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| CORRELATION BETWEEN GROUND SUBSIDENCE AND INCLINATION OF ORE BODY |
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Received:November 02, 2013
Revised:November 06, 2013
Accepted:November 08, 2013
Published Online:May 28, 2014
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| DOI： |
| KeyWord:Underground mining; maximum subsidence; numerical simulation; least square |
| Author | Institution |
| LIANG Jiang-bo |
Faculty of Land Resource Engineering,Kunming University of Science and Technology |
| LI Ke-gang |
Faculty of Land Resource Engineering,Kunming University of Science and Technology |
| HUANG Wei-hui |
Faculty of Land Resource Engineering,Kunming University of Science and Technology |
| Wu Chuang-ju |
Faculty of Land Resource Engineering,Kunming University of Science and Technology |
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| Abstract: |
| In order to analyze and compare subsidence law of upper and lower side of ore body, evaluate the stability of rock mass of lower side,Using finite element analysis software ANSYS to establish higher simulation degree model, and assigning the model relative parameter values. In the model, the dip angle of ore body change from 0 degree to 80 degree with an interval of 5 degree, calculating multiple working conditions of different dip angle. According to calculated results of every model, least square fourth power fit the dip angle of ore body and maximum subsidence of ground by MATLAB, getting fourth power polynomial and curve diagram of maximum subsidence varies following the dip angle. The research results show that the maximum subsidence of group reduce along with the increasing of dip angle of ore body on the upper side and increase on the lower side. |
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