The record works across the sea of ​​the world

The ancient world marked with 7 wondrous wonders built by humans around the Mediterranean coast. But the footsteps of the present man did not stop at the beach. Great works across the sea are probably one of the most brilliant achievements of the modern world.

Here are some of the world's record-breaking works.

Akashi Kaikyo suspension bridge (Japan)

Also known as the Pearl Bridge, the Akashi Kaikyo Bridge crossing the Akashi Strait connects Awaji Island - Japan's sixth largest island - with Kobe City of Hoshu Island, one of the most important industrial centers. country.

With a total length of 1,991 meters, Akashi Kaikyo is longer than the StoreBaelt bridge in Denmark (built in 1998) 366 meters, more than Humber Bridge in the UK (1981) 580 meters, bridge at Verrazano-Narrows in New York, USA (1964) 692 meters and the Golden Gate Bridge in San Francisco (1937) 710 meters - before that were the " record families " recognized by Guinness World.

To complete the project beyond the Akashi Strait, more than 100 construction contractors have worked hard for 10 years, starting in 1988 with a total budget of up to 500 billion yen (US $ 3.6 billion - calculated at the time points in 1998).

The giant pillars of Kaiyko Akashi suspension bridge are over 400 meters high, built of solid concrete to withstand big waves, strong winds, even earthquakes. The total weight of cables is over 50,000 tons; Each wire has a diameter of nearly 2 meters, including 290 6-sided fibers, each of which is constructed by 127 smaller steel wires. The total length of each cable is 320 km, 7.5 times the diameter of the earth.

Kaiyko Akashi suspension bridge is one of the outstanding efforts of the Japanese government in the strategy of socio-economic development, opening roads connecting the two major islands of the country.

(Photo: no.sapo.pt)

Trans-ocean bridge Hangzhou Bay (China)

With a total length of 36 km, the bridge crosses the Hangzhou Bay located in the Yangtze River Delta - which is considered one of the most complicated areas of environmental change in the world (often affected of high tide, high storm and infertile soil.

The main part of the bridge is designed as a cable-stayed bridge, with 6 main lanes for motor vehicles. It is estimated that in the first year of operation, the demand will be more than 45,000 cars per day.

Dubbed the largest trans-oceanic structure of all time - compared to completed or under construction bridges, the Hangzhou Bay Bridge rises above all world-famous bridges such as the Chesapeake Bay Bridge in America. or Baharian bridge in Saudi Arabia. Thanks to this new traffic, the journey between Ningbo and Shanghai cities shortened 120 km. Started construction in 2003 and is expected to be completed in 2008, the bridge will have an important socio-economic impact on the Yangtze River Delta (China).

(Photo: zhejiang-china)

Lake Pontchartrain Expressway Bridge (USA)

It is a bridge across Lake Pontchartrain (Louisiana state, USA), a total length of 38 km connecting the cities of Metairie and St. Tammany Parish. The first project connecting the two banks of South - North was built for the first time in 1956 including 2 2-way lanes. By 1969, two more lanes were added, dividing the two bridges into two separate one-way routes. On average, there are more than 30,000 vehicles per day joining traffic on the bridge.

(Photo: Quickseek.com)

Tunnel through the Manche Sea (English - French)

With a length of 50.5 km under the English Channel, the Manche Sea tunnel connects Folkestone, Kent (England) and Coquelles town near Calais in northern France. Opened in 1994, it is considered the second longest train tunnel in the world (behind the Seikan Tunnel in Japan) and is the longest tunnel crossing the sea.

(Photo: Paul-andreu.com)

Route of cable car over Vinpearl Sea (Vietnam)

With a length of 3311m located on 9 columns (the highest 54.65m, the lowest is 7.96m), the total weight of the entire cable line is up to 7,000 tons, with the equipment of stations, cabins . imported from France accounting for ¼ of the total value of VND 200 billion of the project.

According to the design capacity, with 65 cabins, in an hour, this cable car can transport 1,500 passengers / 1 way at a speed of 36km / h, surpassing the sea route between Nha Trang and Hon Tre Island. 10 minutes that normally if you take the ferry for 25 minutes.

Standing on reinforced concrete pillars with a length of up to 96m, this cable car route also ensures safe operation for visitors in extreme weather conditions such as level 6 earthquakes (earthquake magnitude assessment system in Vietnam), storms from level 7 or below.

Thuy Van (sum up)