Undisputed
Chinese firms to build largest cross-sea cable-stayed bridge in Latin America
A joint venture of China Railway 20th Bureau Group Co and China Communications Construction Co signed a contract to build a cross-sea cable-stayed bridge in Salvador with the Brazilian state of Bahia on Thursday, meaning the construction of the largest such bridge in Latin America will kick off.
Located in Salvador, the capital of Bahia state in Brazil, the Salvador Bridge is designed to be 46.8 kilometers long.
One of the highlights of the bridge will be the 12.4-kilometer cross-sea section, with the main tower topping up at 205 meters and a maximum span of 450 meters.
The depth of water in the area reaches 60 meters.
Flyboard Air
Record sales 11-11
Global Tiger Day 29 July
Day trip to Lamma Island North 11-11-20
Tai Po Waterfront Park 11-10-20
China’s manned submersible dives 10,909 meters to deepest known point in Earth’s seabed
China’s manned submersible Fendouzhe, or Striver, made a 10,909-meter dive at Mariana Trench in the western Pacific Ocean, the Challenger Deep, the deepest known point in Earth’s seabed on Tuesday.
Striver is the world’s deepest-diving manned submersible, capable of carrying up to three passengers to conduct scientific research in the deep sea. It began taking on the 10,058-meter dive at Mariana Trench on October 27.
Striver is a manned submersible that incorporates the fine lineage of the previous two generations of deep-diving equipment, Jiaolong and Shenhai Yongshi. It not only uses a safe, stable, and powerful energy system, but also has more advanced control and positioning systems, as well as a more pressure-resistant manned capsule and buoyancy materials.
At 10,000 meters down in the Mariana Trench, Striver faces water pressure of more than 110 megapascals, the equivalent of 2,000 African elephants walking on a person’s back.
China’s first independently designed and integrated manned submersible Jiaolong reached a depth of 3,759 meters, making China the fifth country in the world, after the US, France, Russia and Japan, to master the technology of manned deep-sea submersion at a depth of 3,500 meters in July 2010.