摘要
以申家坡隧道为例,提出软弱破碎坡积岩层中进洞口施工方案,通过地表预注浆加固,超前长管棚和洞身三台阶法施工的成功运用,保证了隧道洞口施工的安全和稳定。
With Shenjia slope tunnel as an example,it proposes tunnel entrance construction program among soft and week turbidities sequence.Through successful application of the surface pre-grouting,long pipe shed and the hole body three-step construction,it ensures the safe and stable construction at the tunnel entrance.
出处
《山西建筑》
2010年第25期316-318,共3页
Shanxi Architecture
关键词
进洞口
地表注浆
长管棚
三台阶法
tunnel entrance
surface grouting
long steel pipe
three-step method
