摘要
根据木槽岩隧道穿越区地质条件和实际施工情况,施工中采取了超前支护、分步开挖、稳步推进的方法,并增加了超前小导管及锁脚小导管、锁脚锚杆等支护方式,加强测量观测工作,避免不良地质给施工造成的损失。
Based on the geological and construction conditions of Mucaoyan tunnel,the paper adopted advanced support,step-by-step excavation,advanced steady method,and increased the advanced small catheter,lock small feet catheter and lock feet anchor supporting way etc,strengthened the measurement and avoided the losing due to bad geology.
出处
《交通科技》
2010年第6期31-33,共3页
Transportation Science & Technology
关键词
洞身开挖
施工技术
不良地质洞段
处理措施
hole body excavation
construction technology
bad geological section
treatment measures
