• International Journal of Technology (IJTech)
  • Vol 7, No 1 (2016)

The Dynamic Response of Unsaturated Clean Sand at a Very Low Frequency

The Dynamic Response of Unsaturated Clean Sand at a Very Low Frequency

Title: The Dynamic Response of Unsaturated Clean Sand at a Very Low Frequency
Rini Kusumawardani, Kabul Basah Suryolelono, Bambang Suhendro, Ahmad Rifa’i

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Published at : 30 Jan 2016
Volume : IJtech Vol 7, No 1 (2016)
DOI : https://doi.org/10.14716/ijtech.v7i1.1163

Cite this article as:

Kusumawardani, R., Suryolelono, K.B., Suhendro, B., Rifa’i, A., 2016. The Dynamic Response of Unsaturated Clean Sand at a Very Low Frequency. International Journal of Technology. Volume 7(1), pp. 123-131



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Rini Kusumawardani Department of Civil Engineering, Faculty of Engineering, Universitas Negeri Semarang, Kampus Sekaran, Semarang 50229, Indonesia
Kabul Basah Suryolelono Department of Civil and Environmental Engineering, Faculty of Engineering, Universitas Gadjah Mada, Kampus UGM, Jl. Grafika No. 2 Yogyakarta 55581, Indonesia
Bambang Suhendro Department of Civil and Environmental Engineering, Faculty of Engineering, Universitas Gadjah Mada, Kampus UGM, Jl. Grafika No. 2 Yogyakarta 55581, Indonesia
Ahmad Rifa’i Department of Civil and Environmental Engineering, Faculty of Engineering, Universitas Gadjah Mada, Kampus UGM, Jl. Grafika No. 2 Yogyakarta 55581, Indonesia
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Abstract
The Dynamic Response of Unsaturated Clean Sand at a Very Low Frequency

A series of cyclic triaxial tests at very low frequency was carried out on unsaturated clean sand in order to quantitatively investigate the influence of the degree of saturation on dynamic response. The conventional triaxial testing apparatus, which is usually used on saturated soil, was employed to test the unsaturated soil with the additional pore air pressure controller. During the series of tests, four different degrees of saturation level (Sr = 55%, 70%, 85%, 98%) were applied to the soil specimen based on a single value of effective confining pressure (?’3). The results revealed that the application of cyclic loading at a very low frequency occurring continuously triggered the decrease of soil resistance. For degree saturation, Sr = 55% revealed that the resistance of soil was stronger in comparison to another level. Furthermore, the experimental results confirmed that applied cyclic loading induced a change in saturation level before and after testing. In addition, at a certain level of saturation, a phenomenon of settlements was likely to occur and the soil specimen then underwent liquefaction.

Unsaturated clean sand, Undrained cyclic triaxial testing, Cyclic shear strain

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