ProcessesThe moisture content is closely related to the shear creep deformation behavior of soft rock, and the linear creep deformation behavior of soft rock can be described by the classical Nishihara model. However, its accuracy in describing accelerated nonlinear creep characteristics and the effects of moisture content still needs to be improved.
Ma, Liyao +5 more
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Creep failure characteristics and damage creep model of red layer soft rock based on Perzyna viscoplastic theory [PDF]
Scientific ReportsRock creep is essentially a process of damage accumulation. According to the damage evolution of rock under creep conditions, the TAW2000 triaxial test system is used to carry out triaxial creep test on red layer soft rock taken from Yibo Tunnel in ...
Lei Chen +6 more
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Uniaxial creep characteristics and constitutive model of arkose sandstone with different moisture contents under repeated freeze thaw cycles [PDF]
Scientific ReportsTo investigate the creep characteristics of water-containing slope rocks in high-cold regions, this study conducted indoor physical and mechanical tests on arkose sandstone specimens, with moisture content and freeze-thaw cycle number as test variables ...
Tian Chen +5 more
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Impact of X-ray beam quality on organ-absorbed dose in chest CT: Evaluation using spectral analysis and beam-shaping filters. [PDF]
J Appl Clin Med PhysAbstract Background In computed tomography (CT), radiation dose is commonly evaluated using system‐displayed metrics such as CTDIvol; however, variations in X‐ray beam quality may influence organ absorbed dose even under identical CTDIvol conditions.
Ito Y +4 more
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Fractional creep model and experimental study of unsaturated silty clay in Fuyang
Frontiers in Earth Science, 2023 Due to the long-term overdraft of groundwater in Fuyang, silty clay in this area has been in an unsaturated state for a long time, which caused ground subsidence and threatened the safety of engineering construction.
Daguo Wu +5 more
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Equivalent fatigue stress and non-linear constitutive model for fatigue of rock
Yantu gongcheng xuebao, 2021 The traditional damage model is insensitive to cycles of loading and unloading, and it is obviously inadequate for the characterization of fatigue deformation and failure of rock. Based on the creep and fatigue tests, the "homology" hypothesis of the two
TANG Xin 1, YU Jin 1, LIN Li-hua 2, GAO Hai-dong 3, LI Gang 3, LIN Zhi-chao 2
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A nonlinear creep model for surrounding rocks of tunnels based on kinetic energy theorem
Journal of Rock Mechanics and Geotechnical Engineering, 2023 The initiating condition for the accelerated creep of rocks has caused difficulty in analyzing the whole creep process. Moreover, the existing Nishihara model has evident shortcomings in describing the accelerated creep characteristics of the ...
Wenbo Liu +4 more
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Research on Creep Model of Roadway Surrounding Rock Based on Variable Creep Parameters
Meikuang Anquan, 2020 In order to study the creep behavior of surrounding rock of Huaying Coal Mine in Sichuan under different confining pressure characteristics, the triaxial creep test of sandstone was carried out by TAW-2000 test system.
LIU Changming, ZHANG Hong
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Improved Nishihara model considering accelerated creep cells.
, 2023 Improved Nishihara model considering accelerated creep cells.
Jiangbo Guo (825963) +3 more
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