THE INTERRELATIONSHIP BETWEEN PENETROMETER PARAMETERS APPLICABLE TO MOBILITY IN SNOW – APPLICATION OF CONE, VANE AND VANE-CONE TO PREDICT STRESS-STRAIN BEHAVIOUR OF UNSATURATED COHESIVE SOIL

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Authors
  1. Yong, R.N.
  2. Mohamed, A.M.O.
  3. Liao, C.L.
Corporate Authors
Defence Research Establishment Suffield, Ralston ALTA (CAN);McGill Univ, Montreal QUE (CAN) Geotechnical Research Centre
Abstract
The prediction of wheel-soil interaction for off-road vehicles traversing soft, mostly unsaturated terrain is the prime concern in mobility. Through simple and portable in-situ testing devices have been adopted for such purposes, their prediction capabilities are limited due to the inability of providing a representative stress-strain behaviour of the supporting soil. In this study, appropriate stress-strain relationships of the soil can be derived by the proposed mathematical model with input data provided by penetration and torsion tests with either cone and vane or vane-cone field devices. A laboratory experimental program was designed to 1) provide reproduceable samples, 2) determine soil physical and engineeering properties, 3) perform penetration and torsion tests with cone, vane and vane-cone, and 4) perform model-footing tests. This experimental program also investigated tip-size and strain-rate effects, amongst others, on soil-resistance measurement.
Report Number
DRES-CR-94-09 — Contractor Report
Date of publication
01 Mar 1994
Number of Pages
371
DSTKIM No
94-02944
CANDIS No
142070
Format(s):
Document Image stored on Optical Disk;Originator's fiche received by DSIS

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