自进式中空注浆锚杆在隧道围岩支护中的应用

The Application of Self-feeding Hollow Grouting Anchor on Supporting of Tunnel Surrounding Rock

自进式中空注浆锚杆是一种集钻进、注浆、锚固功能于一体的新型锚杆,能够保证在复杂地层中施工效率高,安全可靠,锚固质量好。本文结合工程实例详细介绍了其在隧道围岩支护中的应用。

Self- feeding hollow grouting anchor is a new set of drilling, grouting and anchoring functions into one , It can ensure the construction efficiently under the complex formation and reliable anchoring effect. This paper describes the application on supporting of tunnel surrounding rock.