某工程泄水建筑物泄洪雾化范围计算分析

Calculation and Analysis of Flood Discharge Atomization Range of Sluice Structure in a Project

为了减少泄洪雾化带来的工程影响和损失,笔者结合工程实例,根据理论公式对表孔溢洪洞、泄洪冲沙洞在不同水位下的雾化范围进行估算,并依据估算结果提出针对性工程设计建议。结果表明:表孔溢洪洞在校核洪水位下雾化影响范围最大;该工程的厂区虽位于强暴雨区横向影响范围以外,但处于雾流降雨区范围之内,设计时需考虑雾化对厂区电气设备带来的不利影响;出口边坡局部位于强暴雨区和雾流降雨区范围内,需对边坡进行加固处理并采取表面防护措施,确保边坡运行安全稳定。计算成果可为工程布置、设计提供理论支撑。

In order to reduce the engineering influence and loss caused by flood discharge atomization,the author combines engineering examples and estimates the atomization range of surface hole spillway tunnel and flood discharge and sand flushing tunnel at different water levels based on theoretical formulas,and puts forward the corresponding engineering design suggestions according to the estimation results.The results show that the atomization influence range of the surface hole spillway tunnel is the largest under the check flood level;Although the plant area of the project is located outside the horizontal influence range of the heavy rainstorm area,it is within the range of the fog flow rainfall area,the adverse effects of atomization on the electrical equipment in the plant area should be considered in the design;The exit slope is partially located in the area of strong rainstorm and atomized flow rainfall area,it is necessary to reinforce the slope and take surface protection measures to ensure the safety and stability of the slope operation.The calculation results can provide theoretical support for engineering layout and design.