World Longest Underwater Road Tunnel Construction

World Longest Underwater Road Tunnel Construction

QINGDAO, CHINA - DECEMBER 15, 2025 - At the excavation site of the "Haitian" shield tunneling machine, the builders are carrying out bolt tightening work on the pipe segments in Qingdao, Shandong Province, China on December 15, 2025. The tunnel is 17.48 kilometers long, with a sea section of 9.95 kilometers, making it the longest underwater road tunnel currently under construction in the world.

World Longest Underwater Road Tunnel Construction

World Longest Underwater Road Tunnel Construction

QINGDAO, CHINA - DECEMBER 15, 2025 - The "Haitian" shield tunneling machine of the second tunnel broke through 3000 meters in Jiaozhou Bay, Qingdao, China on December 15, 2025. The tunnel is 17.48 kilometers long, with a sea section of 9.95 kilometers, making it the longest underwater road tunnel currently under construction in the world.

World Longest Underwater Road Tunnel Construction

World Longest Underwater Road Tunnel Construction

QINGDAO, CHINA - DECEMBER 15, 2025 - At the excavation site of the "Haitian" shield tunneling machine, the builders are carrying out bolt tightening work on the pipe segments in Qingdao, Shandong Province, China on December 15, 2025. The tunnel is 17.48 kilometers long, with a sea section of 9.95 kilometers, making it the longest underwater road tunnel currently under construction in the world.

World Longest Underwater Road Tunnel Construction

World Longest Underwater Road Tunnel Construction

QINGDAO, CHINA - DECEMBER 15, 2025 - At the excavation site of the "Haitian" shield tunneling machine, the builders are carrying out bolt tightening work on the pipe segments in Qingdao, Shandong Province, China on December 15, 2025. The tunnel is 17.48 kilometers long, with a sea section of 9.95 kilometers, making it the longest underwater road tunnel currently under construction in the world.

2025 WMC Held in Hefei

2025 WMC Held in Hefei

HEFEI, CHINA - SEPTEMBER 20, 2025 - Tourists visit the first 16 meter ultra large diameter shield tunneling machine "Jinghua" model produced in China at the 2025 World Manufacturing Convention (WMC) at the Binhu International Convention and Exhibition Center in Hefei, Anhui Province, China on September 20, 2025.

3rd CISCE Held in Beijing

3rd CISCE Held in Beijing

BEIJING, CHINA - JULY 17, 2025 - The audience watched the largest diameter shield tunneling machine model independently developed by China at the 3rd China International Supply Chain Expo in Beijing, China on July 17, 2025.

Rail Shield Tunneling in Chongqing

Rail Shield Tunneling in Chongqing

CHONGQING, CHINA - APRIL 28, 2025 - A technician is operating a shield machine for tunneling operations in the section between the Logistics Park Hub Station and the Logistics Park North Station of the first phase of Chongqing Rail Transit Line 7 in Chongqing, China on April 28, 2025.

Rail Shield Tunneling in Chongqing

Rail Shield Tunneling in Chongqing

CHONGQING, CHINA - APRIL 28, 2025 - Workers are engaged in the assembly of shield segments in the tunnel between the Logistics Park Hub Station and the Logistics Park North Station of the first phase of Chongqing Rail Transit Line 7 in Chongqing, China on April 28, 2025.

Rail Shield Tunneling in Chongqing

Rail Shield Tunneling in Chongqing

CHONGQING, CHINA - APRIL 28, 2025 - A construction worker is conducting horizontal transportation of shield segments between the Logistics Park Hub Station and the Logistics Park North Station section of the first phase of Chongqing Rail Transit Line 7 in Chongqing, China on April 28, 2025.

Rail Shield Tunneling in Chongqing

Rail Shield Tunneling in Chongqing

CHONGQING, CHINA - APRIL 28, 2025 - The shield machine is all set to go for the section between the Logistics Park Hub Station and the Logistics Park North Station of the first phase of Chongqing Rail Transit Line 7 in Chongqing, China, April 28, 2025.

Rail Shield Tunneling in Chongqing

Rail Shield Tunneling in Chongqing

CHONGQING, CHINA - APRIL 28, 2025 - Construction workers at the Logistics Park North Station of the Logistics Park Hub Station of the first phase of Chongqing Rail Transit Line 7 are engaged in the hoisting and lowering of shield segments into the shaft in Chongqing, China on April 28, 2025.

Assembly Ceremony for The Shield Tbm Tool Carrier - China

Assembly Ceremony for The Shield Tbm Tool Carrier - China

An aerial drone photo taken on January 22, 2025 shows the cutter head of "Jianghaihao" shield tunneling machine being hoisted at a construction site of Haitai Yangtze River Tunnel in Nantong City, east China's Jiangsu Province. The mounting ceremony of the cutter head of "Jianghaihao" shield tunneling machine, with a diameter of 16.64 meters, was held here on Wednesday. The 39.07-km Haitai Yangtze River Tunnel links the Haimen District of Nantong City with Taicang of Suzhou City, both in Jiangsu. Photo by Xinhua/Yang Lei/ABACAPRESS.COM

Assembly Ceremony for The Shield Tbm Tool Carrier - China

Assembly Ceremony for The Shield Tbm Tool Carrier - China

This photo taken on January 22, 2025 shows the cutter head of "Jianghaihao" shield tunneling machine at a construction site of Haitai Yangtze River Tunnel in Nantong City, east China's Jiangsu Province. The mounting ceremony of the cutter head of "Jianghaihao" shield tunneling machine, with a diameter of 16.64 meters, was held here on Wednesday. The 39.07-km Haitai Yangtze River Tunnel links the Haimen District of Nantong City with Taicang of Suzhou City, both in Jiangsu. Photo by Xinhua/Yang Lei/ABACAPRESS.COM

Assembly Ceremony for The Shield Tbm Tool Carrier - China

Assembly Ceremony for The Shield Tbm Tool Carrier - China

An aerial drone photo taken on January 22, 2025 shows the cutter head of "Jianghaihao" shield tunneling machine during its mounting ceremony at a construction site of Haitai Yangtze River Tunnel in Nantong City, east China's Jiangsu Province. The mounting ceremony of the cutter head of "Jianghaihao" shield tunneling machine, with a diameter of 16.64 meters, was held here on Wednesday. The 39.07-km Haitai Yangtze River Tunnel links the Haimen District of Nantong City with Taicang of Suzhou City, both in Jiangsu. Photo by Xinhua/Ji Chunpeng/ABACAPRESS.COM

Assembly Ceremony for The Shield Tbm Tool Carrier - China

Assembly Ceremony for The Shield Tbm Tool Carrier - China

This photo taken on January 22, 2025 shows the cutter head of "Jianghaihao" shield tunneling machine at a construction site of Haitai Yangtze River Tunnel in Nantong City, east China's Jiangsu Province. The mounting ceremony of the cutter head of "Jianghaihao" shield tunneling machine, with a diameter of 16.64 meters, was held here on Wednesday. The 39.07-km Haitai Yangtze River Tunnel links the Haimen District of Nantong City with Taicang of Suzhou City, both in Jiangsu. Photo by Xinhua/Yang Lei/ABACAPRESS.COM

Assembly Ceremony for The Shield Tbm Tool Carrier - China

Assembly Ceremony for The Shield Tbm Tool Carrier - China

An aerial drone photo taken on January 22, 2025 shows the cutter head of "Jianghaihao" shield tunneling machine being hoisted at a construction site of Haitai Yangtze River Tunnel in Nantong City, east China's Jiangsu Province. The mounting ceremony of the cutter head of "Jianghaihao" shield tunneling machine, with a diameter of 16.64 meters, was held here on Wednesday. The 39.07-km Haitai Yangtze River Tunnel links the Haimen District of Nantong City with Taicang of Suzhou City, both in Jiangsu. Photo by Xinhua/Yang Lei/ABACAPRESS.COM

Assembly Ceremony for The Shield Tbm Tool Carrier - China

Assembly Ceremony for The Shield Tbm Tool Carrier - China

An aerial drone photo taken on January 22, 2025 shows the cutter head of "Jianghaihao" shield tunneling machine being hoisted at a construction site of Haitai Yangtze River Tunnel in Nantong City, east China's Jiangsu Province. The mounting ceremony of the cutter head of "Jianghaihao" shield tunneling machine, with a diameter of 16.64 meters, was held here on Wednesday. The 39.07-km Haitai Yangtze River Tunnel links the Haimen District of Nantong City with Taicang of Suzhou City, both in Jiangsu. Photo by Xinhua/Yang Lei/ABACAPRESS.COM

