Results 11 to 20 of about 9,555 (264)

Creep Structure Effect of Layered Rock Mass Based on Acoustic Emission Characteristics

open access: yesShock and Vibration, 2021
Investigating the creep structural effect of layered rock mass is of great practical and theoretical significance. In this paper, taking the Muzhailing tunnel as an example, structure effect of layered rock mass based on acoustic emission characteristics
Huichen Xu   +4 more
doaj   +1 more source

Experimental study on the shear failure of layered rock bridges

open access: yesFrontiers in Earth Science, 2023
The structural face of rock plays a decisive role in the stability of geotechnical engineering, and the mechanism of failure destabilization of layered rock masses is still unclear.
Jianxin Yu   +7 more
doaj   +1 more source

Earthquake Dynamic Failure Mechanism of Dangerous Rock Based on Dynamics and PFC3D

open access: yesFrontiers in Earth Science, 2021
The dynamic failure mechanism of horizontally layered dangerous rock during earthquakes is complex and only few studies have addressed the combination of particle flow code (PFC) meso-level failure mechanism and mechanical analysis.
Yun Tian   +4 more
doaj   +1 more source

Air Convection in the Active Layer of Rock Glaciers [PDF]

open access: yesFrontiers in Earth Science, 2020
Coarse blocks are an abundant surface cover in mountainous permafrost landscapes. In this coarse blocky layer, air convection occurs and has a significant influence on the ground thermal regime of the underlying permafrost. Besides heat transfer through conduction, free convection of air takes place seasonally and leads to a pronounced ground cooling ...
Wicky, Jonas, Hauck, Christian
openaire   +3 more sources

Development of Transversely Isotropic Elastoplastic Constitutive Model in FLAC3D and Its Application in Tunnel Engineering

open access: yesGeofluids, 2022
The obvious anisotropy of layered rock mass prevents the built-in constitutive model of commercial simulation software from accurately describing the elastoplastic behavior of the rock mass.
Haoran Li   +5 more
doaj   +1 more source

Stability Analysis on the Steeply-Inclined Small-Angle Layered Surrounding Rock Masses at the Upstream High Sidewall of a Large-Span Cavern

open access: yesFrontiers in Earth Science, 2022
The underground powerhouse of China’s Wudongde hydropower station is one of the world’s underground powerhouses with the largest span and height. Because the underground powerhouse is all located in steeply-inclined layered rock masses, and the bedding ...
Chong-Lin Jian   +7 more
doaj   +1 more source

Seismic Wave Propagation Characteristics and Their Effects on the Dynamic Response of Layered Rock Sites

open access: yesApplied Sciences, 2022
To investigate the seismic response of layered rock sites, a multidomain analysis method was proposed. Three finite element models with infinite element boundaries for layered sites were analysed.
Lihu Dong, Danqing Song, Guangwei Liu
doaj   +1 more source

Buoyancy-driven dispersion in a layered porous rock [PDF]

open access: yesJournal of Fluid Mechanics, 2015
AbstractWe investigate the longitudinal dispersion of a passive tracer by a gravity-driven flow in a porous medium consisting of a series of independent horizontal layers connected to a constant pressure source. We show that in a formation of given vertical extent, the total flux is only weakly dependent on the number of layers, and is very similar to ...
Farcas, Adrian, Woods, Andrew W
openaire   +2 more sources

The Blasting Vibration Characteristics of Layered Rock Mass under High-Pressure Gas Impact

open access: yesEnergies, 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
doaj   +1 more source

Mechanical Damage Test and Model Study of Layered Composite Rock Based on Acoustic Emission and DIC Characteristics

open access: yesShock and Vibration, 2022
To study the mechanical damage characteristics of layered composite rocks, sandstones, and mudstones of deep tight reservoirs were used as the research objects, and layered composite class rocks were prepared by similar material model tests.
Xianyin Qi   +3 more
doaj   +1 more source

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