Numerical Simulation Investigation of Seismic Dynamic Response of Pillars in Underground Goaf
Advances in Applied Sciences
Volume 5, Issue 2, June 2020, Pages: 35-40
Received: May 19, 2020; Accepted: May 29, 2020; Published: Jun. 8, 2020
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Shaolin Wang, Changsha Institute of Mining Research Co., Ltd, Changsha, China; State Key Laboratory of Safety Technology of Metal Mines, Changsha, China
Lei Wang, School of Resources Environment and Safety Engineering, Central South University, Changsha, China; Tongkeng Mine, China Tin Group Co., Ltd, Hechi, China
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In order to obtain the dynamic response law of pillars in underground goafs under the action of seismic wave, the acceleration response and dynamic displacement response law of pillars were studied by using the MIDAS-GTS/NX finite element simulation software based on a mine. Results are shown as follows: (1) the response of the top acceleration and displacement of the pillar and roof of goaf is larger than that of the bottom. (2) The cross-sectional area of pillars has a significant effect on the dynamic response of pillars in underground goafs. The stability of pillars with large cross-sectional area is generally better. (3) The position of pillars has a significant effect on the dynamic response of pillars. The dynamic response of pillars in the center of goaf is the strongest. However, the dynamic response of pillars in the edge of goaf is smallest. (4) The laws of acceleration and displacement response of pillars in goafs under horizontal seismic wave are revealed, which provides reference for mining design and earthquake damage prevention.
Mining Engineering, Earthquake Engineering, Underground Goaf, Dynamic Response, Numerical Simulation
To cite this article
Shaolin Wang, Lei Wang, Numerical Simulation Investigation of Seismic Dynamic Response of Pillars in Underground Goaf, Advances in Applied Sciences. Vol. 5, No. 2, 2020, pp. 35-40. doi: 10.11648/j.aas.20200502.13
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This article is an open access article distributed under the Creative Commons Attribution License ( which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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