A New Method to Evaluate Rock Mass Brittleness Based on Stress–Strain Curves of Class I
作者: Y. J. XiaL. C. LiC. A. TangX. Y. LiS. MaM. Li
作者单位: 1Dalian University of Technology
2University of Alberta
3SINOPEC
刊名: Rock Mechanics and Rock Engineering, 2017, Vol.50 (5), pp.1123-1139
来源数据库: Springer Nature Journal
DOI: 10.1007/s00603-017-1174-6
关键词: Rock mechanicsBrittleness indexStress–strain curve of Class ILaboratory testNumerical simulation
英文摘要: Brittleness is a key controlling parameter for rock engineering projects such as hydrocarbon production and other applications. In this paper, commonly used methods based on stress–strain curves of Class I for the calculation of rock brittleness are reviewed. In order to describe the rock brittleness more reasonable, the new index B i was proposed based on the stress drop rate obtained from post-peak stress–strain curve and the ratio of elastic energy released during failure to the total energy stored before the peak strength. Then the validity of B i is verified with experimental tests conducted on rock specimens drilled from the interlayer and oil layer through a well of Shengli Oilfield. Moreover, numerical simulation is performed to analyze the effects of primary...
原始语种摘要: Brittleness is a key controlling parameter for rock engineering projects such as hydrocarbon production and other applications. In this paper, commonly used methods based on stress–strain curves of Class I for the calculation of rock brittleness are reviewed. In order to describe the rock brittleness more reasonable, the new index B i was proposed based on the stress drop rate obtained from post-peak stress–strain curve and the ratio of elastic energy released during failure to the total energy stored before the peak strength. Then the validity of B i is verified with experimental tests conducted on rock specimens drilled from the interlayer and oil layer through a well of Shengli Oilfield. Moreover, numerical simulation is performed to analyze the effects of primary...
全文获取路径: Springer Nature  (合作)
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影响因子:1.16 (2012)

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关键词翻译
关键词翻译
  • Class B类放大器、 C类放大器
  • brittleness 脆度
  • parameter 参数
  • simulation 模拟
  • strain 应变
  • modes 模式
  • mechanics 力学
  • interlayer 夹层
  • experimental 实验的
  • mechanism 机构