caissons

Then in August 2006, a city inspector examining a key part of the foundation known as the caissons discovered the plot of land wasn't solid enough to support design.

Stalled Condo Projects 2007

The caissons were the foundations of the great work, quite literally and figuratively, as everyone working with Roebling in Brooklyn was aware.

The Great Bridge David McCullough 1972

The friction on caissons, which is usually given at from 200 to 600 lb. per sq. ft., is frequently assumed to be the same on piles 12 in. or less in diameter, whereas the pressures on these surfaces, as shown, are in no way comparable.

Pressure, Resistance, and Stability of Earth American Society of Civil Engineers: Transactions, Paper No. 1174, Volume LXX, December 1910 J. C. Meem

In recent times large bottomless cases, called caissons, have been used, with tubes attached to the roof, by which air can be forced into or out of the interior.

Scientific American Supplement, No. 417, December 29, 1883 Various

The tunnelers work in what are called caissons to which they have access through an air lock.

Marvels of Modern Science Paul Severing

For cases like this the system will have a range of watertight structures called caissons, which are based on the suction-pile technology used to emplace deep-sea moorings and foundations.

The Economist: Correspondent's diary 2010

In the suburbs, when the supply of soldiers gave out, there were sentry-boxes; when these dropped off, there were "caissons," or commissary wagons.

Stories in Light and Shadow Bret Harte 1869

For the next week, joined by a dozen Turkish cavalrymen, they trekked over rugged terrain, dodging marauding tribes and towing two metal boats on caissons drawn by camels.

Old Salt, Dead Sea Gerard Helferich 2011

Workers on the Metrorail project are starting construction of caissons and piers to support the foundation of the Tysons Central 123 Station on the northwest corner of the Route 123/Tysons Boulevard intersection.

The week ahead for traffic, transit 2010

Workers on the Metrorail project are starting construction of caissons and piers to support the foundation of the Tysons Central 123 Station on the northwest corner of the Route 123/Tysons Boulevard intersection.

The weekend and beyond 2010