hydrostatic pore pressure
hydrostatic pore pressure
(OP)
Hi everyone,
I am currently carrying out a study of the effect of rainfall on natural slopes for a dissertation, and the one outcome which I have considered is raising the GWL. I am studying various slope angles and heights and raising the GWL until a factor of safety of 1 is reached.
I have decided to choose zero pore pressure above GWL and hydrostatic below
I have a few disadvantages of these assumptions which I can discuss, I was wondering what everyone's view was on this in terms of disadvantages? and if anybody knows of similar studies?
Kind regards,
Anand
I am currently carrying out a study of the effect of rainfall on natural slopes for a dissertation, and the one outcome which I have considered is raising the GWL. I am studying various slope angles and heights and raising the GWL until a factor of safety of 1 is reached.
I have decided to choose zero pore pressure above GWL and hydrostatic below
I have a few disadvantages of these assumptions which I can discuss, I was wondering what everyone's view was on this in terms of disadvantages? and if anybody knows of similar studies?
Kind regards,
Anand





RE: hydrostatic pore pressure
1. The Influence of rainstorm pattern on shallow landside by Tung-Lin Tsai
2. http://www.icevirtuallibrary.com/docserver/fulltex...
3. http://rainfallthresholds.irpi.cnr.it/Article_MAP_...
4. http://www.nat-hazards-earth-syst-sci.net/12/829/2...
5. http://people.bu.edu/sergio/CV/papers%20pdf/2003-h...
6. Cornforth's Book - "Landslides in Practice" - Chapter 5 on groundwater and Chapter 9 on infinite slope analysis
7. Bromhead's Book - "The Stability of Slopes", 2nd Ed - Chapter/section 5.12 on infinite slope and Appendix E
8. Abramson et al Book - "Slope Stability and Stabilization Methods" - Chapter 3 on groundwater and Chapter 6 on analyses
I hope that the above gives you a start . . .
RE: hydrostatic pore pressure
Your assumptions can only be used for coherent materials , other than that cohesionless materials only fail if the angle Beta is higher than the angle of friction of the soil independent of its height . Loose granular materials can liquefy in the presence of water too.
Some clayey material suffer from chemical alteration as well as seepage forces that you must add to PWP .