Break-blade

A mole is a construction of the type Digue or thrown (mole), established in front of a port, a shelter to protect it from the sea at the time of bad weather.

The breeze blades is not, contrary to a dam or a pier, obligatorily accessible from the ground. But a pier or a dam is frequently used as mole.

The maritime engineers often use the " term; digue" to indicate a break-blade.

A break-blade generally consists of a " dam with talus" who is not other than a riprap monticule covered with a carapace made up of (very) large blocks of stones or concrete able to resist the attacks of the Houle. A certain number of artificial blocks out of concrete exist. The first artificial block out of concrete, Tétrapode, was invented in 1950 by the Laboratory From the Dauphine of Hydraulics in Grenoble, France (now Sogreah).

Certain moles consist of boxes prefabricated out of concrete posed on a monticule of foundation arranged on sea-bed. These boxes often have vertical walls and are sometimes arranged with an aim of dissipating the energy of the swell, for example by the presence of holes as in the " Jarlan" box;.

In naval architecture, a break-blade is generally an additional sheet in form of V assembled on the bridge strong and intended to break the blades when they go up on the bridge. The break-blade has a role of Déflecteur.

See too

Maritime security

External bonds

+ Wipo
+ Concrete To bush-hammer Innovations

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