AE Characteristics of Overburden Rock over Metal Mine Goaf under Mining Layout

Abstract:

Based on extremely complex geological characteristics of metal mines, a mining model was built up, and from the micro - meso - macro point of view, relationship between rock AE and failure characteristics of overlying rock mass was studied and AE is divided into four stages. From the view of AE energy and distribution, the generation location, shape and size of caving of overburden rock was predicted. Through studies on the difference of goaf size, the author obtained the displacement variation and failure characteristics of metal mine overburden rock under tectonic stress, self-weight stress and dynamic mining conditions.

• Periodical: Advanced Materials Research (Volume 868)
• Pages: 296-299
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.868.296
• Online since: December 2013
• Authors: Kang Zhao*, Qun Yan Jia
• Keywords: Acoustic Emission (AE) Characteristic, Metal Mine, Microcrack, Mining Layout

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