Acoustic emission and fractal characteristics of red beds soft rock under water-force coupling
Lei Chen,
Taiyu Liu,
Baoxin Jia
et al.
Abstract:Groundwater has significant influence on the mechanical properties of surrounding rock. Aiming at the large deformation of surrounding rock of red layer soft rock tunnel affected by groundwater, the uniaxial graded loading tests were carried out on red beds soft rock with different water content. The failure process of the specimen was monitored by acoustic emission (AE) and the crack evolution law was analyzed, and the scanning electron microscopy (SEM) was used to compare the microstructure of the specimens … Show more
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