融冰期西辽河主要控制断面流量变化规律及水库优化调度策略被引量：1

Flow variation patterns at major control sections of the Xiliao River during the ice-melting period and optimized reservoir operation strategies

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摘要以西辽河2025年春季调度为研究背景,以水库联合调度和海日苏水文站流量过程为研究对象,系统揭示了河道融冰-水库调度-流量演变的协同作用规律,探究西辽河春季调度期间更加合理的水库调度方式。研究表明,融冰初期需在保证行洪安全前提下适当增加水库下泄流量,以加快冰盖融化速度,抢抓有利调度窗口期;河段冰盖破裂后,依据海日苏水文站断面流量变化节点,适时调整水库组合下泄流量;开河初期,水库组合下泄流量可增加至20~30 m3/s;开河中后期需逐步增加水库组合下泄流量,以抵消入渗损失增大的影响,水库组合下泄流量可增加至50~60 m3/s,以满足开河期海日苏水文站断面60 m3/s的最优调度流量;畅流期,水库组合下泄流量需继续增大,同时遵循“调增滞后”原则调整水库组合泄流方式,规避洪峰叠加影响。该研究可为西辽河流域生态水量调度科学决策和优化管理提供理论支撑和实践指导。 Against the backdrop of the spring 2025 operation of the Xiliao River,this study focuses on the joint operation of reservoirs and the flow process at the Hairisu Hydrological Station,systematically revealing the synergistic relationships among river ice melting,reservoir operation,and flow evolution,and exploring more reasonable reservoir operation modes during the spring dispatch period.Research indicates that at the early stage of ice melting,the outflow from reservoirs should be appropriately increased under the premise of ensuring flood safety to accelerate the melting of the ice cover and seize the favorable scheduling window.After the ice cover breaks,the combined reservoir discharge should be adjusted in a timely manner according to the flow variation nodes observed at the Hairisu Hydrological Station.In the early stage of river opening,the combined reservoir discharge can be increased to 20~30m³/s;during the middle and late stages,it should be gradually increased to offset the growing infiltration losses,reaching 50~60 m3/s to meet the optimal dispatch flow of 60 m²/s at the Hairisu Hydrological Station.During the free-flow period,the combined reservoir discharge should continue to increase,while the reservoir release strategy should be adjusted following the"delayed adjustment"principle to avoid the impact of flood peak superposition.This study provides theoretical support and practical guidance for the scientific decision-making and optimized management of ecological water dispatch in the Xiliao River basin.

作者朱钦博潘英华王海玲 ZHU Qinbo;PAN Yinghua;WANG Hailing

机构地区内蒙古自治区水文水资源中心内蒙古自治区水利事业发展中心

出处《中国水利》 2025年第21期41-46,共6页 China Water Resources

关键词西辽河融冰期流量特征水库联合调度水文响应控制断面下泄流量 the Xiliao River ice-melting period flow characteristics joint reservoir operation hydrological response control section discharge flow

分类号 TV213 [水利工程—水文学及水资源]