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Journal of Rock Mechanics and Geotechnical Engineering, 2020 Layered rock mass of significant strength changes for adjacent layers is frequently observed in underground excavation, and dynamic loading is a prevalent scenario generated during excavation.
Sen Wen +3 more
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Research on Damage Evolution Mechanism of Layered Rock Mass under Blasting Load
BuildingsRock mass consists of many discontinuities, such as faults, joints, etc., and layered joints are a common kind of rock mass structure. The joints affect the stress wave propagation, and blasting is an economical and efficient rock fragmentation method ...
Lixiang Xie +5 more
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The Explosive Crack Propagation Mechanism of Layered Rock Mass
Shock and VibrationLayered joints significantly affect the propagation and attenuation of engineering blasting stress waves and have a significant influence on rock breakage. In this study, the explosion crack propagation mechanism of a stratified rock mass with weak or no
Jinjing Zuo, Liwei Ma
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Investigation of anisotropic strength criteria for layered rock mass
Journal of Rock Mechanics and Geotechnical EngineeringLayered rock mass is a type of engineering rock mass with sound mechanical anisotropy, which is generally unfavorable to the stability of underground works.
Shuling Huang +6 more
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Loose circle and rock mass strength tests of extremely thin layered surrounding rock in large deformation tunnels. [PDF]
Sci RepAbstract The scope of the surrounding rock loosening and its mechanical properties can significantly affect the analysis of the excavation loosening range, stress-strain state partitioning, and surrounding rock mass stability. Investigating the mechanical properties and failure modes of the surrounding rock mass, optimizing the support design ...
Peng F +7 more
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Alexandria Engineering Journal, 2022 The mechanical indices used to describe the anisotropy of layered rock mass are numerous and difficult to be measured. Take the medium - thick horizontal layered limestone rock mass as an example, rock mechanical tests, engineering geological survey ...
Xianmin Han +3 more
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Study of Impact Dynamic Characteristics and Damage Morphology of Layered Rock Mass
Geofluids, 2022 To explore the dynamic mechanical properties and damage evolution law of the more common layered rock masses in geotechnical engineering, this paper determined the Holmquist–Johnson–Cook (HJC) constitutive model parameters of dolomite, gray sandstone ...
Xingchao Tian, Tiejun Tao, Caijin Xie
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Meitan kexue jishuLayered rock is a common geological structure of underground engineering construction, drilling and blasting method construction in layered rock is manifested in poor blasting and shaping effect, serious phenomenon of over and under excavation, uneven ...
Jianxin YU +3 more
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Research on the Layered Rock Mass Excavation Relaxation Stability of Underground Caverns [PDF]
E3S Web of Conferences, 2020 In order to compare the influence of rock mass parameters weakening on the deformation and stability of excavation caverns in layered rock mass, based on power generation system caverns of a hydropower station, the stability and deformation of the ...
Zhang Ying +3 more
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The Blasting Vibration Characteristics of Layered Rock Mass under High-Pressure Gas Impact
Energies, 2023 Firstly, the experimental test of blasting vibration was carried out to study the propagation characteristics of the peak particle velocity (PPV) and dominant frequency (DF) of the blasting vibration of layered rock mass under high-pressure gas impact ...
Haixia Wei +4 more
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