某上游法尾矿坝抗滑稳定性浅析
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摘要
通过某上游法尾矿坝抗滑稳定性分析,对比分析了坝体加高、浸润线条件、排渗系统运行状况和透镜体简化对尾矿坝抗滑稳定性的影响。结果表明该尾矿坝抗滑稳定性随坝体加高而降低;排渗系统运行状况对尾矿坝抗滑稳定性的影响超过坝体加高对尾矿坝抗滑稳定性的影响;根据一定简化原则减少透镜体,从而简化剖面形状和计算复杂程度,是一种能反映工程实际但比较保守的分析方法。拟静力法并非适合于所有的尾矿堆积坝抗震稳定性分析,即便采用其所得结果也可能会出现较大偏差。
The results of anti-sliding stability analyses on an upstream gangue-dam have been used in this present paper to make simultaneous analyses on the effects of heitening the dam saturation line condition, operation state of drainage system and reduced lens on the anti-sliding stability of the gangue dam. The results have shown that the anti-sliding stability becomes poor as the dam height increases and the effect that the operation state of the draining system makes on the dams stability is higher than that of heightening the dam. The transaction shape and the complexity degree in calculation can be simplifield if the lens are reduced in the light of a certain simplification principle, which is an analyzing method to reflect the engineering practice although it is some what conservative. Not all kinds of gangue dams can use the pseudo-static method to analyse their seismic stability or great departure may result.
The results of anti-sliding stability analyses on an upstream gangue-dam have been used in this present paper to make simultaneous analyses on the effects of heitening the dam saturation line condition, operation state of drainage system and reduced lens on the anti-sliding stability of the gangue dam. The results have shown that the anti-sliding stability becomes poor as the dam height increases and the effect that the operation state of the draining system makes on the dams stability is higher than that of heightening the dam. The transaction shape and the complexity degree in calculation can be simplifield if the lens are reduced in the light of a certain simplification principle, which is an analyzing method to reflect the engineering practice although it is some what conservative. Not all kinds of gangue dams can use the pseudo-static method to analyse their seismic stability or great departure may result.
引文
[1]陈守义,张华.银山铅锌矿尾矿库三期扩容尾矿坝稳定性补充分析报告[R].武汉:中国科学院岩土力学研究所,2002.
[2]陈守义,胡明鉴.银山铅锌矿三期扩容尾矿坝稳定性评价的进一步分析和讨论[R].武汉:中国科学院岩土力学研究所,2002.
[3]林在贯,高大钊,顾宝和等.岩土工程手册[M].1994.
[4]陈友根,祝玉学,黄芳.尾矿坝体抗滑和抗渗稳定性分析[J].矿山研究,30-34.
[5]孙希乐.治理尾矿坝渗流降低坝体浸润线实践[J].有色矿山,1994,3:57-60.
[6]李万升,高建生,王治平.中国尾矿坝地震安全度(8),大石河尾矿砂的力学特性试验研究[J].工业建筑,1995年,25(1):43-47.
[7]王武林,杨春和,阎金安.某铅锌矿尾矿坝工程勘察与稳定性分析[J].岩石力学与工程学报,1992,11(4),332-344.
[8]《中国有色金属尾矿库概论》编辑委员会,中国有色金属尾矿库概论[M].北京:中国有色金属工业总公司,1992,293-394.
[2]陈守义,胡明鉴.银山铅锌矿三期扩容尾矿坝稳定性评价的进一步分析和讨论[R].武汉:中国科学院岩土力学研究所,2002.
[3]林在贯,高大钊,顾宝和等.岩土工程手册[M].1994.
[4]陈友根,祝玉学,黄芳.尾矿坝体抗滑和抗渗稳定性分析[J].矿山研究,30-34.
[5]孙希乐.治理尾矿坝渗流降低坝体浸润线实践[J].有色矿山,1994,3:57-60.
[6]李万升,高建生,王治平.中国尾矿坝地震安全度(8),大石河尾矿砂的力学特性试验研究[J].工业建筑,1995年,25(1):43-47.
[7]王武林,杨春和,阎金安.某铅锌矿尾矿坝工程勘察与稳定性分析[J].岩石力学与工程学报,1992,11(4),332-344.
[8]《中国有色金属尾矿库概论》编辑委员会,中国有色金属尾矿库概论[M].北京:中国有色金属工业总公司,1992,293-394.
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