... against vertically propagating horizontal seismic shear waves. Its primary goal is to assess the effectiveness of metabarriers (arrays of soil-embedded, unit-cell resonant metamaterials) in attenuating structural vibrations induced by real earthquake ground motions. Two dynamic centrifuge model tests were...

... fluid. This study details the development of an experimental setup that enables dewatering and rewetting soil deposits in-flight in a geotechnical centrifuge while the pore pressures/suctions and moisture contents are measured. Cone penetration tests and shear wave velocity measurements are also used...

...S. Shibayama; J. Izawa; A. Takahashi; T. Yamada; H. Nagatani; N. Ohbo; O. Kusakabe A comparative study of centrifuge dynamic shake table test and centrifuge pseudo-static shear box test was conducted on the same prototype model to experimentally examine applicability of the seismic displacement...

... to attempt to control these movements (e.g. top-down construction, use of stiff diaphragm walls). This paper discusses the methodology and practicalities of a series of centrifuge model tests designed to investigate the effect of deep basement construction. Two sets of experimental apparatus are described...

...J. Najser; E. Pooley; S.M. Springman Physical modelling of double porosity clay was carried out in a mini-centrifuge. These tests were performed as a preliminary study for modelling a case history from Northern Bohemia in the large geotechnical drum centrifuge. The main aim of these tests...

... of wet DM are not clearly understood. Conventionally, DM study is conducted in the field or using reduced-scaled models in 1g environment, which is either very limited (field results) or do not consider the effects of scale distortion (1g models). Using centrifuge modelling with appropriate scaling...

... financial and/or environmental impact. In this paper, the response of buried flexible pipelines crossing reverse fault ruptures has been examined using centrifuge modelling. A reverse fault is actuated in the 20^th-scale model at an initial fixed dip angle in the bedrock and the fault rupture...

...James A. Schneider; Barry M. Lehane; Fernando Schnaid Cone penetration tests (CPTs) performed under controlled conditions in a centrifuge can improve understanding and interpretation of CPT data obtained in the field. However, the cone diameter and cone penetration velocity employed...

... to studying the behaviour of a pile subjected to one dimensional lateral loading and the influence of changing the lateral direction of this loading has not been widely considered. This paper presents the results from a series of centrifuge tests which involve multi-stage loading of a pile, considering...

... geotechnical engineering centrifuge onboard device impact horizontal loading ...

...B.L. Amatya; J. Takemura; M.R.A. Khan; O. Kusakabe In this paper, the performance of natural clay barrier subjected to massive pile constructions is investigated using laboratory scale models on centrifuge. Model grounds comprising mainly either thick barrier of soft clay or stiff clay were made...

... the collapse of the clay’s pores through desiccation, with water being absorbed by the alcohol. Such desiccation can lead to cracking. Furthermore, gasoline compounds could be more easily transported in the alcohol rich pore fluid. A particular alcohol, Butanol, has been used in centrifuge experiments...

...Bruce L. Kutter; Daniel W. Wilson The goal of this paper is to promote the concept of testing centrifuge models that include soil-foundation-superstructure systems. Civil engineering research and practice is often compartmentalized, with structural engineers assuming very simplified foundation...

...Robert D. Stedtfeld; Glenn E. McCreery; Alan T. Stadler; Daphne L. Stoner; Paul Meakin A geotechnical centrifuge was used to investigate unsaturated multiphase fluid flow in synthetic fracture apertures under a variety of flow conditions. The geocentrifuge subjected the fluids to centrifugal forces...

...Dave White; Mark Randolph; Bart Thompson New techniques of image capture and analysis have been recently applied to geotechnical centrifuge modelling. These techniques improve the utility of the geotechnical centrifuge by increasing the detail and precision of deformation measurements. This paper...

.... With this objective, five different geotechnical institutes worked together in an interactive experimental research project on two-phase flow in granular material, within the framework of the NECER programme. The main aim of the programme was to investigate the potential for using a geotechnical centrifuge...

...E. Bilotta; R.N. Taylor The experimental set-up and some results of a series of centrifuge tests which were performed at City University are shown and discussed. Tests were carried out on a circular model tunnel in a clay ground and in undrained conditions. The basic idea being tested was whether...

...Tetsuo Tobita; Susumu Iai; K.M. Rollins Response of a group pile under static and dynamic lateral load is studied using a geotechnical centrifuge with an arm length of 2.5 m. The group pile consists of 9 piles in a 3 × 3 pattern with a spacing of three times a pile diameter center to center...

... to be of immense help. In order to overcome these limitations, a geotechnical centrifuge can be used for studying heat migration in the soil mass. To demonstrate the utility of a geotechnical centrifuge for such studies, standard grade sand compacted to different states has been chosen. Using a line heat source...

...Lei Fu; Xiangwu Zeng; J. Ludwig Figueroa Measuring soil properties during a centrifuge flight is important for the interpretation and analysis of experimental data. In recent years, progress has been made in developing devices for in-flight measurement. This paper describes the application...