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Examination of the Volumetric Strain Potential of Liquefied Soil with a Database of Laboratory Tests
The primary basis of the empirical methods for estimating post-liquefaction ground settlement is the laboratory data presented in Ishihara and Yoshimine (1992). These data are from one series of cyclic simple shear tests performed on one uniform clean sand reconstituted to three relative densities and tested at one effective confining stress. It is not clear if these data are applicable to other clean sands with other gradations, nonplastic silty sands, and nonplastic silts. A comprehensive database of post-liquefaction volumetric strain test results on nine additional clean sands, two gravels, three silty sands, and five silts is compiled to examine trends over a wider range of soils. The general trends of the larger database of clean sand test data provide the basis for a new relationship between post-liquefaction volumetric strain and the cyclic-induced maximum shear strain for clean sand. Relationships are then extended to nonplastic silty sand and nonplastic silt using relative density to characterize the volumetric strain potential of clean sand and nonplastic silty sand and silt.
Examination of the Volumetric Strain Potential of Liquefied Soil with a Database of Laboratory Tests
The primary basis of the empirical methods for estimating post-liquefaction ground settlement is the laboratory data presented in Ishihara and Yoshimine (1992). These data are from one series of cyclic simple shear tests performed on one uniform clean sand reconstituted to three relative densities and tested at one effective confining stress. It is not clear if these data are applicable to other clean sands with other gradations, nonplastic silty sands, and nonplastic silts. A comprehensive database of post-liquefaction volumetric strain test results on nine additional clean sands, two gravels, three silty sands, and five silts is compiled to examine trends over a wider range of soils. The general trends of the larger database of clean sand test data provide the basis for a new relationship between post-liquefaction volumetric strain and the cyclic-induced maximum shear strain for clean sand. Relationships are then extended to nonplastic silty sand and nonplastic silt using relative density to characterize the volumetric strain potential of clean sand and nonplastic silty sand and silt.
Examination of the Volumetric Strain Potential of Liquefied Soil with a Database of Laboratory Tests
Bray, Jonathan D. (author) / Olaya, Franklin R. (author)
Geo-Congress 2022 ; 2022 ; Charlotte, North Carolina
Geo-Congress 2022 ; 495-505
2022-03-17
Conference paper
Electronic Resource
English
Examination of the Volumetric Strain Potential of Liquefied Soil with a Database of Laboratory Tests
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