| 振动孔压增量模型在ABAQUS软件中的实现 |
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| 引用本文： | 龙慧,陈国兴,庄海洋,陈磊.振动孔压增量模型在ABAQUS软件中的实现[J].土木工程学报,2011(Z2). |
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| 作者姓名： | 龙慧 陈国兴 庄海洋 陈磊 |
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| 作者单位： | 南京工业大学岩土工程研究所; |
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| 基金项目： | 国家自然科学基金(90715018,50808100); 国家交通运输部西部科技项目(2009318225100); 江苏省高校自然科学重大基础研究项目(08KJA560001) |
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| 摘 要： | 将依据动三轴试验建立的饱和南京细砂孔压增量模型三维化,嵌入到基于ABAQUS软件开发的修正的Davidenkov黏弹性本构模型模块中,以外挂FORTRAN子程序的方式,完成三维振动孔压增量模型在ABAQUS软件中的二次开发。对简单应力状态和复杂应力状态下的可液化地基进行数值模拟,初步验证该外挂子程序的有效应力分析能力及可靠性,表明该子程序能够较好地模拟液化场地的振动孔压发展过程,能合理地反映场地的地震液化特性和有效应力变化规律,预测场地的地震液化趋势。
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| 关 键 词： | 有效应力法 场地地震液化 饱和南京细砂 振动孔压增量模型 数值模拟 |
The implementation of dynamic pore water pressure incremental model in ABAQUS software |
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| Long Hui Chen Guoxing Zhuang Haiyang Chen Lei.The implementation of dynamic pore water pressure incremental model in ABAQUS software[J].China Civil Engineering Journal,2011(Z2). |
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| Authors: | Long Hui Chen Guoxing Zhuang Haiyang Chen Lei |
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| Affiliation: | Long Hui Chen Guoxing Zhuang Haiyang Chen Lei (Institute of Geotechnical Engineering,Nanjing University of Technology,Nanjing 210009,China) |
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| Abstract: | A three-dimensional incremental model is created for dynamic pore water pressure(DPWP) obtained from dynamic triaxial test of saturated Nanjing fine sand.Then,this model is embedded into a three-dimensional Davidenkov viscoelastic constitutive model in ABAQUS.The secondary development of three-dimensional DPWP incremental model was achieved by executing FORTRAN subroutine.After simulating the liquefiable foundation soils under both simple and complex stress conditions,the FORTRAN subroutine is proved to be ... |
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| Keywords: | effective stress method site seismic liquefaction saturated Nanjing fine sand DPWP incremental model numerical simulation |
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