Numerical Study on Reasonable Entry Layout of Lower Seam in Multi-seam Mining

被引：0
|
作者：
Wang Xiangqian [1 ]
Meng Xiangrui [1 ]
Zhao Qifeng [2 ]
机构：
[1] Anhui Univ Sci & Technol, Huainan 232001, Peoples R China
[2] North China Inst Sci & Technol, Beijing 101601, Peoples R China
来源：
INTERNATIONAL MINING FORUM 2010: MINE SAFETY AND EFFICIENT EXPLOITATION FACING CHALLENGE OF THE 21ST CENTURY | 2010年
关键词：
multi-seam; entry; entry layout; numerical simulation;
D O I：
暂无
中图分类号：
TD [矿业工程];
学科分类号：
0819 ;
摘要：
According to the geological conditions of 6# coal seam and 8# coal seam in Xieqiao Coal Mine, reasonable entry layout of lower seam in multi-seam mining has been studied by FLAC3D numerical simulation. Three ways of entry layout including alternate internal entry layout, alternate exterior entry layout and overlapping entry layout has been put forward for discussing on reasonable entry layout. Then stress distribution and displacement characteristics of surrounding rock have been analyzed in the three ways of entry layout by numerical simulation, leading to the conclusion that alternate internal entry layout pattern, which make the entry located in stress reduce zone and avoid the influence of abutment pressure of upper coal seam mining to a certain extent, is a better choice for multi-seam mining. The research results herein can offer beneficial reference for entry layout with similar geological conditions in multi-seam mining
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页码：169 / +
页数：2
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