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- W56825997 abstract "A study was undertaken to examine the strength parameter phi of backfills of retaining walls. The objectives were to evaluate the current practice employed by the Colorado Department of Transportation for determination of design strength parameters and to propose improved criteria for determination of design strength parameters. Laboratory tests were performed to compile the strength parameters and index properties of 100 soils. The compiled properties include gradation, Atterberg limits, maximum dry density and optimum water content, and internal friction angle. Analysis of the test results indicated that the current practice of assigning c=0 and phi=34 deg for Class-1 soils was indeed a conservative measure. To provide improved criteria for determination of the internal friction angle of soils without performing any shear tests, two statistical decision trees were established based on the index properties of the 100 soils. One decision tree was for soils with LL</=35 and PI</=6, and the other was for Class-1 soils. More data may be needed to validate or refine the decision trees for routine applications of the decision trees." @default.
- W56825997 created "2016-06-24" @default.
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- W56825997 date "2001-07-01" @default.
- W56825997 modified "2023-09-27" @default.
- W56825997 title "STRENGTH PARAMETERS OF BACKFILLS FOR DESIGN AND CONSTRUCTION OF RETAINING WALLS" @default.
- W56825997 hasPublicationYear "2001" @default.
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