Grid Technique for Measuring Ice Tunnel Deformation.

A new method for measuring deformation and closure of an ice tunnel was devised. This technique requires the installation of grid lines on a smooth section of tunnel wall. Although this necessitates the work of smoothing the wall, it has the significant advantage over other methods of making the mov...

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Bibliographic Details
Main Authors: Butkovich,T. R., Landauer,J. K.
Other Authors: SNOW ICE AND PERMAFROST RESEARCH ESTABLISHMENT WILMETTE ILL
Format: Text
Language:English
Published: 1959
Subjects:
Snow
Ice and Permafrost
Civil Engineering
(*ICE
DEFORMATION)
(*UNDERGROUND STRUCTURES
ICE)
PERIODIC VARIATIONS
MEASUREMENT
SHEAR STRESSES
STATISTICAL DATA
*TUNNELS
Ice
permafrost
Online Access:http://www.dtic.mil/docs/citations/AD0716666
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0716666
Description
Summary:A new method for measuring deformation and closure of an ice tunnel was devised. This technique requires the installation of grid lines on a smooth section of tunnel wall. Although this necessitates the work of smoothing the wall, it has the significant advantage over other methods of making the movement readily visible. (Author)

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