With the development of bored pile towards super-hole depth and super-diameter,the difficulty of construction control also increases significantly.Traditional construction techniques are highly dependent on manual collection and recording of construction parameters,which is difficult to meet the requirements of fine construction control.In order to ensure the construction quality of ultra-long and large-diameter piles,based on the pile foundation construction of the north main tower of Shuangliu Yangtze River Bridge,the key construction parameters and collection methods for the boreholing and pile-forming of bored piles were analyzed,and an automatic monitoring device was developed and applied for the key parameters of boreholing and pile-forming processes.The research results show that using digital technology can effectively reduce the manual collection workload in the construction process and improve the fine control level of bored pile construction,which can be used as a reference for similar projects.
关键词
超长大直径桩/钻孔灌注桩/智能传感/数字化施工
Key words
ultra-long and large-diameter pile/bored pile/intelligent sensing/digital construction