Assembly Ceremony for The Shield Tbm Tool Carrier - China

Assembly Ceremony for The Shield Tbm Tool Carrier - China

An aerial drone photo taken on January 22, 2025 shows the cutter head of "Jianghaihao" shield tunneling machine during its mounting ceremony at a construction site of Haitai Yangtze River Tunnel in Nantong City, east China's Jiangsu Province. The mounting ceremony of the cutter head of "Jianghaihao" shield tunneling machine, with a diameter of 16.64 meters, was held here on Wednesday. The 39.07-km Haitai Yangtze River Tunnel links the Haimen District of Nantong City with Taicang of Suzhou City, both in Jiangsu. Photo by Xinhua/Ji Chunpeng/ABACAPRESS.COM

Assembly Ceremony for The Shield Tbm Tool Carrier - China

Assembly Ceremony for The Shield Tbm Tool Carrier - China

This photo taken on January 22, 2025 shows the cutter head of "Jianghaihao" shield tunneling machine during its mounting ceremony at a construction site of Haitai Yangtze River Tunnel in Nantong City, east China's Jiangsu Province. The mounting ceremony of the cutter head of "Jianghaihao" shield tunneling machine, with a diameter of 16.64 meters, was held here on Wednesday. The 39.07-km Haitai Yangtze River Tunnel links the Haimen District of Nantong City with Taicang of Suzhou City, both in Jiangsu. Photo by Xinhua/Ji Chunpeng/ABACAPRESS.COM

Fabricated Shield Tunnel Segments

Fabricated Shield Tunnel Segments

NANCHANG, CHINA - JANUARY 1, 2025 - Nanchang Jiujiang High speed Railway shield tunneling, Nanchang City, Jiangxi Province, China, January 1, 2025.

Fabricated Shield Tunnel Segments

Fabricated Shield Tunnel Segments

NANCHANG, CHINA - JANUARY 1, 2025 - Lifting of shield tunneling machine segments for Tianxiang Avenue Tunnel of Nanchang Jiujiang High speed Railway, Nanchang City, Jiangxi Province, China, January 1, 2025.

Fabricated Shield Tunnel Segments

Fabricated Shield Tunnel Segments

NANCHANG, CHINA - JANUARY 1, 2025 - Lifting of shield tunneling machine segments for Tianxiang Avenue Tunnel of Nanchang Jiujiang High speed Railway, Nanchang City, Jiangxi Province, China, January 1, 2025.

Fabricated Shield Tunnel Segments

Fabricated Shield Tunnel Segments

NANCHANG, CHINA - JANUARY 1, 2025 - Assembly of shield tunneling machine segments for Tianxiang Avenue Tunnel of Nanchang Jiujiang High speed Railway, Nanchang City, Jiangxi Province, China, January 1, 2025.

Anhui's First Yangtze River Tunnel Opened in Wuhu

Anhui's First Yangtze River Tunnel Opened in Wuhu

WUHU, CHINA- OCTOBER 12, 2024 - Anhui's first Yangtze River tunnel, the Chengnan River Crossing Tunnel (right line) Opened in Wuhu, Anhui province, China, October 12, 2024.

Anhui's First Yangtze River Tunnel Opened in Wuhu

Anhui's First Yangtze River Tunnel Opened in Wuhu

WUHU, CHINA- OCTOBER 12, 2024 - Anhui's first Yangtze River tunnel, the Chengnan River Crossing Tunnel (right line) Opened in Wuhu, Anhui province, China, October 12, 2024.

Anhui's First Yangtze River Tunnel Opened in Wuhu

Anhui's First Yangtze River Tunnel Opened in Wuhu

WUHU, CHINA- OCTOBER 12, 2024 - Anhui's first Yangtze River tunnel, the Chengnan River Crossing Tunnel (right line) Opened in Wuhu, Anhui province, China, October 12, 2024.

Anhui's First Yangtze River Tunnel Opened in Wuhu

Anhui's First Yangtze River Tunnel Opened in Wuhu

WUHU, CHINA- OCTOBER 12, 2024 - Anhui's first Yangtze River tunnel, the Chengnan River Crossing Tunnel (right line) Opened in Wuhu, Anhui province, China, October 12, 2024.

Anhui's First Yangtze River Tunnel Opened in Wuhu

Anhui's First Yangtze River Tunnel Opened in Wuhu

WUHU, CHINA- OCTOBER 12, 2024 - Anhui's first Yangtze River tunnel, the Chengnan River Crossing Tunnel (right line) Opened in Wuhu, Anhui province, China, October 12, 2024.

