Tokyo Flood Prevention | Insane underground tunnel system in Japan!
Fifty metres under Tokyo lies a subterranean world — 6.4 kilometres of tunnels, water tanks and massive pillars constructed to withstand 200 tonnes of water per second. This engineering marvel built to protect the ever-present threat of Tokyo flooding.
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The Giant Underground Tunnels Protecting Tokyo From Floods
If you believe the hype, then the Metropolitan Area Underground Discharge Channel stops Tokyo flooding. It doesn't. But it is one colossal part of a huge network of flood defences that protect a city that would otherwise be... well, very wet.
MORE ABOUT THE DISCHARGE CHANNEL:
The Discharge Channel's site (in Japanese):
Advice for English-speaking visitors:
REFERENCES:
Below sea level and aging levees: [PDF, parts translated in ]
All that protects the two and a half million people:
Discharge channel stats: [PDF]
THANKS TO:
Local fixer: Yamada Masato
Post translator: Dominic Jacobs
Edited by Michelle Martin (@mrsmmartin)
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Metropolitan Area Outer Underground Discharge Channel
The city famous for Crayon Shin-Chan Kasukabe, has a huge underground shrine. The purpose of this underground shrine is used as a tank for controlling the water level of the river, using Japan's advanced techology by crystallization.
If you take a look at this magnificent underground shrine (Which doubles as an aquarium), you will be amazed!
People who are not familiar with the geography of the Saitama Prefecture, or people who not good with complex explainations, such as waterproofing technology, rest assured. As a professional in charge will explain it simply before visiting.
You will not be dissapointed in visiing this wonderful place.
Reservation is necessary to observe this underground temple (Aquarium).
For more details, visit us at:
#Saitama Travel #Saitama Things To Do #Short trip from Tokyo
Tokyo Metropolitan Area Outer Underground Discharge Channel
The Metropolitan Area Outer Underground Discharge Channel (Japanese: 首都圏外郭放水路, romanized: Shotokan gaikaku hōsuiro), is an underground water infrastructure project in Kasukabe, Saitama, Japan. It is the world's largest underground flood water diversion facility
Tokyo's Flood Tunnel
Tokyo, a city built on the coast, intertwined with water has put in place a flood system you’ll have to see to believe. On this episode we bring you Tokyo’s flood tunnels.
Global oceanic city Tokyo has so much water access including cancels and waterways within the city that a grand plan was put in place to protect the city from flooding. There are 8 rivers that run through Tokyo all capable of flooding during a typhoon.
In the 1950s - 1960s typhoons flooded and destroyed the low lying old downtown of Tokyo.
Based on Tokyo’s geographical location disaster in many forms can strike at any moment. Over 38 sq miles or 100 sq km of the city is below sea level which was made worse by rapid construction in the 1960s and 70s. Water was extracted causing the are around Koto-ku to sink further down 2.2 feet or 70 cm.
Tokyo’s annual rainfall of 60 inches or 1530 mm hasn’t changed that much over the years but the pattern in which the rain falls has. In recent decades that rain pours heavy and hard putting people’s homes at risk of flooding.
Over 80 years ago an artificial waterway was dug, walled with concrete and armed with gates to control the rate of flow away from east Tokyo. Overtime more gates were added but eventually Tokyo devised an idea to build an enormous structure underground to soak up typhoon flood water at outrageous volumes. This came after the 1991 catastrophic flood that submerged 30,000 homes and left dozens dead. 3 billion dollars and 13 years later the Metropolitan Outer Area Underground Discharge Channel was completed. 5 stories tall this massive chamber is so long it’s length is greater than the height of this building, Fountain Place in Dallas. Outfit with dozens of pillars, each one weighs in over 500 tons. As the rivers start to fill up water is diverted into this surge tank which will then be redirected to the man made river that exits the city. Being the largest of its kind in the world, this surge tank sees water fill up inside 7 to 12 times a year. How this is possible is a 3.7 mile or 6 km network of huge pipes all positioned to take in water when the flow is too high that carries it through the pipes back to the surge tank.
4 Oversized turbines converted from aircraft engines can pump 13,000 cubic gallons or 50 cubic meters of water per second each. All this flood water is pumped into 1 of 5 mega cylinders that spans 20 stories deep into the ground. These tubes are so big the space shuttle could fit inside. Designed to absorb the anticipated water volume of a once in 200 year flood, these cylinders angle the water so that is spins around the outside of the tubes to avoid a crashing impact at the bottom. As water fills up it will be pushed over to the surge tank than out to the main exiting river. All the soil pulled from where the chamber and tanks are place was used to build up and strengthen the riverside dycks.
