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Seismic response of soil deposits underlain by sloping rock boundaries
Dezfulian, Houshang; Seed, H. Bolton
UCB/EERC-69/09, Earthquake Engineering Research Center, University of California, Berkeley, 1969-08, 43 pages (450/D451/1969)
If a soil deposit is underlain by a sloping rock boundary, it cannot be treated as a semi-infinite layer and more complex analytical procedures are required. Ground motions in the portion of the deposit underlain by the sloping boundary will vary considerably from those in the adjacent section of the deposit where the rock surface is horizontal. It is the purpose of this paper to investigate the nature of these variations, to investigate the rock slopes for which semi-infinite layer theories can no longer provide sufficiently accurate determinations of ground response, and to develop procedures for evaluating the influence of sloping rock boundaries on the ground motions developed in adjacent soil deposits during earthquakes.
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