对长江中游宜昌至城陵矶河段，近３０年来实施下荆江裁弯工程和兴建葛洲坝水利枢纽后的河道演变进行了分析，预计三峡工程建成后，本河段总体河势仍将保持稳定，局部河段的河势可能发生不同程度的调整，应加强河道演变观测，采取护岸工程措施，控制有利河势。 In the middle reaches of the Yangtze River, from Yichang to Chenglingji reachs, the evolution of the Jingjiang River tailing project and the Gezhouba Project after nearly 30 years’ implementation have been analyzed. It is estimated that after the completion of the Three Gorges Project, the overall river regime in this reach will remain stable, The river regime in some sections of the river may be adjusted to different extents. River course evolution observation should be strengthened and bank revetment measures should be taken to control the favorable river regime.