Centrifuge experimental study on instability of seabed stratum caused by gas hydrate dissociation

doi:10.1016/j.oceaneng.2015.06.006

IMECH-IR > 流固耦合系统力学重点实验室

	Centrifuge experimental study on instability of seabed stratum caused by gas hydrate dissociation
	Zhang, X. H.1; Lu, X. B.1; Shi, Y. H.2; Xia, Z.2; Liu, W. T.2; Zhang, XH (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China.
发表期刊	OCEAN ENGINEERING
	2015-09-01
卷号	105 页码:1-9
ISSN	0029-8018
摘要	Gas hydrate (GH) is a kind of solid energy resource with huge reserve. Stratum instability (such as marine landslide) may be caused by hydrate dissociation due to the softening of stratum and the buildup of excess pore pressure. In this paper, a centrifuge experiment was conducted to study the evolution of stratum instability during hydrate dissociation. The hydrate dissociation zone expands from the heating source in hydrate bearing sediment (HBS). The pore fluid pressure increases significantly accompanying the slow seepage and soil layer's softening and deformation. Large horizontal displacements and vertical displacements can be observed and increase with the expansion of hydrate dissociation zone. The results can be used for the verification of numerical simulations and a reference for engineering design. (C) 2015 Elsevier Ltd. All rights reserved.; Gas hydrate (GH) is a kind of solid energy resource with huge reserve. Stratum instability (such as marine landslide) may be caused by hydrate dissociation due to the softening of stratum and the buildup of excess pore pressure. In this paper, a centrifuge experiment was conducted to study the evolution of stratum instability during hydrate dissociation. The hydrate dissociation zone expands from the heating source in hydrate bearing sediment (HBS). The pore fluid pressure increases significantly accompanying the slow seepage and soil layer's softening and deformation. Large horizontal displacements and vertical displacements can be observed and increase with the expansion of hydrate dissociation zone. The results can be used for the verification of numerical simulations and a reference for engineering design. (C) 2015 Elsevier Ltd. All rights reserved.
关键词	Gas Hydrate Stratum Instability Centrifuge Test Dissociation Zone Pore Fluid Pressure
DOI	10.1016/j.oceaneng.2015.06.006
URL	查看原文
收录类别	SCI
语种	英语
WOS记录号	WOS:000360417700001
关键词[WOS]	SEDIMENTS ; SLOPE
WOS研究方向	Engineering ; Oceanography
WOS类目	Engineering, Marine ; Engineering, Civil ; Engineering, Ocean ; Oceanography
项目资助者	This study is part of Project no. GZH201100311 funded by China Geological Survey and Projects nos. 51239010, 11102209, and 41376078 funded by National Natural Science Foundation of China.
课题组名称	LMFS海洋土力学(LHO)
论文分区	一类
引用统计	被引频次：26[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/55778
专题	流固耦合系统力学重点实验室
通讯作者	Zhang, XH (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China.
作者单位	1.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China 2.Guangzhou Marine Geol Survey, Marine Environm & Engn Geol Survey, Guangzhou 510075, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Zhang, X. H.,Lu, X. B.,Shi, Y. H.,et al. Centrifuge experimental study on instability of seabed stratum caused by gas hydrate dissociation[J]. OCEAN ENGINEERING,2015,105:1-9.
APA	Zhang, X. H.,Lu, X. B.,Shi, Y. H.,Xia, Z.,Liu, W. T.,&Zhang, XH .(2015).Centrifuge experimental study on instability of seabed stratum caused by gas hydrate dissociation.OCEAN ENGINEERING,105,1-9.
MLA	Zhang, X. H.,et al."Centrifuge experimental study on instability of seabed stratum caused by gas hydrate dissociation".OCEAN ENGINEERING 105(2015):1-9.

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