国総研ニューズレター
NILIM News LetterNo.55

Winter 2016

■ Full size shallow landslide model test using soil from Izu-Oshima
Sabo Department, Sabo Risk Management Division
To clarify the mechanism of the occurrence and expansion of aslope collapse caused by localized heavy rain in volcanic regions, afull size slope collapse model test using soil from Izu-Oshima wasconducted.
In recent years, in the Aso region, Izu-Oshima and other volcanic
regions, shallow landslides have occurred, claiming many victims.
As one cause, it has been pointed out that collapsed soil fluidizes tooverflow rugged ground and spread over a wide area.
The Ministry of Land, Infrastructure, Transport and Tourism takes
such circumstances seriously and has begun research to clarify themechanism of landslides. At this time, the NILIM and the Japan
Landslide Society (below, “JLS”) are working to “clarify large-scale
shallow landslide occurrence mechanism under localized heavy rain
and develop dangerous land identification technologies” under athree year plan that started in 2014. This test was performed as partof this research.
To perform this test, similar soil was sampled from near slopes that
actually collapsed in Izu-Oshima with the cooperation of Metropolitan
Tokyo and Oshima-machi Town. On December 11, 2015, in the large
rainfall test facility located at the National Research Institute for
Earth Science and Disaster Prevention, soil layer thickness etc. wasreproduced in full size, and rainfall with intensity of 100mm/h wasapplied to perform a trial collapse. The collapse began about midway
on the slope, and immediately spread towards the top of the slope. In

particular, it was confirmed that a collapse that has expanded to the
top of a slope overflows the soil that collapsed first then flows for along distance (Photo).
Based on a detailed analysis of this test that the JLS performed,
the Sabo Risk Management Division wants the achievements of thetest to be applied to nationwide sediment disaster countermeasuresby, for example, improving the precision of future sediment disasterwarning information and improving facilities.
Before collapse

External view of test model
Immediately after collapse(first wave flow time)

After collapse stops(second wave flow time)

Provided by the Japan Landslide Society

Photo: Views of test model and collapse■ Dispatching Road Maintenance Experts ~ Technical Assistance to Municipal Governments ~Road Structures Department
NILIM helps road administrators manage aging road structures.
As one of its support activities, it has sent NILIM experts tothree municipal governments with structures requiring expert
assessments.
The Ministry of Land, Infrastructure, Transport and Tourism(MLIT) has sent experts to municipal governments since last year to
support their inspection and structural safety assessments in the faceof increasing aging and deteriorated road structures in Japan.
This year, upon requests from municipal governments, MLIT
regional bureaus supported three municipal governments with threefacilities including two road bridges and a shed. NILIM also sent
researchers with rich technical expertise to help corresponding MLIT
regional bureaus conduct investigations and assessments of theirstructural safety.
The NILIM researchers performed on-site investigations and givetechnical advice concerning investigation planning and appraisal of
the investigation results based on their knowledge and experience
gained through their earlier researches and on-site investigations.
For example, the NILIM researchers visited the Sarukai Bridge inNovember 2015 with regional bureau engineers (Photo) and observed
the condition of its structural members and then gave advice onreasonable remedial and preventive work plans to maintain the bridge.
The final reports will be submitted to those municipal governments

respectively by MLIT regional bureau and regional bureau andNILIM working together to come up with the reasonable advice.
Table: Facilities where a Direct Control Diagnosis was done
Road structure name

City, town, or village
nameBody conducting thesupport

Numao ShedShimogomachi(Fukushima Prefecture)

Tohoku Regional
Development Bureau

Sarukai Bridge

Totsukawa-mura(Nara Prefecture)

Kinki Regional
Development Bureau

Yobuko Bridge

Karatsu City(Saga Prefecture)

Kyushu Regional
Development Bureau

View of Diagnosis of Sarukai Bridge

Details * NILIM HP (Press conference on October 22, 2015)

http://www.nilim.go.jp/lab/bcg/kisya/journal/kisya20151022.pdf
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■ Development of barrier free technologies for emergencies in the aging society
Housing Department, Housing Production Division
Barrier free environments have been extensively provided
in collective dwellings, but with many problems related to theresponse to fire or other disasters still unsolved, the development of
new technologies is eagerly awaited.
Conventional evacuation methods were not planned hypothesizing
the many elderly and disabled people who will be part of the coming
aged society.
NILIM has beendeveloping evaluation technologies for disasterevacuation support technologies for elderly and disabled people
living in collective dwellings since 2015 in order to develop new
evacuation support technologies and methods of evaluating theperformance of these new technologies. The photos show testing of
conventional evacuation equipment and of a prototype of evacuationequipment now being developed. With outside experts participatingin the committee, it studies research guidelines while observing
actual equipment. We are considering starting the development ofequipment also accessible to wheelchair users next year.
In order to conduct the development while considering theanatomical characteristics of people who will use it, it is importantthat it be carried out cooperatively with people actually concerned
through testing using test subjects conducted to evaluate operability
and safety. When the equipment research period (3 years) has
concluded, as the achievements of the research, proposals for new
evacuation support technologies and technology standards to bereflected in building construction related laws will be summarized
in guidelines.
And the results will immediately be announced through research
reports of the NILIM and in academic association conference
abstracts as interim reports, and at the same time, we will strive toinform the general public of the evacuation support equipment now
being developed by holding open houses at the test facility.

