水电站碾压混凝土双曲拱坝灌浆施工技术

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在科技的推动下,目前我国的水利水电工程建设施工技术已经取得了很大的成就,施工水平已经达到国际化标准,水电站中碾压混凝土双曲拱坝的成功修建和运行就足以证明这一点。双曲拱坝是在纵向和横向同时弯曲的拱坝,这种堤坝结构是采取变中心、变半径的布置方式,很好利用拱的作用将水流带来的冲击力传递给两岸的基岩,使坝体结构更稳定,双曲拱坝使水电站布置更加灵活,对于底部狭窄的河流上的应用效果更好。碾压混凝土双曲拱坝具有稳定性能好,安全性高,更经济的特点,但同时施工难度也相对较大,现本文主要探讨其施工中灌浆技术的施工工艺。 Under the impetus of science and technology, at present, the construction technology of water conservancy and hydropower projects in China has made great achievements. The construction level has reached international standards. The successful construction and operation of the RCC arch dam in hydropower station is enough to prove this point . The double-curvature arch dam is an arch dam that is curved both in the longitudinal direction and in the lateral direction. This dam structure adopts a variable center-and-radius arrangement and utilizes the effect of the arch to transmit the impact force of the water flow to the bedrock on both banks. The dam structure is more stable, the double curved arch dam makes the layout of the hydropower station more flexible, and has a better effect on the narrow river at the bottom. The RCC double-curvature arch dam has the characteristics of good stability, high safety and economy, but at the same time the construction difficulty is also relatively large. This paper mainly discusses the construction technology of the grouting technology in its construction.
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