Accession Number:

ADA009343

Title:

Stick-Slip of Lightly Loaded Rock. Part 1. Dilatancy and Shearing Behavior of Assemblages of Rods. Part 2

Descriptive Note:

Final rept. 1 Sep 1970-31 Aug 1973

Corporate Author:

IOWA STATE UNIV AMES ENGINEERING RESEARCH INST

Report Date:

1975-02-04

Pagination or Media Count:

211.0

Abstract:

The report consists of two sections which are closely interrelated in their significance for the stability of rock masses, e.g. rock slides, underground blast caverns, etc. Part 1 deals with stick-slip of selected rocks at different temperatures and under normal stresses up to 20 kgsq cm. Stick-slip was found to dominate the sliding behavior of paired roughly ground surfaces of limestone, basalt, and quartzite. Part 2 of this report presents results from a simple but carefully controlled laboratory experiment to study the relation between dilatancy, sliding friction, and resistance to deformation of densely packed assemblages of steel of Teflon rods.

Subject Categories:

  • Geology, Geochemistry and Mineralogy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE