摘要
高层建筑地下室、地下车库等大型地下结构设计时大多采用抗浮锚杆措施。结合某砂卵石地层的基础筏板施工案例,介绍了气旋式锚杆钻机的施工工艺。实践证明,该工艺下抗浮锚杆的抗拔力试验表现良好,满足图纸及设计要求,且施工速度、施工质量均有保证,取得了良好的社会及经济效益。
Anti-floating anchor bolts are mostly used in the design of large underground structures such as basement and underground garage of high-rise buildings.Combined with the construction case of foundation raft in a sandy pebble stratum,the construction technology of cyclone jumbolter is introduced.The practice proves that the pullout resistance test of anti-floating anchor rod under this process performs well,meets the drawing and design requirements,and the construction speed and construction quality are guaranteed,which has achieved good social and economic benefits.
作者
张立佳
姜兆恒
陈桂森
ZHANG Lijia;JIANG Zhaoheng;CHEN Guisen(Beijing Branch of China Railway Construction Engineering Group Beijing Branch,Beijing 100070,China)
出处
《建筑施工》
2021年第10期2023-2025,共3页
Building Construction
关键词
抗浮锚杆
地下结构
气旋式锚杆钻机
防水
anti-floating anchor rod
underground structure
cyclone jumbolter
waterproof
