Hariyoni (2012) Studi Akresi, Abrasi dan Sistim Pengendalian di Pantai Tanjungwangi Kabupaten Banyuwangi. Magister thesis, Universitas Brawijaya.
Abstract
Pantai Tanjungwangi terletak di sebelah timur Kota Banyuwangi dibeberapa titik dekat dengan daerah pemukiman penduduk, persawahan, fasilitas umum, dan perkantoran pemerintah terjadi kemunduran garis pantai. Daerah sekitar pantai tidak terdapat pelindung alam pantai seperti hutan mangruf maupun pelindung buatan misalnya revetmen, jalan raya yang menghubungkan antara banyuwangi dan Situbondo juga mengalami kemunduran garis pantai. Tujuan dari studi ini adalah untuk mengetahui gelombang rencana dan distribusi arah gelombang di sepanjang Pantai Tanjungwangi; untuk mengetahui angkutan sedimen dan stabilitas pantai yang terjadi; untuk mendapatkan solusi penanggulangan secara teknis dan untuk menentukan dimensi dan stabilitas bangunan yang sesuai. Akresi, abrasi yang terjadi di Pantai Tanjungwangi di analisis dengan beberapa metode, antara lain: menganalisa pembangkitan gelombang untuk menentukan tinggi dan periode gelombang yang terjadi berdasarkan faktor tegangan angin terkoreksi; menganalisa panjang fecth; menganalisa mawar gelombang; menganalisa data gelombang signifikan tahunan dengan menggunakan Metode JONSWAP; menganalisa gelombang rencana untuk menentukan tinggi gelombang dengan kala ulang tertentu yang memadai bagi keperluan perencanaan; menganalisa refraksi gelombang dan gelombang pecah yang terjadi; menganalisa angkutan sedimen pantai dengan metode fluks energi; menganalisa stabilitas bangunan dan analisa biaya bangunan. Dari hasil analisa dan pembahasan dapat diambil beberapa kesimpulan sebagai berikut: gelombang dominan Pantai Tanjungwangi berasal dari arah selatan sebesar 51,505 % yang dibangkitkan oleh angin, namun gelombang maksimum berasal dari arah timur laut yaitu 12,596 %, sedangkan gelombang rencana dengan kala ulang 25 tahun yaitu H maks = 5,057 m, H 10 = 3,454 m; besarnya angkutan sedimen sesuai dengan analisis data adalah 13.267, 552 m 3 /tahun (abrasi), 812,239 m 3 /tahun (akresi), sedangkan perhitungan berdasarkan pengukuran di lapangan diperoleh angkutan sedimen sebesar 13.294,955 m 3 /tahun (abrasi), 808,018 m 3 /tahun (akresi). Pantai Tanjungwangi terjadi abrasi dan revetmen tumpukan batu alam yang sesuai diterapkan di lokasi studi dengan dimensi sebagai berikut: tinggi bangunan 5 m, lebar pondasi 7 m, panjang kaki bangunan 6 m, tinggi kaki bangunan 2 m.
English Abstract
Tanjungwangi Coastal is located at east of Banyuwangi Town. In some points are near with population resident, field, public facilities, and governmental offices have been declined of line coastal. surrounding coastal is not existing natural coastal inhibitor as like mangrove forest and artificial inhibitor, such as revetment, connecting road between Banyuwangi and Situbondo has also experienced coastal line declining. This study is aimed to know wave forecast and wave direction distribution at throughout Tanjungwangi Coastal; to know sediment carrying and coastal stability have been occurring; to obtain mitigation solution technically and to determine dimension and stability of suitable construction. Accretion, abrasion occurred at Tanjungwangi Coastal were analyzed by some methods, such as to analyze: wave arising to determine wave high and period occurring based on corrected wind tension factor; fetch length; wave rose; annual significant wave data by using JONSWAP Method; forecast wave for determining wave high by certain adequate re-words for planning needs, wave refraction and fraction wave occurred; coastal sediment carrying by energy flukes method; construction stability and to analyze construction cost. From result analysis and discussion can be obtained some conclusions such as: dominant wave of Coastal Tanjungwangi is derived from south direction as much 51,505% that has been rose by a wind, however maximum wave has been derived from east direction as much 12,596%, while forecasting wave with re-words 25 year is H max = 5.057 m, H 10 = 3,454 m, great sediment carrying is accordance with data analysis as much 13,267,552 m 3 /year (abrasion), 812,239 m 3 /year (accretion), while calculation based on measurement at field was obtained sediment carrying as much 13,294,955 m 3 /year (abration), 808,018 m 3 /year (accretion). Tanjungwangi Coastal has been occurred abrasion and leveling natural stone revetment as suitable with applied at location of study with dimensions as follows: 5 m high construction, 7 m larger foundation, 6 m construction leg length, and 2 m construction leg high.
| Item Type: | Thesis (Magister) |
|---|---|
| Identification Number: | TES/627.58/HAR/s/041202549 |
| Subjects: | 600 Technology (Applied sciences) > 627 Hydraulic engineering > 627.5 Reclamations, Irrigation, related topics |
| Divisions: | S2/S3 > Magister Teknik Elektro, Fakultas Teknik |
| Depositing User: | Endro Setyobudi |
| Date Deposited: | 19 Oct 2012 11:19 |
| Last Modified: | 19 Oct 2012 11:19 |
| URI: | http://repository.ub.ac.id/id/eprint/158830 |
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