Pressuremeter Stress Relaxation Testing in a Permafrost Tunnel

by B. Ladanyi, Ecole Polytechnique, Montreal, Canada,
B. Touileb, Ecole Polytechnique, Montreal, Canada,
P. Huneault, Ecole Polytechnique, Montreal, Canada,



Document Type: Proceeding Paper

Part of: Geotechnical Engineering Congress—1991

Abstract: In the spring of 1988, a geotechnical testing program was carried out in the U.S. Army CRREL Permafrost Tunnel, located at Fox, near Fairbanks, Alaska. In all, some thirty cone penetrometer tests and twenty two pressuremeter tests were performed at the site. After describing the results of the load-controlled cone penetrometer tests in a previous paper (Ladanyi and Huneault, 1989), this paper covers only the results of strain-controlled pressuremeter relaxation tests and focuses on the related data processing and interpretation.

Subject Headings: Tunnels | Penetration tests | Permafrost | Relaxation (mechanics) | Load tests | Data processing | Measuring instruments | Load factors | North America | Alaska | United States | Fairbanks

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