Comparison of pseudo-static, Newmark and dynamic response analyses of final pit wall of the Sungun Copper Mine

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HAZEGH AYYOOB; NOFERESTI HOSSAIN

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Journal Paper

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Journal: International Journal of Mining and Geo-Engineering Year:2018 | Volume:52 | Issue:2 Page(s): 141-147

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Title

Comparison of pseudo-static, Newmark and dynamic response analyses of final pit wall of the Sungun Copper Mine

Author(s)

HAZEGH AYYOOB | NOFERESTI HOSSAIN | Issue Writer Certificate

Keywords

Dynamic analysis

Newmark displacement analysis

Seismic stability

Sungun Copper Mine

Abstract

The Sungun Copper Mine is located in a highly hazardous seismic area. Most recently, the Ahar-Varzeqan earthquake, M 6. 2, occurred on August 11, 2012; at a distance about 40 kilometers away from the mine. Nevertheless, the Seismic stability of the final pit wall was not comprehensively reviewed. In this research, the southwestern wall of Sungun’ s final pit was investigated through pseudo-static, Newmark and numerical methods. Moreover, some of the difficulties in accomplishing and interpreting the results in dynamic analyses of a mining slope is explained. Pseudo-static analyses revealed that the final pit wall is not safe against the design earthquake, and it is highly prone to failure. The results of Newmark analysis proved that a large failing region would form in the case of design earthquake. Based on a dynamic numerical analysis on the pit wall, continuous forward and downward earthquake-induced movements were observed, as well, which might be a sign of pit wall instability. The effect of underground water drainage on stability of the pit wall was investigated in the numerical model. Resulted time histories of displacements in the drained pit wall proved that only water drainage is sufficient for protecting the pit wall against the design earthquake.

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APA: Copy

HAZEGH, AYYOOB, & NOFERESTI, HOSSAIN. (2018). Comparison of pseudo-static, Newmark and dynamic response analyses of final pit wall of the Sungun Copper Mine. INTERNATIONAL JOURNAL OF MINING AND GEO-ENGINEERING, 52(2), 141-147. SID. https://sid.ir/paper/330012/en

Vancouver: Copy

HAZEGH AYYOOB, NOFERESTI HOSSAIN. Comparison of pseudo-static, Newmark and dynamic response analyses of final pit wall of the Sungun Copper Mine. INTERNATIONAL JOURNAL OF MINING AND GEO-ENGINEERING[Internet]. 2018;52(2):141-147. Available from: https://sid.ir/paper/330012/en

IEEE: Copy

AYYOOB HAZEGH, and HOSSAIN NOFERESTI, “Comparison of pseudo-static, Newmark and dynamic response analyses of final pit wall of the Sungun Copper Mine,” INTERNATIONAL JOURNAL OF MINING AND GEO-ENGINEERING, vol. 52, no. 2, pp. 141–147, 2018, [Online]. Available: https://sid.ir/paper/330012/en

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