Results 21 to 30 of about 3,512 (307)

Mechanical Properties of Deep Variable Dip Joint Rock Mass in Reservoir Area under Wet and Dry Conditions

open access: yesAdvances in Materials Science and Engineering, 2023
The mechanical property of deep complex jointed rock mass is a hot topic in rock mechanics. In order to grasp the deformation and damage rules of through-going variable dip joint rock masses, the triaxial compression test and joint surface morphology ...
Fei Li   +3 more
doaj   +1 more source

Numerical study on compressive mechanical characteristics of filled jointed rock under confining pressure based on PFC

open access: yesFrontiers 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

Stability analysis of deep jointed rock face based on GSI

open access: yesMeikuang 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

Seismic response of rock joints and jointed rock mass [PDF]

open access: yes, 1996
Long-term stability of emplacement drifts and potential near-field fluid flow resulting from coupled effects are among the concerns for safe disposal of high-level nuclear waste (HLW). A number of factors can induce drift instability or change the near-field flow patterns.
Ghosh, A.   +2 more
openaire   +2 more sources

Degradation mechanism of intermittent jointed sandstone under water-rock interaction

open access: yesYantu 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

Study on Mechanical and Acoustic Emission Characteristics of the Influence of Rock Bridge Length on Rock Failure

open access: yesLithosphere, 2022
Rock bridge of jointed rock plays a key role in its instability failure and has great influence on underground engineering. In this paper, the direct shear tests of jointed rocks with different rock bridge lengths are carried out, and the mechanical ...
Jianchao Wang   +5 more
doaj   +1 more source

Failure process of non-persistent jointed rock.

open access: yes, 2023
(a) -45° non-persistent jointed rock and (a) 45° non-persistent jointed rock.
Hongbao Zhao (17060716)   +1 more
core   +1 more source

Effect of Joint Density on Rockburst Proneness of the Elastic-Brittle-Plastic Rock Mass

open access: yesShock 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

Experimental study on compression mechanical characteristics of filled rock joints after multiple pre-impacts

open access: yesScientific Reports, 2022
The prefabricated artificial filled jointed rock specimens are impacted by a self-made drop hammer impact device for many times, and the specimens with different degrees of cumulative damage characteristics are obtained.
Shaobo Chai   +4 more
doaj   +1 more source

Study of Shear Capacity of Jointed Rock Mass with Prestressed Anchor Bolt

open access: yesAdvances in Civil Engineering, 2019
Rock mass failure caused by jointed plane is the common disaster in geotechnical engineering. Research on shearing property of jointed rock mass with prestressed anchor bolt and its mechanical property is an aspect for the stability analysis of rock ...
Yufei Zhao, Hongtao Zhang, Yong Nie
doaj   +1 more source

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