IMECH-IR  > 环境力学重点实验室(2009-2011)
Numeric Simulation for the Seabed Deformation in the Process of Gas Hydrate Dissociated by Depressurization
Zhao ZW(赵振伟); Shang XC
Source PublicationINFORMATION COMPUTING AND APPLICATIONS, PT 1 丛书: Communications in Computer and Information Science 卷: 105 页: 296-303
2010
Conference NameInternational Conference on Information Computing and Applications
Conference DateOCT 15-18, 2010
Conference PlaceTangshan, PEOPLES R CHINA
AbstractWhen the gas hydrates dissociate, the mechanical properties of sediments will change, which may cause the deformation of the seabed. Such incidence will directly affect the stability of the undersea device. Under the consideration of seepage-stress coupling, this paper analyzed the deformation of seabed using finite element method. Duncan Chang's E-B constitutive model code was written, the impact of stress on the elastic constants was considered in this model. It was implemented in ABAQUS and used to simulating the nonlinear deformation of sediments. The results show that vertical effective stress of soil around the well increase significantly when gas hydrates are exploited by depressurizationThe deformation of seabed increases nonlinearly with the increasing of the decomposition radius of hydrateThe maximum settlement reaches 9 m and the maximum horizontal displacement reaches 4 m. The results provide guidance on the submarine construction in the process of gas production from hydrates.
KeywordGas Hydrates Redevelopment Of Abaqus Seabed Deformation
WOS IDWOS:000289449300039
Funding OrganizationHebei Polytechn Univ; Hebei Scene Stat Soc; Natl Sci Fdn; Hunan Inst Engn
ISBN978-3-642-16335-7
Indexed ByCPCI-S ; EI
Language英语
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/45658
Collection环境力学重点实验室(2009-2011)
Recommended Citation
GB/T 7714
Zhao ZW,Shang XC. Numeric Simulation for the Seabed Deformation in the Process of Gas Hydrate Dissociated by Depressurization[C]INFORMATION COMPUTING AND APPLICATIONS, PT 1 丛书: Communications in Computer and Information Science 卷: 105 页: 296-303,2010.
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