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Title:

METHOD OF COMPUTING A ROCK REINFORCEMENT SYSTEM WHICH IS STRUCTURALLY EQUIVALENT TO AN INTERNAL SUPPORT SYSTEM

Accession Number:

00164954

Record Type:

Component

Availability:

Linda Hall Library

5109 Cherry Street
Kansas City, MO 64110-2498 USA

Abstract:

A rock reinforcement system may be computed which is structurally equivalent to an internal support system. The amount of reinforcement required depends on the ability of the reinforcement to strengthen the rock mass. Rock reinforcement increases the shear strength properties of a rock mass by increasing the confining pressure in the rock adjacent to the opening. The amount of shear strength increase is a function of the friction angle of the rock mass. A large angle of friction results in a substantial increase in allowable rock stress even though the increase in rock mass confinement due to the rock reinforcement might be quite small. The equivalent pattern of rock reinforcement ultimately selected will depend on the size of the tunnel and established guidelines for length and spacing of reinforcement.

Supplemental Notes:

Proceedings of 16th Symposium on Rock Mechanics, University of Minnesota, Minneapolis, September 22-24, 1975.

Report Numbers:

Proceeding

Corporate Authors:

American Society of Civil Engineers

345 East 47th Street
New York, NY 10017-2398 USA

Authors:

Bischoff, J A
Smart, J D

Pagination:

p. 179-184

Publication Date:

1977

Features:

References (7)

Uncontrolled Terms:

Old TRIS Terms:

Subject Areas:

Bridges and other structures; Construction; Geotechnology; Highways

Source Agency:

Engineering Index

Source Data:

EIX770900466

Files:

TRIS

Created Date:

May 18 1978 12:00AM