融合数字孪生的长江防洪调度智能演练技术与应用OA

To improve the"four-pre"(forecast,prediction,pre-warning,and pre-plan)flood control system in the Changjiang River Basin and strengthen operational capabilities for extreme flood events,this study develops an intelligent drill flood regulation system empowered by digital twin technologies.This system involves constructing a multi-source heterogeneous information resource repository and a CJH model application marketplace,developing a knowledge platform for flood regulation of hydraulic project,and investigate techniques including historical rainstorm transposition,integrated forecasting-regulation simula-tion,and real-time interactive forward-reverse intelligent pre-running modeling,and ultimately building a refined digital sce-nario for the entire basin.Using the"1981·7+"extreme flood as a typical case,the study systematically demonstrates the flood regulation drill workflow.Results show that historical rainstorm transposition can be completed within minutes,basin-wide flood simulation covering over 500 nodes with a 10-day forecast horizon achieves second-scale computation,and intelligent scheme recommendation reaches minute-level efficiency.In the"1981·7+"drill,the recommended scheme reduces the peak dis-charge at Cuntan Station by approximately 6 000 m3/s,lowers the maximum regulated water level of the Three Gorges Reservoir by 1.0 m,and shortens the river length of exceeding resettlement-line by 12.4 km.These findings confirm that the digital-twin-based intelligent drill system significantly improves the timeliness and accuracy of basin-scale flood regulation exercises.Its standardized procedures and multi-tiered regulation strategies exhibit strong practical applicability,providing efficient and feasi-ble technical support for extreme flood defense in the Changjiang River Basin.