2013/03/26

JSCE Annual Meeting

Questionnaire Summary

September 5-6, 2012, Nagoya

2

1.Disaster

International Roundtable Meeting on‐ Flood , Drought, Cyclone/Typhoon, Earthquake, Tsunami,Landslide, Whirlwind, Volcanic eruption

2.Basic systems

Multilateral
Cooperation/Collaborationin Developing DisasterDisaster-Resilient
Infrastructures

Present‐Disaster management operation systems

Problem‐Incomplete hazard maps / legal systems‐Poor coordination‐Uncertain prediction of forces‐Different departments’contingency plans execution
2

Questionnaire Summary
3.Before the disaster
PresentProblem‐National disaster risk reduction andmanagement plan
‐No commitment of academic people todecision making‐Delay in education to control overall fields‐The lack of knowledge and training indisaster risk reduction

Questionnaire Summary

34

4.After the disaster
ProblemIdea‐Slow or inept response of the government
Lack of detailed system to supply enough‐Lackresources‐Clarification of the role of national/regional
government‐To develop emergency drill plans‐ToTo strengthen industry
industry‐government‐school
government school
cooperation

12013/03/26

Questionnaire Summary
5.International cooperation
PresentIdea

Effective cooperation FROMRescue team and strategy sharing,‐Rescue‐Experienced country
Effective cooperation FOR‐Disaster management package‐Establishment of academic cooperation
system ini theh world
ld (Discuss(Ditwicei a year))‐Government’s regulation of inaccurate
misleading information

Important Keywords

Important Keywords

5 Earthquake & Tsunami
 Flooda ds de Landslide Cyclone/Typhoon (Strom surge) Other disasters (Volcanic eruption, Debris flow, Drought, …)
 Monitoring & Information dissemination
 Institutional framework
 International cooperation/collaboration

Roundtable Meeting on Multilateral Cooperation/Collaborationin Developing Disaster-Resilient Infrastructures, JSCE

September 5-6, 2012, Nagoya

 Earthquake & Tsunami— Earthquake-resistant structures (design standard)— Geological map, Earthquake hazard map— Rescue, Damage evaluation— Resilient coastal structures

2011 Tohoku Earthquake Tsunami— Tsunami monitoring & warning system— Tsunami hazard map & evacuation (capacity development) (shelter)— Recovery of traffic system & infrastructures— Skilled workforce in recovery— Land-use planning— Disaster management package

東京大学
大学院新領域創成科学研究科
社会文化環境学専攻

22013/03/26

Runup height of Great East Japan Earthquake Tsunami
in Comparison with Meiji & Showa Sanriku Tsunami

History of Major Tsunamis in Tohoku Area
Date

Name

Magnitude

Maximum runup
heightEarthEarthquakeTsunami

Mm（T.P. m）

869.7.13

Jogan

8.6

4

1611.12.2

Keicho Sanriku

8.1

3

15-20
（Taro）

1896.6.15

Meiji Sanriku

6.8

4

1933.3.3

Showa Sanriku

8.1

3

2011.3.11

Great EastJapan

9.1

24.4
（Sanriku）
23.0（Ryori）
38.4(Omoe)[from Joint Survey Group for Great East Japan Earthquake Tsunami （http://www.coastal.jp/ttjt/, April 30, 2011 version)]

Process for Breaking of Armored Sloping Dikes

Strengthening
landward
slope isimportant① Separation oflandward concrete slope

HousesDestInunroyed
dated(complete,half)

1,000
Taro,
Kominato,
Shimosettai, Miyako

22,072

10,393

1,522
5,851(1,542)
15,726 268,708(4,593)

Death/Houses
Ratio
2

3,694
4,018

0.5
0.1

［from Watanabe（1998）, Central Disaster Prevention Council (HP)］

Resilient Coastal Dike
Strengthening back slope④Complete collapse

Death（Missing）

Milder back slope, toe protection

 Resilient Structure←Strengthening weakppoints for externalforces exceeding
design level

Strengthening parapet③ Break of seaward concrete slope② Wash out of sediments[top left: Google Earth]3

