哥斯达黎加拉加里塔水电站一直面临泥沙淤积问题,该地区具有小水库或调节蓄水池、在用电高峰时段提供电力供应的其他许多水电站同样存在此问题。沉沙池的失事加剧了该问题的严重性。为此,分析了几种常用水库清淤方法的不足,并详细阐述了SediCon疏浚机这一新型疏浚技术的应用效果。此外,简要介绍了其他水电站面临的类似问题。 The Lagarita Hydropower Station in Costa Rica has been facing the problem of sedimentation, which is also present in many other hydropower stations that have small reservoirs or regulators in the area that supply electricity during peak hours. The failure of the grit tank exacerbated the seriousness of the problem. Therefore, the deficiency of several common dredging methods for reservoirs has been analyzed, and the application effect of this new dredging technology of SediCon dredger has been elaborated. In addition, a brief description of similar issues facing other hydropower stations is provided.