EVALUATION OF RANGE OF HORIZONTAL STRESSES OF UNDERGROUND ROCK MASS BY USING ROCK FRACTURE STRENGTH
Abstract
The vertical stress of underground rock mass can be evaluated by depth times the average unit weight of overlying rock mass.However,horizontal stress is difficult to estimate.Based on the fact that rock fracture toughness is a constant,two-collinear crack model is applied to establish the stability condition of fractured rock mass.From this stability condition,the range of horizontal stress can be evaluated;and the evaluation result agrees well...
Paper Details
Title
EVALUATION OF RANGE OF HORIZONTAL STRESSES OF UNDERGROUND ROCK MASS BY USING ROCK FRACTURE STRENGTH
Published Date
Jan 1, 2012
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