- deep. The four main
types of
caisson are box
caisson, open
caisson,
pneumatic caisson and
monolithic caisson. A box
caisson is a
prefabricated concrete...
- Weldon's
caisson lock,
William Congreve in 1813
patented a "hydro-
pneumatic double balance lock" in
which two
adjacent locks containing pneumatic caissons could...
- to that
level as
water from the
river would rapidly seep in. So a
pneumatic caisson technique had to be used. As men were
working under pressures of up...
- Shoal, it was the
first lighthouse to be
built using a
pneumatic caisson. The
wooden caisson structure was
excavated to a
depth of 23 feet (7.0 m) below...
- water. In
April 1815 the
Regents Canal Company built a
double caisson lock (or "hydro-
pneumatic lock") at the site of the present-day
Hampstead Road Lock...
-
unsecured shaft, over 46
years of excavation. Historically, work in
pneumatic caissons underwater exposed workers to the risk of
decompression sickness upon...
-
installed using pneumatic caissons, a
pioneering application of
caisson technology in the
United States and, at the time, by far the
largest caissons ever built...
-
cylinders sunk by
mechanical means, that was a
precursor of the
later pneumatic caisson system of skys****er
foundation construction. The
seminal 1893–94...
-
Light and
historically Baltimore Harbor Lighthouse is a
privately owned caisson lighthouse in the
Chesapeake Bay in Maryland.
First lit in 1908, it sits...
- in time.
Unlike earlier caisson lights in the bay, the
foundation was
placed using the
pneumatic process, in
which the
caisson is kept
under pressure to...