Since its implementation the flood tunnels and chamber have reduced flood damage in Tokyo by 90% which has led to other countries to come up with their own plans to build similar tunnels in their major cities.
Are you impressed with modern feats of engineering like Tokyo’s flood tunnels, let us know in the comments down below.
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Invitation from Underground | Metropolitan Area Outer Underground Discharge Channel
Metropolitan Area Outer Underground Discharge Channel
Address: 720 Kamikanasaki, Kasukabe, Saitama
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首都圏外郭放水路【Metropolitan Area Outer Underground Discharge Channel】
The Metropolitan Area Outer Underground Discharge Channel, also known as the G-Cans Project, is an underground water infrastructure project in Kasukabe, Saitama, Japan built for preventing overflow of the city's major waterways and rivers during rain and typhoon seasons.
Work on the project started in 1992; it consists of five concrete containment silos with heights of 65 m and diameters of 32 m, connected by 6.4 km of tunnels, 50 m beneath the surface, as well as a large water tank with a height of 25.4 m, with a length of 177 m, with a width of 78 m, and with 59 massive pillars connected to a number of 10 MW pumps that can pump up to 200 tons of water into the Edogawa River per second.
Central control room
The G-Cans project is also a tourist attraction, and can be visited for free; however, as the tours are conducted in Japanese, a Japanese speaker must be present in the group to act as a translator for non-Japanese speakers.
Flood Control from Underground
‘Underground shrine’ guards against flooding - The Japan News
KASUKABE, Saitama — A flood prevention facility in Kasukabe, Saitama Prefecture, dubbed the “Disaster Prevention Underground Shrine” has been open to the public since Aug. 1, in a bid to utilize it as a tourism resource.
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Amazing Japanese flood control underground system
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How Japan Keeps Millions of Residents Safe From Floods
The Metropolitan Area Outer Underground Discharge Channel is the largest underground water facility in the world. Built to protect residents from constant flooding, the system drains rainwater to a massive tunnel underground that then redirects the flow to a nearby river that can handle the influx of water. Thanks to the ingenuity of the drainage system, Japan’s residents are kept high and dry.
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Japan Metropolitan Area Outer Underground Discharge Channel
“Underground Temple” Safeguards Greater Tokyo from Floods
The Metropolitan Area Outer Underground Discharge Channel was completed 10 years ago and has helped reduced flood damage around the nation’s capital on more than 100 occasions. The world-class underground flood control system not only drains rainwater from low-lying areas but has a pressure adjusting tank that, with its huge columns, has been likened to a giant underground temple.
埼玉県 春日部市 首都圏外郭放水路の見学 Metropolitan Area Outer Underground Discharge Channel
世界最大級の地下放水路の調圧水槽を見てきました。
場所は、埼玉県春日部市の国道１６号下にあり、深度５０メートルの地下放水路です。
柱の高さは１７７メートル、ガンダムの身長とほぼ同じです。
でけぇ。
住所は、埼玉県春日部市上金崎７２０です。
撮影日 2009年09月29日
You've seen like pressure water tank underground spillway of the world's largest. Located on the National Highway No. 16 under the Saitama prefecture Kasukabe, location is underground spillway of 50 m depth. The height of the pillar is about the same height and 177 meters, the Gundam. Deke~e.
你见过像压力水柜世界上最大的地下溢洪道。位于埼玉县春日部市国道16号下，位置是地下溢洪道50米的深度。柱子的高度大约是相同的高度和177米，机动战士。德科〜E。
आप दुनिया के सबसे बड़े का दबाव पानी की टंकी भूमिगत स्पिलवे की तरह देखा है. Saitama प्रान्त Kasukabe के अंतर्गत राष्ट्रीय राजमार्ग संख्या 16 पर स्थित है, स्थान 50 मीटर गहराई से भूमिगत स्पिलवे है. स्तंभ की ऊंचाई एक ही ऊंचाई और 177 मीटर की दूरी पर, Gundam के बारे में है. देके ~ ई
Usted ha visto como el agua la presión del tanque vertedero subterráneo de las mayores del mundo. Situado en la carretera nacional N º 16 bajo la prefectura de Saitama Kasukabe, la ubicación es aliviadero subterráneo de 50 metros de profundidad. La altura de la columna es aproximadamente la misma altura y 177 metros, el Gundam. Deke ~ e.
