A centering positioning device for connecting piles

Abstract

The invention provides a centering positioning device for pile splicing, applies to prestressed concrete pipe piles and aims at solving pile splicing problems of the prestressed concrete pipe piles inactual use. Datum platforms are arranged firstly and adjusted by instruments such as a leveling rod and the like, and levelness of the datum platforms is guaranteed; then a lower pipe pile is fixed by a fixator I and fixed at positioning screw holes of the corresponding datum platform, screw lifters are mounted, levelness of an upper pipe pile is adjusted by combination of lifting platforms and fixators II connected with the upper pipe pile, the datum platforms are then connected with a centering positioner through inclined struts, finally, position of the upper pipe pile is adjusted precisely through the centering positioner, complete centering connection of the upper pipe pile and the lower pipe pile is realized, vertical perpendicularity is calibrated, and the problems that upper and lower pipe piles in splicing of prefabricated pipe piles are not aligned easily and whole pile body deflects after pile sinking are solved effectively.

Description

technical field [0001] The invention belongs to the technical field of building pile foundation engineering construction, and in particular relates to a centering and positioning device for connecting piles. Background technique [0002] Prestressed concrete pipe piles have been widely used in construction projects because of their high single pile bearing capacity, high pile quality, and time-saving advantages. Prestressed concrete pipe piles are all factory-produced, limited by equipment modulus and production capacity, the length of a single section of finished pipe piles is generally 7-15m. For special projects, such as the tower foundation of transmission lines in mountainous areas, if large-diameter single pile foundations are used, the length of single-section pipe piles needs to be further reduced to facilitate the transportation and construction of pipe piles in mountainous areas. During the construction of prestressed concrete pipe piles, there is inevitably the p...

AI Technical Summary

Problems solved by technology

During the construction of prestressed concrete pipe piles, there is inevitably the problem of pile connection. During the pile connection process, it is necessary to ensure that the coaxial deviation of the two piles is within the allowable range of the construction specification. The existing pile connection technology is to sink the pile to the distance After a distance of about 1m from the ground, lift the upper pipe pile until its bottom is aligned with the top of the lower pipe pile, and finally connect the piles. With the help of measuring instruments and manual adjustment, the construction efficiency is low and the quality of the pile sinking cannot be guaranteed. In view of the actual engineering needs and the limitations of the existing pile connection methods, it is necessary to develop a centered positioning of the pile connection that matches the prefabricated pipe pile. The device is used to complete the docking work of pile joints, improve the quality of pile connection, and then ensure the overall bearing performance of pipe piles

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