大藤峡水利枢纽防洪调度实践与思考OA

The Datengxia Water Conservancy Hub is a flood control project in the Pearl River basin and an important node project in the national water network.As of July 2026,it had successfully withstood 11 numbered floods on the Xijiang River,with cumulative flood storage exceeding 5 billion m3,demonstrating remarkable flood control results.In its flood regulation practice,the Datengxia Water Conservancy Hub has made full use of monitoring results from the"three lines of defense"for rainfall and water-regime monitoring and forecasting,especially using precipitation radar to accurately monitor rainfall at the uncontrolled interval from the reservoir inflow control hydrological stations(Qianjiang,Liuzhou,and Duiting)to the dam site.This has effectively improved forecast accuracy and extended lead time,providing a valuable window for flood defense.It has also integrated the Digital Twin Datengxia and the modern reservoir operation and management matrix platform to repeatedly simulate operation risks and benefits,providing important support for flood-operation decision-making.During flood control operation,measures such as pre-releasing water in advance to free up storage capacity,intercepting floods in stages at appropriate times to shave and shift peaks,and finely controlling outflow discharge were adopted,effectively ensuring the flood control safety of downstream main and tributary rivers.At the same time,safety monitoring and assessment and reservoir operation early warnings were intensified,ensuring the safety of project operation and of people upstream and downstream.