Experimental Study of Local Scouring on Porous Concrete of Bridge Pier

Lidya, Dea and Tallar, Robby Yussac (2023) Experimental Study of Local Scouring on Porous Concrete of Bridge Pier. In: ICE-SMARTECH 2023 International Conference on Smart Technology, 17-19 July 2023, Bandung. (Unpublished)

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Abstract

Bridge is one of transportation infrastructures that helps to develop the economy growth of country. In addition, infrastructure development must pay attention to existing environmental conditions. Porous concrete allows water to flow through it, therefore it becomes a popular material for a variety of applications, including in stormwater management. Lack of previous research has used porous concrete in bridge piers. The main objective of this research is to study and analyze the depth of local scouring and scouring patterns that occur around the bridge piers by using two scenarios (porous concrete and solid concrete). This study has an average flow velocity of 0.07m/sec within clear water scour condition. As the results, in porous concrete scenario, the smallest percent difference (16.86%) between empirical and experimental analysis is by using Blench-Inglis I formula. While in solid concrete scenario, the smallest percent difference (4.18%) between empirical and experimental analysis by using Blench-Inglis II formula. The local scouring results that occurs due to solid concrete scenario is 5.5 cm while the local scouring that occurs due to porous concrete scenario is 7 cm. It resulted that the percentage difference is about 5%.

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