A5011261539- Landslides and related hazards
- Rock Mechanics and Modeling
- Geotechnical Engineering and Analysis
- Soil and Unsaturated Flow
- Hydrology and Sediment Transport Processes
- Cryospheric studies and observations
- Image Processing and 3D Reconstruction
- Dam Engineering and Safety
- Tunneling and Rock Mechanics
- 3D Surveying and Cultural Heritage
- Soil erosion and sediment transport
- Remote Sensing and LiDAR Applications
- Computer Graphics and Visualization Techniques
- Flood Risk Assessment and Management
- Geological and Geophysical Studies Worldwide
- Archaeological and Historical Studies
- Archaeological Research and Protection
- Geophysical Methods and Applications
- Mineral Processing and Grinding
- Geomechanics and Mining Engineering
- Archaeological and Geological Studies
- Karst Systems and Hydrogeology
- Geotechnical and construction materials studies
- Geotechnical and Geomechanical Engineering
- earthquake and tectonic studies
Universitat Politècnica de Catalunya
2015-2023
FC Barcelona
2023
International Center for Numerical Methods in Engineering
2020
Unmanned Aerial Systems, or drones, are very helpful tools for managing open-pit mining operations and developing ecological restoration activities. This article presents a method identifying water erosion processes in active quarries by means of drone imagery remote sensing, the absence pre-existing mapping comparison. A Digital Elevation Model (DEM) with spatial resolution (SR) >10 cm an orthophoto SR >2.5 were generated from images captured their subsequent photogrammetric...
Abstract Fragmentation is a common feature of rockfall that exerts strong control on the trajectories generated blocks, impact energies, and runout. In this paper, we present set four real-scale tests aimed at studying fragmentation rocky from global design field procedure to data analysis main results. A total 124 limestone, dacite, or granite blocks ranging between 0.2 5 m 3 were dropped different heights (8.5 23.6 m) onto slopes with shapes (single double bench) slope angles (42º 71º)....
The analysis of seismic signals obtained from near‐source triaxial accelerometer recordings two sets single‐block rockfall experiments is presented. tests were carried out under controlled conditions in quarries northeastern Spain; the first test (Foj limestone quarry, Barcelona), 30 blocks released with masses ranging between 475 and 11,480 kg. second (Ponderosa andesite Tarragona) consisted release 44 466 to 13,581 An three high‐speed video cameras deployed, so that trajectories,...
In this paper, we present the upgraded version of RockGIS, a stochastic program for numerical simulation rockfalls and their fragmentation, based on fractal model. The code has been improved to account range fragmentation scenarios, depending impact conditions. simulation, parameters model that define sizes generated fragments were computed at each according kinematic performance was verified validated by real-scale rockfall tests performed in quarry. consisted release 21 limestone blocks....
Real-scale fragmentation tests provide high quality data in order to study the pattern of rock blocks. In carried out, initial mass, terms both volume and shape, was reconstructed by means 3D photogrammetry. The fragments size distribution bocks tested measured hand using a tape. drop were performed four different sites, releasing total 124 blocks measuring 2907 fragments. obtained fragment distributions may be well fitted power laws. survival rate (Sr), which is proportion remaining block...
Water reservoirs play a crucial role in providing important services, but they are facing increasing vulnerability due to the impacts of climate change. Changes precipitation patterns affecting quantity and quality water reservoirs. Sedimentation, which is one main impacts, reduces reservoir's storage capacity. act as man-made sediment traps, with amount sediments trapped being directly proportional size body. Most produced watershed accumulated at bottom reservoir, leading decrease In...
In this contribution, we first present the tool RockGIS, which is a stochastic program for rockfall propagation simulation that takes fragmentation into account considering fractal laws.The results of real-scale field tests and several natural events inventoried have led to formulation new model has been implemented RockGIS code.The parameters power law define sizes generated fragments are computed at each impact according kinematic conditions.To calibrate model, used data from test...
<p>A rockfall is a rapid mass movement generated by the detachment of rock volume from slope that falls, rolls and bounces during its propagation downhill. Rockfalls have great destructive potential due to high kinetic impact energies may reach propagation. are frequent instability processes in road cuts, open pit mines quarries, steep slopes cliffs. The initial mobilized can be either single massive block or set blocks defined joints present massif. During propagation,...