摘要
通过工程实例,介绍超深钻孔灌注桩施工时对近距离大直径隧道结构采取的技术保护措施。这些措施包括钻孔灌注桩施工质量控制、施工监测、隧道内同步注浆、预应力临时支护、灌注桩膨润土护壁等。
According to some engineering cases, technical protection measures to adjacent large diameter tunnel structure during the construction of super-deep bored pile are put forward in this paper. Several key points are introduced including bored pile construction quality control, construction monitoring, tunnel synchronous grouting, prestressed temporary support, and fi lling pile bentonite retaining wall, etc.
出处
《中国市政工程》
2014年第2期50-52,109,共3页
China Municipal Engineering
关键词
超深
钻孔灌注桩
大直径隧道
监测
支护
注浆
super-deep
bored pile
large diameter tunnel
monitoring
support
grouting
