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Aspects of the Design of Remedial Works for Yan Yean Dam, Victoria

机译:维多利亚州延安大坝补救工程设计的各个方面

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The Yan Yean storage, retained by a puddle clay core embankment of 10m height, is thernoldest embankment dam in Australia and formed the initial component of the Melbourne water supply. Because of its age. and some concerns about continuing displacements of the downstream face and potential piping risk, as well as seismic issues, a stabilizing fill with filters was placed on the downstream batter during 1999-2000. Whilst the original batter was constructed at 2:1, initial assessments during the design of the remedial fill indicated that a slope as benign as 5:1 could be required. The final choice of 3:1, with berm, involved lengthy considerations of clay mineralogy, the deep alluvial deposits in the foundation and their structure, and a comprehensive laboratory testing program. The links between geology, mineralogy, residual shear strength, clay structure and adopted design parameters, and the resolution of conflicting information are presented in this paper.
机译:Yan Yean储水库由10m高的水坑黏土核心路堤保留,是澳大利亚最古老的路堤,是墨尔本供水的初始组成部分。因为它的年代。由于人们对下游工作面的持续位移和潜在的管道风险以及地震问题的担忧,在1999-2000年期间,在下游面糊上放置了稳定的过滤器填料。虽然原始面糊的比例为2:1,但在设计补土时进行的初步评估表明,可能需要5:1的良性坡度。 3:1的最终选择是带护堤,这需要长期考虑粘土矿物学,地基及其结构中的深冲积层以及全面的实验室测试程序。本文介绍了地质,矿物学,残余抗剪强度,粘土结构和采用的设计参数之间的联系,以及冲突信息的解决方案。

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