立堵截流计算原理、程序编制及工程应用  

Calculation Principle,Programming and Engineering Application of Vertical Closure

作　　者：张进 Zhang Jin(Guangdong Hydropower Planning&Design Institute Co.,Ltd,Guangzhou 510635,China)

机构地区：[1]广东省水利电力勘测设计研究院有限公司,广东广州510635

出　　处：《广东水利水电》2021年第1期88-92,共5页Guangdong Water Resources and Hydropower

摘　　要：为适应工程截流条件的复杂多样性,以立堵截流水力学的计算原理为依据,引入初始边界条件Hc——截流初始分流建筑物进口的水深,将落差比Z/Z max修正为(Z+H c)/(Z max+H c)、分流公式Q f=(Z/Z max)nQ 0修正为Q f=(Z+H c)/(Z max+H c)nQ 0,扩大了截流水力学计算的应用范围,并编制了电算程序。经多宗工程的截流设计实践,计算成果合理可靠。In order to adapt to the complexity and diversity of engineering closure conditions,this paper starts from the calculation principle of vertical closure hydraulics,introduces the initial boundary condition H c——the water depth at the entrance of the initial diversion building for closure.The drop ratio Z/Zmax is modified into(Z+H c)/(Z max+H c)and diversion formula is modified into.As a result,the application scope of hydraulic closure calculation is expanded,and the computer program is worked out.The calculation results are proved to be reasonable and reliable through closure design practices of many projects.

关 键 词：立堵截流 龙口水力学 截流落差 泄流指数 

分 类 号：TV551.21[水利工程—水利水电工程]