捷運地下車站火災煙流分析與人流測試(2/2)
Date Issued
2004-07-31
Date
2004-07-31
Author(s)
DOI
922212E002033
Abstract
This is a two-year project, in which two parts of research had been implemented and
the results are reported in the following, in which the text are divided into two
portions.
Part 1: SMOKE CONTROL IN FIRES OF TAIPEI TRTS SUBWAY STATION
We investigate the effectiveness of the smoke control scheme of Gong-Guan Subway
Station, a typical subway station of Taipei Rapid Transit System and whose
mechanical control systems are also standard in modern subway station design. The
three-dimensional smoke flow fields under various kinds of fires are computed by the
computational-fluid-dynamic technique and results are illustrated on various cross
sectional planes. Results indicate that, the stack effect plays a deterministic role on
smoke control when fire occurs near the stairwell; under such a circumstance, no
mechanical smoke control is necessary. When fire occurs in other places, such as at
the end or the center of platform, the current mechanical control schemes of GGSS
are effective; namely, the smoke can be well controlled, either is confined to a small
region or is evacuated out of the station, leaving the four exits free of smoke so that
the passengers can escape through them. The effect of the platform edge door (PED)
on the smoke control is also investigated. With PED, the effectiveness of the present
smoke-control system for fires occurring on the chassis of train, a serious fire in the
subway station, increases. We also propose an innovative smoke-control scheme with
PED, which turns out to be much more efficient in evacuating the smoke than used
currently. Present study provides both valuable information to the design of the
passenger evacuation routes in fires as well as criteria to the design of smoke control
system of subway stations.
PART II: THE EVALUATION RESEARCH OF EVACUATION SAFETY IN
TAIPEI TRTS UNDERGROUND STATION
This part of research utilized the buildingEXODUS for the simulation of evacuation in
Hsing-Dein subway station (HDSS), a typical underground MRT station of Taipei
Rapid Transit System (TRTS). Through this model, the inappropriate or unreasonable
evacuation routes for occupants were illustrated, and Exit Potential and Exit
Attractiveness for occupants could also be adjusted. Through the optional panel, the
user has complete control over the distribution used to represent the Occupant
attributes, which have great influence in evacuation process. Simultaneously, the
packed or staggered behavior on staircases could be revised and he/she could get better
simulation results, which are closer to the real evacuation scenarios than those obtained
from computation.
Publisher
臺北市：國立臺灣大學應用力學研究所
Type
report
File(s)![Thumbnail Image]()
Loading...
Name
922212E002033.pdf
Size
1.54 MB
Format
Adobe PDF
Checksum
(MD5):bbd22dae901a6168b4a2b7e12bf56679