Foundation

A Local Symptom of a Systemic Problem

For a long time, the standard in New York for excavating foundation pits for new-building construction has been sheeting and shoring. The pit is dug out, by hand or by machine, vertical piles installed at the perimeter and braced with diagonal rakers, and wood plank run between the piles to retain the adjacent earth. It’s …

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Inverted Arch Foundations Are Upside-Down Fun

Every once in a while during design, I remind myself of what various types of structural member do, as a way of thinking about what I need done. For example, the simplest definition of a “beam” that I can come up with is “a linear structure that carries load at right angles to its long …

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