In-situ tests and theoretical studies on the relations between looseness and deformation characteristics of jointed rock masses

1974 ◽  
Vol 11 (8) ◽  
pp. A161 ◽  
Author(s):  
R. Iida, ◽  
K. Hojo, ◽  
J. Harada,
Keyword(s):  
Jointed Rock ◽  
Theoretical Studies ◽  
Deformation Characteristics ◽  
Rock Masses ◽  
In Situ Tests ◽  
Jointed Rock Masses

Characterization of intensely jointed rock masses by means of in situ penetration tests

2014 ◽  
Vol 72 ◽  
pp. 92-99 ◽  
Author(s):  
R. Fernandez-Rodriguez ◽  
C. Gonzalez-Nicieza ◽  
F. Lopez-Gayarre ◽  
E. Amor-Herrera
Keyword(s):  
Jointed Rock ◽  
Rock Masses ◽  
Jointed Rock Masses ◽  
Penetration Tests

Triaxial Compression Experimental Study on Post-Peak Deformation Characteristics of Rock Masses with Persistent Joints

2014 ◽  
Vol 1030-1032 ◽  
pp. 1074-1077
Author(s):  
Yang Ping ◽  
Shu Chen Li
Keyword(s):  
Triaxial Compression ◽  
Jointed Rock ◽  
Peak Strain ◽  
Deformation Characteristics ◽  
Test Results ◽  
Rock Masses ◽  
Underground Excavations ◽  
Jointed Rock Masses ◽  
Confining Pressures ◽  
The Stability

Controlling the stability of surrounding rocks in underground excavations during in-depth resource development must be confronted with post-peak deformation and failure problems of jointed rock masses. This paper describes routine triaxial compression testing on standard cylinder specimen with persistent joints in different inclinations and under different confining pressures, and analyzes deformation characteristics of rock masses with persistent joints in different inclinations and under different confining pressures. Test results show that the peak strength, residual strength, and peak strain of the jointed specimen basically increase with increasing confining pressures but decrease with increasing joint inclinations. Test results well reflect that it is incorrect to evaluate deformation characteristics of jointed rock masses with continuum mechanics and research results provide a reference for the research on the stability of surrounding rocks in underground excavations.

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