主要介绍近十年来，我院围绕三峡、南水北调等大型水利水电工程和长江中下游河道治理、开发利用工程的泥沙问题以及泥沙运动基本问题所开展的研究工作。１　三峡工程泥沙问题研究三峡工程泥沙问题关系到枢纽建筑物的布置、施工期和建成后的运行、水库寿命、长江的防洪、航运、? In the past ten years, our hospital has mainly focused on the large-scale water conservancy and hydropower projects such as the Three Gorges Project and the South-to-North Water Diversion Project and the river sediment management in the middle and lower reaches of the Yangtze River, sediment development and utilization projects, and basic research on sediment movement. 1 Study on Sediment of the Three Gorges Project The issue of sediment of the Three Gorges Project is related to the layout of the pivotal buildings, operation during construction and after completion, reservoir life span, flood control and shipping of the Yangtze River.