Study on the Grouting Reinforcement and Stability of a Tailings Initial Dam

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Abstract:

The safety operation of tailings initial dam is the necessary conditions to ensure that the tailings dam is steady. In view of the poor construction quality and the appearing of jet shape seepage with the tailings leak in a tailings initial dam, the thesis analyzed the dam composite of tailings initial dam, the study of dam stability was carried out in the different working conditions and the disaster prevention measures was discussed. The research results indicated that the cementation was better and the strength of rock-soil body was higher in the upper dam body of tailings initial dam. However, the gravel cementation was weaker and strength of rock mass was relatively lower in the bottom dam body of that. Based on the poor quality of construction and penetrating seepage with the tailings initial dam, it should be feasible to adopt the grouting reinforcement way so as to reinforce the tailings initial dam. But the grouting pressure should be not more than 0.2 MPa. It will rely on increasing the dam self-respect and decreasing reservoir water level in the grouting process to reduce the risk of landslide. The research results can provide the theory basis on the disaster prevention and control of the tailings initial dam.

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Advanced Materials Research (Volumes 602-604)

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1570-1573

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December 2012

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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