土木工程与管理学报2025，Vol.42Issue(1)：34-40,7.DOI:10.13579/j.cnki.2095-0985.2025.20240325
钻爆法施工隧道粉尘迁移规律现场测试与风筒布置优化研究
Field Testing and Optimization of Air Duct Layout for Dust Migration Pattern in Tunnel Construction Using the Drilling and Blasting Method
摘要
Abstract
The drilling and Blasting method generates a significant amount of respirable dust during construction,leading to a high incidence of pneumoconiosis among workers.To address the issues of high dust concentrations and ineffective dust suppression in tunnel construction,this study analyzed dust migration patterns and optimized ventilation duct layouts through dust concentration measurement and numerical simulation analysis.The results show that dust generation varies across construction procedures,ranked as follows:shotcreting>muck removal>frame erection and mesh installation>drill-ing>charging to blasting.During shotcreting,dust concentrations fluctuate between 6-18 mg/m3;during muck removal,concentration drops to 4 mg/m3 after 10 minutes of loader operation;for frame erection and mesh installation,concentration remains stable initially and later fluctuate but do not ex-ceed 1.5 mg/m3;during drilling,concentration remains between 0.5-2 mg/m3,meeting safety stand-ards.However,post-blasting,dust concentration spikes to nearly 12 mg/m3.Numerical simulations indicate that ventilation efficiency improves when the duct outlet is positioned above the platform ele-vation.The proposed optimized layout and dust suppression measures effectively reduce dust concen-trations in tunnel,enhancing the safety of the construction environment.关键词
隧道工程/风筒布置/数值模拟/施工粉尘Key words
tunnel engineering/duct layout/numerical simulation/construction dust分类
建筑与水利引用本文复制引用
宋竹兵,梁育浩,王润豪,周阳..钻爆法施工隧道粉尘迁移规律现场测试与风筒布置优化研究[J].土木工程与管理学报,2025,42(1):34-40,7.基金项目
山西交通控股集团有限公司科技项目(2019-JKKJ-41) （2019-JKKJ-41）