Photo 1: Conventional evacuationequipment (Bridge type)Photo 2: Prototype developed(Lift type)■ Results of research on an international logistics model for Central Asia receive best paper award

from the East Asia Society for Transportation Studies (EASTS)

Administrative Coordination Department, International Coordination Division
At the 11th EASTS Conference held in Cebu in the Philippines
in September 2015, the Best Paper Award for Best Application inPractices was given to a paper concerning research on a modelof international logistics in Central Asia, which was submitted
jointly by Dr. Shibasaki, Doctor of Engineering and Head of theInternational Coordination Division of NILIM and researchers ofthe University of Tokyo.
The paper that received the award was titled, “Impact Assessment
Model of International Transportation Infrastructure Development:
Focusing on Trade and Freight Traffic in Central Asia. As part of“Multi-mode International Logistics Simulation Model and Policy
Analysis between the Continents of Asia and Europe (research period
2013-2016), a research theme subsidized as Grants-in-aid for
Scientific Research and represented by Director Shibasaki, the paper
was submitted as the results of joint research with Professor Hironori
KATO Department of Civil Engineering of the University of Tokyoand with Tanabe Satoshi, a student of the same department.
The paper was selected in recognition of its superior applicability
to other work in particular from among approximately 370 papers
that were submitted to the EASTS Conference.
This paper applied an intermodal international logistics modelthat Dr. Shibasaki constructed for South-East Asia to five countries
including Uzbekistan and Kazakhstan that comprise Central Asia. By
reproducing the state of the sharing of transportation by railways andby trucks and of traffic volume at border crossing points, it simulated
the impact of constructing infrastructure and simplifying bordercrossing procedures on the international cargo flow.
The research group led by Dr. Shibasaki is continuing research
to build similar models in cooperation with the Ministry of Land,
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Infrastructure, Transport and Tourism(MLIT), the JapanInternational
Cooperation
Agency(JICA), and international organizations
such as the Asia
Development Bank(ADB), The objectof the construction ofthe model is expanding beyond the Central Asian region, to Photo: EASTS Conference Awards Presentation(from left, Chairman Feng (former),include South Asia,
Professor Kato, Mr. Tanabe, Dr. Shibasaki)
which includes Pakistan that is also attracting attention as a gateway port for marinetransport cargoes to and from Central Asia, and even the entire continent of Eurasia including China and Russia. And the application ofthe model is now spreading to other regions including Oceania.
The East Asian Society of Transportation Studies was established in
1994 at the insistence of Professor Hideo Nakamura of the Universityof Tokyo. Nineteen countries from Northeast Asia, South-east Asia,and Oceania are now member countries (about 1,600 members).
EASTS meets once every two years, with about 500 papers presented
at each conference.

Details * EASTS HP (Outline of the results of the 2015 conference)
http://www.easts.info/events/conference/easts2015/conf_rep_2015.
html#022

■ Civil Engineering Day ~Research Facility Open House and Bridge Contest Awards~
Planning and Research Administrative Department, Planning Division
NILIM held an open house at test facilities in the institute incooperation with the Public Works Research Institute and a Bridge
Contest as part of Civil Engineering Day Events.
On November 14, 2015, NILIM held a Civil Engineering Day
event jointly with the Public Works Research Institute. This event isheld annually in connection with Civil Engineering Day (November18), in order to introduce the general public to the research institutesand to familiarize them with public works projects.
Unfortunately it was a rainy day, but 947 visitors took part,reminding us of growing interest in Civil Engineering.
At test facilities open to the public, they could observe and hear
an explanation of waves produced by the wave-maker at varying
heights and intervals and observe a demonstration of ETC2.0 while
traveling on the 6.2km long test course. Children who attended
responded enthusiastically.
On the day of the event, the Bridge Contest awards ceremony
was presented. To enable children, who will guide the future ofJapan, to experience the importance of Civil Engineering and thejoy of creation, they were invited to submit models of bridges madeof cardboard which were screened before Civil Engineering Day.
This year, 388 grade 5 elementary school children from 30
elementary schools in Tsukuba City entered 349 creations marked
by rich creativity and imagination. These were screened from avariety of perspectives to award those selected as best entry andother prizes.
Such events are counted on to provide opportunities to deepen
interest in civil engineering among the many children who see theexperiments and experience the creation of bridge models. We will
make special efforts to improve these events that will introduce
them to the benefits of civil engineering in the future.

