... underground structures is not clear. In this study, a series of experiments were conducted to confirm the behavior of liquefied sand near and between underground structures. Twelve experimental tests were conducted by changing the size of the gaps between the structures and weight of the embankment...

... aluminum shear deformation shear strain deformation pipe simple shear deformation inner strain kawabata rigid pipe earthquake flexible pipe shear dynamic behavior deflection ground shear deformation horizontal deflection mechanism displacement underground structure nylon...

.... KEY WORDS: DEM; buried structure; simple shear INTRODUCTION Large earthquakes occur frequently in Japan. A lot of agricultural land and facilities have been seriously damaged by such earthquakes. Especially, the underground structures has accounted for a large percentage of the total amount of damage...

... tests on spillway models focusing on weight, stiffness and cross sectional shape. The behavior of rectangular-shaped underground structures subjected to earthquake vibration is discussed. Koseki et al. (1997) performed shaking table tests to evaluate the safety factor against uplift for the underground...

... walls. The effect of jet grouting injected into the surrounding soils of a structure and cue- off wall and underground piled barrier constructed close to underground structure is proved to be effective to countermeasure liquefaction [1-5]. Those are thought to be similar to effect of diaphragm wall...

... ABSTRACT For checking of uplifting of underground structures due to liquefaction during the design of such structures in Japan, a formula based on the balance between the buoyancy acting on the structure from the liquefied soil and the dead load of the structure is used. The authors consider...

... the effective overburden loads. Koseki et al. (1997) performed shaking table tests to evaluate the safety factor against uplift for the underground structures based on the equilibrium of vertical force acting on the structures. Yuasa et al. (2000) clarified that the uplift of the underground structures...

...-Nambu Earthquake caused great damages to underground railway structures, which were made of RC with box sections and center pillars, and executed by cut and cover method. Bt these earthquake damages the function as station building was last. Aseismic design of underground structures is mainly made...