PLANNING OF COASTAL PROTECTION BUILDING TYPE GROINS ON THE BEACH AIR BANGIS KEC. SEI BEREMAS WEST PASAMAN

Abstract

The presence of Air Bangis Nagari is a stretch of land on the West coast of West Sumatra
Province. The coastal areas of annihilation by the surge of sea water would have be bad for
area residents and reduced the country's territorial area. Handling is one of the efforts by the
security establishment in the form of Gróin beach.For the purposes of planning the building of
protective Beach in significant wave height using the method. This method is used in the
direction of constant wind conditions and occurs in a fairly long. To perform the calculation
above, require some form of data bathimetri data, data and 10 years of wind data in order to
support tidal calculations later. With the above data, obtained as a result of calculation of
waves, the dimensions of Gróin, and stability of Gróin. The calculation of the amount of
Gróin obtained with the views along the 640m as much as 8 pieces, spacing of Gróin i.e. 60
m. Length of Gróin i.e. 30 m 25 m in width and height 3, 3 m and 5 m high.On the planning
of natural stone material is used with a heavy stone for lining a two -layer 230Kg and
2300Kg, while the diameter of the stones for layer one 0, 83m3 and second layer 0, 086m3. .
Keyword : planning, building the coast,dimension