Laboratory Investigation of Rock Cavity Reinforcement.
Final rept. 17 Sep 74-16 Mar 76,
STANFORD RESEARCH INST MENLO PARK CALIF
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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.
- Geology, Geochemistry and Mineralogy
- Civil Engineering