不同含水率下红黏土软化模型及强度试验研究
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李怀鑫,林斌,陈士威,王鹏
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Study on the Softening Model and Strength of Red Clay at Different Water Content
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Huaixin LI,Bin LIN,Shiwei CHEN,Peng WANG
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表4 应力—应变软化模型参数值
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Table 4 Parameter values of stress-strain softening model
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| 含水率/% | 围压σ3/kPa | Ep/kPa | Emax | （σ1-σ3）t | εt | （σ1-σ3）p | εp | αEP | b1 | b2 | b3 | b4 | b5 |
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| 15 | 100 | 61.67 | 339.70 | 399.9 | 13.75 | 539.6 | 8.75 | 5.51 | 2.8911 | -0.2432 | 0.0716 | 3.1776 | 1.6901 | | 200 | 40.37 | 229.91 | - | - | 625.7 | 15.50 | 5.69 | 3.7145 | -0.1735 | -0.0025 | - | - | | 300 | 43.16 | 232.51 | - | - | 733.8 | 17.00 | 5.35 | 2.8074 | -0.2422 | 0.0642 | - | - | | 18 | 100 | 30.56 | 107.73 | - | - | 359.1 | 11.75 | 3.53 | 1.7701 | -0.2483 | -0.0421 | - | - | | 200 | 30.96 | 153.47 | - | - | 464.5 | 15.00 | 4.96 | 3.0566 | -0.1914 | -0.0113 | - | - | | 300 | 50.68 | 221.93 | - | - | 532.2 | 10.50 | 4.38 | 2.7939 | -0.1797 | -0.0530 | - | - | | 21 | 100 | 15.90 | 46.33 | - | - | 159.0 | 10.00 | 2.91 | 1.3262 | -0.2723 | -0.0900 | - | - | | 200 | 12.96 | 90.11 | - | - | 184.8 | 14.25 | 6.95 | 4.3715 | -0.1892 | 0.0491 | - | - | | 300 | 18.20 | 110.47 | - | - | 213.8 | 11.75 | 6.07 | 3.6334 | -0.2038 | 0.0431 | - | - | | 24 | 100 | 6.98 | 22.60 | - | - | 87.3 | 12.50 | 3.24 | 1.6133 | -0.2502 | -0.0704 | - | - | | 200 | 8.64 | 29.73 | - | - | 108.0 | 12.50 | 3.44 | 1.6684 | -0.2567 | -0.0416 | - | - | | 300 | 10.26 | 30.00 | - | - | 120.6 | 11.75 | 2.92 | 1.2321 | -0.2890 | -0.0699 | - | - |
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