Lateral Spreading of Coastal Slopes
Lateral Spreading of Coastal Slopes
(OP)
The lateral spreading results calculated using the equation of Youd (2002, see ASCE 2002 October version) and other methods are quite different. A same CA coastal slope lateral spread using Youd’s equation say, is 100 feet, while using Newmark analysis or Markdisi & Seed chart resulted a lateral spreading of 5 to 30 feet. All my calculations have been checked by several peers and should have no problem in calculation itself. The big difference is from the methods I used.
I don't know which method is more reliable? Is there any good reference that could assist me for a more reliable lateral spreading calculation? What kind of equations/charts you guys used for such calculation? Any comments or info are appreciated.
It should be noted the Youd’s equation is regressed on many historical lateral spreading slopes worldwide.
I don't know which method is more reliable? Is there any good reference that could assist me for a more reliable lateral spreading calculation? What kind of equations/charts you guys used for such calculation? Any comments or info are appreciated.
It should be noted the Youd’s equation is regressed on many historical lateral spreading slopes worldwide.





RE: Lateral Spreading of Coastal Slopes
RE: Lateral Spreading of Coastal Slopes
RE: Lateral Spreading of Coastal Slopes
RE: Lateral Spreading of Coastal Slopes
Bartlett, S.F. and T.L. Youd (1992). Empirical analysis of horizontal ground displacement generated by liquefaction-induced lateral spreads. Technical report NCEER-92-0021, National Center for Earthquake Engineering Research, State University of New York, Buffalo.
Bartlett, S.F. and Youd, T.L. (1995). Empirical Prediction of Liquefaction-Induced Lateral Spread. Journal of Geotechnical Engineering, Vol. 121, No. 4, April 1995.
Youd, T.L.; Hansen, C.M. and Bartlett, S.F. (2002). Revised Multilinear Regression Equations for Prediction of Lateral Spread Displacement. Journal of Geotechnical and Geoenvironmental Engineering, Volume 128, No. 12, December 2002, pp. 1007-1017.
RE: Lateral Spreading of Coastal Slopes
RE: Lateral Spreading of Coastal Slopes
Youd, T.L.; Hansen, C.M. and Bartlett, S.F. (2002). Revised Multilinear Regression Equations for Prediction of Lateral Spread Displacement. Journal of Geotechnical and Geoenvironmental Engineering, Volume 128, No. 12, December 2002, pp. 1007-1017.
It is about the liquefaction spreading of slopes. I will read the paper again and come back to disscuss.
RE: Lateral Spreading of Coastal Slopes
Just interested in the background of the project,if this is possible.