N型组合节理类岩体单轴压缩破坏试验
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孙冰,罗瑜,谢杰辉,曾晟
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Failure Test of N-type Combination Jointed Rock Mass Under Uniaxial Compression
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Bing SUN,Yu LUO,Jiehui XIE,Sheng ZENG
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表1 超声波波速统计结果
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Table 1 Statistical result of ultrasonic velocity
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节理夹角/(°) | 超声波波速最大值/(km·s-1) | 超声波波速最小值/(km·s-1) | 超声波波速平均值/(km·s-1) | 标准差 | 衰减率/% | 完整试件 | 2.863 | 2.027 | 2.725 | 209 | | 0 | 2.778 | 1.832 | 2.563 | 300 | 5.9 | 15 | 2.660 | 1.802 | 2.482 | 243 | 8.9 | 30 | 2.717 | 1.965 | 2.514 | 253 | 7.7 | 45 | 2.757 | 2.001 | 2.605 | 194 | 4.4 | 60 | 2.799 | 2.119 | 2.699 | 183 | 0.9 | 75 | 2.679 | 2.083 | 2.518 | 180 | 7.5 | 90 | 2.660 | 1.658 | 2.463 | 295 | 9.6 |
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