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Khairul, Anita
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Civil Engineering, Building, Construction & Architecture Engineering Transportation

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PENELUSURAN BANJIR KOLAM RETENSI SUSUKAN KECAMATAN UNGARAN TIMUR KABUPATEN SEMARANG Khairul, Anita; Fatmawati, Diyah; Pujiastuti, Ratih; Apriyanto, Totok
Jurnal Teknik Indonesia Vol 4, No 2 (2023): JTI (Jurnal Teknik Indonesia)
Publisher : Universitas Darul Ulum Islamic Centre Sudirman GUPPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61689/jti.v4i2.493

Abstract

Floods are natural disasters that occur in an area due to the inability of drainage channels or many rivers, in overcoming the flooding problem that occurred a problem that occurred in, Susukan District, East Ungaran District, the Semarang Regency Government has taken action by constructing a retention pond. This research aims to analyze the capacity of the retention pond.This research required data: topographic data, rainfall data and geotechnical soil data. The analysis carried river watershed and hygrological analysis which includes: determining average rainfall, planned flood discharge, flood routing and calculating the stability of the spillway building.From the results of the hydrological analysis, the flood discharge value obtained using the gamma I unit hydrograph method for a 5-year return period was 21,53 m3/second. In flood investigations, an outflow value of 21.11 m3/second was obtained with an overflow height of 1,65 m.
Co-Authors FATMAWATI, DIYAH Ratih Pujiastuti Totok Apriyanto, Totok