摘要
针对重庆市某区间隧道埋深浅、断面大的特点,研究采用大管棚超前支护施工方法,介绍了大管棚超前支护的原理及设计参数,并对其施工工艺进行了重点论述,经实践证明该法在洞口开挖中取得成功,可指导类似工程施工。
Aiming at the characteristics of some section tunnel in Chongqing with shallow burial and large sections,the paper researches to adopt large pipe shed advanced support,introduces the principle and design parameters for large pipe shed advanced support,illustrates the construction craft,and proves that the method can be successful in the portal excavation,so as to direct the similar constructions.
出处
《山西建筑》
2010年第22期336-337,共2页
Shanxi Architecture
关键词
大管棚超前支护
隧道
施工工艺
参数
large pipe shed advanced support
tunnel
construction craft
parameter
