Mapping Liquefaction-Induced Ground Failure Potentialby T. Leslie Youd, (M.ASCE), Research Civ. Engr.; U.S. Geological Survey, Menlo Park, Calif.,
David M. Perkins, Geophysicist; U.S. Geological Survey, Menlo Park, Calif.,
Serial Information: Journal of the Geotechnical Engineering Division, 1978, Vol. 104, Issue 4, Pg. 433-446
Document Type: Journal Paper
Geologic and seismologic information is used in concert with criteria developed herein to make regional maps of liquefaction-induced ground failure potential. Two maps, a ground failure opportunity map and a ground failure susceptibility map, are combined to form the potential map. Ground failure opportunity occurs when seismic shaking is strong enough to produce liquefaction and ground failure in susceptible materials. A correlation between earthquake magnitude and maximum distance from energy source to possible liquefiable sites is used with maps of regional seismicity to prepare an opportunity map. The opportunity map has a probabilistic basis. Criteria relating liquefaction susceptibility to sediment type and setting are used with Quaternary geologic maps to derive the susceptibility map. Liquefaction-induced ground failure potential maps are useful for planning, zoning and decision making purposes. Additional geotechnical studies are required for liquefaction potential determinations at specific sites within the map units.
Subject Headings: Mapping | Failure analysis | Soil liquefaction | Seismic tests | Material failures | Seismic effects | Geology | Information management
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