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Accropode (1981) The Accropode is a single-layer artificial armour unit developed by Sogreah in 1981. Accropode concrete armour units are applied in a single layer. Ecopode (1996) The Ecopode armour unit with a rock-like appearance was developed by Sogreah to enhance the natural appearance of concrete armourings above low water level.
Tetrapods on Graciosa Island, Azores Tetrapods in Latvia Tetrapods protecting a marina on Crete, Greece.. A tetrapod is a form of wave-dissipating concrete block used to prevent erosion caused by weather and longshore drift, primarily to enforce coastal structures such as seawalls and breakwaters.
Large Xblocs (8.0 m 3 or 280 cu ft) on a trial placement area. An Xbloc is a wave-dissipating concrete block (or "armour unit") designed to protect shores, harbour walls, seawalls, breakwaters and other coastal structures from the direct impact of incoming waves.
Riprap causes morphological changes in the riverbeds they surround. One such change is the reduction of sediment settlement in the river channel, which can lead to scouring of the river bed as well as coarser sediment particles.
The project was launched in 2002, at a cost of NT$700 million (US$21.9 million). [4] The armour of the CM-32 provides protection of 7.62 mm AP rounds, while the frontal arc withstands 12.7 mm AP rounds. NBC protection and fire suppression systems are also standard.
It was to have had three times the speed in water and about twice the armor of the AAV, as well as superior firepower. The vehicle was to be deployed in 2015; [5] however, on 6 January 2011, Secretary of Defense Robert Gates recommended the EFV program be canceled. [6] [7] The program, which was projected to cost $15 billion, had already cost ...
Tetrapods used to protect a seawall Large interlocked Xblocs (8.0 m 3 or 280 cu ft) in a trial placement. A wave-dissipating concrete block is a naturally or manually interlocking concrete structure designed and employed to minimize the effects of wave action upon shores and shoreline structures, such as quays and jetties.
From July 9–11, 2013, 25 Marines gathered at Marine Corps Base Quantico, Virginia for a Warfighter Requirements Workshop to review the team's capabilities analysis and determine the value of various capabilities. 30 requirements with cost and weight implications were considered "tradable," including armament and armor protection. Safety and ...