Anhui's First Yangtze River Tunnel Opened in Wuhu

Anhui's First Yangtze River Tunnel Opened in Wuhu

WUHU, CHINA- OCTOBER 12, 2024 - Anhui's first Yangtze River tunnel, the Chengnan River Crossing Tunnel (right line) Opened in Wuhu, Anhui province, China, October 12, 2024.

Anhui's First Yangtze River Tunnel Opened in Wuhu

Anhui's First Yangtze River Tunnel Opened in Wuhu

WUHU, CHINA- OCTOBER 12, 2024 - Anhui's first Yangtze River tunnel, the Chengnan River Crossing Tunnel (right line) Opened in Wuhu, Anhui province, China, October 12, 2024.

Anhui's First Yangtze River Tunnel Opened in Wuhu

Anhui's First Yangtze River Tunnel Opened in Wuhu

WUHU, CHINA- OCTOBER 12, 2024 - Anhui's first Yangtze River tunnel, the Chengnan River Crossing Tunnel (right line) Opened in Wuhu, Anhui province, China, October 12, 2024.

Anhui's First Yangtze River Tunnel Opened in Wuhu

Anhui's First Yangtze River Tunnel Opened in Wuhu

WUHU, CHINA- OCTOBER 12, 2024 - Anhui's first Yangtze River tunnel, the Chengnan River Crossing Tunnel (right line) Opened in Wuhu, Anhui province, China, October 12, 2024.

Anhui's First Yangtze River Tunnel Opened in Wuhu

Anhui's First Yangtze River Tunnel Opened in Wuhu

WUHU, CHINA- OCTOBER 12, 2024 - Anhui's first Yangtze River tunnel, the Chengnan River Crossing Tunnel (right line) Opened in Wuhu, Anhui province, China, October 12, 2024.

Nanchang-Jiujiang High-speed Railway Construction

Nanchang-Jiujiang High-speed Railway Construction

NANCHANG, CHINA - JULY 10, 2024 - Workers install tunnel segments at the excavation site of "Hero" shield tunneling machine at Tianxiang Avenue tunnel of Nanchang-Jiujiang High-speed Railway in Nanchang, East China's Jiangxi province, July 10, 2024.

Nanchang-Jiujiang High-speed Railway Construction

Nanchang-Jiujiang High-speed Railway Construction

NANCHANG, CHINA - JULY 10, 2024 - Workers use a gantry crane to carry out pipe segment lifting at the tunneling surface of "Hero" shield machine of Tianxiang Avenue Tunnel in Nanchang, Jiangxi province, July 10, 2024.

Nanchang-Jiujiang High-speed Railway Construction

Nanchang-Jiujiang High-speed Railway Construction

NANCHANG, CHINA - JULY 10, 2024 - Workers use a gantry crane to carry out pipe segment lifting at the tunneling surface of "Hero" shield machine of Tianxiang Avenue Tunnel in Nanchang, Jiangxi province, July 10, 2024.

(China Economic Roundtable) Xinhua Headlines: A closer look at China's economic steadiness, vitality and potential

(China Economic Roundtable) Xinhua Headlines: A closer look at China's economic steadiness, vitality and potential

(240425) -- BEIJING, April 25, 2024 (Xinhua) -- Technicians check a shield tunneling machine before delivery at a factory of Northern Heavy Industry Group Co., Ltd. in Shenyang, northeast China's Liaoning Province, March 21, 2024. (Xinhua/Yang Qing)

XINHUA PHOTOS OF THE DAY

XINHUA PHOTOS OF THE DAY

(240229) -- BEIJING, Feb. 29, 2024 (Xinhua) -- Constructors adjust cutter position of a shield-tunneling machine at the Shenguan tunnel construction site of the railway linking Shenzhen and Jiangmen in south China's Guangdong Province, Feb. 28, 2024. (Xinhua/Liu Dawei)

CHINA-CHONGQING-YANGTZE RIVER TUNNEL-CONSTRUCTION (CN)

CHINA-CHONGQING-YANGTZE RIVER TUNNEL-CONSTRUCTION (CN)

(240204) -- CHONGQING, Feb. 4, 2024 (Xinhua) -- Workers work at the control center at the construction site of the Chongqing Yangtze River Tunnel project in southwest China's Chongqing Municipality, Feb. 4, 2024. Chongqing Yangtze River Tunnel project is a key project of the Chongqing-Qianjiang section of a high-speed railway linking Chongqing and central China's Hunan Province. With a total length of about 11.9 kilometers, it is the first high-speed railway tunnel to cross the Yangtze River using the shield-tunneling method. In the days leading to the Spring Festival, more than 70 constructors from China Railway 14th Bureau Group Corporation Limited stuck to their posts, making great efforts to accelerate the construction of the project. (Xinhua/Wang Quanchao)

