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美国垦务局负责其位于美国西部一些坝和其他机构(主要是内务部的机构)要求该局负责的一些坝的安全。安全改造项目的筹资作为垦务局大坝安全计划的一部分(包括非常溢洪道与正常溢洪道的改建)来进行管理。垦务局已经使用碾压混凝土(RCC)来设计和改建几座溢洪道。RCC有许多优点,包括费用减少、施工快以及能够适应各种结构等。RCC浇筑速度对设计与设备都很敏感,因此,正确计划与选择施工方法对于顺利施工是必不可少的。垦务局溢洪道施工项目采用了各种方法进行RCC的配料与拌和、输送、浇筑和压实。在这些项目的施工期间,已经确定了可能妨碍施工进展的几个碍事点。
The Bureau of Reclamation is responsible for the safety of some of its dams, which are located in the western United States and some of the other agencies (mainly the Ministry of Internal Affairs) that require the agency’s responsibility. Funding for safety retrofit projects is managed as part of the Reclamation Bureau’s dam safety plan, which includes the rehabilitation of very spillways and normal spillways. Reclamation has used RCC to design and retrofit several spillways. RCC has many advantages, including reduced costs, quick construction and adaptability to various structures. RCC placement speed is sensitive to both design and equipment, so proper planning and selection of construction methods are essential to smooth construction. Reclamation Bureau spillway construction project using a variety of methods for RCC ingredients and mixing, transportation, pouring and compaction. During the construction of these projects, several obstacles that could hinder the progress of construction have been identified.