Abstract
Hydro-mechanical behaviors of a saturated clay with various strain-rate and different stress histories are investigated through a series of consolidated-undrained and K0 consolidated undrained (K0CU) tests which were conducted on reconstituted specimens. The samples were taken from an excavation site in Macau and reconstituted in the laboratory to provide homogenous specimens. A total of four CU tests and four K0CU tests were undertaken on 38 mm diameter samples. The samples were saturated first by use back pressure saturation method (back pressure 200 kPa), after saturation, they were loaded to a confining stress 400 kPa and then unload to 50 kPa, 100 kPa, 200 kPa, 400 kPa (OCR = 8, 4, 2, 1) and finally were sheared at constant shear rate (0.1%/h, 1%/h, 10%/h) to failure. In this research the responses of marine clay under various strain rates under different OCRs on the strain-rate effects will be discussed, parameters for accounting the strain-rate effects on undrained shear strength will be proposed.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Similar content being viewed by others
References
Yeung, A., So, S.: Geotechnical engineering properties of Hong Kong marine clays. In: Lee, C.F., et al. (eds.) Soft Soil Engineering, pp. 695–700. CRC Press, Boca Raton (2001)
Yan, W., Ma, Y.: Geotechnical characterization of Macau marine deposits. Eng. Geol. 113(1), 62–69 (2010)
Yin, J.-H., Graham, J.: Elastic viscoplastic modelling of the time-dependent stress-strain behaviour of soils. Can. Geotech. J. 36(4), 736–745 (1999)
Whitman, R.V.: Stress-strain-time behavior of soil in one dimensional compression. DTIC Document (1963)
Graham, J., et al.: Time effects on the stress-strain behaviour of natural soft clays. Géotechnique 33(3), 327–340 (1983)
Sheahan, T.C., et al.: Rate-dependent undrained shear behavior of saturated clay. J. Geotech. Eng. 122(2), 99–108 (1996)
Kulhawy, F.H., Mayne, P.W.: Manual on estimating soil properties for foundation design. Electric Power Research Institude, Palo Alto, CA, USA; Cornell University, Ithaca, NY, USA. Geotechnical Engineering Group (1990)
Xuantao, S.: Experimental investigation on the consolidation and very small-strian stiffness properties of macau marine clay. University of Macau (2008)
Zhu, J.G.: Experimental study and elastic viscous-plastic modeling of the time-dependent stress-strain behavior of Hong Kong marine deposits. Ph.D. thesis. The Hong Kong Polytechnic University, Hong Kong (1999)
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2018 Springer Nature Singapore Pte Ltd.
About this paper
Cite this paper
Wu, S., Lok, T., Zhou, A. (2018). Undrained Behavior of Macau Marine Clay with Various Strain Rates and Different Stress Histories. In: Tran-Nguyen, HH., Wong, H., Ragueneau, F., Ha-Minh, C. (eds) Proceedings of the 4th Congrès International de Géotechnique - Ouvrages -Structures. CIGOS 2017. Lecture Notes in Civil Engineering , vol 8. Springer, Singapore. https://doi.org/10.1007/978-981-10-6713-6_81
Download citation
DOI: https://doi.org/10.1007/978-981-10-6713-6_81
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-10-6712-9
Online ISBN: 978-981-10-6713-6
eBook Packages: EngineeringEngineering (R0)