Sinkhole hazard maping with the use of Spatial analysis and analitycal hierarhy process in the light of mining-geological factors

Abstract

The problem of sinkhole hazard estimation in the former and present mining areas still remains unsolved. This issue is frequently associated with numerous factors causing that phenomenon. The origin of that factor is not only related to the mining and geological condition of the rock masses in the vicinity of sinkhole. The correct interpretation of grounds for discontinuous deformation occurrence in a given area is particularly important in densely built-up areas. The analyses presented were focused on the identification of risk factors which may have influence on the process of discontinuous deformation occurrence and their spatial analysis. Fuzzy set theory and kernel density estimation support dealing with uncertainty of potential risk factors. The correlation has been established between distribution of this factors and spatial distribution of places where discontinuous deformations occurred. Four the most significant risk factors were taken into account in order to develop probability maps of sinkhole occurrence. Presented approach is based on analytical hierarchy process, which enables integration of that factors. In the investigation both quantitative and qualitative factors were taken into consideration. While modelling discontinuous ground surface deformations, such an approach allows for consideration of complex mining and geological conditions. The effectiveness of the presented solution was verified by comparing probability maps of sinkhole occurrence with the observed sinkholes.

Improvement of Technological Approaches to the Use of a Combined Method for Eliminating Sinkholes over Mining Workings

“…The basis for the creation of a new technology for eliminating sinkholes of the earth's surface with the justification of its design and technological characteristics in order to eliminate the consequences of the impact of coal mine eliminations on the environment based on the use of watered material was the full-scale study of sinkholes over mine workings that open under the influence of the activation of displacement of moisture-filled rocks [11][12][13]. For the purposes of the study, the sample was carried out taking into account the following conditions: the location of the observed objects on land allotments filled with water-filled filling material; permanent or seasonal increase in the level of underground water at the studied objects by more than 2 meters; selection of land plots that are https://doi.org/10.1051/e3sconf /202131501007 E3S Web of Conferences 315, 01007 (2021) VI th International Innovative Mining Symposium maximally deformed by the mining operations carried out on them.…”

Quantitative and Qualitative Research on the Waste from the Mining of Rock Raw Materials in Lower Silesia

“…A review of these applications has been done for example by Vaidya and Kumar [23]. With respect to mining-related problems, noteworthy AHP applications include [24][25][26][27][28][29]. Dey and Ramcharan [24] proposed an AHP based analytical framework for site selection for the expansion of a limestone quarry operation, Ptak [25] employed AHP to construct an evaluation method for the assessment of rock mineral deposits whose development could affect Nature 2000 areas, Gupta and Kumar [26] examined the application of AHP for the selection of an appropriate stoping method for mining underground ore deposit, Sobczyk and Badera [27] studied the possibilities of predicting which of the specified hard coal deposits are relatively less contentious with regard to local economic, social and environmental determinants, Blachowski [28] used AHP in combination with GIS to assess the accessibility of a brown coal deposit for development with respect to environmental and land use functions, and Malinowska and Matonóg [29] tried to estimate the sinkhole hazard in former and present mining areas with AHP.…”

The influence of selected mining and natural factors on the sinkhole creation hazard based on the case study

“…In the paper by (Gutiérrez et al 2008), it has been noted that such extrapolation is not sufficiently verifiable, and thus, proper protection of structures against sinkholes is a better solution. In the paper (Malinowska and Matonóg 2017), the geological conditions that are favourable for the formation of sinkholes and related to human activity have been indicated (the distribution of further exploitations, vibrations due to traffic). In case of separately occurring voids characterized by predictable dimensions and no action of other external factors, calculations may be performed in a relatively simple and reliable method.…”