Abstract

The fracture in rocks is of great significance for rock engineering, such as prediction and prevention of landslides. In order to explore the long-term behavior of fractured rock from the micro-scopes point of view, the creep shear experiment was carried out with fractured rocks induced by modified shear and Brazilian tension, respectively.

The micro-fracture events during the creep shear were monitored by acoustic emission. The relationship between creep shear behavior and acoustic emission (AE) energy has been investigated for different fractured rocks in the entire period of creep process. In addition, the locations of micro contact fractures have been recognized based on the AE information of fractured rock surfaces.

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