脆性岩石全应力应变过程中渗透性突变研究 - 中南大学学报（自然科学版、英文版） 关键字: 脆性岩石；全应力应变；渗透性突变[gap=1550]Key words: brittle rock; complete stress-strain path; permeability catastrophe
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获得了不同应力状态下的岩石强度极限值和岩石的三向全应力应变曲线。
The rock strength limit value under different stress states and the strain curve of 3-dimensional full stress are obtained.
根据岩石的破裂机理，本文提出了在单轴压力下的全应力应变关系的微观破裂模型。
According to cracking mechanism of rock, this article presents a model of complete stress-strain under uniaxial compress in minute cracking.
根据岩石的全应力应变试验，结合现场实际观测数据，对以应变为指标的岩梁断裂步距表达式做了初步验证。
According to the total stress-strain tests, the expression of caving step length of roof is validated combining with the observed data.
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