Mechanical Performance of Methane Hydrate–Coal Mixture

Xia Gao, Tongchuan Yang, Kai Yao, Baoyong Zhang, Qiang Wu and Chuanhai Liu
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Xia Gao: School of Architectural & Civil Engineering, Heilongjiang University of Science & Technology, Harbin 150022, China
Tongchuan Yang: School of Architectural & Civil Engineering, Heilongjiang University of Science & Technology, Harbin 150022, China
Kai Yao: Department of Civil & Environmental Engineering, National University of Singapore, Singapore 117576, Singapore
Baoyong Zhang: School of Safety Engineering, Heilongjiang University of Science & Technology, Harbin 150022, China
Qiang Wu: School of Safety Engineering, Heilongjiang University of Science & Technology, Harbin 150022, China
Chuanhai Liu: School of Safety Engineering, Heilongjiang University of Science & Technology, Harbin 150022, China

Energies, 2018, vol. 11, issue 6, 1-14

Abstract: Understanding mechanical behaviors of a methane hydrate–coal mixture are important for its associated application in coal and gas outburst prevention. A triaxial compression apparatus for a specimen of the methane hydrate–coal mixture was developed to measure its strength and deformation properties. Triaxial compression tests were performed on coal briquette samples under different confining pressures and methane hydrate saturation. Strain softening behavior of the methane hydrate–coal mixture can be identified for all the specimens under various conditions. The larger the methane hydrate saturation or confining pressure, the larger the peak strength, elastic modulus and peak strain. Mathematical relationships for correlating the peak strength with the methane hydrate saturation or confining pressure were also proposed.

Keywords: methane hydrate–coal mixture; strain softening; mechanical behavior (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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