Analisis Keandalan Stabilitas Hidrolik dari Lapisan Pelindung Utama Struktur Breakwater Rubble Mound: Studi Kasus Breakwater PLTU Sudimoro, Pacitan

Agustian, Muariff (2018) Analisis Keandalan Stabilitas Hidrolik dari Lapisan Pelindung Utama Struktur Breakwater Rubble Mound: Studi Kasus Breakwater PLTU Sudimoro, Pacitan. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Dalam perancangan struktur pemecah gelombang, dikenal istilah perancangan secara konvensional. Perancangan secara konvensional adalah perancangan yang didasarkan pada konsep beban desain tidak boleh melebihi daya tahan (carrying capacity) struktur. Beban desain biasanya didefinisikan secara probabilistik sebagai nilai karakteristik dari beban, misalnya nilai rata-rata (mean) dari periode ulang gelombang 100 tahun. Pemilihan beban gelombang ini sering dilakukan tanpa ada pertimbangan adanya ketidakpastian (uncertainity) yang terjadi. Dalam kebanyakan kasus, beban yang menyebabkan dampak atau kerusakan desain tertentu tidak diberikan sebagai kekuatan atau deformasi utama. Hal ini karena 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. Tugas akhir ini mengevaluasi keadaan pemecah gelombang PLTU Sudimoro berdasar kriteria desain stabilitas hidrolik minimal serta menganalisis keandalan struktur tersebut dengan menggunakan metode simulasi Monte Carlo. Hasil yang didapatkan adalah bangunan pemecah gelombang yang ada di PLTU Pacitan sudah memenuhi kriteria desain stabilitas hidrolik serta memiliki nilai keandalan yang sangat tinggi yaitu 98.14%. Untuk desain I (dolos), desain II (tetrapod) dan desain III (BPPT-Loc) masing-masing memiliki nilai keandalan sebesar 97.12%, 97.03%, dan 97.05%. ==================================================================================================== In the design of the breakwater structures, the conventional design terms are known. Conventional design is a design based on the concept of design load that should not exceed the carrying capacity of the structure. Design loads are usually defined probabilistically as the characteristic value of the load, for example the mean value of the 100-year wave return period. Selection of this wave load is often done without any consideration of the uncertainty that occurred. In most cases, loads that cause the impact or damage of a design are not given as major forces or deformations. This is because most of the available design formulas only relate the wave characteristics and some structural responses, such as run up, overtopping, armor layer damage, and others. This thesis evaluates the state of the Sudimoro steam power plant’s breakwater based on the minimum hydraulic stability design criteria as well as analyzing the reliability of the structure by using Monte Carlo simulation method. The results obtained are the existing breakwater at Sudimoro already meet the design criteria of hydraulic stability and has a very high reliability value of 98.14%. Design I (dolos), design II (tetrapod) and design III (BPPT-Loc) each have reliability value of 97.13%, 97.03%, and 97.05%.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Perancangan konvensional; stabilitas hidrolik; keandalan; Simulasi Monte Carlo;
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA169 Reliability (Engineering)
T Technology > TA Engineering (General). Civil engineering (General) > TA645 Structural analysis (Engineering)
T Technology > TC Hydraulic engineering. Ocean engineering > TC1680 Offshore structures
T Technology > TC Hydraulic engineering. Ocean engineering > TC205 Harbors--Design and construction.
T Technology > TC Hydraulic engineering. Ocean engineering > TC357 Harbor Engineering. Piers, quays, and wharves
Divisions: Faculty of Marine Technology (MARTECH) > Ocean Engineering > 38201-(S1) Undergraduate Thesis
Depositing User: Muariff Agustian
Date Deposited: 09 Aug 2021 22:56
Last Modified: 09 Aug 2021 22:56
URI: https://repository.its.ac.id/id/eprint/53851

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