IMHE OpenIR  > Journal of Mountain Science  > Journal of Mountain Science-2017  > Vol14 No.11
Thermal recovery process of a backfilled open-pit in permafrost area at the Gulian strip coal mine in Northeast China
GAO Shu-hui; HE Rui-xia; JIN Hui-jun; HUANG Ya-dong; ZHANG Jian-ming; LUO Dong-liang
Corresponding AuthorGAO Shu-hui
2017-11
Source PublicationJournal of Mountain Science
ISSN1672-6316
Volume14Issue:11Pages:2212-2229
Subtype期刊论文
AbstractTimely and proper backfilling of open-pits in strip coal-mines has been an effective measurement for the recovery of the hydrothermal regimes and ecological environment in permafrost regions. In this study, numerical simulations and statistical regressions were applied for analyzing the recovery processes of the backfill and its major influencing factors for the thermal equilibrium in recently backfilled open pits at the Gulian strip coal-mine in Mo'he, Northeast China. Results show that the thermal recovery time of backfilled areas is positively correlated to the backfill depth (BD) of the soils, the backfilled soil temperature (BST), and the mean annual ground surface temperature (MAGST); meanwhile, climate warming can impact on thermal regimes of the backfill area. The impact of climate warming on ground temperature of the backfill will show up significantly in about 50 years after backfilling (BD at 10.0 and 20.0 m, BST at 20.0°C) under the climate warming scenario (CWS) of 0.025°C·year−1. Grey-relation analyses show that the sensitivity of the backfill recovery time declines in the order of the BD, BST and MAGST. On the basis of the abovementioned studies, the layer-by-layer backfilling in cold seasons is advised for more effective and more rapid recovery of thermal regimes of the backfilled open-pits in cold regions.
KeywordCoal-mine Open-pit Backfill Numerical Simulation Thermal Recovery Process Sensitivity Analysis Gulian Strip Coal Mine
DOIhttps://doi.org/10.1007/s11629-017-4439-3
Indexed BySCI
Language英语
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/19190
CollectionJournal of Mountain Science_Journal of Mountain Science-2017_Vol14 No.11
Recommended Citation
GB/T 7714
GAO Shu-hui,HE Rui-xia,JIN Hui-jun,et al. Thermal recovery process of a backfilled open-pit in permafrost area at the Gulian strip coal mine in Northeast China[J]. Journal of Mountain Science,2017,14(11):2212-2229.
APA GAO Shu-hui,HE Rui-xia,JIN Hui-jun,HUANG Ya-dong,ZHANG Jian-ming,&LUO Dong-liang.(2017).Thermal recovery process of a backfilled open-pit in permafrost area at the Gulian strip coal mine in Northeast China.Journal of Mountain Science,14(11),2212-2229.
MLA GAO Shu-hui,et al."Thermal recovery process of a backfilled open-pit in permafrost area at the Gulian strip coal mine in Northeast China".Journal of Mountain Science 14.11(2017):2212-2229.
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