综合管廊地面不锈钢送排风口施工技术

Construction of the Ground Stainless Steel Air Outlet in the Comprehensive Utility Tunnel

地下综合管廊由标准段与节点组成。管廊节点作为管廊整体的一个重要组成部分,在管廊系统中扮演管线的"十字路口"角色,其中节点主要分为上出线节点和下出线节点。六盘水地下综合管廊主要采用下出线节点的结构形式。送排风风口均安装在节点-1层底板上,电力舱与热力舱均采用机械排风、自然进风的形式进行平时通风或者事故通风,燃气舱采用机械送风、机械排风的形式进行通风,在送风节点还有疏散通道与送风风口合用的多用途风口,针对管廊的地面送排风风口进行设计与分析。

The underground utility tunnel is composed of standard section and joints. As an important part of utility tunnel, the joints play the role of the pipeline ＇ crossroads＇ , of which the joints are divided into upper outlet joint and lower outlet joint. Liupanshui utility tunnel mainly applies lower outlet joint. The air outlet opening is installed on the ground of B1. And the power module and thermal module adopt the type of mechanical exhaust and natural air supply for ordinary or accident ventilation, and gas module applies mechanical exhaust and air supply for ventilation. There are multipurpose air openings for evacuation passage and air supply outlet. The design and analysis for ground stainless air outlet of utility tunnel are discussed.