Friday, March 8, 2019

Zaungtuダムでの水位計設置工事に同行しました

B4の西原です.
いまは卒業論文の提出も終わり,修士課程での研究方針をぼんやりと考えているところです.
さて,2月下旬にミャンマーでの水位計の設置作業に同行してきたので,そのときの様子を写真を交えながら紹介し,自分の感想を記したいと思います.


今回のミッションはバゴー川の上流部に位置するZaungtuダムに水位計を設置することであった.Zaungtuダムはバゴー市街地から直線距離で60㎞離れた場所にあるのだが,ダムにつながる道路は半分以上が未舗装であり片道3時間半を要した.聞くところによると1年前は6時間かかったこともあるそうで,舗装路が随時延長されているため所要時間は短くなってきているのだが,それでも体が時々浮き上がるような悪路が残っており,途上国の山中に水位計を設置する大変さおよび道路インフラの重要性について身をもって知ることができた.
ヤンゴンに戻ってからは,弊研の研究員であるRalphさんとSeemantaさんがYTUの学生に水位計や気象計の扱い方についてレクチャーを行い,私も同席した.そこでRalphさんが何度も振り返り確認しながらレクチャーを進めている光景を目にして,専門技術および観測の重要性を教える難しさを実感することができた.
YTUの学生へのレクチャーの様子

また,バゴー川の現状の観測網および体制についてRalphさんがミャンマーの様々な機関の職員に説明を行う会議にも参加した.今回Zaungtuダムに水位計が設置されたことで一応の観測網が完成してリアルタイムの予測に大きく近づいたが,これを実用に活かしていくにはミャンマー側からの予算を振り分け等の協力が必要不可欠であり,観測の重要性や現状の説明で会議は長時間を要した.また会議の後,川崎先生からミャンマーの政府機関がひどい縦割り行政であることを聞き,日本側と各ステークホルダーとの協力だけでなく各ステークホルダー間の連携協力体制を作ることも求められることを知った.土木事業は他業種と比べて長いタイムスパンで目標を設定したり考えたりすることが多いが,ミャンマーでの現状を自分の目と耳で感じて,目標に向かって根気強くプロジェクトを進めていくことの果てしない大変さを改めて実感することができた.

Zaungtuダムの取水施設
さて私の卒論研究では,黒部川の発電ダム群の運用最適化をテーマにして,複雑な流路網を考慮した発電量の最大化の方法の提案を行った.この黒部川のプロジェクトにおいても上記のミャンマーでのプロジェクトと同じように,関西電力と弊研の協力だけでなくその他のステークホルダーどうしの協力体制などを鑑みながら,また長いスパンでみた電力事情の変化を考慮しながらプロジェクトを進めていくこと,またそのなかで自分にできる貢献は何かを考えながら研究を進めていくことが重要であると思いを新たにすることができた.

Wednesday, February 6, 2019

Water Level Transmitter Installation in Myanmar - Day 5 & 6 (2019/02/01~02/02)

Hello everyone, this is Liu Chang writing about the rest of our Myanmar field trip. Because most of our mission were accomplished in the beginning, so I decided to write the rest two days as one blog.

In day 5, we were planning to have some lectures with Sann Win Waung and BoBo Win about usage of windows server. However, because of the hard work of the first 4 days, Ralph-san got a stomach flu and had to rest at the hotel. So Sam-san became our teacher and taught us about how to make tasks in windows server and how to communicate with water lever and weather stations through ports.
Sam-san having a lecture in the server room

In the evening, I went to the supermarket and got some medicine and food for poor Ralph-san. Hope he will be better soon.

In day 6, Ralph-san is still feeling not so good, so me and Sam are invited by BoBo Win, Kyu Kyu, Aye Myat Thu and Aung Aye Aung from YTU to have a sightseeing in Yangon. With their car our transportation became convenient.

At first, we went to Sri Mangalar Kabaraye Cave Pagoda. This is a pagoda built inside a cave by six monks. There are many wall paintings inside the pagoda which telling stories about Buddha. But I couldn't understand the Burma language, so BoBo-san bought me a English book~ Thanks a lot for his kindness.
outside of pagoda

wall paintings of Buddha

outside the cave

inside the cave

snake dragon

tasty icecream in the pagoda

Then we went for a restaurant hold by a famous actor in Myanmar, the food there is sour and spicy. We ate with our bare hands which is a new experience for me.
lunch served above one big leaf

After lunch we went to Aung San Market for shopping. I bought some postcards there and our kind friends gave us a lot of presents like wallets and snacks. One amazing thing is that there are a lot of galleries here and as long as I can tell they are all quite fascinating.

At last we went for dinner in a palm wine restaurant. The palm wine has a special smell and tastes good in deed. We also had some palm fruits. The happy time is always faster than usual. Finally we have to say goodbye to eachother. Yangon really feels like my hometown (especially the spicy food). Hope we can meet soon in the future~
Aung San Market

palm wine

palm fruit


night view of Yangon



Water Level Transmitter Installation in Myanmar - Day 4 (20190131)

Hello everyone, this is Liu Chang writing about our after-work in Myanmar.

