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考虑扰动影响修正Duncan-Chang模型的二次开发

朱剑锋, 徐日庆

朱剑锋, 徐日庆. 考虑扰动影响修正Duncan-Chang模型的二次开发[J]. 岩土工程学报, 2015, 37(zk1): 84-88. DOI: 10.11779/CJGE2015S1017
引用本文: 朱剑锋, 徐日庆. 考虑扰动影响修正Duncan-Chang模型的二次开发[J]. 岩土工程学报, 2015, 37(zk1): 84-88. DOI: 10.11779/CJGE2015S1017
ZHU Jian-feng, XU Ri-qing. Secondary development of modified Duncan-Chang model considering disturbance[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(zk1): 84-88. DOI: 10.11779/CJGE2015S1017
Citation: ZHU Jian-feng, XU Ri-qing. Secondary development of modified Duncan-Chang model considering disturbance[J]. Chinese Journal of Geotechnical Engineering, 2015, 37(zk1): 84-88. DOI: 10.11779/CJGE2015S1017

考虑扰动影响修正Duncan-Chang模型的二次开发  English Version

基金项目: 国家自然科学基金项目(51178420,51409142); 浙江省科技厅公益项目(2012C21058); 国家科技部星火计划项目(2014GA701039); 国家住建部软科学研究项目(2013-K1-2); 浙江省教育厅(理)科研计划项目(Y201327602); 宁波市自然科学基金项目(2012A610160)
详细信息
    作者简介:

    朱剑锋(1982- ),男,讲师,主要从事土的工程性质及本构理论研究。

Secondary development of modified Duncan-Chang model considering disturbance

  • 摘要: 为了更准确预测施工扰动状态下土体的变形和强度特性,开发了考虑扰动影响的修正Duncan-Chang模型,编写了通用有限元软件ABAQUS修正Duncan-Chang模型的用户子程序(UMAT),并通过干砂三轴试验对UMAT的可行性进行了验证。试验结果表明,不同扰动度下的数值模拟值均接近于三轴试验值。因此,对考虑扰动影响修正Duncan-Chang模型的二次开发是可行的,可以在考虑施工扰动影响的岩土工程数值计算中推广应用。
    Abstract: The modified Duncan-Chang model considering disturbance is secondarily developed to predict the mechanical properties of soil under construction disturbance state more precisely. And the corresponding user subroutine UMAT of ABAQUS, which is a general-purpose finite element analysis system, is programmed. Moreover, the triaxial compressed tests on dry sands are carried out to prove the feasibility of the UMAT. The simulated results show that the predicted values of ABAQUS in which the developed UMAT subroutine has been used agree well with those of the triaxial tests at any disturbance state. Therefore, the secondary development of the modified Duncan-Chang model considering disturbance is feasible. Moreover, it can be widely used in the numerical calculation of geotechnical engineering.
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出版历程
  • 收稿日期:  2015-03-25
  • 发布日期:  2015-07-24

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