期刊论文

Deficiency and Measures of Study on Pile Foundation Relation of Anti-collision Structure

中文

公路交通科技

1002-0268

2020

37

02

47-54

10.3969/j.issn.1002-0268.2020.02.007

湖南省重点领域研发计划项目（2019SK2174）；

本校为第一机构

通过对土材料模型及参数的确定方法的相关现状进行分析总结,发现用于表征桩基关系的土材料模型及材料参数,无论在试验方法、本构模型遴选,还是模型参数的确定方面都存在不合理现象,同时这也是导致桩基关系不合理的主要成因。保证有限元仿真设计的桩基关系符合抗撞结构的使用要求,并与实际试验安装现场的桩基关系基本一致,即要保证土材料模型及参数与实际试验使用的回填土材料类型及参数的一致性。为此,桩基关系的研究需从桩基试验方法、土材料模型遴选以及模型参数反演3个方面进行完善。针对这3个方面研究存在的具体问题,分别给出了各自潜在的解决方案和未来可能的研究方向。首先,完善子结构级模...

The current situation that the determination methods for soil material models and material parameters is analyzed and summarized. It is found that the soil material models and material parameters used to characterize the relation between pile and foundation is unreasonable in the experimental method, constitutive model selection and the model parameters determination. At the same time,it is the main cause that contributed to the irrationality of relation between pile and foundation. It is necessary to ensure the pile foundation relation designed by FE simulation meets the using requirements of...