2013/03/26

Beach Erosion

Concept of Coastal Defense for Rehabilitation of Damaged Areas Technically possible to construct of higher structures to protect against greattsunamis,
but very costly Apartp from cost,,

BeforeBeforeBeach was protected by coastal dike

— Daily separation between land and sea causes is undesirable— Inconsistency with lifetime of structures (50 or at most 100 years)— Possibility of tsunamis even larger than the great tsunami of design level— Economic and recreational activities seaward of the coastal structures such as inports and beaches will resume

 Save human lives against tsunamis of maximum level— Relocation, artificial hill, tsunami evacuation building & tower— Multiple safety system considering tsunamis exceeding the maximum level Save human lives and assets against tsunamis of design level by structures
After

After

— Protection from tsunamis encountering once in a life
— Development of structures resilient to tsunamis exceeding design level

左：蒲生干潟、右：深沼海水浴場

Generation of Tsunami due to Earthquake

Evacuation from Tsunami
Largest class tsunami

Comparatively frequenttsunami

Tsunami evacuationbuilding/ tower
Lead time for evacuation4

2013/03/26

Important Keywords
 Earthquake & Tsunami

Important Keywords
 Flood— Earthquake-resistant structures (design standard)— Hydraulic & meteorological monitoring (water level, rain fall)— Geological map, Earthquake hazard map— River train (bank, channel dredging, floodway), Dams, Detention basin, Polder— Rescue, Damage evaluation— Flood management (dam operation)— Integrated flood control system— Resilient coastal structures

 Landslide— Tsunami monitoring & warning system— Natural & engineered slopes— Tsunami hazard map & evacuation (capacity development) (shelter)— Landslide hazard map— Recovery of traffic system & infrastructures— Monitoring of precursory phenomena— Skilled workforce in recovery— Slope reinforcement— Land-use planning— Disaster management package

Important Keywords
 Cyclone/Typhoon (Strom surge)

Important Keywords
 Monitoring & Information dissemination— Meteorological monitoring & forecasting— Automated damage monitoring— Coastal structures— Mass media (TV, radio), loudspeaker, internet, mobile phone— Strom surge hazard map and evacuation (shelter)— Integrated, systematic & consistent information dissemination

 Other disasters— Volcanic eruption— Misleading information

 Institutional framework— Debris flow

— Laws & acts

— Drought— Disaster management plan, Proactive measures— Disaster reduction programs, evacuation drill— Collaboration among central & local governments, NGOs, Scientists & Citizens— Conflict with other factors

52013/03/26

Important Keywords

Important Keywords

 International cooperation/collaboration

 Earthquake & Tsunami— Disasters are region specific, but and therefore, mutual cooperation/collaboration
effective— Earthquake-resistant structures (design standard)— International organizations, Governments, NGOs, Engineers, Scientists, Citizens— Resilient coastal structures— Structural & non-structural, Technical (Design codes) & institutional(“Disaster management package”)— Tsunami monitoring & warning system— “Asian board for natural disaster prevention/reduction”— Recovery of traffic & infrastructures— Rescue, Damage evaluation— Tsunami hazard map & evacuation (capacity development) (shelter)— Skilled workforce in recovery— Land-use planning Flood— Hydraulic & meteorological monitoring (water level, rain fall)— River train (bank, channel dredging, floodway), Dams, Detention basin, Polder— Flood management (dam operation)

 Landslide

Schedule
Year

ACECC

Board of Natural Disaster Prevention/Reduction in Asia (BoNDisPRA)

2012

Oct 23: ECM in Manila

Sep 5-6: JSCE Annual Meeting2013

Feb 24: ECM in Taiwan
Aug 25: ECM in Jakarta
Aug 6: CECAR in Jakarta

Aug: Board Meeting in Jakarta

2014

Nov: Board Meeting

2015yNov: Board Meetingg in Kyoto(World Engineer’s Convention in Kyoto)

2016

7th CECAR in Hawaii

23

Roundtable Meeting in Hawaii

6