CHINA-CHONGQING-YANGTZE RIVER TUNNEL-CONSTRUCTION (CN)

CHINA-CHONGQING-YANGTZE RIVER TUNNEL-CONSTRUCTION (CN)

(240204) -- CHONGQING, Feb. 4, 2024 (Xinhua) -- Workers work at the construction site of the Chongqing Yangtze River Tunnel project in southwest China's Chongqing Municipality, Feb. 4, 2024. Chongqing Yangtze River Tunnel project is a key project of the Chongqing-Qianjiang section of a high-speed railway linking Chongqing and central China's Hunan Province. With a total length of about 11.9 kilometers, it is the first high-speed railway tunnel to cross the Yangtze River using the shield-tunneling method. In the days leading to the Spring Festival, more than 70 constructors from China Railway 14th Bureau Group Corporation Limited stuck to their posts, making great efforts to accelerate the construction of the project. (Xinhua/Wang Quanchao)

CHINA-CHONGQING-YANGTZE RIVER TUNNEL-CONSTRUCTION (CN)

CHINA-CHONGQING-YANGTZE RIVER TUNNEL-CONSTRUCTION (CN)

(240204) -- CHONGQING, Feb. 4, 2024 (Xinhua) -- A worker works at the construction site of the Chongqing Yangtze River Tunnel project in southwest China's Chongqing Municipality, Feb. 4, 2024. Chongqing Yangtze River Tunnel project is a key project of the Chongqing-Qianjiang section of a high-speed railway linking Chongqing and central China's Hunan Province. With a total length of about 11.9 kilometers, it is the first high-speed railway tunnel to cross the Yangtze River using the shield-tunneling method. In the days leading to the Spring Festival, more than 70 constructors from China Railway 14th Bureau Group Corporation Limited stuck to their posts, making great efforts to accelerate the construction of the project. (Xinhua/Wang Quanchao)

CHINA-CHONGQING-YANGTZE RIVER TUNNEL-CONSTRUCTION (CN)

CHINA-CHONGQING-YANGTZE RIVER TUNNEL-CONSTRUCTION (CN)

(240204) -- CHONGQING, Feb. 4, 2024 (Xinhua) -- Workers work at the construction site of the Chongqing Yangtze River Tunnel project in southwest China's Chongqing Municipality, Feb. 4, 2024. Chongqing Yangtze River Tunnel project is a key project of the Chongqing-Qianjiang section of a high-speed railway linking Chongqing and central China's Hunan Province. With a total length of about 11.9 kilometers, it is the first high-speed railway tunnel to cross the Yangtze River using the shield-tunneling method. In the days leading to the Spring Festival, more than 70 constructors from China Railway 14th Bureau Group Corporation Limited stuck to their posts, making great efforts to accelerate the construction of the project. (Xinhua/Wang Quanchao)

CHINA-CHONGQING-YANGTZE RIVER TUNNEL-CONSTRUCTION (CN)

CHINA-CHONGQING-YANGTZE RIVER TUNNEL-CONSTRUCTION (CN)

(240204) -- CHONGQING, Feb. 4, 2024 (Xinhua) -- A worker works at the construction site of the Chongqing Yangtze River Tunnel project in southwest China's Chongqing Municipality, Feb. 4, 2024. Chongqing Yangtze River Tunnel project is a key project of the Chongqing-Qianjiang section of a high-speed railway linking Chongqing and central China's Hunan Province. With a total length of about 11.9 kilometers, it is the first high-speed railway tunnel to cross the Yangtze River using the shield-tunneling method. In the days leading to the Spring Festival, more than 70 constructors from China Railway 14th Bureau Group Corporation Limited stuck to their posts, making great efforts to accelerate the construction of the project. (Xinhua/Wang Quanchao)

CHINA-CHONGQING-YANGTZE RIVER TUNNEL-CONSTRUCTION (CN)

CHINA-CHONGQING-YANGTZE RIVER TUNNEL-CONSTRUCTION (CN)

