Study on Rib Sloughage Prevention Based on Geological Structure Exploration and Deep Borehole Grouting in Front Abutment Zones
Joint Authors
Zhang, Yaohui
Wang, Yuli
Wang, Cheng
Xiong, Zuqiang
Wang, Chun
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-09-22
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
This research presents the grouting method of preventing rib sloughage which severely impacts mine safety and longwall retreat speed in thick coal seam with numerical simulation and laboratory tests.
Based on the analysis of the plastic failure mode of five types of coal seam, roof strata ahead of the longwall face, and fractures developed in the coal seam, the following results are drawn, the range and degree of plastic failure generated in the coal seam and roof strata ahead of the longwall face gradually decreased as the coal mass strength increased; the grouting boreholes are essentially laid out within the coal rib instead of the roof.
For a particular case of a coal mine in Shanxi province, a novel cement-based material was grouted, which fulfilled the reinforcement requirements under the tectonic stress regions and front abutment zones.
Besides, the grouting borehole construction requested predrilled boreholes, full borehole intubation, lengthened hole sealing, and multiple-step drilling and grouting.
This study can provide a theoretical framework of a design overview and practical basis for similar mining conditions in other coalfields.
American Psychological Association (APA)
Wang, Cheng& Xiong, Zuqiang& Wang, Chun& Wang, Yuli& Zhang, Yaohui. 2020. Study on Rib Sloughage Prevention Based on Geological Structure Exploration and Deep Borehole Grouting in Front Abutment Zones. Geofluids،Vol. 2020, no. 2020, pp.1-12.
https://search.emarefa.net/detail/BIM-1165226
Modern Language Association (MLA)
Wang, Cheng…[et al.]. Study on Rib Sloughage Prevention Based on Geological Structure Exploration and Deep Borehole Grouting in Front Abutment Zones. Geofluids No. 2020 (2020), pp.1-12.
https://search.emarefa.net/detail/BIM-1165226
American Medical Association (AMA)
Wang, Cheng& Xiong, Zuqiang& Wang, Chun& Wang, Yuli& Zhang, Yaohui. Study on Rib Sloughage Prevention Based on Geological Structure Exploration and Deep Borehole Grouting in Front Abutment Zones. Geofluids. 2020. Vol. 2020, no. 2020, pp.1-12.
https://search.emarefa.net/detail/BIM-1165226
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1165226