Results 51 to 60 of about 272,485 (255)

Enhancing rock mass classification with ground penetrating radar: a novel approach for subsurface discontinuity assessment in geotechnical engineering

open access: yesREM: International Engineering Journal
This article explores the application of ground penetrating radar (GPR) as a novel, cost-effective tool for rock mass classification in geotechnical engineering. Traditional rock mass classification systems, such as the rock quality index (RQD), the rock
Konstantinos Polemis Júnior   +6 more
doaj   +1 more source

All Six Planets Known to Orbit Kepler-11 Have Low Densities

open access: yes, 2013
The Kepler-11 planetary system contains six transiting planets ranging in size from 1.8 to 4.2 times the radius of Earth. Five of these planets orbit in a tightly-packed configuration with periods between 10 and 47 days.
Agol, Eric   +16 more
core   +1 more source

Rock falls impacting railway tracks. Detection analysis through an artificial intelligence camera prototype [PDF]

open access: yes, 2017
During the last few years, several approaches have been proposed to improve early warning systems for managing geological risk due to landslides, where important infrastructures (such as railways, highways, pipelines, and aqueducts) are exposed elements.
Fantini, Andrea   +2 more
core   +3 more sources

Spatiotemporal evolution, mineralogical composition, and transport mechanisms of long-runout landslides in Valles Marineris, Mars [PDF]

open access: yes, 2020
Long-runout landslides with transport distances of >50 km are ubiquitous in Valles Marineris (VM), yet the transport mechanisms remain poorly understood.
Ehlmann, Bethany L.   +2 more
core  

Dynamic classification method for TBM cutting face rock mass boreability based on tunneling characteristics and multi-criteria decision analysis

open access: yesResults in Engineering
Current rock mass classification methods are primarily suitable for drill-and-blast tunnels. To meet the demand for rapid perception of geological changes in TBM-constructed tunnels, a dynamic classification method for rock mass boreability at the TBM ...
Yaxu Wang   +3 more
doaj   +1 more source

Automated rock mass condition assessment during TBM tunnel excavation using deep learning

open access: yesScientific Reports, 2022
Rock mass condition assessment during tunnel excavation is a critical step for the intelligent control of tunnel boring machine (TBM). To address this and achieve automatic detection, a visual assessment system is installed to the TBM and a lager in-situ
Liang Chen   +4 more
doaj   +1 more source

NUMERICAL SIMULATION OF JOINTED ROCK MASS IN GEOMECHANICAL PROBLEMS [PDF]

open access: yes, 2018
Study the possibility of realistically numerical simulation of a jointed rock mass and estimate the design rock mass strength involving discontinuity surface conditions and various shapes and sizes of rock ...
BABETS, Dmytro   +9 more
core  

Rock flows [PDF]

open access: yes
Rock flows are defined as forms of spontaneous mass movements, commonly found in mountainous countries, which have been studied very little. The article considers formations known as rock rivers, rock flows, boulder flows, boulder stria, gravel flows ...
Matveyev, S. N.
core   +1 more source

A study of energy scavenging strategy in a tapping tree power [PDF]

open access: yes, 2014
Energy harvesting has become one of the newest research attraction for both academic and industry fields. The energy is captured from external sources (thermal, wind, solar, vibration and hydrodynamic) and the energy source for energy harvesters is ...
Abdullah Alhamzi, Belal Mohammed
core  

A Platform for Proactive, Risk-Based Slope Asset Management, Phase II [PDF]

open access: yes, 2015
INE/AUTC 15 ...
Cunningham, Keith   +3 more
core  

Home - About - Disclaimer - Privacy