Analisis Laju Sedimentasi di PLTU Suralaya Akibat Reklamasi Pengembangan Unit 9 dan Unit 10

Yanita, Irin (2018) Analisis Laju Sedimentasi di PLTU Suralaya Akibat Reklamasi Pengembangan Unit 9 dan Unit 10. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Kegiatan pembangunan akan memiliki dampak pada daerah di sekitarnya, baik berupa pembangunan pelindung pantai, fasilitas pantai maupun kegiatan reklamasi. Sehingga diperlukan perencanaan yang sesuai terutama untuk masalah yang akan ditimbulkan seperti sedimentasi, erosi, serta dampak lingkungan lainnya. Sehingga perencanaan teknis dan kelayakan reklamasi kawasan PLTU Suralaya terkait pengembangan unit 9 dan unit 10 perlu dilakukan agar kegiatan-kegiatan yang diperkirakan dapat mempengaruhi kualitas dan kondisi lingkungan sekitar dapat diantisipasi. Penelitian ini membandingkan hasil pemodelan hidrodinamika dan laju sedimentasi pada kondisi eksisting, alternatif 1 perencanaan reklamasi dan alternatif 2 perencanaan reklamasi akibat rencana pengembangan unit 9 dan unit 10 di PLTU Suralaya dengan menggunakan software Delft3D. Hasil pemodelan eksisting menunjukkan volume sedimentasi yang terjadi pada 4 area observasi secara berturut-turut adalah 462.16 m3, 61.16 m3, 7309.54 m3, 10912.0 m3. Sedangkan volume sedimentasi untuk kondisi alternatif 1 perencanaan reklamasi pada 4 area observasi secara berturut-turut adalah 2.90 m3, 93.35 m3, 5879.0 m3, 27683.70 m3. Dan volume sedimentasi untuk kondisi alternatif 2 perencanaan reklamasi pada 4 area observasi secara berturut-turut adalah 26.70 m3, 6.29 m3, 4808.42 m3, 19346.90 m3. Hasil pemodelan dari alternatif 1 dan alternatif 2 mengalami penurunan sedimentasi dan erosi sebesar 30% dan 25% dibandingkan dengan hasil pemodelan eksisting. Sehingga dapat disimpulkan bahwa reklamasi yang dilakukan di PLTU Suralaya berdasarkan perencanaan layout alternatif 1 maupun alternatif 2 tidak menimbulkan dampak negatif yang dapat mempengaruhi lingkungan di sekitar area reklamasi. ================================================================================================================== Development activities will have an impact to the surrounding areas, such as the construction of coastal protection, coastal facilities or reclamation activities. So appropriate planning is required, especially for problems that will be generated such as sedimentation, erosion, and other environmental impacts. Therefore, the technical planning and feasibility of PLTU Suralaya reclamation area related to the development of 9 and 10 units should be done so that activities expected to affect the quality and condition of the surrounding environment can be anticipated. This study compared the results of hydrodynamic modeling and sediment transport on existing conditions, alternatives 1 of reclamation design and alternative 2 of reclamation design due to the development plan of unit 9 and unit 10 in PLTU Suralaya using Delft3D software. The result of existing modeling indicates that volume of sedimentation in 4 observation areas in a row was 462.16 m3, 61.16 m3, 7309.54 m3, 10912.0 m3. While the volume of sedimentation for alternative 1 of reclamation design modeling in 4 observation areas were 2.90 m3, 93.35 m3, 5879.0 m3, 27683.70 m3, respectively. And sedimentation volume for alternative 2 of reclamation design modeling in 4 observation areas were 26.70 m3, 6.29 m3, 4808.42 m3, 19346.90 m3, respectively. The results of alternative 1 and alternative 2 modeling could reduce sedimentation and erosion amounted to 30% and 25% compared with the existing modeling results. So it can be concluded that the reclamation activities in PLTU Suralaya based on alternative layout design 1 or alternative layout design 2 did not cause a negative impact that will be affected environment around reclamation area.

Item Type: Thesis (Undergraduate)
Additional Information: RSKe 551.303 Yan a-1 3100018074991
Uncontrolled Keywords: Sediment Transport; Reclamation Plan; PLTU Suralaya
Subjects: Q Science > QE Geology > QE571 Sedimentation and deposition. Sediment transport.
T Technology > TA Engineering (General). Civil engineering (General) > TA749 Soil stabilization
Divisions: Faculty of Marine Technology (MARTECH) > Ocean Engineering > 38201-(S1) Undergraduate Thesis
Depositing User: Yanita Irin
Date Deposited: 03 Apr 2018 08:17
Last Modified: 21 Sep 2020 06:42
URI: http://repository.its.ac.id/id/eprint/50295

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