Finite-Element based multicriteria numerical optimization of geotechnical constructions at service limit state

基于有限元的岩土工程使用极限状态多准则数值优化

• 批准号: 114502996
• 负责人: Professor Dr.-Ing. Jürgen Grabe
• 金额: --
• 依托单位: Institut für Geotechnik und Baubetrieb B-5
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2009
• 资助国家: 德国
• 起止时间: 2008-12-31 至 2014-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/114502996?language=en
• 关键词: Finite; Element; based; multicriteria; numerical

The work on the finite element based multicriteria numerical optimization of geotechnical constructions (FEMNOG) has been very successful as the recent report has shown. The optimization algorithms were modified and applied to geotechnical tasks; see e.g. Grabe et al. [5, 6], Pucker and Grabe [11, 12]. The further research program had to be modified as the experience has shown that the objective function economical feasibility and construction time can hardly be captured in a realistic way. For the reason, the objective functions were customized in order to consider the settlements of foundations and their loading capacity.The research schedule is additionally extended with model experiments in phase 5. The experiments will be used to validate the numerical results qualitatively. Therefore, model experiments with numerically optimized topologies are compared to experiments with standard shallow foundations to point out the potential of the numerical algorithms.In Phase 6, the results of the numerical simulations and the model experiments are used to develop new innovative foundation structures.

最近的报告表明，基于有限元的岩土结构多准则数值优化（FEMNOG）的工作是非常成功的。改进了优化算法，并将其应用于岩土工程任务；参见Grabe et al. [5,6], Pucker and Grabe[11,12]。由于经验表明，很难以现实的方式捕捉目标函数、经济可行性和施工时间，因此进一步的研究计划不得不修改。因此，为了考虑地基的沉降和承载能力，对目标函数进行了定制。第五阶段的模型实验进一步延长了研究进度。实验将用于定性地验证数值结果。因此，将数值优化拓扑的模型实验与标准浅基础的实验进行了比较，以指出数值算法的潜力。在第6阶段，利用数值模拟和模型试验的结果开发新的创新基础结构。

项目成果

Topologieoptimierung in der Geotechnik: Anwendung auf Gründungsstrukturen und Validierung

岩土工程中的拓扑优化：在基础结构中的应用和验证

• DOI: 10.1002/gete.201400031
• 发表时间: 2016
• 期刊: geotechnik
• 影响因子: 0.6
• 作者: Pucker

Structural optimization in geotechnical engineering: basics and application

岩土工程结构优化：基础与应用

• DOI: 10.1007/s11440-011-0134-7
• 发表时间: 2011
• 期刊: Acta Geotechnica
• 影响因子: 5.7
• 作者: Pucker

Three-dimensional topology optimization for geotechnical foundations in granular soil

粒状土岩土基础三维拓扑优化

• DOI: 10.1016/j.compgeo.2016.06.012
• 发表时间: 2016
• 期刊: Computers and Geotechnics
• 影响因子: 5.3
• 作者: K.Grabe