Study Of Infrared Radiation And Acoustic Emission Feature For Rock Catastrophe Due To Overloaded

China is a catastrophe-prone country with mine disaster caused by rock cataclysmunder stress. Water is an important factor affecting the disaster occurrence, and the key torock stress disaster prevention and mitigation in monitoring and early warning. A basicmeans is the experimental which can be used to explore the typical mine rock bursthazard related to the effects of water. Through experimental observation the drying,natural, moist sandstone, granite and basalt burst characteristics, this paper compares thesimilarities and differences between rock acoustic emission and infrared radiationcharacteristics in different water condition. This paper uses Pearson product-momentcorrelation coefficient to analyze the relation between acoustic emission event rate andthe absolute energy. Meanwhile, normalized analysis is used to analyze the highest andlowest temperature of infrared observations. Combined with microscopic structure ofrock from Field Emission Scanning Electr, the relations are studied betweencharacteristics of mechanics, acoustic emission, infrared radiation and structure. Based onthe research, the conclusions can be drawn:1) In the hydrostatic pressure state, water has greater effects on the porous rock thanthe overall structure rock. And the layered structure is mainly influenced by the beddingstructure.2) With the increase of moisture content, rock acoustic emission quiet period willreduce gradually.3) Rock burst is caused by large fracture, while micro fracture is the inducing factor.4) Infrared radiation of rock is mainly through the expression of the maximumradiation temperature and convergence enhancement with moisture content increasing.5) All the state and type of rock infrared radiation through the normalization willmeet a certain trend, but in the uniaxial compressive strength of more than90%willexhibit characteristics deviate from the original trend.6) Combining with the mechanics, the rate of acoustic emission event, absoluteenergy and infrared index, the forecast precision and accuracy of rock disaster predictioncan be improved.The research results could provide technical and theoretical basis for Monitoring andearly warning to the mine disaster and rock engineering disasters.