Axial symmetrical thermal conduction and phase transformations in THF hydrate-bearing sediments

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	Axial symmetrical thermal conduction and phase transformations in THF hydrate-bearing sediments
	Zhang XH(张旭辉); Lu XB(鲁晓兵); Shi YH(石要红); Xia Z(夏真)
会议录名称	Proceedings of the Tenth ISOPE Ocean Mining (& Gas Hydrates) Symposium
	2013
页码	63-68
会议名称	10th (2013) ISOPE Ocean Mining (& Gas Hydrates) Symposium
会议日期	SEP 22-26, 2013
会议地点	Szczecin, POLAND
摘要	Thermal conduction and phase transformation are physical-chemical processes during the dissociation of gas hydrate-bearing sediments. Heat transfer leads to the expansion of hydrate dissociation front and the weakening of soils accompanied by the seepage of fluids and the deformation of sediments. As a consequence, ground failure may occur which can damage engineering structures and lead to environmental disasters. Hydrate dissociation in sediments is investigated using tetrahydrofuran (THF) hydrate sediments under various thermal strengths, and the time-dependent development of a hydratedissociation front is elucidated. An axial-symmetrical theoretical model and a numerical method are proposed based on experimental observations and analysis of the physical processes. Numerical and experimental results for evolution of the hydrate-dissociation front are in good agreement.
关键词	Hydrate Dissociation Phase Transformation Front Thermal Conduction Axial Symmetry
课题组名称	LMFS海洋土力学(LHO)
ISBN号	978-1-880653-92-0
URL	查看原文
收录类别	EI
语种	英语
文献类型	会议论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/48313
专题	流固耦合系统力学重点实验室
通讯作者	Zhang XH(张旭辉)
推荐引用方式 GB/T 7714	Zhang XH,Lu XB,Shi YH,et al. Axial symmetrical thermal conduction and phase transformations in THF hydrate-bearing sediments[C]Proceedings of the Tenth ISOPE Ocean Mining (& Gas Hydrates) Symposium,2013:63-68.

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