The Wall Street Journal has published an in-depth feature showing how contractors are building the foundation at the 100-story Waldorf Astoria supertall tower in Downtown Miami.
A technique called “deep soil mixing” is being used to make the onsite soil much stronger than normal. The process also seals out nearly all water.
The technique was previously mainly used in industrial projects such as oil refineries that needed extremely strong soil for heavy equipment.
Miami was the first city where the technique was used in non-industrial projects, a contractor for the Waldorf said in an interview. The technique has since spread around the globe, the report added.
The Waldorf Astoria Hotel & Residences will include 360 residential condo units and 205 hotel rooms.
A groundbreaking ceremony took place in November 2022.
