摘要
通过对大西客专乔家山隧道典型土样进行扫描电镜观测和仰拱内力监测,分析出现仰拱填充混凝土开裂的主要原因,阐述了树根桩及钢筋混凝土底板在仰拱填充裂缝处理过程中的施工技术参数和主要质量控制要点,以期可以指导其它类似工程施工。
Based on the scanning electron microscope observation and inverted arch internal force monitoring of the typical soil samples of Qiaojiashan Tunnel, Datong-Xi＇ an High-speed Railway, this paper analyzed the main reason for concrete cracking filled by inverted arch, elaborated the construction technology parameters and main quality control points of root pile and reinforced concrete floor during the process of the inverted arch filled crack, hoping to guide the construction of other similar projects.
出处
《铁道建筑技术》
2016年第6期32-35,55,共5页
Railway Construction Technology
关键词
桩板结构
膨胀性围岩
隧道仰拱
施工技术
pile-plank structure
swelling surrounding rock
tunnel inverted arch
construction technology
