Experimental study of erosion threshold of reconstituted sediments
文献类型：会议论文
| 作者 | Ye ZH; Cheng L; Zang ZP(臧志鹏)
|
| 出版日期 | 2011 |
| 会议名称 | 30th International Conference on Ocean, Offshore and Arctic Engineering |
| 会议日期 | JUN 19-24, 2011 |
| 会议地点 | Rotterdam, NETHERLANDS |
| 关键词 | Arctic engineering Erosion Mixtures Sedimentology Shear stress Coarse particles Cohesive sediments Equilibrium modes Erosion characteristics Erosion thresholds Experimental studies Mass content Mud weights Natural sediments Predicting models Research efforts Seabed sediments Test condition Testing facility |
| 页码 | 973-983 |
| 通讯作者 | Ye, ZH (reprint author), Univ Western Australia, Sch Civil & Resource Engn, Perth, WA 6009, Australia. |
| 中文摘要 | Understanding of fundamental erosion characteristics of seabed sediments on which pipelines and other structures are founded is critical for the design of these facilities. The erosion threshold condition of cohesive sediments is not well understood because of the complexity and variability of natural sediments. Most of the existing methods for evaluating the erosion behaviours of seabed sediment are often applicable to the certain particular sediment types and test conditions. There appears to be a need for more research efforts in this area. In present research, the threshold of motion of four moderately consolidated mixtures was tested under unidirectional currents using a testing facility. Three threshold shear stress increase modes were observed, including initial increase mode, steady increase mode and equilibrium mode as mass content of mud Pm increases. A dimensionless threshold shear stress t is proposed to quantify the shear strength of these reconstituted mixtures, coupled with variation of coarse particle size. Finally, a predicting model is proposed to illustrate the trend of erosion threshold of the four mixtures as a function of mud weight content. Further understanding of erosion threshold can rely on the various consolidation conditions and different coarse and fine materials inputted in the mixture. |
| 收录类别 | CPCI ; EI |
| 合作状况 | 国际 |
| 产权排序 | 1 School of Civil and Resource Engineering, University of Western Australia, Perth, WA 6009, Australia 2 Institute of Mechanics, Chinese Academy of Sciences, Beijing, 100080, China |
| 会议网址 | http://dx.doi.org/10.1115/OMAE2011-50067 |
| 会议录 | OMAE2011: PROCEEDINGS OF THE ASME 30TH INTERNATIONAL CONFERENCE ON OCEAN, OFFSHORE AND ARCTIC ENGINEERING, VOL 7: CFD AND VIV: OFFSHORE GEOTECHNICS
 |
| 会议录出版者 | AMERICAN SOCIETY OF MECHANICAL ENGINEERS |
| 语种 | 英语 |
| ISBN号 | 978-0-7918-4439-7 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/46848]  |
| 专题 | 力学研究所_水动力学与海洋工程重点实验室(2009-2011) |
| 推荐引用方式 GB/T 7714 | Ye ZH,Cheng L,Zang ZP. Experimental study of erosion threshold of reconstituted sediments[C]. 见:30th International Conference on Ocean, Offshore and Arctic Engineering. Rotterdam, NETHERLANDS. JUN 19-24, 2011.http://dx.doi.org/10.1115/OMAE2011-50067. |
入库方式： OAI收割
来源：力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。