The Variation of the Angle of Internal Friction with Size Consist for Mechanically-Chipped Material - Year Two

Abstract

In order to improve aspects of materials handling in the rapid excavation process, research is underway to characterize the muck from mechanical tunnel boring machines. The specific project involves the correlation of the angle of internal friction, to the size consist, often termed gradation, of this mechanically-chipped material. Existing references demonstrate that this angle depends upon mineral type, and for a given mineral type upon size of particles. Particle shape is usually a function of mineralogical character and is not as important a parameter in influencing this angle.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1972
Accession Number
AD0755212

Entities

People

  • Donald E. Raab
  • Lee W. Saperstein

Organizations

  • Pennsylvania State University

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Cell Size
  • Chemical Analysis
  • Contracts
  • Earth Sciences
  • Engineering
  • Friction
  • Geochemistry
  • Geography
  • Internal Friction
  • Materials
  • Materials Handling
  • Materials Science
  • Mechanics
  • Particle Size
  • Rapid Excavation
  • Statistical Analysis
  • United States

Readers

  • Geotechnical Engineering.
  • Systems Analysis and Design