温度循环作用对岩石破坏影响的细观实验研究

he paper take marble as subject investigated. The rock’s mechanical property parameter and its change regularity are achieved through the marble uniaxial compression tests under different temperature and different cycle times. We do mesotesting on rock’s sample by using the scanning electron microscope (SEM) and the microcracks’ meso-structural information such as quantity, area, length, etc are also obtained by analyzing the SEM images. We analyse the obtaining data and find the change regularity of meso-structural parameter similar to the change regularity of rock’s mechanical property parameter. Finally, the reason of phenomenon is explored.