Journal of Natural Disaster Science

CHARACTERISTICS OF DEFORMATION IN A BURIED PIPELINE UNDER SINUSOIDAL GROUND MOTION

Nobuaki NISHIO
Manager, Pipeline Engineering Division, Research and Development Institute, Tokyo Gas Co., Ltd.
and
Masao SATAKE
Professor, Department of Civil Engineering, Tohoku University, Aoba, Aramaki, Sendai

(Received 24 Feb., 1983 and in revised form 15 Sept., 1983)

Abstract

Fundamental characteristics of the behavior of a buried pipeline during an earthquake were studied with a model of a beam on an elastic foundation to which sinusoidal ground motion was applied.

Comparison of our simulated data with data obtained from field observations of the effects of earthquakes on pipelines and tunnels proved that our model analysis could predict accurately the behavior of a buried pipeline in response to actual earthquakes.

This model should prove an effective tool for deciding what type of ground motion is to be studied in order to determine the principal causes of pipeline damage during an earthquake.

Key words

buried pipeline, earthquake, strain, elastic model