1) 毛利栄征,中島賢二郎:大口径可とう性パイプの変形
と沈下について,農業土木学会論文集,第142号,pp.918,1989.
2) 東田 淳,三笠正人:開削工法で埋設された剛性管に
MECHANICAL BEHAVIOR OF SHALLOWLY BURIED PIPELINE USING
GEOGRIDS DURING SHEET-PILE EXTRACTION
Mayu TODA, Noritake MIYAZAKI, Yutaka SAWADA and Toshinori KAWABATA
Sheet-piles are used in order to install pipelines. Sheet-pile extraction causes pipe damages such as excessive
deformation and cracks. In recent years, it is required that pipelines be buried shallowly because of reduction of
construction cost. There are few studies on the influence of construction on the shallowly buried pipe using geogrid. In
the present study, model experiments were conducted in order to clarify the influence of sheet-pile extraction on
shallowly buried pipe using geogrid. Test results showed that the pipe deformation was small in the case of using
geogrid and gravel. However, the reduction of bedding due to the sheet-pile extraction may cause the concentration of
earth pressure on the bottom of the pipe.
KEYWORDS: Buried Pipeline, Geogrid, Sheet-pile, Model Experiment
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