Electronic Measurements in Rock and Tunnel Liner Structures

Abstract

On Project 3.2, measurements were made of transient particle velocity and displacement, relative displacement, and liner and rock strain, on 24 of the 43 tunnel liner sections used in the tunnel liner response studies (Project 3.1) on Shot Hard Hat. Of the 108 instrumentation channels installed, only about 45% of the gage channels produced useful records. Some of these records were partial, being terminated by cable breakage before completion. The records obtained show peak values satisfactorily close to the set ranges; no records were lost due to over ranging or under-ranging. No detailed interpretation of these data has been attempted on this project; they will be used primarily in conjunction with other data obtained by Project 3.1. One general conclusion drawn from these data is that the majority of the structures showed maximum loading nearer the transverse than the radial direction.

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Document Details

Document Type
Technical Report
Publication Date
Jul 19, 1963
Accession Number
AD0341958

Entities

People

  • L. M. Swift

Organizations

  • SRI International

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Blast
  • Construction
  • Department Of Defense
  • Displacement
  • Electronic Equipment
  • Gages
  • Instrumentation
  • Law
  • Materials
  • Measurement
  • Particles
  • Radial Stress
  • Recording Systems
  • Strain Gages
  • Stresses
  • Transducers
  • Transverse

Fields of Study

  • Engineering

Readers

  • Business Analytics
  • Explosive Engineering.

Technology Areas

  • Microelectronics