DMC复合地基工后沉降可靠性分析及设计优化
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陈伟航,罗强,王腾飞,张文生,蒋良潍
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Reliability analysis of post-construction settlement of DMC composite foundation and design optimization
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Wei-hang CHEN,Qiang LUO,Teng-fei WANG,Wen-sheng ZHANG,Liang-wei JIANG
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| 表 1 有限元模型的材料参数[14] |
| Tab.1 Material parameters employed in FEM models |
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| 材料 | 模型 | E/MPa | $\nu $ | c/kPa | $\varphi $/(°) | λ | $ \kappa $ | M | e0 | kv/(10−4 m·d−1) | kh/(10−4 m·d−1) | | 地基回填土 | MCC | — | 0.15 | — | — | 10 $ \kappa $ | 0.025 | 1.2 | 1.5 | 6 | 9.1 | | 软黏土1 | MCC | — | 0.15 | — | — | 10 $\kappa $ | ANN_MCD | 3.1 | 4.4 | 6.6 | | 软黏土2 | MCC | — | 0.15 | — | — | 10 $ \kappa $ | ANN_MCD | 2.49 | 4.6 | 6.9 | | 硬黏土 | MCC | — | 0.15 | — | — | 10 $ \kappa $ | 0.012 | 1.2 | 0.8 | 25 | 25 | | 黏砂土 | MC | 20 | 0.10 | 20 | 35 | — | — | — | 0.7 | 250 | 250 | | 加筋垫层 | MC | 125.8 | 0.32 | 75 | 42 | — | — | — | — | — | — | | 路堤填土 | MC | 1 | 0.40 | 20 | 35 | — | — | — | — | — | — | | DMC | MC | 100 | 0.15 | 500 | — | — | — | — | — | 4.6 | 4.6 |
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