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Influence of the Intermediate Principal Stress on Sandstone Failure
Rock Mechanics and Rock Engineering, 2019This paper reports the results of fracture testing of sandstone under constant minor principal stress (20 MPa) and various intermediate principal stresses. The results show that when the minor principal stress is constant, as the intermediate principal stress increases, the ratio of the octahedral shear stress (τoct) to the octahedral normal stress ...
Minghui Li, Chao Liu, Zhenlong Song
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Experimental Study on Influence of Intermediate Principal Stress on the Permeability of Sandstone
Transport in Porous Media, 2020In engineering, it is considerably important to understand the evolution process of sandstone deformation and permeability under complex stress conditions. Although numerous scholars have reported on sandstone permeability, many of their studies are only based on uniaxial or conventional triaxial stress conditions.
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