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Author: Kirk
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2003-05-23 |
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Thank you for your comments. I think I may have not been clear with my original question. I am analysing the temporary and long-term stability of an excavated slope with alternating layers of normally consolidated clays and sands with a relatively high groundwater level.
I am interested to know if it is appropriate to use both effective and total stresses in a single analysis. As an example: (Short term analysis): If a proposed excavation slope is 30 feet high, groundwater is at 10 feet, the upper 10 feet is sand (dry), the middle 10 feet is NC clay (Saturated), and the lower 10 feet is sand (saturated).
Can I use undrained strengths with total stresses in the clay layer, and at the same time use effective stresses for the lower saturated sand layer. The groundwater level used for calculating effective stresses in the lower sand would be at the top of the clay layer.
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Follow-up:
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Author:
M. Ramesh Kumar
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2003-05-27 |
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Yes of course. One should use relevant strength properties as per the merit of the case. In this case what ever you ae thinking to use, in my view is correct.
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Follow-up:
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Author:
Dave
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2003-09-17 |
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You can use the phi angle for sands in the total strees analysis. Typical for sands the phi angle in the total stress and effective stress are one in the same.
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Follow-up:
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Author:
Behnam Fakhri
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2005-01-19 |
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Hello dear Sir
My name is Behnam Fakhri. I am Iranian and I live in Tehran. I'm studying Geotechnics in the MS degree at the University of Tabriz, and in this semester I'm going to work on my thesis and I will be graduated in next summer. My subject of thesis is about interpretation of embankment dams settlements during construction period. That would be very kind of you to provide me with any sources such as articles, lectures, books or your friends whom are specialist in this field.
With best regards
Behnam fakhri
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Return
to subject 'Geotechnical design and analysis'
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Follow-ups:
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Subject:
Slope Stability Analysis 