Simulasi Monte Carlo Untuk Keandalan Stabilitas Hidrolik Batu Pelindung Struktur Breakwater Rubble Moound Di PLTU Sudimoro, Pacitan

Nugroho, Dony Kusuma (2021) Simulasi Monte Carlo Untuk Keandalan Stabilitas Hidrolik Batu Pelindung Struktur Breakwater Rubble Moound Di PLTU Sudimoro, Pacitan. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Dalam perancangan desain breakwater, salah satu metode yang dikembangkan ialah metode konvensional. Metode ini didasarkan pada konsep beban, dimana beban desain tidak boleh melebihi daya tahan (carrying capacity) struktur. Beban desain itu sendiri dapat diidentifikasi dengan menggunakan cara probabilistik, contohnya seperti mencari nilai rata-rata dari periode ulang gelombang 60 tahun sehingga diperlukan data gelombang yang nantinya akan diolah lebih lanjut. Sebagian besar formula desain yang tersedia hanya memberi hubungan antara karakteristik gelombang dan beberapa respons struktural, seperti run up, limpasan (overtopping), kerusakan lapisan pelindung (armour layer), dan lain-lain. Dalam Tugas Akhir ini, dilakukan analisa keandalan terhadap stabilitas hidraulik dengan simulasi Monte Carlo. Formula yang digunakan dalam perhitungan stabilitas hidraulik yaitu formula Hudson dan Van Der Meer. Hasil yang didapatkan adalah struktur breakwater yang ada di PLTU Pacitan sudah memenuhi kriteria desain stabilitas hidrolik sesuai dengan formula Hudson dan Van Der Meer dengan keandalan diatas 98,8% (Hudson), 95,12% (VDM). Untuk keandalan desain penulis dengan batu pelindung Dolos, BPPT Loc dan Tetrapod masing-masing memiliki nilai keandalan sebesar 94%, 94,03%, dan 94,1% (Hudson) serta 79,28%, 79,11%, dan 78,94% (VDM). ====================================================================================================== In calculating of breakwater design, one of the methods developed is conventional method. This method is based on the concept of load, where the design load should not exceed the carrying capacity of the structure. The design load itself can be identified using probabilistic means, such as looking for the average value of a 60-years wave return period so that wave data is needed that will be further processed. Most of the design formulas available only provide a link between wave characteristics and some structural responses, such as run up, runoff (overtopping), armor layer damage, etc. In this Thesis, a reliability analysis of hydraulic stability is performed with monte carlo simulation. The formulas used in hydraulic stability calculations are the Hudson and Van Der Meer formulas. The result is the breakwater structure in Pacitan Power Plant already meets the hydraulic stability design criteria in accordance with Hudson and Van Der Meer formula with reliability 98.8% (Hudson), 95.12% (VDM). For author design reliability with Dolos protective stones, BPPT Loc and Tetrapod have reliability values of 94%, 94.03%, and 94.1% (Hudson) and 79.28%, 79.11%, and 78.94% (VDM) respectively.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Simulasi Monte Carlo, keandalan breakwater, Rumus Van Der Meer, stabilitas hidrolik
Subjects: T Technology > TC Hydraulic engineering. Ocean engineering > TC203.5 Coastal engineering
T Technology > TC Hydraulic engineering. Ocean engineering > TC333 Breakwaters
Divisions: Faculty of Marine Technology (MARTECH) > Ocean Engineering > 38201-(S1) Undergraduate Thesis
Depositing User: Dony Kusuma Nugroho
Date Deposited: 25 Feb 2021 02:30
Last Modified: 25 Feb 2021 02:30
URI: https://repository.its.ac.id/id/eprint/82805

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