| 饱和软黏土中吸力锚的承载能力数值分析* |
| |
| 引用本文： | 韩智臣,孙昭晨,梁书秀.饱和软黏土中吸力锚的承载能力数值分析*[J].水运工程,2013(4):162-167. |
| |
| 作者姓名： | 韩智臣 孙昭晨 梁书秀 |
| |
| 作者单位： | 大连理工大学港口、海岸及近海工程国家重点实验室,辽宁大连,116024 |
| |
| 基金项目： | 国家创新研究群体科学基金(50921001) |
| |
| 摘 要： | 利用大型通用有限元软件ABAQUS,基于总应力分析法,建立了饱和软黏土中吸力锚的三维有限元数值模型,通过与物理模型试验对比,验证了数值模型的正确性.计算分析了吸力锚的水平承载力特性及其破坏模式、最优系缆深度上的倾斜承载力包络图.通过对有限元结果进行拟合分析,提出了吸力锚承载能力的简化计算公式,公式中考虑了长径比、加载角度和土体不排水抗剪强度的影响.
|
| 关 键 词： | 饱和软黏土 最优系缆深度 承载力包络图 长径比 加载角度 |
Numerical analysis of bearing capacity of suction caissons in saturated soft clay |
| |
| HAN Zhi-chen,SUN Zhao-chen and LIANG Shu-xiu.Numerical analysis of bearing capacity of suction caissons in saturated soft clay[J].Port & Waterway Engineering,2013(4):162-167. |
| |
| Authors: | HAN Zhi-chen SUN Zhao-chen and LIANG Shu-xiu |
| |
| Institution: | State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China;State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China;State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China |
| |
| Abstract: | Based on the total stress method, a three-dimensional FEM numerical model of suction caissons
in saturated soft clay is presented by the finite element analysis software ABAQUS. The numerical model is verified
by the laboratory test results. In the numerical analysis, the load bearing characteristics, failure mechanism and
the envelope diagram on the optimal mooring point are investigated. By fitting analysis of the numerical results,
a simplified method for the estimation of the uplift capacity for suction caissons is described. The expressions
developed in this paper take into account the influence of the aspect ratio of the caisson, angle of inclination of the
loading and the undrained shear strength of the soil. |
| |
| Keywords: | saturated soft clay optimal mooring point envelope diagram aspect ratio angle of inclination |
| 本文献已被 万方数据 等数据库收录！ |
| 点击此处可从《水运工程》浏览原始摘要信息 |
| 点击此处可从《水运工程》下载免费的PDF全文 |
|
