孤峰河下段流域防洪除涝规划治理研究OA

The lower reaches of Gufeng River Basin are located in the eastern part of Nanling County,Anhui Province,at the confluence of Qingyi River and Zhanghe River.It is an important part of the"Three Rivers Basin"of Shuiyang River-Qingyi River-Zhanghe River in the lower reaches of the Yangtze River.The region features compound landforms of hills,plains,and polder areas,with complex water system structures and obvious superimposition effects of upstream and downstream floods,placing great pressure on the flood control and waterlogging prevention system.In recent years,affected by changes in regional engineering conditions and hydrological regimes,the original flood control and waterlogging prevention system can no longer meet the needs of economic and social development in the new era.Based on the assessment of the current flood control capacity of the basin,this paper proposes a planning and treatment scheme,conducts multi-scheme comparison based on engineering quantity,investment estimation,and implementation feasibility,and determines the engineering scheme meeting the planned treatment standards.Meanwhile,the project scale is verified through flood routing calculation.The research results can provide reference for flood control and waterlogging prevention planning in hill-plain-polder compound small basins.