考虑排沙运用的巴家咀水库兴利调度研究  

Study on the Operation of Profiting Regulation of Bajiaju Reservoir Considering Sediment Discharge

作　　者：蔡荨[1,2] 魏国梁 史汉忠 CAI Qian;WEI Guoliang;SHI Hanzhong(Nanjing Hydraulic Research Institute,Nanjing 210029,China;State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering,Nanjing 210029,China;Bajiaju Reservoir Management Office,Qingyang 745000,China;Tangma Reservoir Management Office,Changzhou 213352,China)

机构地区：[1]南京水利科学研究院,江苏南京210029 [2]水文水资源与水利工程科学国家重点实验室,江苏南京210029 [3]庆阳市巴家咀水库管理所,甘肃庆阳745000 [4]溧阳市塘马水库管理所,江苏常州213352

出　　处：《人民黄河》2021年第2期13-16,40,共5页Yellow River

基　　金：国家重点研发计划项目(2018YFC0407104);中央级科研院所基本业务费项目(Y719010)。

摘　　要：巴家咀水库位于甘肃黄土地貌地区,天然来水含沙量大,库区泥沙淤积严重,是典型的承担排沙任务的供水水库,亟需编制综合考虑排沙与供水运用的调度规程。为此分析了巴家咀水库来沙与排沙特性,提出一种基于实测排沙数据采用线性回归分析拟合的排沙能力反正切函数,确定了7、8月份为主要排沙期,提出敞泄排沙与蓄清排浑两种排沙方案,分别采用迭代方程试算蓄水指示线,绘制水库兴利、排沙综合调度图,结合排沙能力函数模拟多年排沙调度过程,通过比较排沙与兴利之间的衔接及排沙能力对供水保障的影响,最终确定排沙期采用蓄清排浑方式排沙,并制定综合调度方案。Bajiaju Reservoir is located in the loess geomorphology area in Gansu Province where confronts serious water resources shortage and large amount of sediment transportation and sedimentation problems.It is a typical water supply reservoir undertaking sediment discharge task.Thus,the operation regulation is urgently needed to work out with comprehensive consideration of sediment discharge and water supply.The characteristics of coming sediment and sediment discharge of Bajiaju Reservoir were analyzed.A linear reversed inverse tangent sediment e⁃jection capacity function based on real sediment discharge data was proposed.The main sediment discharge period was determined as July and August.The two sediment discharge schemes of free sediment discharging and storing clear water and releasing the muddy were adopted.The water retaining indicator curves were calculated by a set of iterative equations.The profiting and sediment discharge operation chart was then obtained.The long⁃term sediment operation was simulated by adopting sediment discharge capacity function.Considering better transform be⁃tween sediment discharge and profiting and the influence to the water supply assurance due to sediment discharge capacity,the storing clear water and releasing the muddy scheme was eventually adopted and the integrated regulation was determined.

关 键 词：排沙 兴利调度 排沙能力函数 蓄清排浑 巴家咀水库 

分 类 号：TV697[水利工程—水利水电工程]