Results 1 to 10 of about 255,885 (342)

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

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

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

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

Effect of Near-Fault Pulsed Ground Motions on Seismic Response and Seismic Performance to Tunnel Structures

open access: yesShock and Vibration, 2021
Seismic analysis of tunnels close to or crossing seismogenic faults is a complex problem, which is often neglected at the design stage for the lack of specific codes or guidelines and also because underground structures are considered less vulnerable ...
Xiancheng Mei, Qian Sheng, Zhen Cui
doaj   +1 more source

Study on stress distribution and extrusion load threshold of compressed filled rock joints

open access: yesApplied Rheology, 2023
The distribution of stress and the normal extrusion load threshold in weak interlayer are crucial for direct shear test of filled rock joints, but there is a lack of theoretical research in this area. First, an analytical solution for stress distribution
Wang Pengpeng   +3 more
doaj   +1 more source

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