安徽吉阳软岩动力特性的共振柱试验研究  

Resonant Column Experimental Research of Dynamic Behaviors of Soft Rock in Nuclear Power Plant Site of Anhui Jiyang

作　　者：刘锋 王旭宏 杨球玉 吕涛 李昶 刘翔宇 夏加国 LIU Feng;WANG Xu-hong;YANG Qiu-yu;LV Tao;LI Chang;LIU Xiang-yu;XIA Jia-guo(China Nuclear Power Engineering Co.,Ltd.Beijing 100840,China)

机构地区：[1]中国核电工程有限公司,北京100840

出　　处：《全面腐蚀控制》2024年第7期26-28,共3页Total Corrosion Control

摘　　要：安徽吉阳软岩动剪切模量随动剪应变增大非线性减小,而阻尼比随剪应变增大非线性增大,且γ_(d)=1×10^(-4)附近时变化幅度最大。最大动剪切模量受固结压力影响明显,随着固结压力增大,最大动剪切模量值明显增大,且两者之间相关性较好,服从幂函数分布;最大阻尼比随固结压力增大而减小,但两者不存在明显的相关性。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 whenγ_(d)=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.

关 键 词：吉阳软岩 动剪切模量 阻尼比 动剪应变 

分 类 号：U231.1[交通运输工程—道路与铁道工程]