Influence of crack fillings to rock uniaxial compression mechanical property and anchoring effect
Abstract：The uniaxial compression mechanical properties and anchoring effect of jointed rock mass with different crack fillings were analyzed.The influences of different crack fillings on jointed rock mass mechanical properties and anchoring effect were studied through similar material pieces uniaxial compression testing and numerical computation.The research results show that in a certain extent the compressive strength peak values increase with the increment of crack fillings elastic modulus;the less the differences between crack filling elastic modulus and that of matrix material,the better the jointed rock mass post-peak plasticity properties;there are little influences affected by crack fillings on bolted jointed rock mass post-peak plasticity properties;the more the differences between crack filling elastic modulus and that of matrix material,the more rapidly the stresses decrease after peak;the tensile stress begins to appear along the loading direction when the elastic modulus of crack filling is less than that of matrix material,the tensile stress peak values and distribution areas increase with the decrease of crack filling elastic modulus.
Keywords：jointed rock masssimilar materialfilled crackmechanical propertyanchoring effect
Publication Date：2012-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 1671-1676 )