THE RESPONSE OF SOILS TO DYNAMIC LOADINGS. EFFECTIVE STRESS VERSUS STRENGTH. SATURATED FAT CLAY

Abstract

Results of a laboratory investigation of the influence of rate of strain on the effective stress strain behavior of a remolded, saturated clay are discussed. Triaxial compression tests were performed on 1-1/2 dia. x 3 in. long specimens at rates of strain ranging from 1% in 1/2 minute to 1% in 1440 minutes. Two extreme preshear stress histories are represented, i.e. normally consolidated and heavily overconsolidated. Pore pressures were measured in all tests at the sample midheight employing a porous probe, electric pressure transducer system. In addition, base pore pressures were measured in selected tests, also with an electric pressure transducer. The results indicate an increase in strength in the fast tests of about 12% over the slow tests in the normally consolidated and about 20% in the overconsolidated tests. The pore water pressure at failure in both normally consolidated and overconsolidated samples was lower in the fast tests.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1963
Accession Number
AD0409523

Entities

People

  • Archie M. Richardson Jr.

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Air Platforms
  • Materials and Manufacturing Processes
  • Weapons Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Back Pressure
  • Birds
  • Civil Engineering
  • Friction
  • Laboratory Tests
  • Load Cells
  • Measurement
  • Mechanics
  • Modulus Of Elasticity
  • Pore Pressure
  • Pressure Distribution
  • Pressure Gradients
  • Pressure Measurement
  • Pressure Transducers
  • Soil Mechanics
  • Transducers

Readers

  • Geotechnical Engineering.
  • Mechanical Engineering/Mechanics of Materials.