Results 21 to 30 of about 2,048 (300)
Study on the breaking process of jointed rock mass by disc cutters based on digital image correlation and infrared thermography [PDF]
E3S Web of Conferences, 2021 Jointed rock masses are frequently encountered during the TBM excavation. To investigate the rock breakage mechanism of jointed rock mass by disc cutter and precursory information before rock failure, a series of indentation tests were performed on shear
Junning Xie, Bolong Liu, Nianchang Zeng
doaj +1 more source
Analysis of stress-structural collapse mechanism of columnar jointed basalt under high stress
Rock and Soil Mechanics, 2021 Columnar jointed rock mass with unique joint network structure is a special type of jointed rock mass, which is a binary structure composed of high strength ‘basalt block’ and specific ‘dominant joint’.
ZHANG Jian-cong +6 more
doaj +1 more source
Experimental and Numerical Study on the Anchorage Effect of Bolted Jointed Rock Masses
Frontiers in Earth Science, 2022 Anchor technology has become an irreplaceable geotechnical engineering reinforcement measure. To clarify anchorage effects and investigate the three-dimensional (3D) crack propagation process of bolted jointed rock masses, a series of physical model ...
Zhen Yang +6 more
doaj +1 more source
Geofluids, 2023 To study the effects of confining pressure and joint material properties on stress evolution and fracture behavior of jointed rock mass under SHPB impact load, the numerical software LS-DYNA and the indoor SHPB impact system are used to carry out ...
Wang Qirui +5 more
doaj +1 more source
Stability analysis of deep jointed rock face based on GSI
Meikuang Anquan, 2023 In view of the difficulty in selecting mechanical parameters of jointed rock mass, a mechanical model of jointed rock mass considering joint strength is built based on the geological strength index GSI, combined with the damage mechanics principle and ...
SUN Shijie, TIAN Maolin, XIAO Hongtian
doaj +1 more source
Research on elasto-plastic viscous fatigue constitutive model of jointed rock
Rock and Soil Mechanics, 2021 The jointed rock mass exhibits an obviously instantaneous plastic strain under fatigue loading, and thus it is imperative to establish a fatigue constitutive model of jointed rock considering instantaneous plasticity.
PENG Shu-quan +4 more
doaj +1 more source
Effect of Joint Density on Rockburst Proneness of the Elastic-Brittle-Plastic Rock Mass
Shock and Vibration, 2021 The prediction of rockburst proneness is the basis of preventing and controlling rockburst disasters in rock engineering. Based on energy theory and damage mechanics, the quantitative functional relationship between joint density and energy density was ...
Jiliang Pan, Fenhua Ren, Meifeng Cai
doaj +1 more source
Degradation mechanism of intermittent jointed sandstone under water-rock interaction
Yantu gongcheng xuebao, 2021 Under the action of periodic rising and falling of reservoir water level, the damage and deterioration of the jointed rock mass in the hydro-fluctuation belt of a reservoir bank slope is likely to cause the reservoir bank slope to develop in an unstable ...
DENG Hua-feng 1, QI Yu 1, LI Jian-lin 1, JIANG Qiao 1, ELEYAS Assefa 2, LI Xin-zhe 1
doaj +1 more source
Frontiers in Ecology and Evolution, 2023 Confining pressure is an important factor affecting the strength and deformation characteristics of rock mass, it is of great significance to study the mechanical and deformation characteristics of jointed rock mass under confining pressure for the ...
Lang Song +5 more
doaj +1 more source
Frontiers in Earth Science, 2023 To study the fatigue failure of an intermittent jointed rock mass under repeated stress waves, numerical models of jointed rock masses with different joint angles were created using Autodyne software, and crack propagation behavior was simulated using ...
Shuyin Ma +6 more
doaj +1 more source