摘要
为探究不同厚径比对于岩体抗拉强度的影响,通过颗粒流软件PFC进行了不同厚径比下的巴西劈裂试验,获得了不同厚径比下试样的抗拉强度和裂纹分布情况。其抗拉强度随厚径比的增大,降低幅度明显,破坏模式趋于复杂,为实验室通过巴西劈裂测定抗拉强度提供一定的参考。
In order to investigate the influence of different thickness-diameter ratio on the tensile strength of rock mass,the Brazilian crack test under different thickness-diameter ratio was carried out by particle flow software PFC.The tensile strength decreases obviously with the increase of thickness-diameter ratio,and the failure mode tends to be complicated.It provides a certain reference for testing tensile strength through Brazilian crack in laboratory.
作者
窦浩宇
Dou Haoyu(China University of Mining&Technology,Beijing 110083,China)
出处
《山西建筑》
2021年第2期78-80,共3页
Shanxi Architecture
关键词
颗粒流
尺寸效应
巴西劈裂试验
裂纹扩展
particle flow
size effect
brazil crack test
crack propagation
