PERENCANAAN BOEZEM DAN POMPA DALAM PENANGANAN BANJIR DI KABUPATEN PASURUAN JAWA TIMUR

Studi kasus : Penanganan Banjir di Kabupaten Pasuruan Jawa Timur

Abstract

Flood is a water issues that effect to material and non material lost. While there are no correct solution, it will be made greater damage on next day. From many act on infrasucture sides like river normalisation, drainage system, and reservoir construction these called boezem. Boezem planning as an alternative flood disaster in Pasuruan District East Java province will accommodate water caused high rainfall on 50 years period 235,8669 m³/second. Planning of boezem calculated with high rainfall prediction on 50 years, and with discharge prediction on 50 years by rational method 235,8669 m³/second. And continued with flood routing calculation by HSS. Nakayasu on 50 years period. Based on calculation storage that can accommodate the water is 47973,89 m³. As complement facilities to supporting dewatering boezem pumping station and sluice gates result of boezem storage will be plan 48.000 m³. For dewatering purpose, boezem need submersible pump with maximum capacity around 6600 m³/hour as much 2 units, and 2 units too for sluice gates. Sluice gates and pumps will operated based on water level of boezem.