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溪洛渡水电站工程规模巨大,该工程位于金沙江下游高山峡谷中,地形复杂,水位落差比较大,水文情况复杂,截流施工影响因素较多,难度较大,截流施工的成败关系到整个水电站工程进展。本文重点对截流施工技术进行阐述,从截流方案筛选、水文气象条件分析、截流抛投材料的备选、截流施工道路的布置、截流资源的配置、戗堤进占进度安排、龙口设计、龙口合龙、闭气等一系列技术进行详细分析,在技术上为成功截流提供技术支持。
The project of Xiluodu Hydropower Station is huge in scale. The project is located in the alpine valley at the lower reaches of the Jinsha River. Due to complex topography, large water level drop, complicated hydrological conditions and more influential factors in river closure construction, the success of river closure construction is related to the progress of the entire hydropower project. This article focuses on the construction technology of the river closure, from the river closure plan screening, hydrological and meteorological conditions, interception and throwing materials alternative, intercepting the construction of the road layout, the interception of resources allocation, embankment advancement schedule, Longkou design, Breath and a series of techniques to conduct a detailed analysis of the technical closure for the successful closure to provide technical support.