Tunnel along railway linking Shenzhen and Shanwei special cooperation zone under construction

Workers work at the construction site of a tunnel in Pingshan, Shenzhen City, south China's Guangdong Province, Aug. 1, 2025. A giant tunnel boring machine started operation on Friday to spearhead the excavation works for a tunnel along a railway linking Shenzhen and Shanwei special cooperation zone in Shenzhen.

The machine features an excavation diameter of 14.34 meters and an excavation length of 3,850.6 meters. (Xinhua/Liu Dawei)

Technicians check a tunnel boring machine (TBM) at the construction site of a tunnel in Pingshan, Shenzhen City, south China's Guangdong Province, Aug. 1, 2025. A giant tunnel boring machine started operation on Friday to spearhead the excavation works for a tunnel along a railway linking Shenzhen and Shanwei special cooperation zone in Shenzhen.

The machine features an excavation diameter of 14.34 meters and an excavation length of 3,850.6 meters. (Xinhua/Liu Dawei)

A technician checks a tunnel boring machine (TBM) at the construction site of a tunnel in Pingshan, Shenzhen City, south China's Guangdong Province, Aug. 1, 2025. A giant tunnel boring machine started operation on Friday to spearhead the excavation works for a tunnel along a railway linking Shenzhen and Shanwei special cooperation zone in Shenzhen.

The machine features an excavation diameter of 14.34 meters and an excavation length of 3,850.6 meters. (Xinhua/Liu Dawei)

A technician checks a tunnel boring machine (TBM) at the construction site of a tunnel in Pingshan, Shenzhen City, south China's Guangdong Province, Aug. 1, 2025. A giant tunnel boring machine started operation on Friday to spearhead the excavation works for a tunnel along a railway linking Shenzhen and Shanwei special cooperation zone in Shenzhen.

The machine features an excavation diameter of 14.34 meters and an excavation length of 3,850.6 meters. (Xinhua/Liu Dawei)

Workers work at the construction site of a tunnel in Pingshan, Shenzhen City, south China's Guangdong Province, Aug. 1, 2025. A giant tunnel boring machine started operation on Friday to spearhead the excavation works for a tunnel along a railway linking Shenzhen and Shanwei special cooperation zone in Shenzhen.

The machine features an excavation diameter of 14.34 meters and an excavation length of 3,850.6 meters. (Xinhua/Liu Dawei)

Workers work at the construction site of a tunnel in Pingshan, Shenzhen City, south China's Guangdong Province, Aug. 1, 2025. A giant tunnel boring machine started operation on Friday to spearhead the excavation works for a tunnel along a railway linking Shenzhen and Shanwei special cooperation zone in Shenzhen.

The machine features an excavation diameter of 14.34 meters and an excavation length of 3,850.6 meters. (Xinhua/Liu Dawei)

A drone photo shows Xiamen-Shenzhen Railway along the construction site of a tunnel in Pingshan, Shenzhen City, south China's Guangdong Province, Aug. 1, 2025. A giant tunnel boring machine started operation on Friday to spearhead the excavation works for a tunnel along a railway linking Shenzhen and Shanwei special cooperation zone in Shenzhen.

The machine features an excavation diameter of 14.34 meters and an excavation length of 3,850.6 meters. (Xinhua/Liu Dawei)