Results 41 to 50 of about 13,177 (170)

Evaluation of potential rock falls with three-dimensional analysis: Example of Oltanbey and Hasanbey districts (Gümüşhane city center)

open access: yesBulletin of the Mineral Research and Exploration, 2022
The central district campus of Gümüşhane, located on the Trabzon-Erzurum Highway, has a steep topography, and because of the effect of climatic and morphological structure, frequent rockfall events can cause loss of life and property from time to time ...
Selçuk Alemdağ   +2 more
doaj   +1 more source

Investigating submerged morphologies by means of the low-budget “GeoDive” method (high resolution for detailed 3D reconstruction and related measurements) [PDF]

open access: yes, 2018
Geophysical methods allow to collect geological data on lake and sea bottoms and characterize large areas, even at high depths, but with high costs.
Crognale, Jacopo   +2 more
core   +1 more source

Investigation of rockfall-prone road cut slope near Lengpui Airport, Mizoram, India

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2019
Rockfall is one of severe natural hazards that are frequently reported in northeast region of India. It carries rock block falling from the cliff with high velocities and energies which can result in damages to vehicles, disruption to transportation ...
A.K. Verma   +4 more
doaj   +1 more source

Statistical analysis of rockfall volume distributions: implications for rockfall dynamics. [PDF]

open access: yes, 2003
International audienceWe analyze the volume distribution of natural rockfalls on different geological settings (i.e., calcareous cliffs in the French Alps, Grenoble area, and granite Yosemite cliffs, California Sierra) and different volume ranges (i.e ...
Dussauge, C.   +2 more
core   +3 more sources

Numerical and experimental study on P‐wave propagation across a rock joint with different orientations

open access: yesDeep Underground Science and Engineering, EarlyView.
Joint orientation significantly affects P‐wave velocity, with the highest velocity at zero‐degree angles, decreasing to 30° as the angle increases. The velocity increases slightly from 30 to 45 degrees but sharply decreases from 45 to 90 degrees. Abstract Determination of the required parameters in different science contexts using the ultrasonic wave ...
Yaghoob Zarei   +4 more
wiley   +1 more source

Numerical Simulation of a Shed-Tunnel Structure’s Dynamic Response to Repeated Rockfall Impacts Using the Finite Element–Smoothed Particle Hydrodynamics Method

open access: yesBuildings
In practical engineering, a shed-tunnel structure often encounters repeated impacts from rockfall during its whole service life; therefore, this research focuses on exploring the dynamic response characteristics of shed-tunnel structures under repeated ...
Hao Zhao, Zepeng Lyu, Hongyan Liu
doaj   +1 more source

Experimental Investigation of Moisture Movement During Freeze–Thaw Cycles and Its Effect on Physical Rock Weathering in Low‐Porosity Alpine Limestone

open access: yesPermafrost and Periglacial Processes, EarlyView.
ABSTRACT The progressive weakening of alpine rockwalls through subcritical cracking, driven by repeated low‐magnitude stress processes, plays a key role in alpine rock weathering. Laboratory studies using acoustic emission (AE) monitoring have shown that thermal stresses from freeze–thaw cycling induce crack propagation, with recent work highlighting ...
Andrew Mitchell, Oliver Sass
wiley   +1 more source

Rockfall hazard in the Imja Glacial Lake, eastern Nepal

open access: yesGeoenvironmental Disasters, 2020
In Nepal, rockfall related studies are rarely conducted and are limited to the landslide study along with few case studies on rockfall events. Rockfall problems in Nepal are more frequent in the Higher Himalayan region than Midland and Lesser Himalayan ...
Durga Khatiwada, Ranjan Kumar Dahal
doaj   +1 more source

QuaRRi: a new methodology for rock-fall risk analysis and management in quarry exploitation [PDF]

open access: yes, 2010
Rockfall is one of the most critical geological events that can affect quarrying activities. Nevertheless, few tools are currently available to help designers and managers correctly define the risk conditions and quantify the advantages, in terms of ...
Borio, Luca   +3 more
core  

A cellular automaton for the factor of safety field in landslides modeling [PDF]

open access: yes, 2006
Landslide inventories show that the statistical distribution of the area of recorded events is well described by a power law over a range of decades.
Cataudella, V.   +4 more
core   +1 more source

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