台北都會區淹水區域預測之研究─台北都會區淹水區域預測之研究-子計畫：台北市中央區、汐止、五堵及新店地區
Date Issued
2000
Date
2000
Author(s)
許銘熙
DOI
892625Z002005
Abstract
This is a third year study result of project 5 “The Influence of mping-Station and Flood-Gate Operations on Regional Inundation of tropolitan Area” for the three-year term integrated project “A Study on
Regional Inundation Forecast of Taipei Metropolitan Area”. The study area is
enlarged in the third year study and contains the Central District, Hsien-Ten
city and Shi-Ji city. The urban inundation model is applied to simulate the
s face inundation in the study area for the Typhoon Zeb event and under the
2 -hour design rainfalls of different return periods with the operation of
pumping stations and flood-gates.
The study area located in the heart of Metropolis Taipei is selected as the
study area, which includes Taipei Downtown, Hsien-Tehn city and Shi-Ji city
o Taipei County. The rainfall data, geographic features, capacity of pumping
station and flood gate operations are put for numerical simulations. The
Typhoon Zeb event occurred in Oct 1998 is used for model verification. The an inundation model is applied to simulate the surface inundation in the study area under the 24-hour design rainfalls of 5-, 10-, 25-, 50-, 100-, and
2 0-yr return periods. Three sets of scenario simulation including (1) all of
th pumping stations and flood gates are in the condition of normal operation,
( Shinshan, Shunyuan, and Foyuan pumping stations fail to operate, (3)
Tansui No. 3, Keelung No. 4, and No. 9 floodgates cannot be turned off in
time. The results are compared to be in good accuracy and assist the
authorities concerned in proposing strategies for flood hazard mitigation
plans.
Subjects
Pumping-station
Flood-gate
Sewer system
Surface inundation
Publisher
臺北市：國立臺灣大學生物環境系統工程學系暨研究所
Type
report
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892625Z002005.pdf
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