Blog-Chenxing supplier of shield machine cutterhead sealing brushes

2025/11/07

Huzhou Nanxun Tunnel

Hongrun Construction Group Co., Ltd.

Northern Section of the Wuhan Metro Line 12 PPP Project

2025/11/07

Northern Section of the Wuhan Metro Line 12 PPP Project

China Railway Tunnel Corporation

Expansion of the Northern Section of the Western Passage (North-South Line) Project for the Hangzhou-Jiaxing-Huzhou South Drainage System.

2025/11/07

Expansion of the Northern Section of the Western Passage (North-South Line) Project for the Hangzhou-Jiaxing-Huzhou South Drainage System.

Singapore MRT Cross Island Line Phase 1 CR105 Project Tunnel

2025/11/07

Singapore MRT Cross Island Line Phase 1 CR105 Project Tunnel

2025/10/22

Wuhan Sanyang Road Yangtze River Tunnel

World’s First Public-Rail Integrated Construction Model: This is the world’s first completed shield-tunnel crossing a river that integrates both road and rail transportation. It features a dual-tube, three-layer structure: the upper layer serves as a highway smoke-exhaust duct; the middle layer accommodates a six-lane双向 highway; and the lower layer houses the tracks of Metro Line 7, a shared evacuation passage for both road and rail users, and utility tunnels—all designed to achieve intensive resource utilization. The construction faced enormous geological challenges: it was necessary to overcome the dual geological hurdles of the “diamond layer” and the “rice cake dough” formation. The rock strata contain up to 70% quartz, making them exceptionally hard—resulting in over 2,000 cutter changes during construction. At the same time, highly cohesive mudstone-siltstone formations posed significant risks of cutter clogging and mud cake buildup. To address these issues, the construction team employed innovative methods such as injecting hydrogen peroxide. The project has reaped numerous awards and technological achievements: it has won multiple prestigious honors, including the National High-Quality Engineering Award and the FIIDC Outstanding Engineering Award. Its research outcomes were recognized with the Second Prize of the National Science and Technology Progress Award. During construction, the team developed several technical procedures, including the "Normal-Pressure Cutter-Change Operating Procedures," and the newly devised "First Reverse, Then Forward, Finally Expansion" reverse construction method, which significantly reduced construction costs.

The Yongqing-Shanghai Section of the China-Russia East Pipeline Project – Yangtze River Tunneling Crossing工程

2025/10/22

The Yongqing-Shanghai Section of the China-Russia East Pipeline Project – Yangtze River Tunneling Crossing工程

This project is the first-ever engineering undertaking in the national pipeline network construction. It features a single-heading tunneling operation using a shield machine over a distance of 10.26 kilometers, with 7,500 meters of underwater tunneling and a maximum ice pressure of 0.73 megapascals. Currently, it represents the longest tunneling distance, deepest burial depth, and highest water pressure among all existing oil and gas pipeline projects that utilize shield tunneling technology to cross rivers worldwide.

Global Finance | China-made tunnel boring machines set a new daily excavation record of 61.73 meters in Lesotho.

2025/08/13

Global Finance | China-made tunnel boring machines set a new daily excavation record of 61.73 meters in Lesotho.

Xinhua Finance, Johannesburg, October 14 — According to reports from Maseru, recently, at the second phase of the Lesotho Highlands Water Project—the Polihali water conveyance tunnel project—the “Dayu Changfeng,” a tunnel boring machine independently developed by CCCC Tianhe, achieved a daily excavation rate of 61.73 meters, setting a new record for daily excavation performance among 5-meter-class dual-shield TBMs.

China Railway Equipment has developed the ultra-large-diameter tunnel boring machine “Barangaru.”

2025/07/30

China Railway Equipment has developed the ultra-large-diameter tunnel boring machine “Barangaru.”

On July 30, as the cutterhead began to rotate slowly, the ultra-large-diameter tunnel boring machine “Balangaru,” developed by China Railway Equipment, was successfully rolled off the production line at the Zhengzhou National TBM Industrialization Center. This machine is a “sister” to the “Patigaran,” which rolled off the production line in April of this year, and together they will serve the Western Harbour Project in Sydney, Australia. Leaders including Zhuo Xingjian, General Manager of China Railway Equipment, and Jia Yaowei, Deputy General Manager, along with representatives from the contractor of the Western Harbour Project in Sydney, Australia, attended the roll-off ceremony.

China Railway Equipment’s first-ever export of a large-diameter tunnel boring machine to South America has been a resounding success!

2025/07/17

China Railway Equipment’s first-ever export of a large-diameter tunnel boring machine to South America has been a resounding success!

Recently, good news came from Section 1 of the extension project for Metro Line 2 in São Paulo, Brazil: the large-diameter earth-pressure balanced tunnel boring machine “China Railway No. 1207,” developed by China Railway Equipment, has successfully completed the first-phase tunneling task of Section 1.

The “Funes” earth-pressure balanced dual-mode tunnel boring machine developed by China Railway Equipment.

2025/07/15

The “Funes” earth-pressure balanced dual-mode tunnel boring machine developed by China Railway Equipment.

On July 15, 2025, the “Funes,” a soil-pressure open-type dual-mode tunnel boring machine developed by China Railway Equipment, successfully started tunneling at the Fortezza railway tunnel project in Italy, marking the official entry of the project into the TBM construction phase.

The open-type TBM “Yunding No. 2” from CCCC Tianhe has successfully completed tunneling through Southeast Asia’s longest tunnel.

2025/07/12

The open-type TBM “Yunding No. 2” from CCCC Tianhe has successfully completed tunneling through Southeast Asia’s longest tunnel.

On July 12, the company’s open-type TBM “Yunding No. 2” successfully completed tunneling through the Yunding Tunnel—the longest tunnel in Southeast Asia—on Malaysia’s East Coast Rail Link. The company’s shield machines are accelerating their “going global” efforts, continuously providing high-quality, cutting-edge engineering equipment and full-industry-chain services to support global connectivity and contributing to the high-quality joint construction of the Belt and Road Initiative.

The “Qihang” dual-shield TBM has achieved a monthly advance of 701.8 meters on the Kaisaka Water Diversion Tunnel Project in the Philippines, setting a new record for tunneling progress!

2025/07/01

The “Qihang” dual-shield TBM has achieved a monthly advance of 701.8 meters on the Kaisaka Water Diversion Tunnel Project in the Philippines, setting a new record for tunneling progress!

Recently, we received news from the front lines of the Kaisaka Water Diversion Tunnel project in the Philippines! The “Qihang” dual-shield hard-rock TBM with an excavation diameter of 3.86 meters, developed by our company, achieved an impressive breakthrough of 701.8 meters in June, setting a new record for tunneling performance among small-diameter dual-shield TBMs of the same type.

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Contact Information

Address: No. 1 Tongsheng Road, South Area, Industrial Park, Gu'an County, Langfang City, Hebei Province

Phone: +86 3165927222

Email: chenxing@cxtunnel.com

Fax: +8603165927333

Mobile: +8615333366444

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