PENGARUH KEMIRINGAN DAN SUSUNAN KANTONG TERHADAP STABILITAS PEMECAH GELOMBANG TIPE KANTONG PASIR BENTUK BANTAL
ABSTRACT: Coast abration
causes destructions on buildings in the seashore, like citizen houses and other
infrastructures. One of the abration prevention methods
is by using
breakwater structure,but type
of Rubble Mound
Breakwater (RMB) becomes
uneconomical when it is used in isolated seashores, which that has limited
infrastructure and material sources, mainly stones. One of the methods to
overcome this problems is by using sandbags as the breakwater. Many researcher have
been conducted research on the sandbag stabilities. Nevertheless, those
researchs is limited on analysis about the influence of
the freeboard, roughness
of slope and
the heel structure
and the sauges
sandbag stabilities.Therefore, this research
is analyzed about
the influence of
configuration and slope
change on the
sandbag breakwater stability type
pillow. It is an experimental 2-D physical model done in the Wave tank of
Environmental and Sea Energy Laboratory in Marine Engineering - FTK ITS
Surabaya. The range of wave height between 10cm to 22cm, the period is
constant, 1.5 second. The number of wave was
1200 waves. The
model height is 50cm,
and the freeboard
is 0cm. The
Model variasi reviewal are slope and configuration of sand bags. The
result of the research shows that the damage level of the model caused by
forces is depends
upon slope of
model and configuration
of sand bags.Specifically, the sandbag
stability is influenced by the
cross section of configuration sandbag and length of moment. As result of the
slope change, the stability of SK1 has been increased up to 28.13%, while as a
result of configuration change, SK1 to SK2,
caused the stability has been increased 4.17%.
Keyword: stability , sandbag breakwater,configuration
of sandbag, pillow sandbag
Penulis: Ferry Fatnanta , Widi
Agus Pratikto, Wahyudi Citrosiswoyo, Haryo Dwito Armono
Kode Jurnal: jptsipildd080001
