integrated urban flood risk management solutions in practice · jbp technologies tsunami...
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Integrated Urban Flood Risk management solutions in practice
2016/3/92
Creating an environment to solve Disaster Risk Reduction issues effectively
2016/4/213
Is there one solution for the urban flood risk management?
2016/4/214
The Urban Flood Risk Management
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Natural Disaster
2016/4/216
Before After
Around Natural Disaster
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Before JBP
2016/4/218
Establishment of JBP
2016/4/219
Role of JBP
2016/4/2110
ANET Co., Ltd.* KOZO KEIKAKU ENGINEERING Inc.*Asia Air Survey Co., Ltd. KUROSAWA CONSTRUCTION CO., LTD.CTI Engineering Co., Ltd.* Mitsubishi Electric CorporationCTI Engineering International Co., Ltd.* Mitsubishi Research Institute, Inc.*Daiwa Lease Co., Ltd. MITSUI FUDOSAN CO., LTD.*DENTSU INC. NEC Corporation*e-TRUST., Ltd. Nikkei Business Publications, Inc.Fujita Corporation NIKKEN SEKKEI LTD.*FUJITSU LIMITED* NIPPON KOEI CO., LTD.Furuno Electric Co., Ltd. Nippon Steel & Sumikin Metal Products Co. Ltd.*GIKEN LTD.* NTT DATA Corporation*H B II Co., Ltd. OYO CorporationHitachi, Ltd. Panasonic System Networks Co., Ltd.Hitachi Zosen Corporation* PASCO CORPORATION*IBM Japan, Ltd.* Remote Sensing Technology Center of JapanIDEA Consultants, Inc. SHIMIZU CORPORATION*IMV CORPORATION SHINKO KENZAI LTD.ITOCHU Techno-Solutions Corporation Suncoh Consultants Co., Ltd.Japan Conservation Engineers & Co., Ltd.* TODA CORPORATIONJapan Innovation Network* Toyo Construction Co., Ltd.Japan Radio Co., Ltd. Weathernews Inc.KOKUSAI KOGYO CO., LTD.* Yachiyo Engineering Co., Ltd.
Introduce various DRR technologies to foreign countries
Assist customers to find appropriate solutions
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Pre
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JBP TechnologiesTsunami
Monitoring
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Government Academia
Private Sector
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Integrated Urban Flood Risk Reduction
Measures
April 20th , 2016
Integrated Urban Flood Risk Management Guidebook
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Building drainage channels and floodways
Incorporating “urban greening” such as wetlands and environmental buffers
Creating flood warning systems
Land use planning for flood avoidance
- World Bank, February 2012
Slit Dam “Non-Frame” Safeguard Tower Marine Barrier
STEEL FRAME DAM
WITH “FLEXIBILITY”
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STEEL SLIT DAM
Steel Slit dam
Preserve a Natural ecosystem “through the Mountain to the Sea”
Normal timeCapturing mudflow and
driftwood
In normal time: passing harmless sand and water from the mountains to the lower stream
In a time of disaster: capturing mudflow and driftwood, and protecting human life
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Project example in Philippines
Type : Slit type A
Location : Anilao river upper stream, Ormoc, Leyte island
Construction period : 1998 to 2001
Purpose: Flood disaster prevention(driftwood, debris flow)
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Captured driftwood and sediment
Project site
Project example in Taiwan
Type : Slit type B and its modified ver.
Location :中興大学惠蓀林場内蘭島渓
Highlights: Effectively captured debrisflow & driftwood in 2013
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Project site
Right after construction Captured driftwood and boulders
Landslide prevention method
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集水井説明スライド
river
Catchment well
Water collecting boringSlip plane
Draining boring
“Ground water draining & Catchment well” is applied to reduce activity of the landslide by lowering the groundwater level
TELESCOPIC DRAINAGE PIPE
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TELESCOPIC DRAINAGE PIPE
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U-FLUME
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NONFRAME ® Method is a kind of soil-nailing, which can preserve vegetation
NONFRAME ® Slope Stabilization
Construction exampleSlope angle 30～60°
Base plate
Steel bar
Wire rope
2.0 m
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Construction image
Slope stabilizing image
Right after construction, NFM doesn’t yet show its effect
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Right after construction, NONFRAME ® doesn’t yet show its effect
SLOPE PROTECTION/RECOVERY
WITH GREEN LANDSCAPE
Project example
1 year after construction,
the site was perfectly covered with vegetation
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CONSTRUCTION EXAMPLE IN TAIWAN
Gabion box is made of welded steel mesh, used as retaining walls, river bank conservation, etc.
Easy to install
(in case of retaining wall)
GABION BOX
Right after construction 4 months later
Not only stones, soil are available as filler, so we can greening outside of the box
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ロジャナ工業団地（2011年10月）
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COLD FORMED SHEET PILES
April 20, 2016
Nanako MORISHIMA
eTRUST Co., Ltd.
Community-based Flood Monitoring System
Overview of the flood monitoring system
This flood monitoring system enables you to observe remote
locations and detect signs of flood. It is helpful for early warning.
Internet Cloudmonitoring stations
Flood monitoring web service
Advantages are;Able to deploy anywhere at minimum cost,
time and maintenance.- Driven by solar power and sending data
through mobile phone network.
- Consisted by commodity parts and it can be
procured in local market.
Optional sensors are available.
Provide through the Internet as a cloud
service. - Initial investment is saved.
- Get the information anywhere and anytime
as long as the internet access is available.
Advantages of the system
Solar panel
Camera &
communication
Module
Battery box
Senor
Flood monitoring web site
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Current picture
Current water level
Logged data of time series
Nagaoka city Bosai system
Lesson learned from experience
- July 13th, 2007 Torrential downpours
- July 30th, 2011 Torrential downpours
Nagaoka Bosai Homepage http://www.bousai.city.nagaoka.niigata.jp/6
Obtained information of the station
The latest image
（every 10 min）
Normal
Everyone can access the web site and get the
visual data from the Nagaoka Bosai homepage.
The city officials can access further information.
Deployed world wide
The system has been deployed in BD, PH, MM, BR for Flood monitoring purpose.
The Philippines
Myanmar
Brazil
Bangladesh
Philippines :Flood Monitoring System
Pictures in Time Series
Comparison8
Water level
Time of flooding
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Geospatial application in Urban Flood Risk Management
Kokusai Kogyo Co., Ltd. [KKC] So Seyama
Tokyo, JAPAN
Presented at Technical Deep Dive on Integrated Urban Flood Risk Management
Tokyo, JAPAN
April. 20, 2016
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For example… Urban Flood Risk Management in Japanese Case
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SAR imagery [COSMO-SkyMed] Flooded Area Assessed from SAR RGB satellite imagery
DRR: Flooded area assessment September 2015 – Typhoon #18 Flooding [Executed as part of rapid response]
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A
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→ ：Direction
Falling direction
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Elevation mesh Legend
10 砂防学会誌，新砂防 Vol.63,No.6（2011）
1/2,500
1/200,000
Web based GIS system to inform hazard risks and prediction report GIS customization can adopt different events (i.e. flood, landslide)
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Water Asset Maintenance using 3D Mapping Technology
Bridge Maintenance
UAV Laser Scanner
Accurate [Scale, Time, Location] Precision [Detail imaging] 3D data [Point cloud, CAD]
Watergate Maintenance
3D point from UAV images
Levee, Dike Maintenance
Crack detection
Levee 3D point
MMS [Boat] + UAV
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