A factor limiting preliminary rockfall hazard mapping at regional scale is often the lack of knowledge of potential source areas. Nowadays, high resolution topographic data (LiDAR) can account for realistic landscape details even at large scale. With such ...

The 30 M m³ rockslide that occurred on the east face of Turtle Mountain in the Crowsnest Pass area (Alberta) in 1903 is one of the most famous landslides in the world. In this paper, the structural features of the South part of Turtle Mountain are ...

In nearly 240 years 53 landslides have occurred along the Quebec City Promontory, causing 88 fatalities mainly by rockfalls. In October 2004 a rockfall reached the road close to the 1889 rockfall event which killed 35 people and injured 30 others. Using a ...

In this paper, is explored the effect of slope geometry and rockfall frequency on the rockfall hazard zoning.

<p>Based on the assumption that major class of rock instabilities are created by discontinuities, a method is proposed to estimate the fracture density by means of a digital elevation model (DEM). By using the mean orientation, the mean spacing and the mean ...

<p>The need for monitoring slope movements increases with the increasing need for new areas to inhabit and new land management requirements. Rock-slope monitoring implies the use of a database, but also the use of other tools to facilitate the analysis of ...

<p>About 22 mio m³ of rock fell from a cliff near the village of Randa (10 km north of Zermatt, Switzerland) on 18 April 1991. A second retrogressive rockslide of about 7 miom³ followed on 9 May 1991. At present, a rock mass situated ...

<p>After the presentation of the tools used to compute these areas, the paper focuses on two methods developed for a preliminary hazard mapping, one at regional scale and the other at local scale.</p>

A posteriori studies of rock slope instabilities generally show that rockfalls do not occur at random locations: the failure zone can be classified as sensitive from geomorphological evidence. Zones susceptible to failure can therefore be detected. Effects ...

<p>Terrestrial laser scanner has been used to detect rock falls greater than 0.01 m³ which have occurred during some years on a thin-bedded limestone cliff of the Subalpine Ranges, French Alps. Spatial- temporal rock fall frequencies have been determined ...