Dynamic and static measurements of small strain moduli of toyoura sand

Authors

  • Manuel Builes Universidad De Antioquia
  • Edwin García Universidad de Antioquia
  • Carlos Alberto Riveros Universidad de Antioquia

Keywords:

triaxial test, small strain cyclic loading, primary wave velocity, secondary wave velocity, accelerometer, bender element, Young’s modulus, shear modulus

Abstract


A series of triaxial tests were performed on specimens made of Toyoura sand having different dry densities. Very small unloading/ reloading cycles were applied to obtain “static” Young’s modulus. Furthermore, as the “dynamic” measurements, two types of wave propagation techniques were applied; one using Bender elements, and the other one using piezoelectric actuators to excite primary and secondary waves. Based on these static and dynamic measurements, we discuss the following aspects: 1) the difference among the three types of dynamic measurements, 2) the relationships between the dynamic and static measurement results and 3) the effects of stress stateinduced anisotropy and dry densities of the specimens.  

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Author Biographies

Manuel Builes, Universidad De Antioquia

Grupo GIGA, Facultad de Ingeniería

Edwin García, Universidad de Antioquia

Grupo GIGA, Facultad de Ingeniería

Carlos Alberto Riveros, Universidad de Antioquia

Grupo GIGA, Facultad de Ingeniería

References

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{10] F. Tatsuoka, S. Shibuya. “Deformation characteristics of soils and rocks from field and laboratory tests” Keynote Lecture for Session no. 1 Proc. of the 9thAsian Regional Conf. on SMFE. Bangkok. Vol. 2. 1991. pp.101-170.

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Published

2014-02-28

How to Cite

Builes, M., García, E., & Riveros, C. A. (2014). Dynamic and static measurements of small strain moduli of toyoura sand. Revista Facultad De Ingeniería Universidad De Antioquia, (43), 86–101. Retrieved from https://revistas.udea.edu.co/index.php/ingenieria/article/view/18670