Brittle fracture propagation in rock under compression
Brittle fracture propagation in rock under compression
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DOI：
10.1007/bf00186851
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发表时间：
1965
期刊：
影响因子：
--
通讯作者：
E. Hoek;Z. Bieniawski
中科院分区：
文献类型：
--
作者：
E. Hoek;Z. Bieniawski
本文报道了单格里菲思裂纹在双轴压应力场中起裂和扩展的研究结果。结果表明，Griffith的脆性断裂理论可以可靠地预测试样的起裂应力，但单裂纹的断裂扩展不能解释试样的宏观断裂。本文介绍了一些关于裂纹排列和压缩中裂纹闭合影响的初步研究结果。讨论了这些结果在以压应力场为主的岩石破裂预测中的适用性。
The results of studies of the initiation and propagation of fracture from a single Griffith crack in a biaxial compressive stress field are reported. It is concluded that Griffith's theory of brittle fracture offers a reliable prediction of the fracture initiation stress but that the resulting fracture propagation from a single crack cannot account for the macroscopic fracture of a specimen. Some preliminary results of studies on crack arrays and on the effects of crack closure in compression are presented. The applicability of these results to the prediction of rock fracture in predominantly compressive stress fields is discussed.