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论文类型：期刊论文

发表时间：2012-12-01

发表刊物：INTERNATIONAL JOURNAL OF OFFSHORE AND POLAR ENGINEERING

收录刊物：Scopus、SCIE、EI

卷号：22

期号：4

页面范围：290-296

ISSN号：1053-5381

关键字：Methane hydrate; mechanical properties; triaxial compression test; strength criterion

摘要：To acquire more knowledge about the mechanical properties of gas hydrate-bearing sediments and assess the long-term stability of the strata, samples of clayey sediments containing methane hydrate were prepared and tested for their mechanical properties under various conditions by triaxial compression. The effects of temperature and confining pressure on the mechanical properties of methane hydrate-bearing sediments were analyzed. And a strength criterion considering the influence of temperature was developed for methane hydrate-bearing sediments. It agrees well with the experimental data, it and can be taken to predict the shear failure strength of methane hydrate-bearing sediments under subzero conditions.