Now showing items 1-20 of 34

    • 3D analysis of a fragmental rockfall 

      Ruiz Carulla, Roger; Matas Casado, Gerard; Corominas Dulcet, Jordi; Lantada, Nieves (Springer Nature, 2021)
      Conference report
      Open Access
      Fragmentation in a rockfall event influence the total number of fragments, the mass distribution, and the impact energies and runouts. Then, the probability of impact and hazard characterization should consider fragmentation. ...
    • A fractal fragmentation model for rockfalls 

      Ruiz Carulla, Roger; Corominas Dulcet, Jordi; Mavrouli, Olga Christina (2017-06)
      Article
      Open Access
      The impact-induced rock mass fragmentation in a rockfall is analyzed by comparing the in situ block size distribution (IBSD) of the rock mass detached from the cliff face and the resultant rockfall block size distribution ...
    • A methodology to obtain the block size distribution of a large rockfall deposit 

      Ruiz Carulla, Roger; Corominas Dulcet, Jordi; Mavrouli, Olga Christina (2014)
      Conference lecture
      Restricted access - publisher's policy
      The block size distribution produced in a rockfall event is necessary for the study of the trajectories, run-out, the impact energies and for the quantitative assessment of the rockfall hazard. For large rockfall deposits, ...
    • A methodology to obtain the block size distribution of fragmental rockfall deposits 

      Ruiz Carulla, Roger; Corominas Dulcet, Jordi; Mavrouli, Olga Christina (2015-06-30)
      Article
      Open Access
    • An empirical approach to rockfall fragmentation 

      Corominas Dulcet, Jordi; Ruiz Carulla, Roger; Mavrouli, Olga Christina (2015)
      Conference lecture
      Restricted access - publisher's policy
      The impact-induced rock mass fragmentation in a rockfall is analyzed by comparing the In Situ Block Size Distribution (IBSD) at the cliff face and the Rockfall Block Size Distribution (RBSD) on the slope. The IBSD is ...
    • Analysis of fragmentation of rock blocks from real-scale tests 

      Ruiz Carulla, Roger; Corominas Dulcet, Jordi; Gili Ripoll, José Antonio; Matas Casado, Gerard; Lantada, Nieves; Moya Sánchez, José; Prades Valls, Albert; Núñez Andrés, María Amparo; Buill Pozuelo, Felipe; Puig i Polo, Càrol (2020-08)
      Article
      Open Access
      Real-scale fragmentation tests provide high quality data in order to study the fragmentation pattern of rock blocks. In the tests carried out, the initial rock mass, in terms of both volume and shape, was reconstructed by ...
    • Analysis of rock block fragmentation by means of real-scale tests 

      Ruiz Carulla, Roger; Matas Casado, Gerard; Prades Valls, Albert; Gili Ripoll, José Antonio; Corominas Dulcet, Jordi; Lantada, Nieves; Buill Pozuelo, Felipe; Mavrouli, Olga Christina; Núñez Andrés, María Amparo; Moya Sánchez, José (Sage, 2016)
      Conference lecture
      Restricted access - publisher's policy
    • Analysis of rockfalls by means of a fractal fragmentation model 

      Ruiz Carulla, Roger; Corominas Dulcet, Jordi (2020-03)
      Article
      Open Access
      We present the performance of the rockfall fractal fragmentation model (RFFM) developed by Ruiz-Carulla et al. (Landslides 14(3):875–889. doi.org/10.1007/s10346-016-0773-8, 2017) and based on Perfect (Eng Geol 48:185–198, ...
    • Análisis de estabilidad y simulaciones de desprendimientos en canteras a partir de modelos 3D obtenidos con vuelos de dron 

      Ruiz Carulla, Roger; Camara Zapata, Eduardo; Martínez Bofill, Joan (International Centre for Numerical Methods in Engineering (CIMNE), 2022)
      Conference report
      Open Access
      Se presentan dos casos en canteras donde se trabaja a partir de un modelo 3D del terreno obtenido mediante la reconstrucción fotogramétrica con dron. El primer caso se centra en la delimitación detallada de una masa rocosa ...
    • Caracterització de la fragmentació en els despreniments rocosos 

      Ruiz Carulla, Roger (Universitat Politècnica de Catalunya, 2013-12-13)
      Master thesis
      Open Access
      El present treball està centrat en l'estudi, la comprensió i l'anàlisi del procés de fragmentació de blocs rocosos al llarg del seu recorregut en despreniments i la distribució de blocs rocosos que en resulta. En concret, ...
    • Diseño y primeros resultados de tres ensayos de lanzamiento de bloques de roca para el estudio de la fragmentación 

