AE Characteristics of overburden rock over Metal Mine Goaf under Mining Layout

被引：0
|
作者：
Zhao, Kang [1 ]
Jia, Qunyan [1 ]
机构：
[1] Jiangxi Univ Sci & Technol, Sch Architectural & Surveying Engn, Ganzhou 341000, Peoples R China
来源：
EXPLORATION AND PROCESSING OF MINERAL RESOURCES | 2014年 / 868卷
关键词：
Metal mine; Mining layout; Microcrack; AE (acoustic emission) characteristic; SUBSIDENCE;
D O I：
10.4028/www.scientific.net/AMR.868.296
中图分类号：
TE [石油、天然气工业];
学科分类号：
0820 ;
摘要：
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.
引用
收藏
页码：296 / 299
页数：4
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