| Numerical study on the stratum's responses due to natural gas hydrate dissociation |
| Lu L; Zhang XH(张旭辉) ; Lu XB(鲁晓兵); Lu, XB (reprint author), Univ Chinese Acad Sci, Dept Engn Sci, Beijing, Peoples R China.; Lu, XB (reprint author), Chinese Acad Sci, Inst Mech, Dept LMFS, Beijing, Peoples R China.
|
| 发表期刊 | SHIPS AND OFFSHORE STRUCTURES
 |
| 2017
|
| 卷号 | 12期号:6页码:775-780 |
| ISSN | 1744-5302
|
| 摘要 | Natural gas hydrate (NGH) dissociation can cause many kinds of potential hazards. Dimensional analysis is used first to obtain the controlling factors for NGH dissociation-induced stratum's responses. And then the effects of the controlling factors on the deformation and stress distribution have then been numerically investigated. A simplified critical condition for judging the instability of gentle inclined stratum after NGH dissociation was proposed. It is shown that the maximum settlement is located near the upper part of the slide body while the soil uplifts near the lower part. The fast change of the stress and deformation is located at the interface between hydrate-bearing stratum (HBS) and over layer. The slope angle has the largest effects on the responses of the stratum. The effects of modulus and water depth on the stratum's instability are small. There is a critical extension length of dissociation zone over which landslide will occur which is determined by the strength parameters, slope angle, friction coefficient and height of the over layer. |
| 关键词 | Gas Hydrate
Dissociation Zone
Slope Instability
Deformation
|
| DOI | 10.1080/17445302.2016.1241366
|
| 收录类别 | SCI
; EI
|
| 语种 | 英语
|
| WOS记录号 | WOS:000400763800004
|
| 关键词[WOS] | SEA
|
| WOS研究方向 | Engineering
|
| WOS类目 | Engineering, Marine
|
| 项目资助者 | National Natural Science Foundation of China [11272314, 51239010, 11102209]
; Project of CAS-CNPC Strategic Alliance
|
| 论文分区 | 二类
|
| 力学所作者排名 | 1
|
| 引用统计 |
|
| 文献类型 | 期刊论文
|
| 条目标识符 | http://dspace.imech.ac.cn/handle/311007/72132
|
| 专题 | 流固耦合系统力学重点实验室
|
| 通讯作者 | Lu, XB (reprint author), Univ Chinese Acad Sci, Dept Engn Sci, Beijing, Peoples R China.; Lu, XB (reprint author), Chinese Acad Sci, Inst Mech, Dept LMFS, Beijing, Peoples R China. |
推荐引用方式
GB/T 7714 |
Lu L,Zhang XH,Lu XB,et al. Numerical study on the stratum's responses due to natural gas hydrate dissociation[J]. SHIPS AND OFFSHORE STRUCTURES,2017,12,6,:775-780.
|
| APA |
Lu L,张旭辉,鲁晓兵,Lu, XB ,&Lu, XB .(2017).Numerical study on the stratum's responses due to natural gas hydrate dissociation.SHIPS AND OFFSHORE STRUCTURES,12(6),775-780.
|
| MLA |
Lu L,et al."Numerical study on the stratum's responses due to natural gas hydrate dissociation".SHIPS AND OFFSHORE STRUCTURES 12.6(2017):775-780.
|
修改评论