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个人信息Personal Information
教授
博士生导师
硕士生导师
任职 : 工程抗震研究所副所长
性别：男
毕业院校：大连理工大学
学位：博士
所在单位：水利工程系
学科：水工结构工程. 防灾减灾工程及防护工程. 岩土工程
办公地点：辽宁省大连市高新园区大连理工大学四号实验楼101
联系方式：xubin@dlut.edu.cn
电子邮箱：xubin@dlut.edu.cn
Analysis method on stability of the submarine slope due to methane hydrate dissociation
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论文类型：期刊论文
发表时间：2011-11-01
发表刊物：Tumu Gongcheng Xuebao/China Civil Engineering Journal
收录刊物：EI、PKU、ISTIC、Scopus
卷号：44
期号：SUPPL. 2
页面范围：207-211
ISSN号：1000131X
摘要：The time-varying parameters of the Mohr-Coulomb constitutive model and stress release method are used to study the process of modulus softening and strength reduction that result from hydrate dissociation. The finite element numerical method related to hydrate dissociation is developed. The effects of the hydrate dissociation on submarine slope stability and deformation are investigated by the developed calculation program. The results show that the proposed calculation method can well simulate hydrate dissociation process. The iteration steps needed in convergence could be used to determine whether the slope reaches limit equilibrium. The horizontal displacement and vertical settlement are caused mainly by strength loss and modulus softening.