Research on Temperature-pressure Coupling Model During Crack Evolution of Coal in Coalfield Fire Area

XIAO Yang; ZHOU Yifeng; MA Li; LU Junhui

Safety in Coal Mines > 2017 > 48(3): 32-35.

XIAO Yang, ZHOU Yifeng, MA Li, LU Junhui. Research on Temperature-pressure Coupling Model During Crack Evolution of Coal in Coalfield Fire Area[J]. Safety in Coal Mines, 2017, 48(3): 32-35.

Citation:

XIAO Yang, ZHOU Yifeng, MA Li, LU Junhui. Research on Temperature-pressure Coupling Model During Crack Evolution of Coal in Coalfield Fire Area[J]. Safety in Coal Mines, 2017, 48(3): 32-35.

Citation:

XIAO Yang, ZHOU Yifeng, MA Li, LU Junhui. Research on Temperature-pressure Coupling Model During Crack Evolution of Coal in Coalfield Fire Area[J]. Safety in Coal Mines, 2017, 48(3): 32-35.

Research on Temperature-pressure Coupling Model During Crack Evolution of Coal in Coalfield Fire Area

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Published Date: March 19, 2017

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Abstract

Abstract

To definitely investigate the nature of fracture generation and the mechanism of temperature-pressure coupling in the cracks evolution process of coal mass, we analyze the effect of temperature, pressure, temperature-pressure coupling on coal fracture in this paper; combining damage theory and fracture criterion, we build temperature-pressure coupling model, and illustrate the coupling mechanism from theory and mathematical relationship. The nature of coal under temperature-pressure coupling failure can be described using the principle of first damage and then following the failure criterion.
- cracks of coal mass,
- damage,
- crack evolution,
- temperature - pressure coupling model,
- coalfield fire

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