Thermal recovery process of a backfilled open-pit in permafrost area at the Gulian strip coal mine in Northeast China

doi:https://doi.org/10.1007/s11629-017-4439-3

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > 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
刊名	Journal of Mountain Science
	2017-11
卷号	14 期号:11 页码:2212-2229
关键词	Coal-mine Open-pit Backfill Numerical Simulation Thermal Recovery Process Sensitivity Analysis Gulian Strip Coal Mine
ISSN号	1672-6316
DOI	https://doi.org/10.1007/s11629-017-4439-3
通讯作者	GAO Shu-hui
文献子类	期刊论文
英文摘要	Timely 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.
语种	英语
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/19190]
专题	Journal of Mountain Science _Journal of Mountain Science-2017_Vol14 No.11
推荐引用方式 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.