Sentinel-1 Data for Monitoring a Pre-failure Event of Tailings Dam

Ammirati, Lorenzo; Mondillo, Nicola; Calcaterra, Domenico; Martire, Diego Di

doi:10.1007/978-3-030-64908-1_13

Cited by 2 publications

(1 citation statement)

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“…Specifically, among the different types of remote sensing techniques, the Advanced Differential Interferometric Synthetic Aperture Radar (A-DInSAR- Franceschetti et al 1992) proved to be a very powerful tool, being sensitive to sub-centimetric ground movements (Colesanti et al 2006) and/or terrain displacements, induced by landslides (Wasowski and Bovenga 2022;Scifoni et al 2016;Pappalardo et al 2018;Giardina et al 2019;Guerriero et al 2019), earthquakes (De Novellis et al 2018;Zhao et al 2021), volcanoes (Foumelis et al 2016Casu et al 2019) and valid to detect harm to structures and infrastructures (Milillo et al 2018;Ullo et al 2019;Pastor et al 2019;Miano et al 2021). In the last three decades, A-DinSAR has been applied also in mining areas to detect subsidence due to underground activity (Yue et al 2011;Du et al 2016;Ammirati et al 2020;Pawluszek et al 2020;Chen et al 2021), monitoring the stability of tailings dam (Necsoiu et al 2015;Gama et al 2019;Ammirati et al 2021), and to identify surface movements in open-pit mines (Paradella et al 2015;Carlà et al 2018). The scientific community has studied many cases of mining subsidence in coal districts (Salmi et al 2017;Jing et al 2018;Zingano et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Semi-real time systems for subsidence monitoring in areas affected by underground mining: the example of the Nuraxi-Figus coal district (Sardinia, Italy)

Ammirati

Martire

Bordicchia³

et al. 2022

Int J Coal Sci Technol

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Underground mining can produce subsidence, which can be coincident with mining activities or delayed in response to the time-dependent deformation of the rocks. Therefore, in these cases, it is essential to effectively monitor the soil deformations at different times during and after mining activity. In the present work, an integrated approach based on geotechnical numerical modeling and Advanced Differential Interferometric Synthetic Aperture Radar (A-DInSAR) method has been applied to detect, study and monitor the subsidence related to mining activity in the Nuraxi Figus coal district (Sardinia, Italy). Two datasets of high-resolution COSMO-Skymed images were acquired, respectively in two covering periods: from 2011 and 2014, and from 2013 to 2020. The A-DInSAR results show that the predominant displacement rates are located in correspondence with the panels. The cumulated satellite-based LoS displacements vary in the first period between − 130 and + 28 mm and − 293 and + 28.4 mm, while, during the second period between − 6.9 and + 1.6 mm and − 8.72 and + 4.33 mm in ascending and descending geometries, respectively. The geotechnical numerical model allowed to obtain a value for the maximum expected. By using the vertical and horizontal components it was possible to reconstruct the kinematics of the deformation considering three phases: pre-mining, syn-mining, and post-mining activity. The temporal evolution of displacements started during the mining extraction in 2011, achieved the major values in correspondence of post-mining operations, during the period from 2013 to 2014 and continued slowly until 2020. The near real-time monitoring system applied in this study proved to be very useful for detecting subsidence during the mining activity and the post-mining period.

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