TRAFFIC TESTS ON PORTAGE LAKE ICE.

A limited series of traffic tests were conducted on floating lake ice using a dual-wheel loaded to gross weights of 20,250; 28,250 and 36,250 lbs. Deflections were measured under static and moving loads on a continuous ice sheet and adjacent to a free edge. Representative samples of the ice were tes...

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Bibliographic Details
Main Authors: Stevens,H. W., Tizzard,W. J.
Other Authors: COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER N H
Format: Text
Language:English
Published: 1969
Subjects:
Snow
Ice and Permafrost
(*LAKES
ICE)
(*ICE
*TRAFFICABILITY)
STRUCTURAL PROPERTIES
SAMPLING
COLD WEATHER TESTS
LOADS(FORCES)
FLEXURAL STRENGTH
REACTION KINETICS
*FLOATING ICE
Ice
Ice Sheet
permafrost
Online Access:http://www.dtic.mil/docs/citations/AD0700130
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0700130
Description
Summary:A limited series of traffic tests were conducted on floating lake ice using a dual-wheel loaded to gross weights of 20,250; 28,250 and 36,250 lbs. Deflections were measured under static and moving loads on a continuous ice sheet and adjacent to a free edge. Representative samples of the ice were tested in unconfined compression, direct shear, flexure, and under a dynamic load (steady-state vibration). Crystal size and orientation were measured. An analysis of test results is presented using linear elastic theory and a method is proposed for estimating time variations of deflection. (Author)

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