Resonant Column Experimental Research of Dynamic Behaviors of Soft Rock in Nuclear Power Plant Site of Anhui Jiyang
The dynamic shear modulus of soft rock in Jiyang,Anhui Province decreases nonlinearly with the increase of dynamic shear strain,while the damping ratio increases nonlinearly with the increase of shear strain,and the variation amplitude is the largest when γd=1 × 10-4.The maximum dynamic shear modulus is significantly affected by the consolidation pressure.As the consolidation pressure increases,the maximum dynamic shear modulus value increases significantly,and the correlation between the two is good,obeying the power function distribution;the maximum damping ratio decreases with the increase of consolidation pressure,but there is no obvious correlation between the two.
soft rock of Jiyangdynamic shear modulusdamping ratiodynamic shear strain
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