4.7 Article

A method for design of smoke control of urban traffic link tunnel (UTLT) using longitudinal ventilation

Journal

TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY
Volume 48, Issue -, Pages 35-42

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tust.2015.02.001

Keywords

Longitudinal ventilation; Urban traffic link tunnel; Smoke control; Hydraulic analysis; Looped network

Funding

  1. National Natural Science Foundation of China (NSFC) [51106189, 51178482]
  2. Natural Science Foundation Project of CQ CSTC [cstc2011jjA0007]
  3. Fundamental Research Funds for the Central Universities [106112013CDJZR210001]
  4. 111 Project [B13041]

Ask authors/readers for more resources

An urban traffic link tunnel (UTLT) typically consists of a looped main tunnel and several adjoining ramp tunnels. This complex network system creates a high level of fire risk and complicates smoke control. A generic design procedure to control the smoke flow in a UTLT with longitudinal forced ventilation is proposed in this paper with the relevant design criteria. The ventilation network in a UTLT is divided into three characterized regions: smoke discharge branches, smoke-prevention branches upstream of the fire and the smoke-prevention branches downstream of the fire. This conceptual division converts the looped ventilation network into a branched one, where a simple, one-dimensional calculation approach can be used to develop an appropriate ventilation system, and to solve the flow rates for the various branches. The ventilation system in a UTLT was determined using this novel design method, and the resultant flow rates for the key branches were compared to the steady-state solutions for a three-dimensional numerical simulation. The results demonstrate that the method proposed in this paper is a valid and efficient design tool for controlling smoke in UTLTs. (C) 2015 Elsevier Ltd. All rights reserved.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.7
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available