人民黄河2024，Vol.46Issue(8)：60-64,70,6.DOI:10.3969/j.issn.1000-1379.2024.08.011
抛投防汛石沿坡面滑滚落距影响因素研究
Study on the Influencing Factors of Drop Distance of Flood Control Stone Sliding and Rolling Along the Slope During Throwing
摘要
Abstract
In order to demonstrate the influencing factors of the throwing distance of flood control stone sliding and rolling along the slope dur-ing throwing,based on the working conditions of throwing along the embankment slope in the lower reaches of the Yellow River,a model of throwing flood control stone for daily root removal and reinforcement under ideal conditions was established.The theoretical formulas consider-ing the current velocity,water depth,embankment slope and slope roughness were derived,and then the theoretical analysis results were ver-ified and compared with the flume test to find out the throwing distance law of different shapes of flood control stones.The results show that the larger the current velocity,the deeper the throwing depth,the slower the slope of the river embankment,the larger the slope roughness and the larger the drop distance of the flood control stone.The different shapes of flood control stones have different drop distances,and in the case of other factors are the same,the four-sided stone block has the smallest drop distance,which is the optimal shape.Using reinforced concrete shell and sandstone core to make a new type of large volume composite flood control stone,the field test is carried out in the lower Yellow River,and the falling distance is in good agreement with the calculated results.关键词
防汛石/落距/水槽试验/黄河下游Key words
flood control stone/drop distance/flume test/lower reaches of the Yellow River分类
交通工程引用本文复制引用
刘滨,杨德生,张淑红,熊长军,倪振强,邴龙..抛投防汛石沿坡面滑滚落距影响因素研究[J].人民黄河,2024,46(8):60-64,70,6.基金项目
山东省自然科学基金面上项目(ZR2022ME165) （ZR2022ME165）
山东黄河河务局揭榜挂帅项目(鲁黄科技验字[2023]第28号) （鲁黄科技验字[2023]第28号）
