Material Protection for Citarum River-Bed by Local Scour used What-If Analysis
- 10.2991/aer.k.211106.077How to use a DOI?
- Bridge pier; Citarum river; Local scouring; Scour protection; What-if analysis
This paper presents scour protection measures at the Citarum riverbed due to obstruction of the Batujajar bridge piers used what-if analysis. Various studies have been carried out and developed for more than 30 decades, showing that the scour phenomenon causes many cases of bridge collapse in the world. The change in flow pattern caused a horseshoe vortex flow triggers local scour. What-if analysis helps in problem seeking, problem analysis, and problem-solving. Based on previous research, the data collected were maximum flood discharge (Nakayasu HSS method), topographic maps and engineering geological maps, soil property index in the Citarum river, and data on the Batujajar bridge. Topographic surveys and geoelectric tests were also carried out. This research used flexible applicative approaches carried out according to conditions in the field. The mathematical modeling with the HEC-RAS application was a choice for predicting the scour depth. The scour simulation was carried out under existing conditions and with alternative riverbed material protections (protective plates, gabions, and pile caps). The minimum scours depth was achieved in the simulation using a gabion of 0.57 mm. It could minimize scour of depth until 1.73 m from existing conditions. This research can contribute to scour analysis, especially to minimized hazards on bridges crossing rivers.
- © 2021 The Authors. Published by Atlantis Press International B.V.
- Open Access
- This is an open access article under the CC BY-NC license.
Cite this article
TY - CONF AU - Nita Widia Khairinnisa Rustawa AU - Djuwadi Djuwadi AU - Bambang Setio Budianto PY - 2021 DA - 2021/11/23 TI - Material Protection for Citarum River-Bed by Local Scour used What-If Analysis BT - Proceedings of the 2nd International Seminar of Science and Applied Technology (ISSAT 2021) PB - Atlantis Press SP - 491 EP - 497 SN - 2352-5401 UR - https://doi.org/10.2991/aer.k.211106.077 DO - 10.2991/aer.k.211106.077 ID - Rustawa2021 ER -