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一种三维立体排渗方式在细粒级尾砂筑坝中的应用

余新洲

余新洲. 一种三维立体排渗方式在细粒级尾砂筑坝中的应用[J]. 岩土工程学报, 2016, 38(zk1): 74-78. DOI: 10.11779/CJGE2016S1013
引用本文: 余新洲. 一种三维立体排渗方式在细粒级尾砂筑坝中的应用[J]. 岩土工程学报, 2016, 38(zk1): 74-78. DOI: 10.11779/CJGE2016S1013
YU Xin-zhou. Application of 3D solid water seepage method in construction of fine fraction tailings dam[J]. Chinese Journal of Geotechnical Engineering, 2016, 38(zk1): 74-78. DOI: 10.11779/CJGE2016S1013
Citation: YU Xin-zhou. Application of 3D solid water seepage method in construction of fine fraction tailings dam[J]. Chinese Journal of Geotechnical Engineering, 2016, 38(zk1): 74-78. DOI: 10.11779/CJGE2016S1013

一种三维立体排渗方式在细粒级尾砂筑坝中的应用  English Version

详细信息
    作者简介:

    余新洲(1987- )男,硕士,工程师,主要从事尾矿库工程水工设计和研究。E-mail: fisher511@163.com.。

Application of 3D solid water seepage method in construction of fine fraction tailings dam

  • 摘要: 为了实现细粒级尾砂用于尾矿库上游法筑坝,需解决细颗粒尾砂抗剪强度低、固结排水难的问题,提出组合运用土工合成材料作为尾矿库堆积坝三维立体式排渗系统。通过建立某尾矿库二维有限元渗流计算模型,对比不同方案下尾矿库渗流场情况,得出该排渗方式的合理有效性。结果表明,采用水平土工席垫+垂直塑料盲沟排渗技术可以有效降低坝体浸润线,最大降幅达230.43%;排渗系统对降低渗透比降有明显作用,可减小堆积坝体发生渗透破坏可能性。
    Abstract: To achieve construction of fine tailings dam by upstream method, the problems of low shear strength and consolidation draining difficulty need to be solved. United application of earthwork synthetic materials as 3D solid water seepage system of tailings dam is put forward. By establishing 2D finite element model for seepage calculation of a tailing reservoir, the seepage fields are compared in different schemes, and reasonableness and effectiveness of the water seepage method are obtained. The results show that the application of horizontal geomat and vertical plastic blind drain water seepage technology can effectively reduce the saturation line of tailings dam, and the maximum amplitude reduction reaches 230.43%. The water seepage system can significantly decrease the gradient of permeation, reducing the possibility of seepage failure.
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出版历程
  • 收稿日期:  2015-11-29
  • 发布日期:  2016-03-24

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