公路长隧道土壤空气净化法物理模型试验研究  

Research on physical model experiment of soil air purification method in long highway tunnel

作　　者：许章隆 陈相[1] 屈直 陈文[1] Xu Zhanglong Chen Xiang Qu Zhi Chen Wen(College of Civil Engineering, Chongqing Jiaotong University, Chongqing 40007)

机构地区：[1]重庆交通大学土木工程学院,重庆400074

出　　处：《工程建设》2017年第8期21-27,32,共8页Engineering Construction

摘　　要：采取土壤净化法对隧道内污染气体集中处理,既节能环保又易于管理,净化过程中不会产生二次污染物,是一种生态型大气污染治理新技术。本文详细阐述了土壤空气净化法基本原理,通过对长大公路隧道通风系统组成、通风方式等进行分析,提出了经济高效的大断面隧道污染空气集气方法,并对土壤基质层配比及试验系统进行了优化设计。试验结果显示:该法对目标污染物去除效率可达到90%以上,并满足耐久性需求。As a relatively closed space, tunnel has a congenital advantagefor reducing pollutant emissions. The method of soil purification is a new technology of ecological air pollution control, which can be used to treat the polluted gas in the tunnel. It is not only energy saving and environmental protection, but also easy to manage. In this paper, the basic principle of soil air purification was expounded. Through the analysis of ventilation system composition and ventilation mode oflong-sized road tunnel, an economical and efficient method of pollution air collection in large section tunnel was put forward. The optimum design of soil matrix layer matching and physical model test system was carried ont. The results of model test show that the method can achieve more than ninety percent of target pollutant removal, and meet the durability requirement.

关 键 词：土壤净化法 模型试验 系统优化 隧道通风 

分 类 号：U453.5[建筑科学—桥梁与隧道工程]