Abstract: The training work at the head of the Tianxing Bar in Wuhan reach has been applied to prevent the head and right edge of the bar from the continuous bankfailure，and to retain the stability of the river regime and navigation condition of the braided channe1. Based on the an alysis on the recent river evolution and prediction on the trend of riverbed erosion and deposition after the construction of the Th ree Gorges Reservoir，the efect of the training work is analysized.

Key words: head of the Tianxing Bar, flood prevention, fiver evolution, river regime

摘要： 为了遏制武汉市天兴洲洲头和右缘持续崩退，促使天兴洲微弯分汉河道内的天兴洲大桥桥区河段河势稳定及 航运安全，武汉市天兴洲洲头实施守护工程．根据历年河道实测资料，在分析工程实施前后工程河段的近期河道演 变和预测三峡水库运用后工程河段来水来沙和冲淤变化趋势的基础上，综合论证了天兴洲洲头整治工程效果．

关键词: 天兴洲洲头, 防洪, 河床演变, 河势