广东水利水电Issue(4)：13-19,7.
浅深度矩形折板竖井消能优化研究
Optimization Study on Energy Dissipation of Shallow Burial Depth Rectangular Baffle-drop Shaft
摘要
Abstract
Taking the Shenzhen Shawan River deep tunnel project as an example,a three-dimensional numerical simulation method was used to study the energy dissipation problem of shallow rectangular baffle-drop shafts in urban deep tunnel projects under the limitation of baffle plate quantities.The results show that under shallow buried conditions,when the number of baffle plates is limited,the synergistic optimization of plate length and spacing can effectively improve the energy dissipation effect.Shortening the first plate to 4.75 m and the last plate to 5.25 m can ensure that the water flow forms a free fall between each plate and accurately falls into the water cushion zone at the bottom of the well for energy dissipation.The height of the water mass in the baffle ponding zone is significantly lower than the position of the ventilation hole,and the possibility of water splashing affecting ventilation is relatively small.The maximum impact pressures of each baffle plate and bottom plate are 52.0 kPa,52.3 kPa,48.0 kPa,and 59.8 kPa,respectively.The research results can provide reference for similar projects.关键词
深隧排水/矩形折板竖井/浅深度消能/流态优化/数值模拟Key words
deep tunnel drainage/rectangular baffle-drop shaft/shallow buried depth energy dissipation/flow state optimization/numerical simulation分类
交通工程引用本文复制引用
产斯东,廖智颖,张金明..浅深度矩形折板竖井消能优化研究[J].广东水利水电,2026,(4):13-19,7.基金项目
国家自然科学基金项目(编号:52401356) （编号:52401356）
国家重点研发计划项目(编号:2023YFC3007900). （编号:2023YFC3007900）
