In the construction of hydropower stations,due to the limitations of power generation and operation,various hydraulic structures are damaged,maintained,reinforced,or rebuilt.It is necessary to consider the lack of dry land construction conditions,and the underwater concrete construction plan is currently the preferred choice.The construction of underwater self-compacting concrete has always been a hot topic of attention in hydropower engineering construction.This article elaborates on the real case of underwater repair in Jinniuping Hydropower Station from three aspects:process,quality requirements of raw materials,and construction precautions in order to provide reference for underwater repair construction.
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