Szczegóły publikacji
Opis bibliograficzny
Spatio-temporal distribution of land subsidence and water drop caused by underground exploitation of mineral resources / Artur GUZY, Ahmed Wedam Ahmed, Agnieszka MALINOWSKA // W: SGEM 2018 : 18th international multidisciplinary scientific geoconference : 3–6 December, 2018, Vienna, Austria : conference proceedings. Vol. 18, Science and technologies in geology, oil and gas exploration ; Water resources, forest ecosystems. Iss. 1.5, Oil and gas exploration, hydrology and water resources forest ecosystems. — Sofia : STEF92 Technology Ltd., cop. 2018. — (International Multidisciplinary Scientific GeoConference SGEM ; ISSN 1314-2704). — ISBN: 978-619-7408-72-0. — S. 467–476. — Bibliogr. s. 475–476, Abstr.
Autorzy (3)
- AGHGuzy Artur
- Ahmed Wedam Ahmed
- AGHMalinowska Agnieszka A.
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 118811 |
|---|---|
| Data dodania do BaDAP | 2019-01-03 |
| Rok publikacji | 2018 |
| Typ publikacji | materiały konferencyjne (aut.) |
| Otwarty dostęp |  |
| Konferencja | 18th international multidisciplinary scientific geoconference |
| Czasopismo/seria | International Multidisciplinary Scientific GeoConference SGEM |
Abstract
Underground exploitation of mineral resources is often carried out in a watered rock mass. Dewatering of rock layers disturbs its geomechanical equilibrium, consequently resulting in deformations occurrence on the terrain surface. Furthermore, modeling of rock strata dewatering and related land subsidence is still a complex issue, mostly due to unambiguous qualitative and quantitative characteristics of rock mass. Presented research aimed at determination of dynamics of hydrogeological changes and land subsidence induced by water withdrawal in fractured rock strata. They were carried out in the area of “Bogdanka” hard coal mine in Poland, at a depth of 1000 m, in a multi-layered aquifer system. Spatio-temporal distribution of depression cone and land subsidence in the period 1982-2018 was analyzed. Furthermore, based on the results of observations of water table in aquifers, land subsidence and geomechanical characteristics of rock mass, trend lines of logarithmic functions were estimated. Afterward, based on logarithmic functions, prediction of water table fluctuation and land subsidence was carried out in the entire area of hard coal mining in the period 2018-2025. Subsequently, a novel time factor was introduced. It determines the delay of deformation occurrence on the terrain surface induced by rock strata dewatering as a function of time and distance from drainage center. Finally, computation results were successfully compared with field data. On the whole, the presented research provide better insight into mechanics of lands subsidence development and water flow in the fractured rock mass due to rock strata dewatering accompanying underground exploitation of mineral resources.
