NDLI: Theoretical analysis and Numerical Simulation Study on failure depth of coal seams floor caused by mining under pressure

Content Provider	IEEE Xplore Digital Library
Author	Shuancheng Gu Ang Li Jianhuan Wang
Copyright Year	2011
Description	Author affiliation: School of Architecture and Civil Engineering, Xi'an University of Science and Technology, 710054, China (Shuancheng Gu; Ang Li) \|\| School of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, China (Jianhuan Wang)
Abstract	With mining depth increased, most coal mine will face high pressure groundwater threat. Bearing mining has already became a coal mining method universally employed in deep mine of China, one of key problems in coal mining above confined aquifer is how to determine the depth of destroyed floor due to mining influence, but the conventional method of mining failure depth from coal seam floor in coal mining above confined aquifer possesses high cost and study cycle long and other shortcomings. In the paper, taking mining No.5 Coal Seam of Cheng-He Mining Area as an example, this paper analyzes a method which combines the numerical simulation with theoretical calculation is brought forward, while the testing data are compared with those from the in situ measurement, drawing detailed reliable actual information can ensure safety in mining, it can be dynamically reproduced that the development and failure process of the whole floor strata during mining advance. The numerical simulation results educes the 12∼13m failure depth of the coal seam floor of mining working face, meanwhile, the results may be used to guide practice with similar water prevention work of a working face of bearing mining and design of the water control method, and also provide scientific basis.
Starting Page	1367
Ending Page	1372
File Size	887041
Page Count	6
File Format	PDF
ISBN	9781612847719
e-ISBN	9781612847740
DOI	10.1109/ICMT.2011.6002595
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-07-26
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Failure depth of coal floor Coal seam floor Coal Rocks Numerical simulation Theoretical analysis Face Plastics Floors Stress
Content Type	Text
Resource Type	Article

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