NDLI: Simulation analysis of the impact of excavation backfill on permafrost recovery in an opencast coal-mining pit

Content Provider	Springer Nature Link
Author	Cao, Wei Sheng, Yu Wu, Jichun Li, Jing Li, Jinping Chou, Yaling
Copyright Year	2016
Abstract	The article attempts to investigate the status of permafrost recovery after excavation backfill in an opencast coal mine. To do that, we forecast the permafrost recovery under certain initial temperatures and different boundary conditions by using the numerical simulation method. The results show that the filling temperature significantly influences permafrost recovery after backfilling. When the filling temperature decreases from +2.0 to −2.0 °C, the permafrost recovery rate will greatly accelerate, and the permafrost thickness will significantly increase. When the surface temperature of the filling is positive, the permafrost recovery at the bottom of the excavation will be more difficult than when the temperature is negative. The permafrost recovery rate will be slow, and the permafrost thickness will be thin. The permafrost recovery also gradually speeds up the thickening with decreasing natural surface temperature. Thus, backfilling should be conducted in the cold season, and cooling treatment should be applied to the filling before backfilling. The treatment will ensure that the permafrost recovery is faster and more stable. This measure is also conducive to the recovery of the ecological environment of the mine.
Starting Page	1
Ending Page	10
Page Count	10
File Format	PDF
ISSN	18666280
Journal	Environmental Earth Sciences
Volume Number	75
Issue Number	9
e-ISSN	18666299
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2016-05-05
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Simulation analysis Excavation backfill Impact analysis Permafrost recovery Opencast coal-mining pit Geology Hydrology/Water Resources Geochemistry Environmental Science and Engineering Terrestrial Pollution Biogeosciences
Content Type	Text
Resource Type	Article
Subject	Global and Planetary Change Earth-Surface Processes Soil Science Environmental Chemistry Pollution Geology Water Science and Technology

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Simulation analysis of the impacts of underground mining on permafrost in an opencast coal mine in the northern Qinghai–Tibet Plateau

Surface subsidence control theory and application to backfill coal mining technology

Theoretical research on mass ratio in solid backfill coal mining

Surface dynamic subsidence prediction model of solid backfill mining

Mining scheme design for super-high water backfill strip mining under buildings: a Chinese case study

Changes of backfill soil of tower foundation in the permafrost regions with warm ice-rich frozen soil on the Qinghai–Tibet Plateau

Dynamic characteristics of gangues during vertical feeding in solid backfill mining: a case study of the Wugou coal mine in China

Simulation of water resource loss in short-distance coal seams disturbed by repeated mining

Environmental impact of oil shale mining

Simulation analysis of the impact of excavation backfill on permafrost recovery in an opencast coal-mining pit

Similar Documents

Simulation analysis of the impacts of underground mining on permafrost in an opencast coal mine in the northern Qinghai–Tibet Plateau

Surface subsidence control theory and application to backfill coal mining technology

Theoretical research on mass ratio in solid backfill coal mining

Surface dynamic subsidence prediction model of solid backfill mining

Mining scheme design for super-high water backfill strip mining under buildings: a Chinese case study

Changes of backfill soil of tower foundation in the permafrost regions with warm ice-rich frozen soil on the Qinghai–Tibet Plateau

Dynamic characteristics of gangues during vertical feeding in solid backfill mining: a case study of the Wugou coal mine in China

Simulation of water resource loss in short-distance coal seams disturbed by repeated mining

Environmental impact of oil shale mining

Simulation analysis of the impact of excavation backfill on permafrost recovery in an opencast coal-mining pit