Demonstration using the wave-maker

Driving on the test course

Photos: View of test facility open house

Photo: Bridge Contest Awards Ceremony

Details * NILIM HP (Event report)

http://www.nilim.go.jp/lab/bbg/event/dobokunohi/doboku2015.pdf■ Report on NILIM Lecture Meeting 2015
Planning and Research Administration Department, Planning Division
The NILIM Lecture Meeting 2015 was held in Nissho Hall inToranomon, Minato-ku, Tokyo on December 3 (Thurs.), 2015.
The NILIM lecture meetings are held annually in order to informthe general public of the activities of the NILIM by presenting
all-encompassing presentations and reports on recent researchachievements of the NILIM and on research themes and trends.
This yearʼs lecture meeting attracted 537 guests.
A special lecture, “National Land Technology Policies thatInduce Social and Economic innovations”, was given by Professor
Ishida Haruo (Photo) of the Faculty of Engineering, Informationand Systems Division of Policy and Planning Sciences, Universityof Tsukuba. Professor Ishida clearly explained his view that socialand economic systems will be transformed by innovation byincorporating his own rich experience innovating in transportation
systems.
In other lectures, representatives of various departments andcenters of the NILIM introduced research achievements and survey
and research trends that meet recent needs in various fields.
At this lecture meeting, three sessions dealing with topics ofgreat concern for society: [1] disaster prevention and mitigation,[2] maintenance, and [3] innovation (Technology required forregional creation, more intelligent use, and improved productivity)
were added. Presenters talked about the most advanced researchachievements that will be applied immediately in the field andprospects for the future. Documents presented that day are available
at the following URL.

Photo: Professor Ishida Haruo

Details * NILIM Lecture meeting（NILIM HP）

http://www.nilim.go.jp/lab/bbg/kouenkai/kouenkai2015/kouenkai2015.htm

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● Publication (research achievements) < December, 2015-February, 2016 >Download from here * http://www.nilim.go.jp/lab/bcg/siryou/index.htm

TECHNICAL NOTE of NILIM
No.
847タイトル

Many Problems and Correspondence Policy about a Standard of Smoke
Exhaust Assembly

担当部課室名Fire Standards Division

858 Annual Report of Road-related Research in FY 2014

Road Traffic Department,Road Structures
Department,Research Center for Landand Construction Management

B-DASH Project No.9 Guideline for introducing an innovative
859 energy-conversion system through total optimization of sludge
dehydration,combustion and electricity generation

Wastewater and Sludge Management
Division

860

B-DASH Project No.10 Guideline for introducing an electricity generation
system from sewage biomass source

861 Research and evaluation of Non-structural measures against tsunamis
862

Wastewater and Sludge Management
Division
Coastal, Marine and Disaster Prevention
Department

Production Capacity Change in Industrial Sectors of Hachinohe City due to the Coastal, Marine and Disaster Prevention
2011 Tohoku Tsunami
Department

863 Seismic Risk Management Tentative Guidelines on Airport Safety Assessment

Airport Department

864

Fundamental Analysis on the Characteristics of Berthing Velocity of Ships For
the Design of Port Facilities

Port Facilities Division

865

Technical study on data interchange and electronic providing systemdevelopment of port logistics information between Japan, China and Korea

Administrative Coordination
Department,Port and Harbor
Department

866

Study on dynamic soil-building structure interaction based on strong motion
observation

Structural Standards Division

867 Reference to Fire Prevention Measures for Bridges Works

Bridge and Structures Division

869 Report of the 1st Evaluation Committee of NILIM in FY 2015

Research Administration and Evaluation
Division

B-DASH Project No.8
870 Guideline for introducing a technology for sewage sludge solid fuelization
using hydrothermal processing and high temperature digestion with carrier

Wastewater and Sludge ManagementDivision

Report of the joint research on collaborative service among government,
871 industry and academia based on the common platform ITS Spot. Working
Group 1: Heavy vehicle management

Intelligent Transport Systems Division

Report of the joint research on collaborative service among government,
872 industry and academia based on the common platform of ITS Spot
Working Group 2: Logistics Support

Intelligent Transport Systems Division

Report of the joint research on collaborative service among government,
873 industry and academia based on the common platform ITS Spot. Working
Group 3: Weight Estimation of Vehicle

Intelligent Transport Systems Division● We provide you with research information.
・ 2015 Annual Report of NILIM

This web site introduces NILIM activities throughout the year, including research activities and achievements,
future initiatives, etc.
Go to this web site: * http://www.nilim.go.jp/english/annual/annual2015/ar2015e.html

National Institute for Land and Infrastructure Management
Ministry of Land, Infrastructure, Transport and Tourism
Asahi 1, Tsukuba, Ibaraki, 305-0804, Japan(Tachihara) Tachihara 1, Tsukuba, Ibaraki, 305-0802, Japan(Yokosuka) Nagase 3-1-1, Yokosuka, Kanagawa, 239-0826, Japan
Winter 2016
TEL:+81-29-864-2754 FAX:+81-29-864-4322
http://www.nilim.go.jp/english/eindex.htm
Edited and Published by National Institute for Land and Infrastructure ManagementNo.55

国 総 研 ニ ューズ レ ター

NILIM News Letter