泄流建筑物异型挑流鼻坎三维设计研究  

Research on Three-dimensional Design for Special-shaped Flip Bucket of Flood Releasing Structure

作　　者：张俊[1] 刘飞鹏[2] 邱勇[1] 龚爱民[1] 王力[1] 

机构地区：[1]云南农业大学水利学院,云南昆明650201 [2]国家林业局昆明勘察设计院,云南昆明650216

出　　处：《水电能源科学》2015年第7期97-100,共4页Water Resources and Power

摘　　要：受地形地质条件限制,水利工程中常采用异型挑流鼻坎解决消能问题,但也给异型挑流鼻坎体型的设计带来很多难题。为研究某水库工程的挑流鼻坎最佳体型,运用BIM三维建模技术,采用挑流消能鼻坎底板和边墙三维联动,改变挑流鼻坎的边墙偏转角、底板右挑高角和挑角三个参数进行结构优化设计。通过对三个设计方案进行数值模拟比选出最佳方案,并推求出最优挑流鼻坎的底板三维函数。结果表明,偏转角为19.814°、右挑高角为0°~arctan（1/12）、挑角为25°方案的挑流水舌成功规避了右岸冲刷,消能效果良好,对泄流建筑物的异型挑流鼻坎三维设计具有重要参考意义。Hydraulic engineering limited by topography and geology conditions otten adopted special-shaped tllp buck- et to solve the problem of energy dissipation. But it brings many problems for design of special shaped flip bucket＇s size. In order to research the best size of flip bucket in a reservoir project, three-dimensional modeling technology BIM was used to optimize its structure based on the change of three parameters including deflection angle of sidewall, gradually ris- ing angle of RH floor plate and pick angle by using three-dimensional linkage of floor plate and sidewall. The best scheme was selected from three schemes by numerical simulation, and three-dimensional function of the floor plate was derived. The results show that the discharge flow from the best optimized scheme whose deflection angle of sidewall is 19. 814°, gradually rising angle of RH floor plate is 0°-arctan（1/12） and pick angle is 25° avoid the erosion of the right bank slope and it has good energy dissipation effect. It has important significance for three-dimensional design of flip bucket of flood releasing structure.

关 键 词：泄流建筑物 挑流鼻坎 异型体 三维设计 

分 类 号：TV135.23[水利工程—水力学及河流动力学]