Cyclic Loading Liquefaction of Gravelly Soils

by Robert T. Wong, (M.ASCE), Principal Geotechnical Engineer; Kaiser Engrs., Oakland, Calif.,
Clarence K. Chan, (M.ASCE), Research Engr.; Inst. of Transportation and Traffic Engrg., Univ. of California, Berkeley, Calif.,
H. Bolton Seed, (M.ASCE), Prof. of Civ. Engrg.; Univ. of California, Berkeley, Calif.,

Serial Information: Journal of the Geotechnical Engineering Division, 1975, Vol. 101, Issue 6, Pg. 571-583

Document Type: Journal Paper


The results of cyclic loading tests on gravelly soils using a 12-in. diam triaxial test apparatus are described. The cyclic stresses required to cause —2.5% and —10% strain of saturated samples of gravelly soils are shown to be somewhat higher than those causing similar strains in sands. However, part of this increase may be due to the effects of membrane penetration and compliance in the test system. It is suggested that the superior field performance of gravelly soils over sands is probably due in large measure to the higher permeability of gravelly soils which will often permit sufficient drainage to occur to prevent the development of high pore-water pressures or liquefaction.

Subject Headings: Soil liquefaction | Permeability (soil) | Soil pressure | Load tests | Triaxial tests | Saturated soils | Cyclic loads | Sandy soils

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