安全与环境工程2024，Vol.31Issue(4)：68-74,7.DOI:10.13578/j.cnki.issn.1671-1556.20221318
钻爆法隧道洗尘消热与台车周边作业环境营造
Dust removal and heat dissipation around the trolley during drill-and-blast tunneling and the creation of a working environment
摘要
Abstract
The occupational health hazards faced by construction workers around the trolley are a common problem in tunnel construction using drilling and blasting methods.Based on this,a ventilation scheme is proposed for the local air purification of the air quality improvement device at the arch point inside the tunnel in collaboration with compressed air supply outside the tunnel.Using the Tingshe Tunnel of Tianba Expressway in Guangxi as an exper-imental tunnel,the dust concentration and temperature around the trolley in the tunnel were monitored and com-pared by two ventilation methods.FLUENT simulation software was used to simulate the evolution of the free SiO2 dust concentration field.The results of the study show that under the condition of installing an air quality improve-ment device and ventilation for 20 min,the high dust concentration and hydration heat phenomenon at the trolley are significantly improved.The research results have important guiding significance for improving the working envi-ronment of tunnel construction using drilling and blasting methods.关键词
隧道施工/钻爆法/空气品质营造装置/作业台车/职业健康/除尘/降温Key words
construction of tunnel/drilling and blasting method/air quality improvement device/working trolley/occupational health/dust reduction/cooling分类
资源环境引用本文复制引用
邓欢,陈世强,吴世先,刘东,赵彧,胡锦华,吴志荣..钻爆法隧道洗尘消热与台车周边作业环境营造[J].安全与环境工程,2024,31(4):68-74,7.基金项目
国家自然科学基金项目(52264016) （52264016）
交通运输部交通运输行业重点科技项目(2021-MS5-126) （2021-MS5-126）
湖南省自然科学基金项目(2023JJ50232、2023JJ50106) （2023JJ50232、2023JJ50106）
