Penetration Resistance of Soils. Report 2. Gamma-Ray Techniques for Nondestructive Measurements of Soil Density and Density Profile

Abstract

A study was conducted to determine the feasibility of using measurements made with a multichannel gamma-ray spectrometer and a cobalt 60 radiation source for accurately determining soil density and resolving the density profile of layers. Measurements were first made on aluminum and steel plates to establish a standard reference for comparing soil density. Two samples of air-dry sand were constructed at different densities to a depth of approximately 120 and 125 cm in a pit 51.82 m long and 3.54 m wide. Measurements were made at depth intervals of 12.7 cm in each of six access holes located in the samples. The densities determined were compared with densities determined by nonnuclear means.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1970
Accession Number
AD0715980

Entities

People

  • Albert N. Williamson Jr.

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Background Radiation
  • Data Analysis
  • Dead Time
  • Detectors
  • Electrons
  • Energy Levels
  • Gamma Rays
  • Materials
  • Measurement
  • Moisture Content
  • Nuclear Radiation
  • Physical Properties
  • Pulse Height Analyzers
  • Radiation
  • Scattering
  • Test And Evaluation

Fields of Study

  • Physics

Readers

  • Fluid Dynamics.
  • Geotechnical Engineering.
  • Nuclear and Radiation Engineering.