基于GEO-SLOPE的尾礦庫穩定性分析
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北方工業(yè)大學(xué)

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TD926.4?

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國家自然科學(xué)基金(項目編號: 41772335);北方工業(yè)大學(xué)有組織科研(項目編號: 2023YZKY01)克伊。


Stability analysis of tailing ponds based on GEO-SLOPE
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North China University of Technology

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    摘要:

    尾礦庫作為礦業(yè)生產(chǎn)過(guò)程中產(chǎn)生的重要工程設施,承載著(zhù)大量的尾礦和廢渣,其穩定性問(wèn)題是保障工程安全、預防環(huán)境污染的關(guān)鍵環(huán)節,驗證尾礦庫各項設計措施的有效性六诲,以提高尾礦庫的設計和管理水平。基于GEO-SLOPE數值模擬,對尾礦庫在不同工況下的滲流和穩定性進(jìn)行了綜合評估。結果表明:在五百年一遇的防洪標準下筷拯,通過(guò)計算,東、西側截洪溝的泄流能力和尾礦庫庫區溢洪道均滿(mǎn)足要求;通過(guò)滲流計算分析坑雅,驗證了尾礦壩設計滲控措施的有效性,特別是HDPE土工膜和設計排滲系統在防滲方面的良好效果;在三種工況計算下疚艺,尾礦壩下游邊坡抗滑穩定滿(mǎn)足設計標準;提出了布置人工監測和在線(xiàn)監測設施的建議,以實(shí)現對尾礦庫壩體及排洪情況的實(shí)時(shí)監控,從而及時(shí)預防意外事件的發(fā)生。研究結果可以為尾礦庫后續的設計、施工以及管理等提供技術(shù)參考淑睛,以推動(dòng)尾礦庫穩定性分析技術(shù)的不斷發(fā)展和應用。

    Abstract:

    In mining operations, tailings ponds are essential engineering structures that contain substantial quantities of tailings and waste. Therefore, ensuring their stability is crucial for operational safety and environmental protection. This study aims to validate the effectiveness of various design measures for tailings ponds to enhance their design and management. Using GEO-SLOPE numerical simulation, we conducted a comprehensive assessment of the seepage and stability of tailings ponds under different scenarios.The results demonstrate that, under a 500-year flood event, the drainage capacities of the east and west interception ditches and the overflow channels of the tailings pond comply with the required standards. Moreover, seepage analysis confirms the effectiveness of the seepage control measures implemented in the tailings dam design, particularly the use of HDPE geomembranes and the design drainage system, in providing superior seepage prevention. Furthermore, stability calculations under three different conditions indicate that the downstream slope stability of the tailings dam meets the design standards.Additionally, this study suggests the installation of manual and online monitoring facilities to enable real-time monitoring of the tailings dam body and drainage conditions, thereby mitigating the risk of unforeseen incidents. In conclusion, these findings offer valuable technical references for the future design, construction, and management of tailings ponds, thereby advancing the technology and application of tailings pond stability analysis.

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  • 收稿日期:2024-04-27
  • 最后修改日期:2024-05-24
  • 錄用日期:2024-06-11
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