@conference {bnh-8345, title = {Geotechnical seismic isolation system based on rubber-soil mixtures: analytical modelling, experimental testing and field measurement}, booktitle = {20th International Conference on Soil Mechanics and Geotechnical Engineering}, year = {2022}, month = {06/2022}, address = {Sydney}, abstract = {

The innovative concept of geotechnical seismic isolation (GSI) with the use of a continuous layer of low-modulus
rubber-soil mixtures (RSM) surrounding the foundation of the structure has attracted considerable research interest globally in the
past decade. This paper presents a summary of the recent works completed by the authors. This includes an equivalent-linear lumped-parameter analytical model for explaining the isolation mechanism of the GSI system. On the other hand, the effectiveness of the isolation system has been validated by geotechnical centrifuge modelling. Its dynamic soil-structure interaction behaviour has also
been demonstrated by using the Euroeseistest-EuroProteas model structure (http://euroseisdb.civil.auth.gr). It has been confirmed
that the controlled stiffness and damping of the GSI-RSM foundation layer can reduce the rocking stiffness, thereby enhances the
seismic isolation capability, whilst without having large permanent deformations due to the higher elasticity of the RSM material.
Finally, a series of shaking table tests have also been conducted to examine the effectiveness of GSI-RSM system on isolating
electrical transformers. Generally, it was found in these studies that a 30\% to 60\% reduction of structural demand can be achieved.

}, keywords = {augmented rocking, geotechnical seismic isolation, rubber-soil mixtures, soil-structure interaction, waste tyre}, url = {https://www.researchgate.net/profile/Dimitris-Pitilakis/publication/361275994_20ICSMGE-Full-Paper-final/links/62a840f06886635d5cd89d75/20ICSMGE-Full-Paper-final.pdf}, author = {Hing-Ho Tsang and Kyriazis Pitilakis and Sheng Li and Wen-Yi Hung} }