2016. 11. 1

Japan Society of Civil Engineers
International Activities Center

IAC News No.49
A Report on JSCE Global Vision Seminar“Global Strategy for Construction Industry” Series No. 3
JSCE Global Vision Seminar Series No. 3 washeld on October the 3rd, hosted by theConstruction Management Committee and theInternational Activities Center (IAC). The
author of this report was transferred to theJapan Society of Civil Engineers (JSCE) andengaged in the planning of the Lecture as thesecretariat until the end of September, hence
writing this report. The Lecture was a huge
success, attended by 207 paid registrants.
The situation of panel discussion

The Global Vision Seminar was proposed aspart of the 100th anniversary of JSCE, and the first Seminar was held last February with the President of theFIDIC and the second one in April this year with the Vice President of AECOM Asia. The members of JSCE
hardly have an opportunity to listen to a talk directly by someone with an international reputation, and theSeminar offers such a rare opportunity with the help of JSCE.
This time, the Seminar focused on concession projects - they are widely implemented overseas but there are
only a few cases in Japan - and talks were presented by the guest experts to discuss what the role of a civilengineer is, and how to form a project, address risks and get involved in the project.
Mr. Kevin Tynes, the Chairman of Nippon Koei Latin America-Caribbean Co., Ltd., delivered a lecture with thetitle of “Concession Projects in Latin America” and talked about the mechanism of a concession project and theroles of those involved. Dr. Sang Hoon Kim, the former Vice President of Daewood Engineering &Construction, Co., Ltd. and the Director of Port Development Division, the Ministry of Oceans and Fisheries,
Korea, delivered a lecture with the title of “'Korean Activities and Requirements for EPC Contractor inConcession Projects”', and talked about the matters necessary for undertaking a concession project and riskmanagement. Mr. Kentaro Tsuboi, a Senior Legal Consultant of Freshfields Bruckhaus Deringer LLP, presented
a talk about risk distribution and management by using highway construction projects in the US as examples.
Following the lectures by the aforementioned guest speakers, Professor Kazumasa Ozawa from the Universityof Tokyo, Mr. Masaaki Amma, Managing Director of the Japan Bank for International Cooperation (JBIC), andMr. Setsuo Hirai, Senior Director of Overseas Projects Division, Ministry of Land, Infrastructure, Transport and1

Tourism (MLIT) were welcomed to sit on the discussion panel, chaired by Mr. Katsuji Fukumoto, Managing
Executive Offic
Officer
er of Obayashi Corporation, to discuss about what the Japanese construction industry should doto take part in concession projects.
【ReportedReported by Yoshihiro Katsuhama (TechnologyTechnology Headquarters
Headquarters, Nippon Koei Co., Ltd.)】
Ltd.

Pahang － Selangorangor Raw Water Transfer Tunnel－TheThe longest Raw Water Transfer Tunnel－Tunnel －This project was financed by Japan International Cooperation AAgencygency (JICA). We
constructed a water tunnel withwith a diameter of 5.3m, to convey water from PahangState to Kuala Lumpur and Selangor State through Titiwangsa Mountain Range towater 1.89 million m3 per day for daily lives and industrindustrial use.
The tunnel is the longest tunnel in South – East Asia
Asia. The maximum overburden oftunnel is 1,246m, which is the 8th biggest in the world. The tunnel of this kind israre inn the world. The geology of that area consists of granite whose maxim
compressive strength is over 200MPa.
The tunnel was divided into NATM sections (4 Sections, the total length:length 9.1km)
and TBM sections (3 Sections, the total length:length 34.6km). The construction period

Mr. Takayuki Matsumoto
Shimizu Corporation,orporation,
International
Division, General
Manager of Malaysia
Officewas 5 yearsyears, and high--speed tunneling was required in both NATM section(130m/month) and TBM section (450m/month).
During the construction of the NATM section
section, we
mobilized the most advan
advanced
ced excavation equipment to fit tothe tunnel which diameter was 5.2m,5.2m and achieved themaximum
ximum monthly excavation record
recor of 283m
283m, which
exceeded the one achieved in Japan.
During the construction of TBM section,section we mobilized atunnel boring machine which had strong thrust force
forces (10%more the regular machine) to excavate hard rock. In poor
geological section
sections, the early installation of tunnel support
system directly behind the cutterhead
head was proved aseffective.

