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Tunneling

Sangzhuling Tunnel of the Lalin Railway

The Sangzhu Ridge Tunnel on the Lalin Railway has an average altitude of 3500 meters.

Mila Mountain Tunnel on the Lalin Expressway

The Mila Mountain Tunnel on the Lalin Expressway, located at an altitude of over 4740 meters and with a total length of 5720 meters, is a key control project of the second phase of the Lalin Expressway.

Mangkang Mountain Tunnel of Sichuan-Tibet Railway

Mangkang Mountain Tunnel, with a cross-sectional area of 82 square meters and an average altitude of 3836 meters. The longest ventilation distance is 4569 meters.

Xiao Xiangling Tunnel, the longest tunnel on the Chengdu-Kunming Railway

The Xiao Xiangling Railway Tunnel, the longest tunnel currently under construction on the Chengdu-Kunming second line, is 21775m long. Located in the high-mountain region of the Hengduan Mountains, it is a Class A high-risk tunnel with various unfavorable geological conditions, including coal seam gas, large deformation of soft rock, karst, rock piles, radioactivity, weak rock bursts, and fault fracture zones.

Zhengwan High-speed Railway Xiangjiawan Tunnel

Wusongkou Yangtze River Tunnel of the Shanghai-Huzhou Railway

The Wusongkou Yangtze River Tunnel section of the Shanghai-Huton Railway has a single-line shield tunneling section of 6770 meters, a shield machine diameter of 9.3 meters, and a shaft length of 17.5 meters.

Shanghai Rail Transit Chongming Line

Shanghai Rail Transit Chongming Line, the interval large shield segment S-1318A section is 9km long, with an inner diameter of 11.9 meters and a width of 2 meters. It is a single-hole, double-track tunnel.

Shanghai Airport Line Project Packages 3, 5, 7, and 12

Airport Link Line 7 Project Wind Turbine Model: SDF(p4)-Nog12.5/4x110; Airport Link Line 5 Project Wind Turbine Model: SDF(p4)-No12/4x75

Shanghai natural gas pipeline project

The cross-river tunnel is approximately 15.3km long, including 8.3km from Chongming Island to Changxing Island (North Port of the Yangtze River) and 7.0km from Changxing Island to Pudong (South Port of the Yangtze River) (tunnel outer diameter 4000mm). Both sections were constructed using the shield method.

G219 Line West Tianshan Tunnel

G219 Line West Tianshan Tunnel, with a total length of 15700m (left tunnel 6870m, right tunnel 6856m, pilot tunnel 6835m). The pilot tunnel uses TBM construction, with a shield inner diameter of 8.2 meters and excavation cross-sections of 100 square meters for the left and right main tunnels. It is located at an altitude of 2600 meters.

Panxing Railway Tuole No. 3 inclined shaft

The Tuole Tunnel is 13.317 kilometers long.

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