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Application and prospects of 3D printing in physical experiments of rock mass mechanics and engineering: materials, methodologies and models

open access: yesInternational Journal of Coal Science & Technology, 2023
The existence of joints or other kinds of discontinuities has a dramatic effect on the stability of rock excavations and engineering. As a result, a great challenge in rock mass mechanics testing is to prepare rock or rock-like samples with defects.
Qingjia Niu   +5 more
doaj   +2 more sources

A brief introduction to disaster rock mass mechanics

open access: yesGeohazard Mechanics, 2023
Rock mass mechanics can be classified into engineering rock mass mechanics and disaster rock mass mechanics based on science and application. Their conception, object, scientific essence and application were elaborated.
Yangsheng Zhao, Zijun Feng
doaj   +3 more sources

Delineating homogeneous zones for rock joint wall mechanical properties in open-pit mine slope based on a multi-indicator stacked generalization model [PDF]

open access: yesScientific Reports
Rock joints significantly influence slope stability, making it essential to delineate homogeneous zones. Traditional empirical methods are often subjective and ineffective when the mechanical properties of the joint walls are similar.
Xisaizhi Yu   +5 more
doaj   +2 more sources

Determination of the minimum number of specimens required for laboratory testing of the shear strength of rock joints

open access: yesGeomechanics and Geophysics for Geo-Energy and Geo-Resources, 2023
The shear strength of rock joints is critical in determining rock mass stability. However, the reliability of shear strength determined by testing only a few rock joint specimens is questionable due to the inherent heterogeneity of rock joints.
Rui Yong   +4 more
doaj   +1 more source

Engineering geological characteristics of the underground surge pool cavern: a case study, India

open access: yesInternational Journal of Geo-Engineering, 2022
For better rock mass characterization, 3D engineering geological mapping and in-situ testing was carried for the heading portion of surge pool of Palamuru Ranga Reddy lift irrigation scheme lift-II.
A. K. Naithani   +3 more
doaj   +1 more source

Study on the Effect of Nanoindentation Test Method on Micromechanical Properties of Granite Minerals

open access: yesGeofluids, 2022
The study on microscopic mechanical properties of mineral is of great significance to reveal the damage mechanism of rock and can provide important basis for nondestructive testing of building materials and assisted rock breaking technology.
Man Lei   +4 more
doaj   +1 more source

Topographic Effects on the Seismic Response of Trapezoidal Canyons Subjected to Obliquely Incident SV Waves

open access: yesShock and Vibration, 2023
The topography and the incident angle of seismic waves both have considerable effects on the seismic ground motions of canyons in a half-space. In this paper, the theory of wavefield decomposition and the artificial boundary is used to develop a method ...
Hui Shen, Yaqun Liu, Haibo Li, Bo Liu
doaj   +1 more source

Drone Photogrammetry for Accurate and Efficient Rock Joint Roughness Assessment on Steep and Inaccessible Slopes

open access: yesRemote Sensing, 2023
The roughness of rock joints exerts a substantial influence on the mechanical behavior of rock masses. In order to identify potential failure mechanisms and to design effective protection measures, the accurate measurement of joint roughness is essential.
Jiamin Song   +4 more
doaj   +1 more source

A case study on severe damage at a tunnel in serpentinite rock mass

open access: yesSN Applied Sciences, 2021
Face squeezing, floor heave, and buckling of invert were found after a 10-day holiday in 2014 around the serpentinite face of a tunnel in Hokkaido, Japan.
Y. Fujii   +9 more
doaj   +1 more source

Experimental study on the gas desorption law in coal affected by dynamic water injection

open access: yesScientific Reports, 2023
Water from hydraulic technology affects the desorption of gas from coal seams. Gas desorption behavior is critical information for gas control in coal mines.
Tianwei Shi   +3 more
doaj   +1 more source

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