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Naesliden Project: direct shear tests of filled and unfilled joints

Abstract

Joints from the Naesliden mine have been tested in a small field shear box and in a large shear rig. The large shear rig is described in detail, and its ability to test joints with an area of 600 mc/sup 2/ at a maximum normal stress of up to 20 MPa is emphasized. The stiffness and shear strength of the discontinuities in the Naesliden mine is presented. The values estimated at direct shear tests are compared with results from in situ measurements and tests on drillcores. The results show that the in situ measurements give lower values for the shear resistance than the direct shear tests. Estimation of the normal stiffness for joints in drill cores gave much higher stiffness than the estimations in the shear rig.
Authors:
Publication Date:
May 15, 1980
Product Type:
Conference
Report Number:
CONF-8006140-(Vol.2)
Reference Number:
EDB-81-013255
Resource Relation:
Conference: Conference on application of rock mechanics to cut-and-fill mining, Luleaa, Sweden, 1-3 Jun 1980; Related Information: In: Application of rock mechanics to cut-and-fill mining. Volume 2
Subject:
58 GEOSCIENCES; 42 ENGINEERING; JOINTS; SHEAR PROPERTIES; ELASTICITY; MINING; ROCKS; STRESS ANALYSIS; SWEDEN; EUROPE; MECHANICAL PROPERTIES; SCANDINAVIA; TENSILE PROPERTIES; WESTERN EUROPE; 580300* - Mineralogy, Petrology, & Rock Mechanics- (-1989); 422000 - Engineering- Mining & Underground Engineering- (1980-)
OSTI ID:
8489277
Research Organizations:
Univ. of Luleaa (Sweden)
Country of Origin:
Sweden
Language:
English
Submitting Site:
SWED
Size:
Pages: 119-138
Announcement Date:
Jan 01, 1981

Citation Formats

Ludvig, B. Naesliden Project: direct shear tests of filled and unfilled joints. Sweden: N. p., 1980. Web.
Ludvig, B. Naesliden Project: direct shear tests of filled and unfilled joints. Sweden.
Ludvig, B. 1980. "Naesliden Project: direct shear tests of filled and unfilled joints." Sweden.
@misc{etde_8489277,
title = {Naesliden Project: direct shear tests of filled and unfilled joints}
author = {Ludvig, B.}
abstractNote = {Joints from the Naesliden mine have been tested in a small field shear box and in a large shear rig. The large shear rig is described in detail, and its ability to test joints with an area of 600 mc/sup 2/ at a maximum normal stress of up to 20 MPa is emphasized. The stiffness and shear strength of the discontinuities in the Naesliden mine is presented. The values estimated at direct shear tests are compared with results from in situ measurements and tests on drillcores. The results show that the in situ measurements give lower values for the shear resistance than the direct shear tests. Estimation of the normal stiffness for joints in drill cores gave much higher stiffness than the estimations in the shear rig.}
place = {Sweden}
year = {1980}
month = {May}
}