摘要
根据朱亭隧道进口段施工便道过隧顶特浅埋段的地质结构特点 ,介绍了采用砂浆锚杆加固地表、R2 7N自进式吉迈注浆锚杆超前支护等措施 ,顺利通过了特浅埋段的施工 ,保证了施工安全和京广线的行车安全。
Combined with certain project, according to geology structure characteristics, the construction technology of using sand pulp anchor arm to consolidate ground surface and using R27N self-advancing slurry-injection anchor aim to support structure is introduced. And the author points out that this construction technology can successfully finish construction and also ensure construction safety and traffic safety of Jingguang line.
出处
《山西建筑》
2003年第1期89-90,共2页
Shanxi Architecture
关键词
大跨浅埋
隧顶
施工
地表加固
砂浆锚杆
吉迈锚杆
large span, shallowly buried, ground surface, consolidation, sand slurry anchor arm
