Jurnal Ilmiah Rekayasa Sipil
Vol 15 No 2 (2018): Edisi Oktober 2018

Analisis Kapasitas Penampang Sungai Batang Mahat Terhadap Besaran Debit Banjir Menggunakan Pendekatan Model Matematik

Dalrino Dalrino (Politeknik Negeri Padang)
Sadtim Sadtim (Politeknik Negeri Padang)
Hartati Hartati (Politeknik Negeri Padang)
Indra Agus (Politeknik Negeri Padang)



Article Info

Publish Date
31 Oct 2018

Abstract

Batang Mahat watershed has a total area of 772.87 km2 with a total length of the main rivers around 44.06 km. With the topographic condition on the upstream side was a mountainous terrain and steep slope relatively into downstream. The problem was can be classified as river siltation, narrowing of the river, and riverbank erosion that has caused flood and threaten a public facilities. Numerical simulations using the application of the HEC RAS model were conducted to determine the capability of the river storage capacity into various discharge values. The results of the analysis show that with the discharge condition Q2 there has been flood caused by the high surface elevation of water that was overtopping of the left and right embankments elevation at the upstream and midstream areas. The water surface elevation will increase with the increasing of flood discharge. River normalization efforts with additional depth and widening of river channel were recommended.

Copyrights © 2018






Journal Info

Abbrev

jirs

Publisher

Subject

Civil Engineering, Building, Construction & Architecture Transportation

Description

Jurnal Ilmiah Rekayasa Sipil (JIRS) dimaksudkan sebagai media kajian ilmiah hasil penelitian, pemikiran dan kajian analisis-kritis mengenai penelitian bidang rekayasa struktur, geoteknik, sumber daya air, transportasi dan manajemen rekayasa konstruksi. Sebagai bagian dari semangat menyebarluaskan ...