Simulasi Keruntuhan Bendungan Jatibarang Kota Semarang menggunakan Program HEC – RAS 2D

Wardana, Yoszy Kusuma (Institut Teknologi Sepuluh Nopember Surabaya)
Aziz, S. Kamilia (Institut Teknologi Sepuluh Nopember Surabaya)
Rahman Alam, Rizki Robbi (ITS)
Indriyani, Dwi (ITS)

Jurnal Aplikasi Teknik Sipil
Vol 22, No 2 (2024)

The collapse of the dam has a significant impact on the downstream area of the dam. These impacts can be minimized by conducting a dam collapse simulation. There are two main causes of dam collapse, namely overtopping and piping. From the hydrological analysis of the Jatibarang Dam, it is determined that overtopping is not a concern. Therefore, the dam collapse analysis utilizes the piping analysis method. Dam collapse modeling is carried out using the HEC-RAS 2D program with the Froehlich 2008 regression method, as the dam is of the embankment type. According to the simulation results, a dam collapse at the Jatibarang Dam would result in a flood affecting an area of 30.590 km2 downstream of the dam.