摘要
Abstract
Based on the Jinan Yellow River shield tunnel project,this paper calculates the minimum required air volume under various working conditions of large-diameter slurry balance shield tunnel according to relevant specifications and health standards,and designs the ventilation mode and equipment selection according to the maximum required air volume and air pressure.The calculation results show that the required air volume calculated according to the dust exhaust wind speed is the maximum required air volume of the shield tunnel,the size is 2 730 m3/min,and the maximum air pressure is 4 350 Pa.Using a single air duct with a diameter of 2 m can meet the on-site ventilation requirements.The re-search results can provide some reference value for similar projects.关键词
隧道工程/泥水平衡盾构/通风计算/设备选型Key words
Tunnel engineering/Slurry balance shield/Ventilation calculation/Equipment selection分类
交通运输
