Abstract：
Long spiral pressure filling pile due to its characteristics of obvious advantages has been widely used in all kinds of building foundation construction, but because soft-soil district soil conditions less prone to settlement building, engineering design of pile length often need to stretch into relatively stable bearing layer can meet the requirements of the bearing capacity of soil, thus lead to pile length more than regular length. Soft-soil district super-long construction technology of bored pile is generally regular long screw pile is more demanding, prone to pile breaking process control, reducing, blocking pipe, steel reinforcement cage are prone to problems such as deformation and reinforcing cage into difficulties, causes more to the pile construction quality and safety hidden trouble. Therefore, key construction links and techniques must be analyzed in the spiral pressure filling pile of jingcheng building is studied in this paper, and the key technologies of drilling, concrete pressure filling and rebar vibration of reinforcement cage are studied in the soft-soil conditions.
YAO Yang-guang,WENG Bang-zheng,WANG Wen-yuan et al. Construction Technology of Extra Long Spiral Pressure Irrigation Pile in Soft-Soil Area[J]. Architecture Technology, 2018, 49(10): 1038-.
