EVALUASI DAN SIMULASI POLA OPERASI BENDUNG GERAK TEMPE PROVINSI SULAWESI SELATAN
Abstract
Abstrak: Bendung Gerak Tempe yang berada dihilir Danau Tempe diperuntukkan untuk menjaga elevasi muka air Danau Tempe. Elevasi muka air yang harus dipertahankan pada Danau Tempe adalah elevasi +5,00 m. Dari hasil evaluasi dan simulasi, bulan Januari sampai dengan bulan Agustus rata-rata muka air Danau Tempe dan Bendung Gerak adalah lebih tinggi dari elevasi +5,30 m, sehingga Pintu utama dan pintu navigasi dibuka penuh sehingga banjir tidak membahayakan daerah hulu Bendung Gerak Tempe. Sedangkan pada bulan September sampai dengan bulan Desember muka air pada Danau Tempe dan Bendung Gerak lebih rendah dari elevasi +5,00 m, sehingga muka air perlu dinaikkan sesuai yang harus dipertahankan yaitu pada elevasi +5,00 m, dengan jalan melakukan pengoperasian (penutupan) Pintu Utama maupun Pintu Navigasi.
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Kata Kunci: Bendung Gerak Tempe, Pintu Sorong, Danau Tempe, Banjir, Simulasi HEC-RAS
Abstract: Tempe Barrage is located on the downstream of Lake Tempe that it functioned to maintain water level of Lake Tempe. Water levels of Tempe Lake to be maintained at elevation of +5.00 m. The results of evaluation and simulation shown that from January to August the average water level of Lake Tempe and Tempe Barrage is higher than the elevation of +5,30 m, main gate and the navigation gate was fully opened to control flooding at upstream area of Tempe Lake. Furthermore, on September until December the water level on Tempe Lake and Tempe Barrage is lower than the elevation of +5,00 m, so that the water level should be increased to maintain the elevation of +5,00 m, by closed the  Main Gate and Navigation Gate.
Keyword: Tempe Barrage, Sluice Gate, Tempe Lake, Flood, HEC-RAS Simulation
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