Our water table in a lot of Japan is way too high to make that practical without a lot of clever engineering to make it at all sustainable long-term. (I saw a reference to tokyo-2 elsewhere in the thread so I may be being wooshed by anime/manga references). And as I type this we get an earthquake, heh
Just idle curiosity but are basements and underground structures more common in areas high up in the mountains or way up in the north like Hokkaido?
In the American South we don’t usually have basements and they say it’s because you don’t need to dig down far to get past the frostline (whereas in our north they apparently have to dig down a fair distance to get to where the pipes wouldn’t freeze from below and once they’ve excavated that much you might as well get a basement anyway) and we also generally have high water tables that make basements dicey except in certain areas. My grandparents lived at the top of a hill on a plateau or ridge and unlike many people in the south they had a basement mostly cut into the slope of the hill (though it had a door leading out where the slope dropped down so maybe it doesn’t fully count), but even with the somewhat further down water tables there they constantly were running a dehumidifier in the basement due to the moisture and on occasion in heavy storms the walls would seep in water.
I’ve never known anyone who has a basement in Japan. Commercial buildings frequently have them, but they require a lot of maintenance, ventilation, sealing, pumping, etc.
Burying pipes below the frost line is definitely a thing, though.
I actually looked at properties butting against a hill/mountain to dig a root cellar, but it ultimately ended up being more trouble than it was worth.
Tokyo-3 should be built underground for the best disaster recovery preparedness
Our water table in a lot of Japan is way too high to make that practical without a lot of clever engineering to make it at all sustainable long-term. (I saw a reference to tokyo-2 elsewhere in the thread so I may be being wooshed by anime/manga references). And as I type this we get an earthquake, heh
Just idle curiosity but are basements and underground structures more common in areas high up in the mountains or way up in the north like Hokkaido?
In the American South we don’t usually have basements and they say it’s because you don’t need to dig down far to get past the frostline (whereas in our north they apparently have to dig down a fair distance to get to where the pipes wouldn’t freeze from below and once they’ve excavated that much you might as well get a basement anyway) and we also generally have high water tables that make basements dicey except in certain areas. My grandparents lived at the top of a hill on a plateau or ridge and unlike many people in the south they had a basement mostly cut into the slope of the hill (though it had a door leading out where the slope dropped down so maybe it doesn’t fully count), but even with the somewhat further down water tables there they constantly were running a dehumidifier in the basement due to the moisture and on occasion in heavy storms the walls would seep in water.
I’ve never known anyone who has a basement in Japan. Commercial buildings frequently have them, but they require a lot of maintenance, ventilation, sealing, pumping, etc.
Burying pipes below the frost line is definitely a thing, though.
I actually looked at properties butting against a hill/mountain to dig a root cellar, but it ultimately ended up being more trouble than it was worth.