I have no idea how plausibly, but the book 2312 has a city on one of the hot inner planets that gets squeezed along a rail using thermal expansion. Even if that

I have no idea how plausibly, but the book 2312 has a city on one of the hot inner planets that gets squeezed along a rail using thermal expansion. Even if that doesnt work, it seems like the sort of thing you could engineer around, just a more extreme version of the engineering we already do to handle thermal expansion.