(240204) -- CHONGQING, Feb. 4, 2024 (Xinhua) -- Workers work at the construction site of the Chongqing Yangtze River Tunnel project in southwest China's Chongqing Municipality, Feb. 4, 2024. Chongqing Yangtze River Tunnel project is a key project of the Chongqing-Qianjiang section of a high-speed railway linking Chongqing and central China's Hunan Province. With a total length of about 11.9 kilometers, it is the first high-speed railway tunnel to cross the Yangtze River using the shield-tunneling method. In the days leading to the Spring Festival, more than 70 constructors from China Railway 14th Bureau Group Corporation Limited stuck to their posts, making great efforts to accelerate the construction of the project. (Xinhua/Wang Quanchao)

XINHUA PHOTOS OF THE DAY

XINHUA PHOTOS OF THE DAY

(240119) -- BEIJING, Jan. 19, 2024 (Xinhua) -- An aerial drone photo taken on Jan. 18, 2024 shows a scene at the construction site of a tunnel project in Tianjin, north China. The construction of a tunnel project for Tianjin-Weifang high speed railway started here on Thursday. It is the longest railway tunnel in the Beijing-Tianjin-Hebei region created using the shield-tunneling method. With a design speed of 350 km per hour, the Tianjin-Weifang high speed railway connects north China's Tianjin with Weifang of east China's Shandong Province. (Xinhua/Xing Guangli)

CHINA-NEW YEAR-WORKERS(CN)

CHINA-NEW YEAR-WORKERS(CN)

(240102) -- BEIJING, Jan. 2, 2024 (Xinhua) -- Staff members adjust a shield tunneling machine at a section of Tianjin rail transit line Z2 in north China's Tianjin, Jan. 2, 2024. (Xinhua/Zhao Zishuo)

GERMANY-NUREMBERG-INT'L INVENTORS' TRADE FAIR

GERMANY-NUREMBERG-INT'L INVENTORS' TRADE FAIR

(231029) -- NUREMBERG, Oct. 29, 2023 (Xinhua) -- A staff member (L) of Shandong University introduces an intelligent shield-tunneling system to a visitor at the 75th international inventors' trade fair in Nuremberg, Germany, Oct. 28, 2023. The 75th international inventors' trade fair, also known as "iENA," opened here on Saturday with China as the partner country. Around 80 innovation projects from China were presented at the fair, said Henning Koenicke, managing partner of the event's organizer, AFAG. (Xinhua/Ren Pengfei)

Large-diameter main bearing for tunneling machine rolls off production line

STORY: Large-diameter main bearing for tunneling machine rolls off production line DATELINE: Oct. 13, 2023 LENGTH: 00:01:00 LOCATION: CHANGSHA, China CATEGORY: SOCIETY SHOTLIST: 1. various of the rolling off ceremony 2. various of the producing process of the main bearing STORYLINE: A domestically-developed large-diameter main bearing for shield tunneling machines rolled off the production line on Wednesday in Changsha, China. The main bearing, weighing 62 tonnes, could be used on tunneling machines with a diameter of 18 meters. Xinhua News Agency correspondents reporting from Changsha, China. (XHTV)

CHINA-BEIJING-EXPRESSWAY-SHIELD TUNNEL (CN)

CHINA-BEIJING-EXPRESSWAY-SHIELD TUNNEL (CN)

(230822) -- BEIJING, Aug. 22, 2023 (Xinhua) -- This photo taken on Aug. 21, 2023 shows the shield-tunneling machine at the construction site of China's longest expressway shield tunnel project, in Beijing, capital of China. China drilled a tunnel through for expressway transport in Beijing on Monday. It is the longest expressway tunnel in the country created using the shield-tunneling method. The tunnel is part of Beijing's east sixth ring road project. The deepest section of the tunnel, which is 75 meters underground, is the deepest underground tunnel in Beijing. In June, the west tunnel of the project was the first to be drilled through. The east tunnel was just drilled through on Monday. (Xinhua/Ju Huanzong)

CHINA-BEIJING-EXPRESSWAY-SHIELD TUNNEL (CN)

CHINA-BEIJING-EXPRESSWAY-SHIELD TUNNEL (CN)

(230822) -- BEIJING, Aug. 22, 2023 (Xinhua) -- This photo taken on Aug. 21, 2023 shows the shield-tunneling machine at the construction site of China's longest expressway shield tunnel project, in Beijing, capital of China. China drilled a tunnel through for expressway transport in Beijing on Monday. It is the longest expressway tunnel in the country created using the shield-tunneling method. The tunnel is part of Beijing's east sixth ring road project. The deepest section of the tunnel, which is 75 meters underground, is the deepest underground tunnel in Beijing. In June, the west tunnel of the project was the first to be drilled through. The east tunnel was just drilled through on Monday. (Xinhua/Ju Huanzong)