The development of surface steps during mining subsidence: “Not due to fault reactivation”
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A Rock Engineering System Based Abandoned Mine Instability Assessment Index with Case Studies for Waihi Gold Mine
2022, Engineering GeologyCitation Excerpt :Abandoned mine geotechnical instabilities and the associated problems are not just limited to Australia. Studies have shown that the post-mining instabilities and the subsidence arising from abandoned mine workings have been among the dominant issues damaging the surface and subsurface structures and infrastructure in mining areas (Donnelly et al., 2001; Edmonds, 2020; Helm et al., 2013; Pilecki et al., 2021; Waltham and Swift, 2004; Waltham et al., 2011) and impacting the environment (Donnelly and Reddish, 1994; Edmonds, 2018; Salmi et al., 2017c) all around the world. Geotechnical instabilities can generate localised or large-scale ground movements which often generate surface subsidences.
Experimental study on distributed optical fiber sensing monitoring for ground surface deformation in extra-thick coal seam mining under ultra-thick conglomerate
2019, Optical Fiber TechnologyCitation Excerpt :Coal seam mining leads to the gradual movement, bending and destruction of the overburden rock stratum in mine goaf. With the increase of mine goaf range, the deformation of overburden rock stratum begins to spread to the ground surface, thus forming ground surface subsidence basin [3]. Due to the influence of high mining intensity, large mining depth and ultra-thick conglomerate, the law of mining surface movement and deformation has obvious particularity in western Henan province mining area [4].
Hangingwall surface subsidence at the Kiirunavaara Mine, Sweden
2011, Engineering GeologyCitation Excerpt :This means that there is a localized zone of strain concentration between two surveying stations. This effect has been documented as abnormal deformation in trough subsidence where surface steps are formed over contrasting lithological contacts and faults (Donnelly and Reddish, 1994; Donnelly, 2006). Using a lineament map shown in Fig. 15, the zones of strain concentrations were indicated.
The monitoring and prediction of mining subsidence in the Amaga, Angelopolis, Venecia and Bolombolo Regions, Antioquia, Colombia
2001, Engineering GeologyCitation Excerpt :The collapse of the abandoned room and pillar workings, bell-pits, shafts and adits has resulted in the generation of crown holes. The reactivation of geological faults, which has during mining subsidence in Europe (Donnelly, 1994) and The Ukraine (Donnelly and Reddish, 1994), was also observed in Colombia. Mining-induced fault reactivation has generated topographic fault scarps, compression humps and ground fissures.
Linear discontinuous deformations created on the surface as an effect of underground mining and local geological conditions-case study
2020, Bulletin of Engineering Geology and the EnvironmentMining-induced fault reactivation in the UK
2020, Geological Society Engineering Geology Special Publication