STUDY ABOUT PYSICAL MODEL OF FLOOD PROPAGATION AROUND THE BUILDINGS DUE TO DAMBREAK

• Main Author: VITTA PRATIWI (NIM : 25007029); Pembimbing 1 :(Prof. Dr. Ir. M. Syahril B.K.; Pembimbing 2 : Ha
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/17515
• Institution: Institut Teknologi Bandung

Physical model of flood propagation around the buildings due to dam-break is interesting to be investigated, because the damage caused by dam-break are related with the loss of human lives and the damage of infrastructure that supports human life. Physical model that is arranged in the laboratory is expected to describe the real condition of flood propagation around the buildings due to dam-break. This physical model will be useful to assess whether the dam/small-dam feasible or not for surrounding dense buildings. This assessment can be used as consideration for the redesign dams/small-dam as a part of disaster mitigation. Experiment developed in this research was a physical model of flood propagation around the buildings due to dam-break around the buildings. Simulations of dam-break were obtained by using a door (gate) which opened suddenly, while the building models were simulated using wooden beams placed 3 m in front of the gate. The simulations were held with several configurations of the building, i.e.: without the building, 1 upright-position square building, 2 upright-position parallel square buildings , 4 upright-position parallel square buildings where two buildings are in front of two ones, and one tilt-position rectangular building, which all were being running in a fixed debit. <br /> <br /> <br /> The flow profiles as functions of velocity, water level and different energy level based on the building configuration are generated by the simulations. One upright-position square building configuration and one tilt-position rectangular building configuration generate greater wake affect than 2 upright-position parallel square buildings and 4 upright-position parallel square buildings configurations. In this research, the highest water level surface is yielded by 2 upright-position parallel square buildings configuration, so does the highest energy level. Energy level chart shows that the highest damage energy occurred on 5-th and 6-th second when water was returning after a backwater.