摘要
文中基于北京门头沟区某邻近轻轨高架的基坑支护工程,综合考虑工程造价、施工进度、地层情况、开挖深度及周边环境条件,整体采用桩锚支护结构,其中,邻近轻轨高架区段采用双排桩+二道锚杆支护形式。结果表明,该基坑支护设计方案能减小地铁结构变形,确保基坑土方开挖安全,既满足了工期要求,降低了造价,又有效保护了轻轨高架及周边环境的安全。
Based on the foundation pit supporting proej ct of a light rail viaduct in Mentougou District,Beijing,considering the project cost,construction schedule,stratum condition,excavation depth ands urrounding environment conditions,the pile-anchor supportings tructure is adopted as a whole,the adjacent viaduct section of the light aril adopts the form of double-row piles and two bolts.The results show that the design scheme of foundation pit support can effectively reduce the deformation of subway structure,ensure the safety of ofundation pit excavation,meet the requirements of construction period and reduce the cost,also effectively protect the safety of the elevated light rail and the surrounding environment.
作者
张旭
Zhang Xu(China Aviation Planning and Design Research Institute Co.Ltd.,Beijing 100120)
出处
《江西建材》
2023年第3期345-346,349,共3页
Jiangxi Building Materials
关键词
基坑支护
轻轨高架
土方开挖
结构变形
Foundation pit support
Light rail elevated
Earth excavation
Structural deformation
