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RISVerification of the Kaiser Effect in Rocks under Tensile Stress: Experiment Using the Brazilian Test
Publisher: American Society of Civil Engineers
Abstract: For many aspects of rock engineering, it is important to measure the in situ stresses, not only under compression but also under tension. Brazilian tests were performed to generate tensile stress in granite samples. The ...
In Situ Nuclear Magnetic Resonance Observation of Pore Fractures and Permeability Evolution in Rock and Coal under Triaxial Compression
Publisher: American Society of Civil Engineers
Abstract: AbstractThis study presents a novel approach that incorporates nuclear magnetic resonance
(NMR) measurement and triaxial loading chamber to accomplish the laboratory in situ
continuous observation of the pore-fracture ...
Permeability and Energy Evolution of Coal under Unloading Confining Pressure
Publisher: American Society of Civil Engineers
Abstract: Abstract To understand the permeability and energy evolution of coals under the mining-induced
stress, constant and unloading confining pressure tests are conducted. The permeability
and energy evolution of coals under ...