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Mining-induced subsidence prediction by displacement discontinuity method

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dc.contributor.author Badrul, AKM
dc.contributor.author Alam, YJ
dc.contributor.author Fujii, Y
dc.contributor.author Alam, AKMB
dc.contributor.author Razo, SA
dc.contributor.author Ahmed, SM
dc.contributor.editor Dissanayake, DMDOK
dc.contributor.editor Dassanayake, ABN
dc.date.accessioned 2022-02-28T03:39:49Z
dc.date.available 2022-02-28T03:39:49Z
dc.date.issued 2020-12
dc.identifier.citation Badrul, A.K.M., Alam, Y.J., Fujii, Y., Alam, A.K.M.B., Razo, S.A., & Ahmed, S.M. (2020). Mining-induced subsidence prediction by displacement discontinuity method. In D.M.D.O.K. Dissanayake & A.B.N. Dassanayake (Eds.), Proceedings of International Symposium on Earth Resources Management & Environment 2020 (pp. 19-26). Department of Earth Resources Engineering, University of Moratuwa. en_US
dc.identifier.uri http://dl.lib.uom.lk/handle/123/17095
dc.description.abstract It is essential to predict the mining-induced subsidence for sustainable mine management. The maximum observed subsidence having a noticeable areal extent due to Northern Upper Panels (NUP) and Southern Lower Panels (SLP) at the Barapukuria longwall coal mine is 5.8 m and 4.2 m, respectively, after the extraction of a 10 m thick coal seam. The mining-induced subsidence was simulated by the Displacement Discontinuity Method (DDM). The numerical model considered the effects of the ground surface, mining panels, faults, and the dyke. The predicted and the observed subsidence due to the mining of NUP and SLP were compared varying Young's modulus, and the 0.10 GPa Young's modulus was found to be the best match. The effects of the faults and the dyke in the calculation were found to be negligible. Future subsidence was predicted by considering 30 m extraction of the thick coal seam as 15.7 – 17.5 m in NUP and 8.7 – 10.5 m in SLP. For proper/sustainable mine management, the mining authority might need to count on this subsidence issue. en_US
dc.language.iso en en_US
dc.publisher Department of Earth Resources Engineering, University of Moratuwa en_US
dc.relation.uri https://uom.lk/sites/default/files/ere/files/ISERME%202020%20Abstracts%20Final%2019.12.2020%2018.13_0.pdf en_US
dc.subject DDM en_US
dc.subject Young’s modulus en_US
dc.subject Longwall coal mining en_US
dc.subject Faults en_US
dc.subject Dyke en_US
dc.title Mining-induced subsidence prediction by displacement discontinuity method en_US
dc.type Conference-Full-text en_US
dc.identifier.faculty Engineering en_US
dc.identifier.department Department of Earth Resources Engineering en_US
dc.identifier.year 2020 en_US
dc.identifier.conference International Symposium on Earth Resources Management & Environment 2020 en_US
dc.identifier.place Colombo en_US
dc.identifier.pgnos pp. 19-26 en_US
dc.identifier.proceeding Proceedings of International Symposium on Earth Resources Management & Environment 2020 en_US
dc.identifier.email rock.mist.badrul18@gmail.com en_US


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