Fig.1 Tunnel Location (Pahang State and Selangor
State, Malaysia)In the TBM--1 section, we encountered the heavy water ingress that reached to 24.6m3/min in maximum,
maximum thatwas more than we anticipatedanticipated.. We reinforced dewatering systemsystems and successfully avoided the flooding of thetunnel boring machine. In the TBM-2
TBM section, we encountered hot rock mass whose temperature was 50
degrees
egrees Celsius
Celsius, and length was approximately 5km. We installed additional ventilation systemsystems and chillers,chillers
and then completed the excavation.

2We presented our experience of long distance tunneling at the World Tunnel Congress, Japan Society of CivilEngineers, and the Institute of Engineers in Malaysia. Our achievement was recognized with the JSCE
Outstanding Civil Engineering Achievement Award and the Merit Award of Engineering Advancement
Association of Japan for contribution to the further development of tunnel construction techniques.

Fig.2 Section of Raw Water Transfer Tunnel

Fig.4 General View of TBM section

Fig.3 Tunnel Boring Machine (TBM)

JSCE Annual Meeting International Program forYoung Engineers and International Students
The 18th International Summer Symposium (The 18th ISS), International Workshop for Young Civil Engineers,
and a technical tour were held as part of the JSCE Annual Meeting International Program on Tohoku University
Kawauchi-Kita Campus and Sendai International Center from 7th to 8th September. These events gave
international students and young engineers a good opportunity of cross-border communication.
The 18th ISS was held in the mornings of 7th and 8th. The ISS has been held in the JSCE Annual Meeting since2008. The participants of JSCE Study Tour Grant program supported by the JSCE International ScientificExchange Fund also attend the ISS. A total of 60 participants made presentations on their researches in 8sessions this year. They engaged actively in discussions and exchanged ideas and views with each other.
The Workshop was held in the afternoon of 8th. The topic of the workshop was "The Miracle of Kamaishi ＾The Solution that Achieved the Miracle". About 20 participants studied about the approaches and projects taken3

in order to reduce and mitigate disaster risks andimpact.

Many

ideas

about

futuredisastercountermeasures were proposed and discussed actively.
Mutual understanding was enhanced among theparticipants as a result.
As the last event in the Int’l Program, a technical tour
was carried out for the international students in theafternoon of the 2nd day. Participants visited Sendai
International Airport that has been reconstructed after
the Great East Japan Earthquake, Tohoku University
International Research Institute of Disaster Science

Participants in JSCE Workshop for Young Engineers(IRIDeS), Tsunami Tower Shelter, and Millennium
Hope Hills. The participants learned and experienced natural disasters and disaster prevention and mitigation
measures at first-hand in those two days.
【Reported by Masato Saito (Saitama University), IAC International Student Group Leader】

Updates◆The summary of feature articles in the November 2016 issue of the JSCE Magazine is available on the JSCEwebsite.
http://www.jsce-int.org/pub/magazine◆Five projects introduced in the booklet “TRANSFER OF CIVIL ENGINEERING TECHNOLOGY INSERVICE” issued at the time of the 100th year anniversary of JSCE can be viewed on the JSCE Website.
http://www.jsce.or.jp/e/archive◆Digest version of “Infrastructure Health Report” (Road Sector Trial Version, May 2016) can be downloaded
from the following website.
http://www.jsce-int.org/node/487◆Journal of JSCE
The Journal of JSCE is the collection of research papers which can be viewed on the JSCE website.
https://www.jstage.jst.go.jp/browse/journalofjsce◆Disaster Fact Sheet
http://committees.jsce.or.jp/disaster/◆IAC Students and Alumni Network
http://www.jsce-int.org/IAC_network§ IAC News Subscription §The IAC News is one of the communication tools to share information and ideas with the members. We would like to invite
you, your friends and colleagues to join the communication and to subscribe the IAC News. Please register online:(http://www.jsce-int.org/node/150). We look forward to meeting you.
§ IAC Facebook §Recent activity of International Activities Center is introduced on this Facebook. By all means, please see this home page.
(https://www.facebook.com/JSCE.en)
Comments and Questions
Please send us your feedback and comments to help us improve the IAC news. We look forward to hearing from you.
JSCE IAC: iac-news@jsce.or.jp

4