Türkiye's headrace tunnel site ushered in eye-catching construction achievements, and the self developed shield machine equipment of CRCC Heavy Industries set new overseas excavation data. The complex geological strata in overseas underground engineering construction restrict the efficiency of excavation. This equipment relies on customized hard rock adaptation design and intelligent monitoring system to overcome construction difficulties, and the outstanding excavation results confirm the technological advantages of domestic equipment, and also add a new benchmark for China soil foundation cooperation.

Outstanding equipment performance

The shield tunneling machine has an excavation diameter of 7.78 meters and a total length of 144 meters, with a total weight of 1500 tons. It is specially optimized for long-distance hard rock formations, with a reinforced cutterhead and 19 inch rolling cutters to enhance rock breaking ability. The explosion-proof and enclosed slag discharge design is designed to deal with gas hazards, and an intelligent monitoring system is equipped to ensure stable operation. In June, the equipment achieved a daily footage of 34 meters, a weekly footage of 215 meters, and a monthly footage of 770 meters, breaking the overseas single month excavation record for similar equipment.  

Full process technical escort

The technical team of China Railway Construction Heavy Industry provides a complete set of technical support on-site, adjusts excavation parameters according to local conditions, and conducts equipment operation and maintenance training for local staff. Their professional services have been recognized by partners.Keywords: domestic shield tunneling going global

The enterprise has been in the infrastructure market of Türkiye for a long time, and many shield machines have participated in water conservancy and subway projects in many places. In the future, the company will continue to export complete sets of high-end underground equipment solutions and expand the overseas influence of China's intelligent manufacturing.  Editor/Min Jing