物理量 | 计量单位 | 平均值 |
密度 | g/cm3 | 2.70 |
吸水率 | % | 0.21 |
抗压强度 | MPa | 87.50 |
抗拉强度 | MPa | 8.20 |
抗弯强度 | MPa | 9.11 |
Physical properties of limestone
Figures of the Article
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Digital images of fracture surfaces with different JRCs
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Shapes of samples during preparation process
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Diagram of main device of test system
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Curves of seepage flow with confining pressure
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Curves of permeability and confining pressure
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Fitting curves between permeability and confining pressure
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Fitting curves of test parameters a, b and JRC
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Curves of kl and kf with JRC
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Curves of seepage flow of fracture with loading and unloading of seepage pressure
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Fitting relationship between JRC and decrease of seepage discharge
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Fitting relationship between JRC and initial seepage rate
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Curves of fracture permeability with seepage pressure under loading and unloading conditions
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Characteristics of morphologies of fracture surface of samples with JRC of 11.40 before and after tests
Tables of the Article
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物理量 计量单位 平均值 密度 g/cm3 2.70 吸水率 % 0.21 抗压强度 MPa 87.50 抗拉强度 MPa 8.20 抗弯强度 MPa 9.11 -
试样编号 JRC 围压/MPa 渗压/MPa 加载速率/(MPa·s-1) M-1 2.64 2,3,4,6,8,10,8,6,4,3,2 0.5 0.005 M-2 7.78 M-3 11.40 M-4 15.47 M-5 19.51 H-1 2.64 3 0.2,0.5,0.8,1.0,1.2,1.5,1.2,1.0,0.8,0.5,0.2 0.001 H-2 7.78 H-3 11.40 H-4 15.47 H-5 19.51
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