Seven Stories Down, Building Stays Up
Underneath a historic house near Mahane Yehuda market, engineers are digging seven stories down — without demolishing the building above. It's called top-down excavation, and the write-ups describe it as one of the most extensive uses of the technique ever attempted. This episode breaks down how you build the walls before you dig the hole, why every floor slab doubles as a structural brace, and why the method that protects the building is also the method that keeps the neighborhood listening to hammering for years. Then it gets harder: who decides how much noise a city's residents should…
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