关键词: 抽水蓄能电站, 堆石坝, 沉降, 监测

Abstract: The main dam of upper reservoir of a pumped storage power station is the highest among pumped storage power stations worldwide, and the largest reservoir basin filling project in China. Accurate and long-term monitoring of the settlement of reservoir basin and main dam is very important for understanding the later operation of this project. Therefore, the internal settlement monitoring design is targeted, mainly adopting the scheme of tube settlement gauge that is currently most used in China. Due to the complexity of buried pipelines, some improvements have been made in the conventional scheme. According to current monitoring results, the instruments work well, and the monitoring results are in good agreement with the values measured by structural calculation, which can provide engineering reference for other similar projects powevstaation.

Key words: pumped storage power station, rockfill dam, settlement, monitoring