Fracture Study on Mode I-III Crack of Rock

Li, Li Yun; Feng, Xu; Xie, Heping; Wei, Ning

doi:10.4028/0-87849-413-8.1217

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Advances In Civil Engineering and Architecture1

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2011

2024

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“…4 Diagram of fractured rock Fig. 5 Horizontal seismic wave acted on fractured rock According to the references [4][5][6], for fractured rock is shown in Fig. 4, we take its fracture toughness K IC = 0.442MPa • m 1 / 2 , the energy release rate G = 1.2KJ/m 2 .…”

Section: Advances In Civil Engineering and Architecturementioning

confidence: 99%

Study on Tensile-Shear Failure of Fractured Rock Mass under Strong Seismic Load

Guo

Wang

Chen

2011

AMR

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Fractured rock mass endures tensile-shear and pressure-shear effects under horizontal seismic force. Based on rock fracture mechanics and the maximum circumferential stress theory, the extending condition (that is, the critical acceleration), the extending direction and the crack extension length under different direction of horizontal seismic force have been studied. The results are useful for judging the risk of dangerous rocks and providing a theoretical basis of pre-identification in the earthquake zone.

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Section: Advances In Civil Engineering and Architecturementioning

confidence: 99%