Pengaruh Kecepatan Aliran Terhadap Gerusan pada Sekat Kanal dengan Saluran 5 Meter

Abstract

Canal blocking is a water-retaining structure built with the aim of reducing flow velocity and retaining air in
the canal and the surrounding area. The canal blocking to be constructed must meet stability requirements
which are one of the important requirements to guarantee the life and main function of the canal blocking
building. However, so far data and information regarding effective canal blocking (having a stable structure
and long service life) is still very limited. This study aims to determine the effect of airflow velocity on scour
in the physical model of canal blocking. The research method used is the observation method. The research
location was carried out in Palangka Raya City with a research time of one month from March 25 2022 to
April 23 2022. Data analysis was carried out using graphs to determine the effect of flow velocity on scour
values. The results showed the flow velocity used v1= 0.019 m/s and v2= 0.028 m/s greatly affected the scour
value that occurred. The greater the velocity of the water flow used with the upstream water level of 23 cm
(fixed) and the downstream water level of 6.6 cm and 23 cm along with the longer testing time, the greater the
value of the scour depth.