig japanische daran ist, dass er in Japan stattfindet. Aber letztlich macht man das überall auf der Welt genau so.
Quy trình làm cọc bê tông Nhật Bản rất tuyệt vời. Nhà máy sản xuất rất đỉnh..🇯🇵👍.
Thank you for the always great process! Very encouraging and motivating!
很棒的影片，感謝分享👍
精致得像艺术品👍👍🇯🇵
Amazing gaint concrete pipes making
عالی بود👏👏
A very special place
I see alot of intersection of different industries in close proximity here
8 : 08 min workers blue air cooled jacket 😊
@7:40 Wow that's a big hand-stamp!
This missed showing the pre-stressing of the long steel-rods that they fit into the steel rings at the top and the bottom, no?
Есть мнение, что предварительное натяжение работает только с тросами. В данном случае арматуру натягивают, чтобы она не провисала в опалубке. Да и не нужно это в колоннах, потому что они испытывают нагрузку на сжатие.
Biz türkiye deprem bölgesi olduğumuzdan,sizleride tebrik ediyorum...❤
こういう事は大事小中で社会科見学しなくては。いけない
This technique was pioneered in Australia by Walter Hume.
電柱とかも同じ工法で作ってるのかな
7:45 あたりの検査。これが出来形サイズの測定検査だったら残念だ。こんな貧弱なコンベックスで一人で手送り測定とは…。
出来れば鉄筋の納入・加工とコンクリート材料の納入検査と配合状況も見せて頂きたかった。
BEST
Centrifugal compaction? Fascinating.
Standard !
Muito legal . . . .
👍😀🇧🇷
Prai Hume, dah lama guna tekno ni.
Why wasn't the tension of the rebar shown? This step is very vital to pre-stress the concrete. Without it, a long thin concrete tube like this will collapse with very little load.
How many times have you seen concrete fail in Japan? A lot? Or almost never since the earthquake in Kobe. Why don't you go on a chinese construction page and talk shit? Do you think the guy that made this video runs the company? You're a
troll.
Because it^s not !
Who said these or pre-stressed?
The problem of long thin ones is instability. But the instability isn't a problem as those are set into the ground, and with the loading of the terrain around, it stabilises the piles.
カワノ工業って田布施にも工場なかったっけ。
188号線走ってるときに見かけたような。
❤❤❤❤❤❤❤❤
باسم الله الرحمن الرحيم ما شاء الله
❤Nice
數拾年前Hk都有，現多用工字鐵椿，大口徑鋼椿，可大至2.5M。
電柱を作る方法と同じだ！
Класс !
interesting water separation and drain. looks like its done before the concrete hardens seems risky
If you look at the screen of the computer controlling the centrifuge - it ramps up slowly from 250 RPM all the way to 1530 RPM. I'm not sure the exact radius of the concrete pipe they're working on, but it looks to be at least 20cm (40cm width total). That would mean it's spinning at a Relative Centrifugal Force (RCF) - equivalent to 'g force' of 523g.
The human circulatory system fails in fighter jets at about 5g.
At 523g's there isn't any significant amount of water staying in the cement (or vice-versa) before they pour out the excess.. don't worry, they've done the maths and science prep already.
👍👍👍👍👍👍👍👍
Прикольно
не подробно,отсюда не всё ясно по процессам,каково время центрифугирования бетона,пропарки и так далее?
Why main rebars loose or not prestressed? Anybody could explain?
i have one question when you are poring concrete in pile then how it take shape of tube ?
杭となる訳か
캬!!~일본 최고 👍
32 second ago
what are the piles used for? piers out into the water?
It was described in the subtitles, the piles are used in weak soil to support the foundation of buildings"
6:07 when that Taco Bell hits you
钢筋没有焊接固定，焊个铁丝笼有啥用？
不思議だ～🤔あれだけ強烈に圧力掛けて(昔はピストン式😂)打ち込むのにセメントにヒビが入らないのが--普通砕け散るが？50メートル打ち込む時も--ムム～🤔愛してる💓♥️❤️コンクリートパイル様世の中不思議だらけ---
🏹☯🇯🇵🎴🏹
ずいぶん手作業多いんだなぁと
そんなに需要無いから機械化できないのかな
🇰🇷🇯🇵🇵🇭🇹🇭
Spun pile
Бетон дорогой, а рабочая сила дешёвая. Бедность. Очень трудоёмкий процесс, много технологических операций. Арматура убогая . Дырка посередине зачем ? Без дырки свая была бы прочнее !