Horizontal Pillar Stability Evaluation and Instability Risk Prediction of Jinchuan No.2 Mine Area

Zeng Hui Liu; Qian Gao

doi:10.4028/www.scientific.net/AMR.594-597.2281

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 594-597Horizontal Pillar Stability Evaluation and...

Horizontal Pillar Stability Evaluation and Instability Risk Prediction of Jinchuan No.2 Mine Area

Abstract:

In order to study the horizontal pillar stability of Jinchuan No.2 mine area, the 13 factors and three levels of the numerical calculation orthogonal pilot program was devised. We had required the evaluation function of the 3 index which was averaging stress of horizontal pillar, Shear stress of horizontal pillar, Failure ratio of horizontal pillar, and used reliability theory to analyze reliability and risk prediction of the horizontal pillar stability. The results showed that averaging stress of horizontal pillar instability risk is 5.57％, shear stress of horizontal pillar instability risk 4.37％, failure ratio of horizontal pillar instability risk 8.222％, The stability reliability of horizontal pillar is 82.88%, and the instability risk probability 17.12%.

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Periodical:

Advanced Materials Research (Volumes 594-597)

Pages:

2281-2284

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.594-597.2281

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Online since:

November 2012

Authors:

Zeng Hui Liu*, Qian Gao

Keywords:

Evaluation Index, Horizontal Pillar Stability, Reliability Analysis, Risk Prediction

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