关键词: 断面淤积测量, 水下地形测量, 横向淤积特性, 纵向淤积特性, 库容特性

Abstract: Sedimentation survey of Xiaoxia hydropower station has been carried out regularly since impoundment. According to the results of sedimentation survey, the characteristics of sedimentation and reservoir storage are analyzed, and the change of sedimentation and erosion are understood. Improvement measures are put forward to alleviate reservoir sedimentation, prolong reservoir service life, maximize reservoir function and benefit, and provide scientific basis for reservoir operation.

Key words: section sedimentation survey, underwater topographic survey, transverse sedimentation characteristic, longitudinal sedimentation characteristic, reservoir storage characteristic