Results 41 to 50 of about 1,903 (191)
Geosciences, 2022 The generalized Hoek-Brown (GHB) failure criterion can estimate the rock mass parameters required for rock mechanics–related analyses such as numerical modeling in geomechanics.
Ali Saeidi +3 more
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Deep Underground Science and Engineering, EarlyView.An analytical framework delivers a closed‐form stress solution for lined compressed air energy storage chambers, enabling the determination of the minimum safe burial depth. The solution quantitatively evaluates lining support effectiveness, offering a reliable tool for chamber design and optimization.
Zeyuan Sun +3 more
wiley +1 more source
Yantu gongcheng xuebao, 2020 By reconstructing the meso-structure of granite using the particle flow software PFC2D based on the grain-based model, a series of conventional triaxial compression tests on granite under different confining pressures are carried out.
HU Xun-jian 1, 2, BIAN Kang 1, 2, XIE Zheng-yong 3, LIU Jian 1, 2, CHEN Ming 1, 2, LI Bing-yang 1, 2
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The Mohr–Coulomb criterion for intact rock strength and friction – a re-evaluation and consideration of failure under polyaxial stresses [PDF]
Solid Earth, 2016 Darley Dale and Pennant sandstones were tested under conditions of both axisymmetric shortening and extension normal to bedding. These are the two extremes of loading under polyaxial stress conditions.
A. Hackston, E. Rutter
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Considerations on elliptical failure envelope associated to Mohr-Coulomb criterion
IOP Conference Series: Materials Science and Engineering, 2016 Mohr-Coulomb theory is mostly used in civil engineering as it is suitable for soils, rock, concretes, etc., meaning that the theory is generally used for brittle facture of the materials, but there are cases when it matches ductile behaviour also. The failure envelope described by the Mohr-Coulomb criterion is not completely accurate to the real yield ...
A M Comanici, P D Barsanescu
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Seismic analysis and design of tunnels within fault ground: A review
Deep Underground Science and Engineering, EarlyView.The research methods of seismic response of tunnels within fault ground, including field investigations, analytical solutions, physical experiments, and numerical simulations, and seismic countermeasures are discussed. The present study examines the shortcomings and limitations of the current research and design, and puts forward proposals for future ...
Xingda Wang +6 more
wiley +1 more source
Underground SpaceFibre-reinforced sand (FRS) is a multiphase and multiscale geo-material, which is widely used in geotechnical engineering as supporting structure of excavation of underground space and reinforcement of foundation of underground structures, and its ...
Deluan Feng, Yuxin Wang, Shihua Liang
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Strength behaviour of sandstone subjected to polyaxial state of stress
International Journal of Mining Science and Technology, 2017 The paper presents an experimental investigation on the strength behaviour of natural rock subjected to polyaxial state of stress. The polyaxial tests were conducted on cubical specimens of sandstone obtained from the Shivpuri district in Madhya Pradesh ...
Saurav Rukhaiyar +1 more
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Deep Underground Science and Engineering, EarlyView.For the roof of coral reef limestone caverns, a novel tension‐shear composite failure mechanism was developed. The most critical tensile crack model was identified using a hybrid optimization algorithm, and the stability of the cavern roof was analyzed accordingly.
Dongsheng Xu, Chenxu Li, Chuantan Hou
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A new approach for the fracture grouting pressure in soil mass
Advances in Mechanical Engineering, 2018 This study focuses on analytical solutions of the fracture grouting pressure. Based on the cavity expansion and fracture grouting mechanism, the small deformation in the elastic zone, large deformation in the plastic zone, and non-associated flow rules ...
Zhi-bin Wang, Jin-feng Zou, Hai Yang
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