Open AccessExperimental study on the influence of draft relative due to wave transmission energy coefficient on hanging sheet pile breakwater
Author(s) -
Chairul Paotonan,
Sabaruddin Rahman,
Hasdinar Umar,
Taufiqur Rachman,
Achmad Yasir Baeda,
Mardiko Agustinus,
Alif Hidayat
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/619/1/012031
Subject(s) - breakwater , transmission coefficient , sheet pile , rubble , hull , pile , geotechnical engineering , wave height , reflection coefficient , transmission (telecommunications) , engineering , structural engineering , geology , marine engineering , electrical engineering , oceanography
Rubble mount breakwateris recently become the most widely used breakwater, consist both of natural and artificial stone. It required a large dimension of structure so that the investment costs become more and more expensive. One of the solutions that can be implemented is Hanging Sheet Pile breakwater. Unfortunately, the performance of this type of breakwater has not been known yet. Performance of this breakwater represented by wave energy transmission coefficient (KE t ). Therefore, this study aims to examine the effect of relative draft (s/d) and relative wave height (H/s) to KEt. This study conducted in Ocean Technology Laboratory of Universitas Hasanuddin. The parameters studied are structure dimensions and wave parameters. Wave parameters consist of wave height (H) and wave period (T), while the structure parameter is the draft structure (D). The result of this study shows that the greater value of both incident wave steepness (Hi/gT 2 ) and structure relative draft (s/d), then the smaller of KE t value will be achieved. Also, the greater relative H/s, the smaller KEt will be achieved. For all cases of study, the transmission coefficient ranges from 0.122 – 0.786.