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Analysis of institutional authors

Navarro JCorresponding AuthorSegarra PAuthorSanchidrián JAuthor

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May 29, 2019
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Application of drill-monitoring for chargeability assessment in sublevel caving

Publicated to: INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES. 119 180-192 - 2019-07-01 119(), DOI: 10.1016/j.ijrmms.2019.03.026

Authors:

Navarro, Juan; Schunnesson, Hakan; Ghosh, Rajib; Segarra, Pablo; Johansson, Daniel; Angel Sanchidrian, Jose
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Affiliations

Lulea tekniska Universitet - Author
Lulea Univ Technol, S-97187 Lulea, Sweden - Author
Univ Politecn Madrid, ETSI Minas & Energia, Rios Rows 21, Madrid 28003, Spain - Author
Universidad Politécnica de Madrid - Author
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Abstract

© 2019 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 collapsing boreholes. This results on charging problems and, as consequence, bad fragmentation of the rock after blasting which difficult ore loading and transportation as the gravity flow of the rock is reduced. This paper builds up the work done by Ghosh et al. (IJRMMS, 2018), to classify the geotechnical rock condition into five classes (solid rock, fractured rock, cave-in, minor and major cavity). From it, two applications based on the Measure While Drilling (MWD) technique have been developed: one for geotechnical rock condition of orebodies and the other for predicting the risk of collapse in boreholes. The work of Ghosh et al. has been improved into a geotechnical rock condition block model to simplify the quantitative assessment and automatic recognition of rock trends. A thorough correction of the MWD parameters has been also applied to minimize external influences other than the rock mass. From it, the risk of borehole collapses model has been developed by comparing different combinations of the geotechnical rock condition block-model with the charging length of 102 production fan-holes. The assessment of the number of collapsed and non-collapsed blastholes and the charging length/blasthole length ratio has been used to assign high, medium or low risk of collapse to each combination. The results predict collapses in the first half of the fan-holes for the high risk, collapses in the second half of the fan-hole for the medium risk and no collapses along the hole for the non-risk holes. The two models have been applied in large scale for two orebodies in the Malmberget mine, Sweden, which comprises 20 drifts and 5060 fan shape long-holes.
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Keywords

Block modelExplosivesMeasurement while drilling (mwd)Rock mass conditionUnderground blasting

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2019, it was in position 1/21, thus managing to position itself as a Q1 (Primer Cuartil), in the category Mining & Mineral Processing. Notably, the journal is positioned above the 90th percentile.

From a relative perspective, and based on the normalized impact indicator calculated from World Citations provided by WoS (ESI, Clarivate), it yields a value for the citation normalization relative to the expected citation rate of: 1.64. This indicates that, compared to works in the same discipline and in the same year of publication, it ranks as a work cited above average. (source consulted: ESI Nov 13, 2025)

This information is reinforced by other indicators of the same type, which, although dynamic over time and dependent on the set of average global citations at the time of their calculation, consistently position the work at some point among the top 50% most cited in its field:

  • Weighted Average of Normalized Impact by the Scopus agency: 2.02 (source consulted: FECYT Mar 2025)

Specifically, and according to different indexing agencies, this work has accumulated citations as of 2026-04-05, the following number of citations:

  • WoS: 32
  • Scopus: 35
  • Google Scholar: 50
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Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2026-04-05:

  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 40 (PlumX).
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Leadership analysis of institutional authors

This work has been carried out with international collaboration, specifically with researchers from: Sweden.

There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (NAVARRO MIGUEL, JUAN) and Last Author (SANCHIDRIAN BLANCO, JOSE ANGEL).

the author responsible for correspondence tasks has been NAVARRO MIGUEL, JUAN.

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