Single-sleeve auxiliary pile pulling equipment applied to building structure pile foundation

Abstract

The invention provides single-sleeve auxiliary pile pulling equipment applied to a building structure pile foundation. The equipment comprises a whole set of vibration hammer equipment, a hydraulic fixture and a cylindrical sleeve for auxiliary pile pulling; projections are fixedly arranged on the inner and outer walls of the sleeve; and multiple sets of elliptical holes are formed in the wall ofthe sleeve. Based on a traditional pile pulling technology and method, aiming at the defects, the single-sleeve auxiliary pile pulling equipment applied to the building structure pile foundation is developed; and the core technology is a movable pin capable of rotating around a rotating shaft at the bottom of the sleeve. The single-sleeve auxiliary pile pulling equipment applied to the building structure pile foundation can pull various types of piles in the sleeve sinking and pile pulling process with environmental protection and high efficiency, and is lower in cost and free of potential safety hazards.

Description

technical field [0001] The invention belongs to the technical field of building construction equipment, and relates to pile foundations of building structures, in particular to equipment for pulling out piles, mainly used for pulling out old piles in the original foundation, including driven piles, cast-in-place piles, and static pressure piles. The utility model relates to an equal pile type, specifically a single-sleeve auxiliary pile pulling device applied to pile foundations of building structures. Background technique [0002] Since the beginning of the new century, with the deepening of the urbanization process, the land for urban construction has become more and more scarce. Therefore, it has become an inevitable trend to speed up the renovation and demolition of dilapidated buildings and other buildings in the old city and to expand the development and utilization of underground space. trend. In the reconstruction and foundation construction of buildings such as dil...

AI Technical Summary

Problems solved by technology

The punching method is noisy and has a long construction period; the strong lifting method is easy to pull out, and the old pile cannot be completely pulled out, leaving a safety hazard for subsequent construction; the equipment of the full-rotary drilling rig pulling method is expensive and the construction efficiency is low; although the construction cost of the flushing method is Low and high efficiency, but due to a large amount of mud pollution, it is easy to make the old pile holes unable to be backfilled and compacted, which affects subsequent development and utilization

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