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The Reservoir按一下以編輯母片標題樣式 壹、面臨問題－表層異重流與漂流木及雜物

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The Reservoir按一下以編輯母片標題樣式 壹、面臨問題－表層異重流與漂流木及雜物 按一下以編輯母片標題樣式 2017.06 GT International This learning material was not prepared by ADB. The views expressed in this document are the views of the author/s and do not necessarily reflect the views or policies of the Asian Development Bank or its Board of Governors, or the governments they represent. ADB does not guarantee the accuracy of the data included in this presentation and accepts no responsibility for any consequence of their use. The countries listed in this presentation do not imply any view on ADB’s part as to Taiwan water challenge, ADB Presentation, June 2017- Renovation of Shihmen Reservoir for Sustainability 2017/06 0 sovereignty or independent status or necessarily conform to ADB’s terminology. Presentation按一下以編輯母片標題樣式 Outline 1. Environment Induced Water Challenges in Taiwan 2. Role of Reservoir and Condition of Siltation 3. Problems Caused by Typhoon Aere in 2004 4. Measures to Secure Potable Water Supply Following Storms 5. Measures to Secure Reservoir Volume for Sustainability 6. Concluding Remarks Taiwan water challenge, ADB Presentation, June 2017- Renovation of Shihmen Reservoir for Sustainability 2017/06 1 按一下以編輯母片標題樣式 Taiwan water challenge, ADB Presentation, June 2017- Renovation of Shihmen Reservoir for Sustainability 2017/06 2 1. Environment Induced Water Challenges in Taiwan GeographicGeographic location location of Taiwan of Taiwan 按一下以編輯母片標題樣式 Russia Mongolia North Korea Japan South Korea China Myanmar Taiwan Laos Thailand Philippines Vietnam Malaysia 3 Taiwan water challenge, ADB Presentation, June 2017- RenovationIndonesia of Shihmen Reservoir for Sustainability 2017/06 3 Geographic location of Taiwan 1. Environment1. EnvironmentalInduced Water ChallengesChallenges inin TaiwanTaiwan Geographic按一下以編輯母片標題樣式 location of Taiwan Taipei Taichung Area: 36,188 km2 Population : 23 million Density: 639 peop/km2 Kaohsiung 4 Taiwan water challenge, ADB Presentation, June 2017- Renovation of Shihmen Reservoir for Sustainability 2017/06 4 1. Environment Induced Water Challenges in Taiwan Environment按一下以編輯母片標題樣式 and Water Challenges Young/Fragile High Geology & Mountain Frequent w/steep River Earthquake Slope Water Challenges Uneven Frequent Typhoon Rainfall w/Intense Distribution Rainfall Taiwan water challenge, ADB Presentation, June 2017- Renovation of Shihmen Reservoir for Sustainability 2017/06 5 1. Environment1. Environmental Induced Water Challenges Challenges in in Taiwan Taiwan TaiwanChallenge Challenge 1 – Young 1- and Fragile Geology Young按一下以編輯母片標題樣式 and Fragile Geology Stratigraphic age ≒ 2 million years TaiwanStratigraphic water challenge, ADB Presentation, age June≒ 20172 -million Renovation of Shihmen years Reservoir for Sustainability 2017/06 6 6 1. Environment1. Environmental Induced Water Challenges Challenges in in Taiwan Taiwan Challenge 2 – Steep Slope Taiwan按一下以編輯母片標題樣式 Challenge 3- Intense Rainfall Comparison of River Slope Taiwan’s Rivers 2,400 Short Responding time 2,200 2,000 1,800 Elevation (m Elevation 1,600 Rhine River 1,400 (Europe) 1,200 1,000 800 Japan’s River ) 600 Colorado River 400 (USA) 200 200 400 600 800 1,100 1,200 1,400 Distance (km) 7 Taiwan water challenge, ADB Presentation, June 2017- Renovation of Shihmen Reservoir for Sustainability 2017/06 7 1. Environment1. Environmental Induced Water Challenges Challenges in in Taiwan Taiwan Taiwan ChallengeChallenge 3 2– -Intense Rainfall 按一下以編輯母片標題樣式 Steep River3 ~ Slope4 Typhoons per Year Typhoon Trami Typhoon Soulik Typhoon Cimaron Typhoon Usagi Typhoon Fitow - 3~4 typhoons per year. - High intensity, Long duration. 8 Taiwan water challenge, ADB Presentation, June 2017- Renovation of Shihmen Reservoir for Sustainability 2017/06 8 1. Environment Induced Water Challenges in Taiwan Taiwan按一下以編輯母片標題樣式 Typhoon Rainfall Records Rainfall Typhoon Location Ranking mm Yr. 1 3060 2009 MORAKOT Chiayi County 2 2139 2001 NARI New Taipei City Tropical Storm 3 2162 1969 Taipei City FLOSSIE 4 1987 1996 HERB Chiayi County 5 1834 1987 LYNN Taipei City 6 1774 2012 SAOLA Yilan County 7 1672 1967 CARLA Yilan County 8 1611 2008 SINLAKU Taichung City 9 1561 2005 HAITANG Pingtung County 10 1546 2004 AERE Miaoli County Taiwan water challenge, ADB Presentation, June 2017- Renovation of Shihmen Reservoir for Sustainability 2017/06 9 Challenge 4- Uneven按一下以編輯母片標題樣式 Rainfall Distribution Average Annual 63% Precipitation in Taiwan (1949~2006): 2,515 mm 69% Percent of Rainfall in Region 73% Dry Season North 37% Central 31% South 18% 82% East 28% 72% Taiwan water challenge, ADB Presentation, June 2017- Renovation of Shihmen Reservoir for Sustainability 2017/06 10 按一下以編輯母片標題樣式 Taiwan water challenge, ADB Presentation, June 2017- Renovation of Shihmen Reservoir for Sustainability 2017/06 11 2. Role of Reservoir and Condition of Siltation Water按一下以編輯母片標題樣式 Use in Taiwan Annual Rainfall Volume: 90×109m3 Total Reservoir Volume : 1.90×109m3 Unit: 109m3 Surface Runoff Ground Water Reservoir Water 7.7 5.7 4.6 Water Demand 18.0 Environmental Agriculture Potable Industry Protection 1.8 12.4 3.3 0.5 Taiwan water challenge, ADB Presentation, June 2017- Renovation of Shihmen Reservoir for Sustainability 2017/06 12 2. Role of Reservoir and Condition of Siltation Volume按一下以編輯母片標題樣式 of Main Reservoirs in Taiwan Unit: 106m3 No. Reservoir Name Initial Volume Current Volume 1 Shinshan (新 山) 10.00 9.97 2 Feitzai (翡 翠) 406.00 380.04 3 Shihmen (石 門) 309.12 204.71 4 Baoshan (寶 山) 5.47 5.50 5 Yuheshan (永和山) 29.58 30.23 6 Minder (明 德) 17.70 12.36 7 Dergi (德 基) 262.21 191.40 8 Wusher (霧 社) 150.00 44.86 9 Sunmoon Lake (日月潭) 171.62 142.56 10 Liyitan (鯉魚潭) 126.07 118.46 11 Zenyutan (仁義潭) 29.11 26.34 12 Lantan (蘭 潭) 9.80 9.80 13 Tsengwen (曾 文) 712.71 462.68 14 Nanhua (南 化) 154.41 95.00 15 Wushantou (烏山頭) 168.83 78.28 16 Mutan (牡 丹) 31.18 26.41 17 Chengkung (成 功) 1.08 1.21 SUM - 2,594.89 1,839.81 Taiwan water challenge, ADB Presentation, June 2017- Renovation of Shihmen Reservoir for Sustainability 2017/06 13 2. Role of Reservoir and Condition of Siltation Location按一下以編輯母片標題樣式 of Shihmen Reservoir Taipei Shihmen Reservoir Taiwan water challenge, ADB Presentation, June 2017- Renovation of Shihmen Reservoir for Sustainability 2017/06 14 2. Role of Reservoir and Condition of Siltation A View按一下以編輯母片標題樣式 of Shihmen Reservoir Drainage Area: 763 km2 Completed: 1963 Taiwan water challenge, ADB Presentation, June 2017- Renovation