      Gili Ripoll, José Antonio; Matas Casado, Gerard; Corominas Dulcet, Jordi; Núñez Andrés, María Amparo; Lantada, Nieves; Ruiz Carulla, Roger; Mavrouli, Olga; Buill Pozuelo, Felipe; Moya Sánchez, José; Prades Valls, Albert; Puig i Polo, Càrol; Martínez Bofill, Joan; Salo Salgado, Lluis (Centre Internacional de Mètodes Numèrics en Enginyeria (CIMNE), 2017)
      Conference report
      Open Access
      RESUMENLa caída de bloques de roca sobre infraestructuras y zonas urbanizadas causa elevados daños y alguna víctima cada año en nuestro país. Los modelos de propagación existentes no tienen en cuenta la fragmentación durante ...
    • Documenting rock mass failure with UAV during an emergency phase: Castell de Mur case study 

      Ruiz Carulla, Roger; Corominas Dulcet, Jordi (2021)
      Conference lecture
      Restricted access - publisher's policy
      The understanding of the conditioning factors and of the mechanisms involved in rockfalls are requirements for a successful risk assessment and for the prevention of future events. In that respect, the detailed documentation ...
    • Drone-based identification of erosive processes in open-pit mining restored areas 

      Padró Garcia, Joan-Cristian; Cardozo, Johnsson; Montero, Pau; Ruiz Carulla, Roger; Alcañiz Baldellou, Josep Maria; Serra Sangüesa, Dèlia; Carabassa, Vicenç (Multidisciplinary Digital Publishing Institute (MDPI), 2022-02)
      Article
      Open Access
      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 for identifying water erosion processes ...
    • Experiencias con drones para el estudio de movimientos de ladera 

      Ruiz Carulla, Roger; Corominas Dulcet, Jordi; Hurlimann Ziegler, Marcel (International Centre for Numerical Methods in Engineering (CIMNE), 2017)
      Conference report
      Open Access
      La tecnología de los vehículos aéreos no tripulados o drones (UAV) se ha desarrollado de forma exponencial los últimos años. Su uso para la toma de fotografías y el posterior tratamiento con técnicas de fotogrametría ...
    • Experimental study on rockfall fragmentation: in situ test design and first results 

      Gili Ripoll, José Antonio; Ruiz Carulla, Roger; Matas Casado, Gerard; Corominas Dulcet, Jordi; Lantada, Nieves; Núñez Andrés, María Amparo; Mavrouli, Olga Christina; Buill Pozuelo, Felipe; Moya Sánchez, José; Prades Valls, Albert; Moreno, Sjædric (2016)
      Conference lecture
      Restricted access - publisher's policy
      Fragmentation is a common feature of rockfalls that exerts a strong influence over the trajectories of the generated blocks, the impact energies and the runout. Real scale rockfall tests have traditionally been designed ...
    • Fragmentación fractal en desprendimientos rocosos 

      Ruiz Carulla, Roger; Corominas Dulcet, Jordi (International Centre for Numerical Methods in Engineering (CIMNE), 2022)
      Conference report
      Open Access
      Se presenta el fenómeno de la fragmentación en desprendimientos rocosos, su análisis y un modelo para entender y reproducir la fragmentación. En 2017 se publicó una primera versión del modelo de fragmentación fractal ...
    • Influencia de los modelos 3D en la determinación de familias de discontinuidades en macizos rocosos 

      Buill Pozuelo, Felipe; Núñez Andrés, María Amparo; Ruiz Carulla, Roger; Lantada, Nieves (Departamento de Cultura y Política Lingüística del País Vasco, 2021)
      Conference report
      Open Access
      El uso de técnicas geomáticas y modelos 3D del terreno en el estudio de riesgos naturales se ha incrementado notablemente en las últimas décadas. En este trabajo nos centramos en la caracterización de discontinuidades del ...
    • Integració de bases de dades referents a informació geotècnica i al comportament de talussos en un projecte SIG 

      Ruiz Carulla, Roger (Universitat Politècnica de Catalunya, 2012-06-25)
      Minor thesis
      Open Access
      Els sistemes informàtics actuals permeten registrar una gran quantitat de dades que dia a dia van fent créixer les bases de dades de diferents organismes de l’administració. Els sistemes d’emmagatzematge i tractament ...
    • La avalancha de rocas de la Coma d'Espòs, Pirineo Central, Lleida: un evento prehistórico catastrófico 

      Corominas Dulcet, Jordi; Ruiz Carulla, Roger (Instituto Geológico y Minero de España (IGME), 2016)
      Conference report
      Restricted access - publisher's policy
      Rock avalanches are extreme phenomena present in ridges with steep slopes and height. In the Iberian Peninsula various deposits have been described and interpreted as rock avalanches, especially given its magnitude and ...
    • Laboratory test to study the effect of comminution in rockfalls 

      Matas Casado, Gerard; Parra, E.; Lantada, Nieves; Gili Ripoll, José Antonio; Ruiz Carulla, Roger; Corominas Dulcet, Jordi; Moya Sánchez, José; Prades Valls, Albert; Buill Pozuelo, Felipe; Núñez Andrés, María Amparo; Puig i Polo, Càrol (2021)
      Conference lecture
      Restricted access - publisher's policy
      Fragmentation in rockfalls reduces the size of the blocks and increases the number of fragments. It affects the runout and the impact energies, having implications in the associated hazard and therefore in the subsequent ...