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https://hdl.handle.net/11681/20797| Title: | Variation in angle of internal friction with confining pressure |
| Authors: | U.S. Army Engineer Nuclear Cratering Group. Banks, D. C. (Don Charles) MacIver, Bruce N. |
| Keywords: | Compression tests Craters Internal friction Noncohesive soils Cohesionless soils Nuclear craters Triaxial tests Slopes Soil mechanics Friction |
| Publisher: | U.S. Army Engineer Waterways Experiment Station. Engineer Research and Development Center (U.S.) |
| Description: | Miscellaneous Paper Abstract: This report summarizes published results of triaxial compression tests on cohesionless materials at high confining pressures. The data presented herein indicate a curved strength envelope, resulting in a decrease in angle of internal friction with increase in normal stress. An analysis of the data is made and a functional relation is presented for the Øₒ angle (angle of maximum stress obliquity) in terms of normal stress on the failure plane. The significance of a curved strength envelope is investigated for the stability of infinite, simple finite, and crater slopes composed of dry cohesionless material. Preliminary analyses for the case of a partially submerged crater slope are also presented. The analyses indicate that a deep failure surface may be more critical than a shallow surface when the phenomenon of a curved strength envelope is considered. Empirical stable slope data abstracted from a letter concerning canal excavation by nuclear cratering are presented in Appendix A. |
| Rights: | Approved for public release; distribution is unlimited. |
| URI: | http://hdl.handle.net/11681/20797 |
| Appears in Collections: | Miscellaneous Paper |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| MP-S-69-12.pdf | 6.51 MB | Adobe PDF |  View/Open |