NDLI: Coal wall collapsing zone analysis and controlling technology of the high cutting coal mining face

Content Provider	IEEE Xplore Digital Library
Author	Zhang Hui Xu You-lin Gui Xiang-you Zheng Wei
Copyright Year	2011
Description	Author affiliation: Industry and Energy Committee of Bijie, Bijie 551700 (Zheng Wei) \|\| Coal Mining and Designing Branch; China Coal Research Institut; Beijing 100083, China (Xu You-lin) \|\| Mining Engineering Faculty of Bijie Institute, Bijie, 551700,4 (Gui Xiang-you) \|\| Coal Mining and Designing Branch; China Coal Research Institut; Faculty of Resources & Safety Engineering, CUMTB, Beijing 100083, China (Zhang Hui)
Abstract	Based on the long-term field observation, it is to analyze the coal wall collapsing and saplling mechanics of the high cutting coal mining face, and put forth that existence of the weaken spot or face on the coal wall is the basic reason which cause the coal wall collapsing and saplling of the high cutting coal mining face. According to the coal wall collapsing and saplling characteristic, establishing the mechanical model of coal wall collapsing and slipping utilizing Bishop slice method, and deducing the calculated formula of coal wall stabilization assurance coefficient. Combining with actual engineering geology condition of the high cutting coal mining face in a coal mine, get out critical collapsing sliding surface of different sites on the coal wall weaken spot or face of the high cutting coal mining face, and then forecast collapsing zone of the coal wall. Furthermore, the paper proposes a series of policies and measures for preventing the coal wall collapsing and saplling, and effectively resolves that the coal wall collapsing and saplling of high cutting coal mining face brings safety incipient fault on production.
Starting Page	4211
Ending Page	4214
File Size	383913
Page Count	4
File Format	PDF
ISBN	9781457703201
e-ISBN	9781457703218
DOI	10.1109/ICECC.2011.6068044
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-09-09
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Bishop's algorithm Critical collapsing Coal Coal wall spalling Weaken spot or face Rocks Nickel Coal mining Safety Face High cutting coal mining
Content Type	Text
Resource Type	Article

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