Development and performance tests on NS-2 horizontal unidirectional centrifugal shaker

The dynamic centrifuge model test technology based on the geo-centrifugal shaking table system is the most effective and advanced research method and test technology for geotechnical engineering seismic problems. The principle is that the real dynamic response of the prototype under the actual stress condition can be reproduced by means of the centrifugal shaking table system installed on the centrifuge, which is used to restore the same stress level with the prototype. The key design technology and performance index of the NS-2 centrifugal shaker system are mainly introduced, which can simulate the horizontal unidirectional seismic response with effective load less than 500 kg under 80g. The performance index of the centrifugal shaker system is preliminarily verified by the dynamic centrifugal model tests on a rockfill dam with asphalt concrete core, which completely meets the practical needs of the project.