| 非饱和土的固结与水力特性研究 |
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| 引用本文： | 缪林昌,崔颖.非饱和土的固结与水力特性研究[J].西北地震学报,2011,33(Z1). |
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| 作者姓名： | 缪林昌 崔颖 |
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| 作者单位： | 东南大学交通学院,江苏南京,210096 |
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| 基金项目： | 国家自然科学基金(50878051) |
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| 摘 要： | 采用平均土骨架应力代替Bishop的非饱和土的有效应力,基于分析体积变形连续性条件建立了简化的一维非饱和土固结方程,分析计算了非饱和土在固结过程中孔隙压力、平均土骨架应力、饱和度的变化情况。同时建立了耦合水力特性的非饱和土本构模型和屈服方程。算例计算结果表明本文提出的非饱和土简化固结理论和耦合水力特性的非饱和土应力应变本构模型的有效性。
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| 关 键 词： | 非饱和土 固结 本构模型 水力特性 土骨架应力 |
Study on Consolidation and Hydro-Mechanics Behaviors of Unsaturated Soils |
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| MIAO Lin-chang,CUI Ying.Study on Consolidation and Hydro-Mechanics Behaviors of Unsaturated Soils[J].Northwestern Seismological Journal,2011,33(Z1). |
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| Authors: | MIAO Lin-chang CUI Ying |
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| Affiliation: | MIAO Lin-chang,CUI Ying(School of Transportation,Southeast University,Nanjing 210096,China) |
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| Abstract: | Using the average soil skeleton stress to replace Bishop's effective stress of unsaturated soils,a simplified one dimensional consolidation equation is derived based on volumetric change,water continuity condition.The pore pressure,average soil skeleton stress and degree of saturation during consolidation of unsaturated soils with the equation are analyzed and calculated.According to testing results and the average soil skeleton stress,the constitutive model coupling hydro-mechanics and yield equations of u... |
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| Keywords: | Unsaturated soils Consolidation Constitutive model Hydro-mechanics behavior Soil skeleton stress |
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