第三方检测在黄登大坝碾压混凝土质量控制中的关键作用

黄登大坝最大坝高202 m,是在建的世界第一高碾压混凝土重力坝。受地质条件及其他因素的影响,在建设过程中出现原材料质量波动、新版检测标准与旧版设计指标不匹配、粗骨料裹粉等一系列工程问题。介绍了第三方检测机构牵头解决上述工程问题的全过程,剖析了水利水电工程第三方检测如何发挥技术能力优势为工程提供优质附加服务,揭示了工程问题解决过程中第三方检测发挥的关键作用,为同类型工程建设提供有益的参考。

Key Role of Third Party Inspection in Quality Control of Roller- Compacted Concrete in Huangdeng Dam

Huangdeng dam is the world’s tallest RCC (roller-compacted concrete) gravity dam under construction with a maximum height of 202 m. Affected by geological conditions and other factors, some engineering problems emerged in the construction process. Such problems include the quality fluctuation of raw materials, the contradiction between new test standard and original design indexes, as well as the coated-powder of aggregate. In this paper, the whole process of solving the above engineering problems by the third party inspection is introduced; the advantage of the third party inspection in additional quality control service is expounded, and the key role of the third party inspection in the quality control of RCC in Huangdeng Dam is revealed so as to offer reference for similar engineering construction.