Effect of Shaft Pillar Extraction on Stability of Main Shaft: A Case Study at Xincheng Gold Mine, China
Joint Authors
Liu, Xige
Guan, Kai
Zhang, Hongxun
Zhu, Wan-Cheng
Source
Mathematical Problems in Engineering
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-16, 16 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-04-05
Country of Publication
Egypt
No. of Pages
16
Main Subjects
Abstract EN
Mining of ore body in the vicinity of a shaft has a significant influence on its stability.
The in situ monitoring and numerical simulation are employed to analyze the effect of shaft pillar extraction at Xincheng Gold Mine.
The XI# ore body is recently found around and beneath the shaft, and mining in this area may be detrimental to the shaft.
Firstly, on the base of geological survey and in situ displacement monitoring, mechanical parameters of rock mass are obtained and the displacement around the shaft is measured.
Secondly, the sensitivities of five main factors that may affect the shaft displacement are analyzed by means of orthogonal experiment according to the numerical simulation with FLAC3D.
Finally, a numerical model is established according to the in situ condition; in order to forecast the shaft displacement induced by mining activities of XI# orebody, the Mining Priority Index (MPI) is put forward and used to select the optimal mining sequence.
Based on the comparison between the numerical results with the monitoring data, it is determined that the ore within 100 m from the shaft is not suggested to be extracted until the last period of the shaft life.
American Psychological Association (APA)
Liu, Xige& Zhu, Wan-Cheng& Guan, Kai& Zhang, Hongxun. 2018. Effect of Shaft Pillar Extraction on Stability of Main Shaft: A Case Study at Xincheng Gold Mine, China. Mathematical Problems in Engineering،Vol. 2018, no. 2018, pp.1-16.
https://search.emarefa.net/detail/BIM-1205739
Modern Language Association (MLA)
Liu, Xige…[et al.]. Effect of Shaft Pillar Extraction on Stability of Main Shaft: A Case Study at Xincheng Gold Mine, China. Mathematical Problems in Engineering No. 2018 (2018), pp.1-16.
https://search.emarefa.net/detail/BIM-1205739
American Medical Association (AMA)
Liu, Xige& Zhu, Wan-Cheng& Guan, Kai& Zhang, Hongxun. Effect of Shaft Pillar Extraction on Stability of Main Shaft: A Case Study at Xincheng Gold Mine, China. Mathematical Problems in Engineering. 2018. Vol. 2018, no. 2018, pp.1-16.
https://search.emarefa.net/detail/BIM-1205739
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1205739