Вы видели похожего танка воды давления подземных водосброса крупнейшей в мире. Расположенный на Национальном шоссе нет 16 под префектуре Сайтама Kasukabe, расположение подземных водосброса 50 м глубины.Высота столба примерно такой же высоты и 177 метров, Gundam. Дик ~ E.
Vous avez vu comme la pression du réservoir d'eau souterrain de l'évacuateur de crues plus grand du monde. Situé sur la route nationale n ° 16 en vertu de la préfecture de Saitama Kasukabe, l'emplacement est déversoir souterrain de 50 m de profondeur. La hauteur de la colonne est d'environ la même hauteur et 177 mètres, le Gundam. Deke ~ e.
كنت قد رأيت مثل خزان مياه ضغط مفيض تحت الارض من الأكبر في العالم. تقع على الطريق السريع الوطنى رقم 16 تحت سايتاما كاسوكابى، والموقع هو مفيض تحت الارض من عمق 50 م. ارتفاع عمود هو تقريبا نفس الطول و 177 متر، وجاندام. DEKE ~ ه.
Você já viu como tanque de água pressão vertedouro subterrâneo do maior do mundo. Localizado na estrada nacional n º 16 sob a prefeitura de Saitama Kasukabe, a localização é vertedouro subterrâneo de 50 m de profundidade. A altura do pilar é praticamente a mesma altura e 177 metros, o Gundam. Deke ~ e.
Anda telah melihat seperti air tekanan tangki limpah bawah tanah terbesar di dunia. Terletak di No 16 Lebuh Raya Kebangsaan di bawah wilayah Saitama Kasukabe, lokasi adalah limpah bawah tanah 50 m mendalam. Ketinggian tiang adalah kira-kira ketinggian yang sama dan 177 meter, Gundam. Deke ~ e.
আপনি বিশ্বের বৃহত্তম চাপ পানির ট্যাংক ভূগর্ভস্থ spillway মত দেখা করেছি. Saitama প্রিফেকচার Kasukabe অধীনে ন্যাশনাল হাইওয়ে নং 16 তে অবস্থিত, অবস্থান 50 মিটার গভীরতা ভূগর্ভস্থ spillway হয়. থাম উচ্চতা একই উচ্চতা এবং 177 মিটার, Gundam সম্পর্কে. Deke ~ ই.
El asombroso templo subterráneo en Tokio que evita las inundaciones por lluvias.
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Canal Metropolitano de Descarga Subterránea del Área Metropolitana (外 圏 外 郭 放水 路 shutoken gaikaku hssuiro?), También conocido como Proyecto G-Cans, es una infraestructura hidráulica subterránea en Kasukabe, prefectura de Saitama, en Japón. Credenciales para prevenir inundaciones en caso de subidas del nivel de agua por tsunamis, tifones, etc, es la mayor infraestructura del mundo de este tipo. Los trabajos para su construcción comienzan en 1992 y se prolongan hasta 2009. Consiste en cinco silos de contención con una altura de 65 metros y un diámetro de 32m. Los mismos están a 6,4 km de túnelles a 50 metros bajo la superficie, así como un tanque de agua con una altura de 25,4 metros, 78 metros de longitud y 177 metros de longitud con 59 pilares conectados con bombas de una potencia de 10 MW que pueden bombear unas 200 Tm de agua hacia el río Edogawa cada segundo. Además, ha sido publicado en películas, anuncios y programas de televisión para la creación de escenas de terror y ciencia ficción.
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#temploenjapon, #turismoenjapon, #argentinoenjapon,
GCANS - Drainage Cavern - Tokyo, Japan
Checked out the massive underground drainage cavern north of Tokyo that prevents flooding in the Kanto Plain.
売工場 埼玉県春日部市 工場・倉庫専門のビーズ
埼玉県春日部市南栄町の売工場のご紹介。
春日部市の44.59坪の2階建売工場です。土地面積は99.98坪です。駐車スペースあり。浴室付き。南栄町工業団地内に立地。国道16号至近。八木崎駅徒歩15分。 埼玉県 春日部市の売工場は工場・倉庫専門のビーズにお任せを！！
埼玉県春日部市 首都圏外郭放水路 Metropolitan Area Outer Underground Discharge Channel
大雨などによる周辺河川が増水した際、洪水を防ぐため流量容量を超えた水を洪水調節池として機能して、江戸川に排水する施設です。
調圧水槽は、水の勢いを調整する役割があり、一部見学できます。超カッコイイ。
夏は、地上との温度差から霧がでており、なんだか幻想的でした。
住所は、埼玉県春日部市上金崎７２０です。
撮影日 ２０１３年６月８日
撮影機種 コンパクトデジタルカメラ Ｃａｎｏｎ ＩＸＹ610Ｆ
When the peripheral rivers due to heavy rain swollen, it is a facility that functions as a flood control reservoir of water that exceeds the flow capacity to prevent flooding and drainage in Edogawa.
