Results 11 to 20 of about 5,494,240 (282)
Buildings, 2023 Consolidated undrained triaxial shear tests were performed on undisturbed saturated structured clay at three unloading rates (0.1, 0.25, and 2.5 kPa/min) using a GDS triaxial system to determine the effects of different unloading rates and unloading ...
Lu Li +3 more
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Effects of Unloading Rate on Energy Evolution Mechanism in the Single-Side Unloading Failure of Highly Stressed Marble [PDF]
Advances in Civil Engineering, 2020 Highly stressed rock masses continuously exchange substances and energy with the outer environment during single-side unloading, which is a damage evolution process with energy dissipation.
Wensong Xu +5 more
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Effect of true triaxial principal stress unloading rate on strain energy density of sandstone [PDF]
Scientific ReportsDeep rock are often in a true triaxial stress state. Studying the impacts of varying unloading speeds on their strain energy (SE) density is highly significant for predicting rock stability.
Zhixi Liu +3 more
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Experimental study on the effect of unloading rate on gneiss rockburst
Journal of Rock Mechanics and Geotechnical EngineeringRockburst are often encountered in tunnel construction due to the complex geological conditions. To study the influence of unloading rate on rockburst, gneiss rockburst experiments were conducted under three groups of unloading rates.
Dongqiao Liu +6 more
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Experiment on deformation and failure characteristics of sandstone at different unloading rates
Alexandria Engineering Journal, 2023 The unloading effect is an important factor for the failure of surrounding rock in deep underground engineering projects, especially under high-stress conditions.
Yang Peng +5 more
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Experimental Study on Influence of Unloading Rate on Creep Characteristics of Marble under High Stress [PDF]
E3S Web of Conferences, 2021 In the engineering of high stress area, the measures to control the stability of surrounding rock by reducing excavation footage and excavation speed are to adjust the unloading rate of surrounding rock caused by excavation.
He Huajun, Jin Huahui
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Advances in Materials Science and Engineering, 2021 In order to study the mechanical behaviors and fracture process properties of granite under confining pressure unloading with constant axial pressure, RMT-150B rock mechanics test system and acoustic emission detector were used to study the mechanical ...
Jiaqi Guo +4 more
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An Investigation on the Impact of Unloading Rate on Coal Mechanical Properties and Energy Evolution Law. [PDF]
Int J Environ Res Public Health, 2022 In order to further explore the relationship between the excavation speed and the damage of surrounding rocks and dynamic manifestation, the stress paths of unloading confining pressure and loading axial pressure were designed based on the changes in the roadway surrounding rock stress in this study.
Guo H, Sun Z, Ji M, Wu Y, Nian L.
europepmc +3 more sources
Deformation and acoustic emission characteristics of hard rock under different unloading rates
Alexandria Engineering Journal, 2023 In this paper, triaxial loading and unloading tests under different conditions were carried out to explore the deformation and failure characteristics of hard rock marble, and the acoustic emission information of the test process was monitored ...
Yu Cong +5 more
doaj +2 more sources
Energies, 2023 Conventional and cyclic unloading tests with different unloading rates were conducted to study the influences of unloading patterns and rates on the deformation characteristics and mechanical properties of tectonic coal.
Deyi Gao +4 more
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