滑移型裂纹模型在研究岩石动态单轴抗压强度中的应用

被引:18
作者
李海波
赵坚
李廷芥
机构
[1] 中国科学院武汉岩土力学研究所!武汉
[2] 南洋理工大学土木工程学院新加坡
[3] 南洋理工大学土木工程学院!新加坡
关键词
岩石; 滑移型裂纹; 动态; 单轴抗压强度;
D O I
暂无
中图分类号
TU452 [岩体力学性质及应力理论分析];
学科分类号
摘要
基于滑移型裂纹模型 ,研究了花岗岩在应变速率为 10 -4 ~ 10 0 s-1的单轴抗压强度与应变速率的关系。结果表明 ,花岗岩的抗压强度随应变速率的增加而增加 ,模型结果与实验结果吻合较好。在动荷载作用下 ,裂纹的扩展速率和岩石断裂韧度的率相关特性 ,导致岩石的动态抗压强度随应变速率的增加而增加
引用
收藏
页码:315 / 319
页数:5
相关论文
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