Accession Number:

AD0773861

Title:

Development and Applications of Theoretical Methods for Evaluating Stability of Openings in Rock

Descriptive Note:

Final rept. 14 Mar 1972-14 Dec 1973

Corporate Author:

WOODWARD-LUNDGREN AND ASSOCIATES OAKLAND CA

Personal Author(s):

• Chang, Chin-Yung
• Nair, Keshavan
• Singh, R. D.

Report Date:

1973-12-01

Pagination or Media Count:

208.0

Abstract:

The purposes of this study are 1 To incorporate into the finite element computer program for plane strain analyses, the capability to model and analyze a structural support schemes used in the construction and design of tunnels, and b excavation techniques and construction and excavation sequences in underground construction. 2 To evaluate the analytical method developed in 1 by a study of case histories. The report discusses the available information on excavation techniques, construction and excavation sequences, the mechanisms of ground support and the current design techniques for support schemes.

Descriptors:

• *EXCAVATION
• *ROCK
• COMPUTER PROGRAMS
• CONSTRUCTION
• REINFORCEMENT(STRUCTURES)
• ROCK MECHANICS
• SUPPORTS
• TUNNELS
• WALLS

Subject Categories:

• Geology, Geochemistry and Mineralogy
• Civil Engineering

Distribution Statement:

APPROVED FOR PUBLIC RELEASE