Coal rock fracture is the major factor of disasters which occurred because of mine water bursting and the unstability of coal pillar.Effectively supervising the process of it is extremely important to the water conservation and strata control in mine. It is known that infrared radiation changes with the stress when coal rock is loading. The sudden change index of the variance of infrared radiation temperature of coal under uniaxial compressive loading was proposed to study the quantitative relationship betw...
Earth and Mineral Sciences,Pennsylvania State University,State College,PA 16802,USA)煤炭资源开采中,水资源的流失与煤岩(岩石)破裂紧密相关。同时,煤岩破裂也是引发矿井突水及煤柱失稳等灾害的根本原因[1]。如何准确有效地对煤岩受力破裂过程进行监测预警,是实现矿山保?