QUASAN has successfully applied the TY-320 Horizontal Crawler Drilling Rig in the Changbanpo Tunnel construction project, part of the Xiangyi Expressway (Yichang section). This marks another important milestone in the application of advanced hydraulic drilling equipment in China’s large-scale tunnel engineering projects.
The Changbanpo Tunnel is located in a complex mountainous region of Yichang, where engineers face several technical challenges:
Hard rock geological formations
Unstable surrounding rock conditions
Narrow underground working space
High safety requirements for deep tunnel excavation
To ensure construction efficiency and safety, high-performance drilling equipment is required for pre-support and reinforcement operations.

The QUASAN TY-320 hydraulic crawler drilling rig is designed specifically for demanding underground engineering environments. It integrates strong power performance with excellent mobility, making it ideal for tunnel construction applications.
Fully hydraulic control system for precise drilling operation
Strong crawler chassis for stable movement in rugged terrain
High drilling efficiency for rock and hard strata conditions
Compact design suitable for tunnel and confined spaces
Reliable continuous operation for long-term construction projects
During the Changbanpo Tunnel construction process, the TY-320 is mainly used for:
Advance geological exploration drilling
Tunnel face support and anchoring holes
Grouting reinforcement drilling
Pre-excavation stability improvement
The equipment significantly improves excavation safety and reduces construction risks in complex geological conditions.
By introducing the TY-320 drilling rig, the project team achieved:
✔ Faster tunnel excavation progress
✔ Improved rock stability control
✔ Reduced manual labor intensity
✔ Higher drilling accuracy and consistency
✔ Enhanced construction safety level
As a professional manufacturer of crawler drilling rigs, QUASAN continues to support global infrastructure projects with advanced drilling technology.
The successful application of the TY-320 in the Changbanpo Tunnel demonstrates the company’s capability in providing reliable solutions for modern tunnel and underground engineering projects.
For more product information and technical details, please visit:
https://www.crawlerdrill.com
Contact: Alex.Wauwil
Phone: +86-13489870058
E-mail: info@quasan.cn
Add: Unit 1, Building 9, High-Performance Industrial Equipment Industrial Park, Xiamei Town, Nan'an City, Fujian Province