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[SITUATION] · [ACTIVE]

2 clusters · 6 sources · 23 days · First seen 26 days ago · Last updated 4 days ago

Categories: TECHNOLOGY

China high‑speed rail expansion

Entities: Linghang shield tunnelling machine · Linghang · Shanghai · Chongming Island · Linghang tunnelling machine

Overview

In early July 2026, China completed construction of the world’s largest train station in Chongqing, underscoring its drive to expand domestic rail capacity. By the end of that month, the 15.4‑metre‑diameter Linghang shield tunnelling machine finished an 11.3 km underwater drive beneath the Yangtze River, setting a global record for the longest uninterrupted tunnelling by a shield machine of this size. The tunnel, part of the Chongtai Yangtze River Tunnel linking Shanghai’s Chongming Island with Taicang in Jiangsu, will accommodate 350 km/h trains, cutting the island‑to‑Shanghai travel time to about 17 minutes, with the river segment taking roughly two minutes. The 4,000‑tonne machine operated at a depth of 89 m, with alignment tolerances controlled to the millimetre and the structure designed to withstand water pressure up to 0.9 MPa. Project officials, including deputy manager Wang Yi, highlighted the precision required for safety and passenger comfort. Completion of the tunnel is slated for the end of 2024, after which Chongming Island will receive its first high‑speed rail connection.

Claims

What the coverage asserts, and how well corroborated each claim is across sources.

[● 3 SOURCES] Linghang tunnel boring machine has a diameter of 15.4 metres. (multiple sources)
[● 3 SOURCES] Linghang completed a continuous tunnel of 11.3 km under the Yangtze River. (multiple sources)
[● 3 SOURCES] The tunnel reaches a depth of 89 metres below the water surface. (multiple sources)
[● 2 SOURCES] The tunnel will connect Shanghai's Chongming Island with Taicang in Jiangsu province. (multiple sources)
[● 2 SOURCES] Trains will travel at a design speed of 350 km/h through the tunnel. (multiple sources)
[● 2 SOURCES] Travel time between Chongming Island and Shanghai will be about 17 minutes. (multiple sources)
[○ 1 SOURCE] Completion of the tunnel is scheduled for the end of 2024. (multiple sources)
[○ 1 SOURCE] The tunnel will be the fastest underwater high‑speed rail tunnel worldwide. (multiple sources)

Timeline

4 days ago

[TECHNOLOGY] 6 sources
China's Linghang TBM sets world record tunneling under Yangtze River
China’s Linghang TBM set a world record by boring an 11.3 km tunnel under the Yangtze River, linking Shanghai’s Chongming Island to Taicang for 350 km/h high‑speed rail, slated to finish by end‑2024.
26 days ago

[TECHNOLOGY] 2 sources
China completes the world’s largest train station in Chongqing
China finished the 1.22 million m² Chongqing East station— the world’s largest— in 38 months, using 2 million m³ concrete, 366 000 t steel and 40 000 workers, with capacity for 16 000 passengers per hour.

Sources

cafef.vn · ithome.com · m.soha.vn · news.hkheadline.com.hk · scmp.com · vosveteit.zoznam.sk

This summary has been updated 1 time: see revision history