1. Suitable for hard rock formations, with strong rock breaking ability.

2. Equipped with high-pressure sealing technology, main drive reliability technology and small-diameter assembly technology, it can be used in conditions of large covered depth, high water pressure, strong rock, and strong abrasion.

3. Easy cutter change, safe and efficient hard rock excavation.

4. The central area of the cutterhead has a scour function, which can prevent the soil from agglomerating on the cutterhead.

Heat Source Long-Distance Heating Pipeline Project in Fei County, Linyi City, Shandong Province

• Complex environments and challenges in terms of deep burial, high water pressure, strong hard rock, severe abrasion, and crossing the Beng River;

• The shield TBM, measuring 53 meters in length with a 3.82-meter excavation diameter, utilizes a composite hard rock cutter head design. It has a total weight of 185 tons;

• The shield TBM adopts a modular assembly process and innovative technologies such as high-pressure sealing, reliable main drive systems, and small-diameter assembly techniques.

Junan County Doushan Reservoir to Shiquanhu Reservoir Water System Connection Project

• The project presents challenges due to its extensive rock hardness, long jacking distance, and complex technical conditions;

• The shield TBM boasts a 4.41-meter excavation diameter, 95 meters in length, and a total weight of 380 tons;

• The shield TBM innovatively employs advanced techniques like multi-section composite shield bodies, honeycomb segment assembly, and multi-mode filling.