当外围的河流因大雨肿了，这是一个设施，防洪水库的水，超过的流量，以防止洪水和江户川区的排水功能。
भारी बारिश के कारण परिधीय नदियों सूज जाता है, यह एक सुविधा है कि Edogawa में बाढ़ और जल निकासी को रोकने के लिए प्रवाह क्षमता से अधिक है कि पानी की एक बाढ़ नियंत्रण जलाशय के रूप में कार्य करता है.
Cuando los ríos periféricos debido a las fuertes lluvias hinchados, es una instalación que funciona como un depósito de control de inundaciones de agua que supera la capacidad de caudal para evitar inundaciones y drenaje en Edogawa.
Когда периферийный рек из-за сильного дождя опухшим, представляет собой установку, которая функционирует как резервуар борьбы с наводнениями воды, которое превышает пропускную способность для предотвращения наводнений и дренажа в Edogawa.
Lorsque les rivières périphériques en raison de fortes pluies gonflés, c'est une installation qui fonctionne comme un réservoir de contrôle des inondations d'eau qui dépasse la capacité d'écoulement pour éviter les inondations et de drainage dans Edogawa.
عندما أنهار الطرفية بسبب الامطار الغزيرة متورمة، بل هو المنشأة التي يعمل بمثابة خزان للسيطرة على الفيضانات من المياه التي يفوق الطاقة الاستيعابية لمنع تدفق السيول وتصريف في ايدوغاوا.
Quando os rios periféricos, devido a forte chuva inchado, é um mecanismo que funciona como um reservatório de controle de inundações de água que excede a capacidade de fluxo para evitar inundações e drenagem em Edogawa.
Apabila sungai periferal akibat hujan lebat bengkak, ia adalah kemudahan yang berfungsi sebagai kawalan takungan banjir air yang melebihi kapasiti aliran untuk mencegah banjir dan perparitan di Edogawa.
ভারী বৃষ্টি কারণে পেরিফেরাল নদী ফুলে, এটা একটা সুবিধা যে Edogawa মধ্যে বন্যা এবং নিষ্কাশন প্রতিরোধ প্রবাহ ক্ষমতা অতিক্রম করে যে পানি বন্যা নিয়ন্ত্রণ ভাণ্ডার হিসেবে কাজ করে.
El Asombroso templo subterráneo en Tokio que evita las inundaciones por lluvias, Tsunamis, maremotos
Suscribete Haciendo Click Aquí::::
El Metropolitan Area Outer Underground Discharge Channel (首都圏外郭放水路 shutoken gaikaku hōsuiro?), también conocido como Proyecto G-Cans, es una infraestructura hidráulica subterránea en Kasukabe, prefectura de Saitama, en Japón.
Creada para prevenir inundaciones en caso de subidas del nivel de agua por tsunamis, tifones, etc, es la mayor infraestructura del mundo de este tipo.
Los trabajos para su construcción comienzan en 1992 y se prolongan hasta 2009. Consiste en cinco silos de contención con una altura de 65 metros y un diámetro de 32m conectados entre sí por 6,4 km de túneles a 50 metros bajo la superficie, así como un tanque de agua con una altura de 25,4 metros, 78 m de anchura y 177 m de longitud con 59 pilares conectados con bombas de una potencia de 10 MW que pueden bombear unas 200 Tm de agua hacia el río Edogawa cada segundo.
Además de una atracción turística gratuita, ha sido utilizada en películas, anuncios y programas de televisión para la creación de escenas de terror y ciencia ficción.
#temploenjapon, #turismoenjapon, #argentinoenjapon,
[drive japan]埼玉北部に抜けるルート 埼玉県道42号-抜け道 埼玉県松伏市-埼玉県春日部市 Part.4
[drive japan]埼玉北部に抜けるルート 埼玉県道42号 埼玉県松伏市-埼玉県春日部市 Part.4
有料道路(東北道)を使わずに、埼玉県三郷市から埼玉県北部(春日部市)に抜けるルートを走ってみました。
埼玉県道42号松伏市内を北に進み、そのまま真っ直ぐ進むと国道16号線に抜けられます(抜け道ですのでかなり狭いので走行注意です)。
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