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RCC CONSTRUCTION & QUALITY CONTROL FOR BURNETT DAM

机译:伯内特大坝的碾压混凝土施工与质量控制

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摘要

The Burnett Dam is a 50m high Roller Compacted Concrete (RCC) Dam with a total RCC volume of 400,000 m~3. It is located on the Burnett River, approximately 50km inland from the town of Childers in Queensland, Australia. The design of the dam commenced in 2003, construction started in November 2003 and the dam will be completed by the end of 2005. This paper discusses the construction processes, the extensive quality control program and the innovations developed for the RCC dam construction. Key features of the project discussed in this paper are: 1. The low cement RCC mix design and its optimisation during the construction stage. 2. Thermal issues and elimination of the need for cooling. 3. Performance of the 'all-in-one' aggregate stockpile. 4. Dual pugmills for RCC production. 5. RCC delivery in different areas of the dam undertaken by conveyor, Creter crane and trucks. 6. Extensive laboratory and field testing used to evaluate and improve production and quality control procedures including an analysis of the Lift Joint Quality Index. During construction, special emphasis was given to the inspection of the processes of production, transportation, delivering, placement, compaction and curing of the RCC.
机译:伯内特大坝是50m高的碾压混凝土(RCC)大坝,RCC总体积为40万至3万。它位于伯内特河上,距澳大利亚昆士兰州的Childers镇内陆约50公里。大坝的设计始于2003年,大坝的建设于2003年11月开始,大坝将于2005年底完成。本文讨论了RCC大坝的建设过程,广泛的质量控制计划和创新。本文讨论的项目的主要特点是:1.低水泥RCC配合比设计及其在施工阶段的优化。 2.散热问题,无需冷却。 3.“多合一”总储存量的表现。 4.用于碾压混凝土生产的双碾泥机。 5.通过输送机,履带式起重机和卡车在大坝的不同区域进行RCC输送。 6.用于评估和改进生产和质量控制程序的广泛实验室和现场测试,包括对提升接头质量指数的分析。在施工期间,特别重视对碾压混凝土的生产,运输,交付,放置,压实和固化过程的检查。

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