Work

Detecting Pressure Waves during Earthquakes in an In-Service Pipeline System for Agricultural Irrigation using Numerical Analysis

Year: 2025

Type: article

Abstract: Seismic hydrodynamic pressure, which is burst water pressure fluctuation induced by earthquakes, is often observed in water pipelines. The earthquake damage includes detachment and damage to pneumatic valves in curved pipe sections, and we believe that the fluctuation of internal water pressure during earthquakes may have an effect on these phenomena. Since there have been few cases of actual measurements of seismic hydrodynamic pressure on pipelines, it has not been fully reflected in the design of agricultural pipelines and earthquake countermeasures at this time. In this study, we attempted to evaluate the relationship between acceleration and water pressure fluctuation by numerical simulation and frequency analysis using FFT for the measured seismic hydrodynamic pressure in an agricultural pipeline.

Source: e-Journal of Nondestructive Testing

DOI: 10.58286/31655

Authors: Taiki Hagiwara, Takashi Ohkubo, Kaori Hoshino

Institutions: Civil Engineering Research Institute for Cold Region, Public Works Research Institute

Language: English

Topic: Water Systems and Optimization

Subfield: Civil and Structural Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Industry, innovation and infrastructure

Open Access status: diamond

OpenAlex ID: W4414335742