EXPERIMENT SIMULATION STUDY OF STRENGTH DEGRADATION OF ROCK JOINTS UNDER CYCLIC SHEAR LOADING
Abstract
Using cement mortar as similar material,joint specimens with three joint wall strengths and five asperity angles were prepared.Then a series of cyclic shear tests are performed at four normal stresses on the cyclic shear test apparatus.Tests results show that,shear stress-shear displacement curve has peak strength of each shear cycle,and the shear strength of joints gradually decrease with the cyclic number increase.The peak shear strength of...
Paper Details
Title
EXPERIMENT SIMULATION STUDY OF STRENGTH DEGRADATION OF ROCK JOINTS UNDER CYCLIC SHEAR LOADING
Published Date
Jan 1, 2011
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