Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Pablo Segarra"'
Autor:
Alberto Fernández, José A. Sanchidrián, Pablo Segarra, Santiago Gómez, Enming Li, Rafael Navarro
Publikováno v:
International Journal of Mining Science and Technology, Vol 33, Iss 5, Pp 555-571 (2023)
A procedure to recognize individual discontinuities in rock mass from measurement while drilling (MWD) technology is developed, using the binary pattern of structural rock characteristics obtained from in-hole images for calibration. Data from two un
Externí odkaz:
https://doaj.org/article/22203641e60048a5a32af34e410750c5
Publikováno v:
Circular Economy, Vol 2, Iss 3, Pp 100053- (2023)
Mining activities tend to generate various waste including tailings, waste water and waste rock. Efficient management and disposal of these waste materials are critical to minimize their environmental impact and ensure the sustainable operation of mi
Externí odkaz:
https://doaj.org/article/10a5413db2df4b548442d49886dd8705
Publikováno v:
Rock Mechanics and Rock Engineering. 56:3255-3278
A discrete fracture network (DFN) model based on non-parametric kernel density estimators (KDE) and directional-linear statistics is developed. The model provides a characterization of the fracture network with distributions of fracture orientation a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4636d606222382362c791936f460ff96
https://doi.org/10.1007/s00603-022-03194-y
https://doi.org/10.1007/s00603-022-03194-y
Autor:
Yolanda Sánchez-Palencia, Fernando Barrio-Parra, Luis A. Torres, Miguel Izquierdo-Díaz, Lucía Arévalo-Lomas, David Bolonio, María Sánchez-Canales, Luis J. Fernández-Gutiérrezdelalamo, Pablo Segarra-Catasús, María Jesús García-Martínez, Laureano Canoira
Publikováno v:
INTED2023 Proceedings.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a34aec497e31ce8d79e8623ccaa367e4
https://doi.org/10.21125/inted.2023.1119
https://doi.org/10.21125/inted.2023.1119
Publikováno v:
Springer
The modelling of discontinuities in rock mass is undertaken with different measurement techniques and used to determine the in situ block size distribution (IBSD). Two monitoring techniques are employed: televiewer logging of boreholes and photogramm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::42304c04bff6e3e8e0117e9a0eb0185c
https://zenodo.org/record/6907063
https://zenodo.org/record/6907063
Autor:
Juan Ramón Colmenero Navarro, Rajib Ghosh, José A. Sanchidrián, Pablo Segarra, Håkan Schunnesson, Daniel Johansson
Publikováno v:
International Journal of Rock Mechanics and Mining Sciences. 119:180-192
Currently, the charging procedure for sublevel caving mining is carried out with no prior information of the rock mass condition. Thus, engineers are blindsided to unexpected rock conditions and ill-prepared to address issues associated with collapsi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a77a283b6a58f2c89e8fa9ef79c61c25
https://doi.org/10.1016/j.ijrmms.2019.03.026
https://doi.org/10.1016/j.ijrmms.2019.03.026
Autor:
Juan Ramón Colmenero Navarro, José A. Sanchidrián, Pablo Segarra, Lina M. López, Ricardo Castedo
Publikováno v:
Tunnelling and Underground Space Technology. 83:254-261
At present, modern jumbos equipped with MWD (Measure While Drilling) provide the position of the blastholes collar and, from the drill length and the azimuth and inclination angles (monitored outside the blasthole), the theoretical end position of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3e8e4be71f3df84caebbfe89006694c5
https://doi.org/10.1016/j.tust.2018.10.003
https://doi.org/10.1016/j.tust.2018.10.003
Autor:
Juan Ramón Colmenero Navarro, Philipp Hartlieb, José A. Sanchidrián, Thomas Seidl, Pablo Segarra, Clara Godoy, Peter Schimek, Paulo Couceiro
Publikováno v:
Rock Mechanics and Rock Engineering
Blasting performance is influenced by mechanical and structural properties of the rock, on one side, and blast design parameters on the other. This paper describes a new methodology to assess rock mass quality from drill-monitoring data to guide blas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::50ec262111003a79f58b7d65ca8df192
Publikováno v:
E3S Web of Conferences, Vol 266, p 07004 (2021)
This study analyses the frequency content of vibrations from blasting in the near field using a vibration prediction model called full-field solution (FFS). For that purpose, the frequency content of recorded signals and synthetic waveforms obtained
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1bb7d6b7dbbb285aa75c574cd88b77f4
https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/42/e3sconf_ti2021_07004.pdf
https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/42/e3sconf_ti2021_07004.pdf
Publikováno v:
Tunnels and Underground Cities: Engineering and Innovation meet Archaeology, Architecture and Art ISBN: 9781003031635
Tunnels and Underground Cities: Engineering and Innovation meet Archaeology, Architecture and Art ISBN: 9780429424441
Tunnels and Underground Cities: Engineering and Innovation meet Archaeology, Architecture and Art ISBN: 9780429424441
This paper assesses the use of measurement while drilling (MWD) to predict the potential over- and under-excavated zones created in the contour of a tunnel developed by drill and blasting. Scanner profiles of the excavated sections have been compared
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::608bcf4a33a8767a703cba13eec60c17
https://doi.org/10.4324/9781003031635-23
https://doi.org/10.4324/9781003031635-23