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首页> 外文期刊>ANCOLD Bulletin >REMEDIAL WORKS ON AUSTRALIA'S OLDEST EMBANKMENT DAM
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REMEDIAL WORKS ON AUSTRALIA'S OLDEST EMBANKMENT DAM

机译：对澳大利亚最古老的堤坝的修复工作

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摘要

Yan Yean Dam has been a key component of water supply to the City of Melbourne since its completion in 1857. Of typical puddle core construction over deep alluvium, it has performed well over the years since, with the exception of the discovery of a piping tunnel in 1949, duly repaired with minimal risk. However, in the absence of an engineered filter, some potential for recurrence has remained, and this, coupled with a continuing outward creep of the downstream batter and the need to ensure compliance with current design practice, has driven the recent remedial program. The original embankment was 9.6m high and almost a kilometer long, with 3:1 and 2:1 batters and a wide core, now modified by the placement of a 3-component full-height chimney filter and stabilising fill. Critical issues in the design of these remedial works are described herein, including foundation preparation, the evolution of the design slope, the cellular filter and its specification, and measures required for the preservation of historic structures. Because of the potential impact on public parkland and nearby housing, community consultation was a vital input that enabled good relationships to be maintained throughout the project.
机译：自1857年完工以来，延安水坝一直是墨尔本市供水的重要组成部分。在深冲积层上典型的水坑核心结构中，除了发现管道隧道以外，多年来表现良好。 1949年进行了妥善维修，风险最小。然而，在没有工程过滤器的情况下，仍然存在一定的复发可能性，再加上下游面糊不断向外蠕动以及需要确保符合当前设计实践的需求，推动了最近的补救计划。最初的路堤高9.6m，长约一公里，具有3：1和2：1的击球手和宽阔的核心，现在通过放置3分量全高烟囱过滤器和稳定填料进行修改。本文介绍了这些补救性工程设计中的关键问题，包括基础准备，设计斜率的演变，蜂窝式过滤器及其规格以及保存历史建筑所需的措施。由于对公共公园和附近房屋的潜在影响，社区咨询是至关重要的投入，可以在整个项目中维持良好的关系。

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