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Two full-scale experiments using controlled blasting were conducted in the Port of Tokachi on Hokkaido Island,Japan,to assess the behavior of piles and pipelines subjected to lateral spreading.Test specimens were extensivelyinstrumented with strain gauges to measure the distribution of moment during lateral spreading.This allowed us to computethe loading condition,as well as to conduct damage and performance assessments on the piles and pipelines.This paper presentsthe test results and discussions on the response of single piles and pipelines observed from the full-scale experiments.Basedon the test results,it can be concluded that using controlled blasting successfully liquefied the soil,and subsequently inducedlateral spreading.The movements of the single pile,as well as the transverse pipelines,were approximately the same as thefree field soil movement.Observed moment distribution of the single pile indicated that global translation of the liquefied soillayer provided insignificant force to the pile.In addition,the degree of fixity at the pile tip significantly affected the momentalong the pile as well as the pile head displacement.The pile with a higher degree of fixity at the pile tip had smaller pile headdisplacement but larger maximum moment.
Two full-scale experiments using controlled blasting were conducted in the Port of Tokachi on Hokkaido Island, Japan, to assess the behavior of piles and pipelines conducted to lateral spreading. Tests were extensively insulated with strain gauges to measure the distribution of moment during lateral spreading .This allowed us to computethe loading condition, as well as to conduct damage and performance assessments on the piles and pipelines.This paper presentsthe test results and discussions on the response of single piles and pipelines observed from the full-scale experiments. Basedon the test results, it can be said that using controlled blasting successfully liquefied the soil, and subsequently induced lateral spreading. The movements of the transverse pilelines, as well as the transverse pipelines, were approximately the same as the free field soil movement. Observed moment distribution of the single pile of that global translation of the liquefied soillayer provided insignificant force to the pile.In addition, the degree of fixity at the pile tip significantly affected the momentalong the pile as well as the pile head displacement. pile with a higher degree of fixity at the pile tip had smaller pile headdisplacement but larger than the moment .