Research Status of Deep Coal and Rock Mass Mechanic Properties under High Temperature and High Confining Pressure

Abstract：China coal mines are turning into deep mining step by step.There are essential distinctions of deep coal and rock mass mechanic properties, and engineering response between under high temperature and high confining pressure and low temperature and under low confining pressure.By analysing of deep coal and rock mass mechanic properties under high temperature and high confining pressure.The research problems of deep coals and rock mass mechanic properties under high temperature and high confining pressure are pointed out in experimental condition, experimental area and theoretical base.The research area of deep coal and rock mass mechanic properties in the future is put forward, which has great theoretical and practical significance to deep coal mining in China.

Keyword：deep mining;coal and rock mass;high temperature;high confining pressure;rock mechanic properties;