Today we invited officers from DWIR(Directorate of Water Resources and Improvement of River System)、JICA(Japan International Cooperation Agency)、DHPI(Department of Hydropower Implementation)、IWUMD(Irrigation and Water Utilization Management Department)、DDM(Department of Disaster Management)、DMH(Department of Meteorology and Hydrology)to report our recent progress and to discuss about next water level station.
meeting with stakeholders

After the formal meeting we also have some personal discussion about our equipment and space requirement.
discussion about space requirement
In the afternoon, we had some conversation with Prof. Khin Than Yu and Assoc. Prof. Win Win Zin from YTU about our plan for next year. Further cooperation is needed for the maintenance of current stations.
discussion with Assoc. Prof. Win Win Zin
discussion with Prof. Khin Than Yu
After that we charged the rest equipment in the beautiful sunshine~ I even fell asleep on the grass.

charging the battery

In the evening we could finally have meal outside. So we chose a Korean restaurant and went shopping in the supermarket. The shops are quite modern and it's hard to tell Myanmar from Shanghai or Tokyo in the supermarket.
dinner at a Korean restaurant

outside of the supermarket

Water Level Transmitter Installation in Myanmar - Day 3 (20190130)

Hello everyone. This is Liu Chang writing about our major installation day. To finish the installation as soon as possible we gathered together at 7:30. And we actually started the installation at 8:30.

At the beginning, me and Sam-san were responsible for the solar panel installation and it's quite an interesting work. The sunshine was also quite comfortable and this mission was finished just within one hour.
installation of solar panel

Secondly, we wanted to install the radar level transmitter. But this took much longer than we think and we need to ask the works' help to install it at the corner of the panel. It was quite a dangerous work and sadly we couldn't be any help of that. In the meanwhile we were preparing for the floating ball level transimitter in the small house.
installing rotator of floating ball transmitter

installing radar level transmitter

floating ball transmitter

We forgot our lunch while installing all these things, but finally, the equipment was tested and installed successfully on this site. Ralph-san has done most of the work, but we all learned something during this installation~

Ralph-san teaching about the transmitter

group photo after installation
overview of our water level transmitter

Because it was already late after installation. We have to eat lunch together with dinner in a nearby supermarket. I thought we had some Singapore food there, which was quite good~
chicken with spicy sauce

my dinner of fried chicken


Water Level Transmitter Installation in Myanmar - Day 2 (2019/01/29)

Hello, everyone. This is Liu Chang again writing about our water level installation trip in Yangon, Myanmar.

After a good sleep and delicious breadfast, in the morning went on the instllation site near Thanlyin Bridge.
breakfast at Super Yangon Hotel

As you can see from the picture below, our installation site is a small platform beside Thanlyin Bridge. The good new is that it's much bigger than we thought at first sight. All of us can stand on it and finish the installation together. The bad news is that it's a little bit dangerous to do this work considering it's about 10 m above the water surface.
installation platform

installation site from Google map

After discussing with construction contractors and students from YTU (thanks to Sann Win Maung and Chit BoBo Win), we decided to conduct the installation tomorrow morning. So the rest of our day will be to prepare the equipment for installation and testing its functions in SATREPS (Science and Technology Research Partnership for Sustainable Development) office at YTU (Yangon Techonological University).

At first, I thought it would be a simple task for I've got some experience about weather station. But it's quite a different thing to do it from beginning. I've been stuck at first level about how to install the solar panel. We have to consider about the latittude of installation spot, the direction of bridge and the influence of the bridge. To give the panel most sunshine even in rainy season, we decided to make the angel to be 20 degrees. However, it still took us a lot of time on fixing the steel framework. Of course, Ralph-san worked on the radar level transmitter of which he lacked experience. But everything worked out fine at last. So we are good to go further for tomorrow~
fixing the steel framework

testing the radar transmitter

Water Level Transmitter Installation in Myanmar - Day 1 (2019/01/28)

Hello, everyone. This is Liu Chang, M2 student of Kawasaki Group, writing about our water level transmitter installation trip in Yangon, Myanmar. Sorry I didn't update the blogs in time, so each blog will have a time tag on the right side.

The first day was quite a relaxing beginnig. Me, Sam-san and Ralph-san met at Narita Airport at around 10 am and our plane took off at 11 o'clock. However, because of our preparation before the trip, none of us actually got enough sleep the night before. So we tried to grap some rest on the flight.

When we landed, we headed directly to our hotel. The astonishing thing is that it's actually all of Japanese style, the manager of hotel can speak quite good Japanese. It even felt strange to have a Japanese restaurant nearby. Ignoring the hot weather in Yangon, there won't be much difference compared to Tokyo, at least of this hotel.

watermelon juice from the hotel

decoration of the wall

comfortable room with adequate space

first dinner in Yangon

Thai food of recommendation


PS: we had a lot of dishes here, but my favorite is the Thai food. Although it's spicy, I'll still keep my recommendation.

Monday, February 4, 2019

東大SDGs

東京大学の未来社会協創推進本部の登録プロジェクトとして、以下の二つのプロジェクトを掲載してもらいました。

途上国での災害と貧困の関連性分析
<https://www.u-tokyo.ac.jp/adm/fsi/ja/sdgs_project188.html>


デルタ危機と水害レジリエンス:自然環境、インフラ、社会経済構造の多次元分析モデルの探求
<https://www.u-tokyo.ac.jp/adm/fsi/ja/sdgs_project067_00022.html>


川崎