TRANSIENT DAM-BREAK WAVE LOADING ON PIPELINES NEAR SLOPING BED

Behnaz Ghodoosipour,Kotaro Imura,Hidenori Ishii,Ioan Nistor,Tomoya Shibayama,Tomoyuki Takabatake,Go Hamano,Abdolmajid Mohammadian

doi:10.9753/icce.v36v.waves.55

Behnaz Ghodoosipour, Kotaro Imura + Show 6 more

Open Access

https://doi.org/10.9753/icce.v36v.waves.55

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Abstract

Extreme events such as tsunamis and floods have caused massive damaging consequences to nearshore infrastructures. This has been more significant recently due to a changing climate. Transmission pipelines are among such infrastructures and need to be protected against potential extreme events. Design of pipelines requires comprehensive understanding of the exerting hydrodynamic forces. Such pipelines are often placed on sloping beds in coastal areas. Therefore, to address the uncertainties and parameters involved in extreme hydrodynamic loading on pipelines near sloping bed, an experimental program was conducted at the hydraulic laboratory in WASEDA University, Tokyo, Japan. This study is a complement of another experimental research conducted by Ghodoosipour et al., 2019a and b to investigate loadings from tsunami-like dam-break waves on pipelines located on flat bed.Recorded Presentation from the vICCE (YouTube Link): https://youtu.be/y6nSfe34SAw

Highlights

Extreme events such as tsunamis and floods have caused massive damaging consequences to nearshore infrastructures
Different slope levels as well as various flow conditions were tested to investigate their influence on exerted forces
Findings from this study helps in characterizing the effect of different slope levels on induced loadings

Summary

Introduction

Extreme events such as tsunamis and floods have caused massive damaging consequences to nearshore infrastructures. This has been more significant recently due to a changing climate. Design of pipelines requires comprehensive understanding of the exerting hydrodynamic forces. Such pipelines are often placed on sloping beds in coastal areas. To address the uncertainties and parameters involved in extreme hydrodynamic loading on pipelines near sloping bed, an experimental program was conducted at the hydraulic laboratory in WASEDA University, Tokyo, Japan. This study is a complement of another experimental research conducted by Ghodoosipour et al, 2019a & b to investigate loadings from tsunami-like dam-break waves on pipelines located on flat bed. Both research experiments are in line with the American Society of Civil Engineers, ASCE7 recommendation for studying tsunami loading on pipelines

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