of Shihmen Reservoir for Sustainability 2017/06 15 Plan View of Original Outlet 2. Role of Reservoir and Condition of Siltation Structures按一下以編輯母片標題樣式 of Shihmen Reservoir Shihmen Canal Penstock Power Plant PRO Spillway Shihmen After Bay Reservoir Tunnel Spillway Taiwan water challenge, ADB Presentation, June 2017- Renovation of Shihmen Reservoir for Sustainability 2017/06 16 2. Role of Reservoir and Condition of Siltation Current Water Budget of Shihmen Reservoir 按一下以編輯母片標題樣式 Current Reservoir Volume: 200×106m3 6 3 Average Annual Inflow Average Annual Outflow (10 m ) 6 3 (10 m ) Irrigation Potable Water Flood Discharge 456 400 1,560 710 850 Taiwan water challenge, ADB Presentation, June 2017- Renovation of Shihmen Reservoir for Sustainability 2017/06 17 2. Role of Reservoir and Condition of Siltation Shihmen Reservoir Discharge Structures 按一下以編輯母片標題樣式 Designed Based on Traditional Approach Small bottom outlet Large spillway Intake Elevation Design Capacity Structure (m) (cms) Diversion Tunnel EL. 135.0 4,700 (plugged) Permanent River • Store Turbid EL. 169.5 34.0 Severe Outlet Water Reservoir Power Intake EL. 169.5 [email protected]=137.2 • Discharge Siltation Irrigation Canal EL. 193.5 18.4 Clear Water Tunnel Spillway EL. 220.0 2@1,200=2,400 Spillway EL. 235.0 11,400 Taiwan water challenge, ADB Presentation, June 2017- Renovation of Shihmen Reservoir for Sustainability 2017/06 18 按一下以編輯母片標題樣式 Taiwan water challenge, ADB Presentation, June 2017- Renovation of Shihmen Reservoir for Sustainability 2017/06 19 3. Problems Caused by Typhoon Aere in 2004 Facts About Typhoon Aere 按一下以編輯母片標題樣式 Date of Occurrence: August 24 and 25, 2004 Average Basin Rainfall: 973 mm Total Inflow Volume: 742 Ⅹ 106m3 Peak Inflow Discharge: 8,600 cms Peak Outflow Discharge: 6,270 cms Taiwan water challenge, ADB Presentation, June 2017- Renovation of Shihmen Reservoir for Sustainability 2017/06 20 3. Problems Caused by Typhoon Aere in 2004 View 按一下以編輯母片標題樣式of Turbid Reservoir After the Storm Taiwan water challenge, ADB Presentation, June 2017- Renovation of Shihmen Reservoir for Sustainability 2017/06 21 View of Log Accumulation in 3. Problems Caused by Typhoon Aere in 2004 Upstream按一下以編輯母片標題樣式 Reach Taiwan water challenge, ADB Presentation, June 2017- Renovation of Shihmen Reservoir for Sustainability 2017/06 22 View of Floating Debris in 3. Problems Caused by Typhoon Aere in 2004 艾利颱風衍生問題 the Reservoir按一下以編輯母片標題樣式 壹、面臨問題－表層異重流與漂流木及雜物 艾利颱洪後9月2日拍攝流木及漂浮物運移至大壩附近 Taiwan water challenge, ADB Presentation, June 2017- Renovation of Shihmen Reservoir for Sustainability 2017/06 23 26 View of Log Accumulation 3. Problems Caused by Typhoon Aere in 2004 Near按一下以編輯母片標題樣式 the Dam Taiwan water challenge, ADB Presentation, June 2017- Renovation of Shihmen Reservoir for Sustainability 2017/06 24 3. Problems Caused by Typhoon Aere in 2004 Spillway按一下以編輯母片標題樣式 Discharge During Aere Taiwan water challenge, ADB Presentation, June 2017- Renovation of Shihmen Reservoir for Sustainability 2017/06 25 3. Problems Caused by Typhoon Aere in 2004 Mudflow按一下以編輯母片標題樣式 in Penstock Taiwan water challenge, ADB Presentation, June 2017- Renovation of Shihmen Reservoir for Sustainability 2017/06 26 3. Problems Caused by Typhoon
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