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DAMS IN THE DARLING RANGE

机译：达令范围内的DAMS

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摘要

Geotechnical factors play a major role in the design and construction of dams in the Darling Range east of Perth. These factors are described in relation to case histories for a number of water supply dams that have been constructed over the last one hundred years. The Darling Range is underlain by the Archaean Yilgarn Craton, which consists of granitic and gneissic rocks that have been intruded in places by dolerites. Conglomerates of suspected Tertiary age occur at North Dandalup and Harvey Dams. The variable weathering in the granitic terrain requires special foundation and permeability control measures. In addition, weathering and ground water movements related to faults, shear zones and contacts contribute to adverse geotechnical conditions commonly found in the Darling Range. The effects of jointing, in particular the pervasive sheet joints, and the presence of corestones in foundation and cut-off excavations, are also described. Problems associated with natural construction materials used for dams in the Darling Range are outlined.
机译：在珀斯以东的达令山脉，大坝的设计和施工中，岩土因素起着重要作用。这些因素是与过去一百年来建造的许多供水大坝的案例历史相关的。达令山脉位于古生的伊尔加恩·克拉顿（Yargarn Craton）的下方，该遗址由花岗石和片麻质岩石组成，这些岩石被白云岩侵入。可疑的第三纪大集团聚集在北丹达鲁普和哈维水坝。花岗岩地形中多变的风化需要特殊的地基和渗透率控制措施。此外，与断层，剪切带和接触有关的风化和地下水运动也造成了达令山脉常见的不利岩土条件。还描述了节理的影响，特别是无孔板节点的影响，以及基础和挖方开挖中的核心石的存在。概述了与达令岭大坝使用的天然建筑材料有关的问题。

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