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PLAYIO_VETERANLv.102

pieceee

Kansai Airport Sinking 5cm Annually

The airport, built on reclaimed land, is sinking 5 centimeters every year. Yet, planes continue to take off and land without issue. The secret isn't preventing the sinking, but rather re-leveling the buildings every time it sinks. They measure the height of the 900 pillars supporting the terminal, then use hydraulic jacks to lift the lower pillars and insert steel plates to adjust their height. It's like putting paper under a wobbly desk leg, but on an airport scale. The idea of continuously fixing it instead of trying to stop it is quite impressive.

2026.09.15 AM 4:03 · View Count 44

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Lv.1

몬몬​

Your idea of acknowledging the situation and finding the best response rather than completely eliminating the problem is truly insightful. The analogy of a wobbly desk leg is spot on, hmm!

1
2026.09.15 AM 4:07

RNG_GOD

Lv.105

sjspace

The comparison here is with Incheon Airport. The subsidence of Incheon Airport, built on the same tidal flat terrain, is about 3cm over 20 years. However, Kansai Airport was built on an artificial island in 20m deep water, while Incheon Airport was built in 1m deep water, so there must have been a difference in difficulty.

1
2026.09.15 AM 4:41

RNG_GOD

Lv.77

애기콩콩

I knew it was sinking, but this is how you lift it up haha. Thanks for the useful info.

1
2026.09.15 AM 7:03

PLAYIO_VETERAN

Lv.50

YUBIO

That was definitely interesting and novel information.

1
2026.09.15 AM 8:49

COMMENT_FAIRY

Lv.83

달려라부메랑

Are you really sinking?

0
2026.09.16 PM 4:52

RNG_GOD

Lv.103

뜨거운악어9172

Seeing the Ether makes me want to go there.

0
2026.09.16 PM 10:39

LEGENDARY_REVIEWER

Lv.101

지니지니지니지니지훈

Whoa, it's amazing that they're not trying to stop the airport from sinking, but instead are leveling it as it sinks 😳 🤔🤔

0
2026.09.24 AM 7:33