Results 51 to 60 of about 8,685 (236)

Formation of safety conditions for development of deposits by open mining [PDF]

open access: yes, 2018
The researched parameters of the catching device, which ensures the safe operation of equipment and working people in deep open pits, where are formed the benches by steep dipping layers. For obtaining the results, the following methods were
Anisimov, Oleh   +12 more
core   +1 more source

Thermal structure of a gas-permeable lava dome and timescale separation in its response to perturbation [PDF]

open access: yes, 2009
The thermal boundary layer at the surface of a volcanic lava dome is investigated through a continuum model of the thermodynamic advection diffusion processes resulting from magmatic gas flow through the dome matrix.
Adrian J. Matthews   +49 more
core   +1 more source

A thermodynamical model for rainfall-triggered volcanic dome collapse [PDF]

open access: yes, 2004
Dome-forming volcanic eruptions typically involve the slow extrusion of viscous lava onto a steep-sided volcano punctuated by collapse and the generation of hazardous pyroclastic flows.
Adrian J. Matthews   +14 more
core   +1 more source

Characteristics of rockfall trajectory and hazard assessment in western Hubei Province: A case study of the Wapo collapse area in Yuan’an County

open access: yesZhongguo dizhi zaihai yu fangzhi xuebao, 2022
Taking the Wapo collapse area in Yuan’an County as an example, a three-dimensional model was established by drone aerial photography, geological survey and field mapping.
Wei HUANG   +7 more
doaj   +1 more source

Critical rainfall conditions for the initiation of torrential flows: results from the Rebaixader catchment (Central Pyrenees) [PDF]

open access: yes, 2016
Torrential flows like debris flows or debris floods are fast movements formed by a mix of water and different amounts of unsorted solid material. They generally occur in steep torrents and pose high risk in mountainous areas.
Abanco Martínez de Arenzana, Claudia   +3 more
core   +2 more sources

Rockfall Susceptibility Assessment and Landscape Evolution of San Nicola Island (Tremiti Islands, Southern Adriatic Sea, Italy)

open access: yesGeosciences, 2023
San Nicola Island, pertaining to the Tremiti Archipelago (Southern Adriatic Sea, Italy), is widely affected by cliff retreat and gravitational phenomena which severely threaten its monumental historical and natural value.
Jacopo Cinosi   +5 more
doaj   +1 more source

Review and prospects of shear test of bolted rock joints

open access: yesDeep Underground Science and Engineering, EarlyView.
The laboratory shear test equipment, test method, and numerical simulation of bolted rock joints were summarized. The shortcomings and limitations of the current research were analyzed, and the research prospects were proposed. Abstract Rock bolting is a critical approach in geotechnical engineering for supporting weak rocks.
Shulin Ren   +4 more
wiley   +1 more source

Brief communication [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2010
Numerous rockfalls were detected in the Las Cuevas valley, Argentina, after the 27 February 2010 earthquake in Chile. Live rockfalls were observed during aftershocks of 11 March 2010.
M. Jaboyedoff, V. Baumann, E. Wick
doaj   +1 more source

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

A Novel Approach to Assess the Influence of Rockfall Source Areas: The Case Study of Bardonecchia (Italy)

open access: yesGeosciences, 2023
In this research article, we propose a practical methodology for evaluating the affecting potential of detachment areas in rockfalls. Our innovative approach combines an assessment of the visibility of rockfall source areas, with reference to specific ...
Lorenzo Milan   +3 more
doaj   +1 more source

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