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首页> 外文期刊>The international journal on hydropower & dams >Retrofitting Sylvenstein dam with a cut-off wall and control gallery
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Retrofitting Sylvenstein dam with a cut-off wall and control gallery

机译:用防渗墙和控制廊改造西尔文施泰因大坝

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摘要

To keep the seepage water to a minimum, starting in May 2014,41 m-deep drainage piles were built behind the cut-off wall about 1.2 m from the seepage tunnel [Langhagen, Weiss and Lang, 2014~7]. The 54 large piles, which were drilled with diameters of 900 mm, and with a distance between their central axes of 2.8 m, see Photo (f), were created as piped piles with a drilling rig. The slotted pipes in these piles provide for the collection of the drainage water, which then flows into the base of the seepage tunnel.
机译:为了使渗漏水降至最低,从2014年5月开始,在距渗漏隧道约1.2 m的防渗墙后面建了41 m深的排水桩[Langhagen,Weiss和Lang,2014〜7]。用钻机将54根直径900毫米,中心轴线之间距离为2.8 m的大桩打成管桩。这些桩中的带缝隙的管道用于收集排水,然后将其流入渗漏隧道的底部。

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