Proceedings of the 3rd International Conference on Science in Engineering and Technology (ICOSIET 2024)

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Local Scouring around Piers of Palu I Bridge

Authors
Sri Warliawati1, Andi Rusdin2, *
1Tadulako University, Palu City, Central Sulawesi, Indonesia
2Tadulako University, Palu City, Central Sulawesi, Indonesia
*Corresponding author. Email: andi.rusdin@untad.ac.id
Corresponding Author
Andi Rusdin
Available Online 7 July 2025.
DOI
10.2991/978-94-6463-768-7_5How to use a DOI?
Keywords
Scouring; Hec-Ras; Palu I Bridge
Abstract

The purpose of this research is to know the river bed change and scour that occurs around bridge pier of Palu I. The method used in this research is simulation using HEC-RAS software. This simulation is done with river topography and geometric bridge as geometric input, average discharge as upstream input and bed slope as downstream input and sediment as bed gradation input. Based on simulation result, scour around the pier of Palu I bridge at the maximum discharge condition Q = 423,110 m3 / sec obtained by scour depth value equal to 1,91 m, average discharge Q = 83,659 m3 / sec obtained by scour depth value equal to 1,38 m and the minimum discharge Q = 9,190 m3 / sec obtained by scour depth value equal to 0,92 m. While the change in river bed on the long profile around the bridge Palu I bridge have a elevation increased from 2015 to 2017. The calculation of flow velocity and critical velocity shows a comparison of u/ucr > 1, indicating that the scour occurring around the bridge pier is accompanied by sediment transport from the bed material (live-bed scour).

Copyright
© 2025 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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Volume Title
Proceedings of the 3rd International Conference on Science in Engineering and Technology (ICOSIET 2024)
Series
Advances in Engineering Research
Publication Date
7 July 2025
ISBN
978-94-6463-768-7
ISSN
2352-5401
DOI
10.2991/978-94-6463-768-7_5How to use a DOI?
Copyright
© 2025 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

risenwbib
TY  - CONF
AU  - Sri Warliawati
AU  - Andi Rusdin
PY  - 2025
DA  - 2025/07/07
TI  - Local Scouring around Piers of Palu I Bridge
BT  - Proceedings of the 3rd International Conference on Science in Engineering and Technology (ICOSIET 2024)
PB  - Atlantis Press
SP  - 33
EP  - 42
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-768-7_5
DO  - 10.2991/978-94-6463-768-7_5
ID  - Warliawati2025
ER  -