Potential Risk Analysis of Tailings Dam under Preloading Condition and Its Countermeasures

Shuren Wang; Haiqing Zhang; Zhengsheng Zou; Ping Wang; Tao Yu

doi:10.5614/j.eng.technol.sci.2015.47.1.4

Authors

Shuren Wang Opening Project of Key Laboratory of Deep Mine Construction, Henan Polytechnic University,
Haiqing Zhang Beijing Civil King Information Technology Corporation, Ltd.
Zhengsheng Zou Opening Project of Key Laboratory of Deep Mine Construction, Henan Polytechnic University,
Ping Wang Shen Kan Qinghuangdao Engineering & Technology Corporation, MCC
Tao Yu Shen Kan Qinghuangdao Engineering & Technology Corporation, MCC

DOI:

https://doi.org/10.5614/j.eng.technol.sci.2015.47.1.4

Abstract

It is very important for mine production safety to ensure the stability of the tailings dam. Taking a flatland tailings pond as the background, a threedimensional computational model was built based on a tailings dam under mullock heap preloading condition. Considering the current operating water level conditions, a liquid-solid coupling analysis of the model was conducted.The deformation characteristics of the tailings dam were revealed during successive preloading at the front of the dam. The safety factor and the potential slide face of the tailings dam were calculated under different conditions using the strength reduction method. The results show that the tailings dam in its current condition is basically stable, but if the mullock heap continues to be heightened, the tailings dam will become unstable. Therefore, in order to limit the height of the mullock heap, establishing a monitor and early warning mechanism are put forward to ensure mine production safety.

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