Accession Number:

ADA043398

Title:

Laboratory Investigation of Rock Cavity Reinforcement.

Descriptive Note:

Final rept. 17 Sep 74-16 Mar 76,

Corporate Author:

STANFORD RESEARCH INST MENLO PARK CALIF

Personal Author(s):

Report Date:

1976-04-01

Pagination or Media Count:

222.0

Abstract:

The response of monocoque direct-contact and backpacked liners as hardened buried structures was studied through experiments on scale models 58-inch diameter tunnel, guided by analyses of structure and rock response assuming a Mohr-Coulomb rock strength characterization. Two loading machines were modified to extend their capabilities and improve their performance. The modifications to the machines produced improvements in tunnel access, in sealing between vertical and lateral pressure chambers, in dynamic pressure pulses, and in general test procedures.

Subject Categories:

  • Geology, Geochemistry and Mineralogy
  • Civil Engineering
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE