Results 31 to 40 of about 6,511 (162)

Characterizing geologic and climatic controls on rockfall hazards using an inventory and integrated kinematic and runout model: Skagway, Alaska, USA [PDF]

open access: yesNatural Hazards and Earth System Sciences
Rockfall is common in steep terrain and poses a hazard to nearby communities. While rockfall triggering mechanisms are highly variable and difficult to quantify, the susceptibility of rock slopes to planar, wedge, or toppling failure can be readily ...
I. D. Wachino   +4 more
doaj   +1 more source

A New Methodology for Mapping Past Rockfall Events: From Mobile Crowdsourcing to Rockfall Simulation Validation

open access: yesISPRS International Journal of Geo-Information, 2020
Rockfalls are one of the most common natural hazards in mountainous areas that pose high risk to people and their activities. Rockfall risk assessment is commonly performed with the use of models that can simulate the potential rockfall source ...
Barbara Žabota, Milan Kobal
doaj   +1 more source

Analysis of soil cushion buffering characteristic for rockfall impact force through discrete element numerical simulation

open access: yesZhongguo dizhi zaihai yu fangzhi xuebao
Rock sheds is one of the main engineering solutions for mitigating rockfall disaster in the mountainous regions of western China. Typically, the roof of a rock shed is covered with a soil cushion composed of sand or gravel.
Yu CHEN   +6 more
doaj   +1 more source

Potential Rockfall Source Identification and Hazard Assessment in High Mountains (Maoyaba Basin) of the Tibetan Plateau

open access: yesRemote Sensing, 2023
Potential rockfall source areas are widely distributed in the high mountain areas of the Tibetan Plateau, posing significant hazards to human lives, infrastructures, and lifeline facilities.
Juanjuan Sun   +7 more
doaj   +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

Analysis of Factors Influencing Rockfall Runout Distance and Prediction Model Based on an Improved KNN Algorithm

open access: yesIEEE Access, 2019
The prediction method plays crucial roles in the accurate prediction of rockfall runout range which could improve the protection of endangered residential areas and infrastructure.
Shuai Huang   +3 more
doaj   +1 more source

Spatiotemporal characteristics of ground microtremor in advance of rockfalls

open access: yesScientific Reports, 2022
Identifying cliffs that are prone to fall and providing a sufficient lead time for rockfall warning are crucial steps in disaster risk reduction and preventive maintenance work, especially that led by local governments. However, existing rockfall warning
Yi-Rong Yang   +2 more
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

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  

Slope mass rating-based analysis to assess rockfall hazard on Yogyakarta Southern Mountain, Indonesia

open access: yesGeoenvironmental Disasters, 2020
In the Parangtritis Beach tourism area located in the Southern Mountain of Yogyakarta, karst hills were excavated to build the main accessing road and produce some of long and very steep slopes along the sides of the road.
Karlina Triana, Koko Hermawan
doaj   +1 more source

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