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论文类型：期刊论文

发表时间：2012-12-01

发表刊物：JOURNAL OF COLD REGIONS ENGINEERING

收录刊物：Scopus、SCIE

卷号：26

期号：4

页面范围：149-159

ISSN号：0887-381X

关键字：Ice; Methane hydrate; Stress-strain relationship; Strength; Yield criteria

摘要：Mechanical properties and deformation behaviors of methane hydrate are important to assess the stability of gas hydrate reservoirs. In this study, using a high-pressure and low-temperature triaxial testing apparatus, the stress-strain relationship and strength of ice containing methane hydrate were studied. The results showed that the strength increased with a decrease of temperature, and the stress-strain relationship showed an elastoplastic strain-hardening behavior. When the confining pressure was less than 10 MPa, the strength increased with confining pressure. Also, it decreased with further increases of confining pressure beyond 10 MPa. DOI: 10.1061/(ASCE)CR.1943-5495.0000044. (C) 2012 American Society of Civil Engineers.