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
引用
收藏
页码：169 / +
页数：2
相关论文
共 50 条
  • [41] Numerical modelling of multistage caving processes: insights from multi-seam longwall mining-induced subsidence
    Ghabraie, Behrooz
    Ghabraie, Kazem
    Ren, Gang
    Smith, John V.
    [J]. INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS, 2017, 41 (07) : 959 - 975
  • [42] Model test of the overburden deformation and failure law in close distance multi-seam mining
    杨伟峰
    隋旺华
    夏筱红
    [J]. International Journal of Coal Science & Technology, 2008, (02) : 181 - 185
  • [43] Overburden movement characteristics of top-coal caving mining in multi-seam areas
    Zhu, Zhijie
    Zhang, Hongwei
    Nemcik, Jan
    Lan, Tianwei
    Han, Jun
    Chen, Ying
    [J]. QUARTERLY JOURNAL OF ENGINEERING GEOLOGY AND HYDROGEOLOGY, 2018, 51 (02) : 276 - 286
  • [44] Evolution and effect of the stress concentration and rock failure in the deep multi-seam coal mining
    Mingwei Zhang
    Hideki Shimada
    Takashi Sasaoka
    Kikuo Matsui
    Linming Dou
    [J]. Environmental Earth Sciences, 2014, 72 : 629 - 643
  • [45] Three-zone characterisation of coupled strata and gas behaviour in multi-seam mining
    Qu, Qingdong
    Xu, Jialin
    Wu, Renlun
    Qin, Wei
    Hu, Guozhong
    [J]. INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES, 2015, 78 : 91 - 98
  • [46] Coupling control on pillar stress concentration and surface cracks in shallow multi-seam mining
    Qingxiang Huang
    Junwu Du
    Jie Chen
    Yanpeng He
    [J]. International Journal of Mining Science and Technology, 2021, 31 (01) : 95 - 101
  • [47] Evolution and effect of the stress concentration and rock failure in the deep multi-seam coal mining
    Zhang, Mingwei
    Shimada, Hideki
    Sasaoka, Takashi
    Matsui, Kikuo
    Dou, Linming
    [J]. ENVIRONMENTAL EARTH SCIENCES, 2014, 72 (03) : 629 - 643
  • [48] Numerical simulation on rational location of roadways at lower seam for ultra-close multiple seam mining
    [J]. Shang, T.-L. (shangtielin@163.com), 1600, China Coal Society (38):
  • [49] Contribution on lignite recovery from multi-seam deposits
    Kolovos, N
    Sotiropoulos, D
    Georgakopoulos, A
    [J]. ENERGY SOURCES, 2005, 27 (11): : 975 - 986
  • [50] Coupling control on pillar stress concentration and surface cracks in shallow multi-seam mining
    Huang, Qingxiang
    Du, Junwu
    Chen, Jie
    He, Yanpeng
    [J]. INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY, 2021, 31 (01) : 95 - 101
12345