A centrifugal method for observing the uncoupled effects of void ratio and stress history
6th International Conference on Physical Modelling in Geotechnics - Physical Modelling in Geotechnics - 6th ICPMG '06, Hong Kong, Çin, 4 - 06 Ağustos 2006, cilt.2, ss.1269-1273, (Tam Metin Bildiri)
- Yayın Türü: Bildiri / Tam Metin Bildiri
- Cilt numarası: 2
- Basıldığı Şehir: Hong Kong
- Basıldığı Ülke: Çin
- Sayfa Sayıları: ss.1269-1273
- Boğaziçi Üniversitesi Adresli: Evet
Özet
This paper presents a new centrifugal testing method that would enable the researcher to observe the uncoupled effects of voids ratio and stress history on the undrained shear strength. The method combines a new material preparation technique with in-flight tests, such as mini-piezocone penetration test and vane shear test. The material preparation technique produces soil profiles of constant overconsolidation ratio and varying void ratios throughout the model profile, while the in-situ tests allow the researcher to examine the uncoupled effects of void ratio and overconsolidation ratio on the shear strength. This is called the "Descending Gravity Test". Although the proposed method requires careful planning and preparation, it saves a great deal of time and effort when compared to alternative methods of testing for observing the uncoupled effects of void ratio and stress history. © 2006 Taylor & Francis Group.