Author(s)

K. Tokida, Y. Ninomiya & T. Azuma

Abstract

Liquefaction potential and uplift deformation of underground structure K. Tokida, Y. Ninomiya, T. Azuma Ground Vibration Division, Public Works Research Institute, Ministry of Construction, 1 Asahi Tsukuba-shi, Japan ABSTRACT The uplift deformation characteristics of such underground structures as a common utility duct due to soil liquefaction are discussed experimentally based on shaking table tests using a two-dimensional ground model and an underground structure model with a rectangular section. In this paper, from the view point that the uplift deformation of an underground structure is caused by the movement of liquefied soils from the surrounding ground to below the underground structure, two factors: the thickness of a liquefiable layer below the underground structure model and the width of the underground structure model are aimed as important parameters controlling the movement of liquefied soils and as a result influencing the uplift deformation of the u

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