Accession Number : AD0716666

Title :   Grid Technique for Measuring Ice Tunnel Deformation.

Descriptive Note : Special rept.,

Corporate Author : SNOW ICE AND PERMAFROST RESEARCH ESTABLISHMENT WILMETTE ILL

Personal Author(s) : Butkovich,T. R. ; Landauer,J. K.

Report Date : 26 JAN 1959

Pagination or Media Count : 8

Abstract : 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)

Descriptors :   (*ICE, DEFORMATION), (*UNDERGROUND STRUCTURES, ICE), PERIODIC VARIATIONS, MEASUREMENT, SHEAR STRESSES, STATISTICAL DATA

Subject Categories : Snow, Ice and Permafrost
      Civil Engineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE