Disclosed is a
polymer material grouted wedge precast
pile technique. Grouting holes are reserved on the lateral wall of a prestressed wedged
pipe pile, a
polymer material is subjected to
pressure grouting on the
pile side and the pile ends, and accordingly
bearing capacity of the pile side and the pile ends is improved. The
polymer material for grouting is excellent in water proofing, and is small in size after swelled, the polymer material is quick in construction, strength improvement is quick, the
dead weight of the polymer material is light, volume expansibility of the polymer material is high, and the problems of coagulation of
cement slurry in a grouting
pipe and the like are avoided. Compared with traditional prestressed
pipe pile, the prestressed wedged pipe pile subjected to
pressure grouting has improved
bearing capacity of the pile side and the pile ends. By means of wedged angles, the form of pile-soil face contact is improved, and side friction of the pile is increased. By the polymer grouting technique compared with the traditional
cement slurry grouting technical methods, expenditure and construction period can be reduced greatly, environment protection and
energy conservation are benefited, and the quality is easier to control. The technique is simple in construction process, high in
operability, convenient for
quality control, evident in economic benefit and effective in soft soil foundation treatment.