三峡大学学报（自然科学版）2017，Vol.39Issue(4)：51-55,5.DOI:10.13393/j.cnki.issn.1672-948X.2017.04.011
基于颗粒离散元的岸壁式码头抛石基床承载力数值试验研究
Numerical Experiments on Bearing Capacity of Rubble Bed in Bulkhead Wharf Based on Particle-DEM
卢书明 1黄建生 1梁邦炎 2余东华 1王如宾3
作者信息
- 1. 中交四航局第五工程有限公司,福州 350008
- 2. 中交第四航务工程局有限公司,广州 510290
- 3. 河海大学土木与交通学院,南京 210098
- 折叠
摘要
Abstract
The method of improving the bearing capacity of rubber bed in the bulkhead wharf by using of heavy hammer,is very useful for the safety and stability of seacoast engineering.In this paper,based on the Particle-DEM method,a particle discrete element model of rubble bed is established,and the numerical experiments on the bearing capacity of rubble bed by using of Heavy hammer are carried out.It reveals that displacement is closely related to the bearing capacity of rubber bed in the process of heavy hammer tamping.The results show that the generated contact force is more dense in the bottom of loading beams of rubble bed,and with the increase of the contact force of ripped-rock,the bearing capacity of rubble bed increases,until the ultimate bearing capacity of ripped-rock is reached.The edge of rubble bed hunched up under the effect of mutual extrusion of ripped-rocks,with the uplift value up to 20 mm and compactness increased by 5％～10％.The results can provide reference for the study of the compactness and bearing capacity of rubble bed in similar projects.关键词
抛石基床/承载力/颗粒离散元/重锤夯实/数值试验Key words
rubble bed/bearing capacity/particle-DEM/heavy hammer/numerical experiments分类
矿业与冶金引用本文复制引用
卢书明,黄建生,梁邦炎,余东华,王如宾..基于颗粒离散元的岸壁式码头抛石基床承载力数值试验研究[J].三峡大学学报（自然科学版）,2017,39(4):51-55,5.
