Double-channel steel auxiliary pile pulling equipment applied to building structure pile foundation

Abstract

The invention provides double-channel steel auxiliary pile pulling equipment applied to a building structure pile foundation. The double-channel steel auxiliary pile pulling equipment comprises a whole set of vibratory hammer equipment, a hydraulic clamp, and double-channel steel for assisting in pile pulling. Protrusions are fixedly arranged on the inner wall and the outer wall of the double-channel steel, and bolt holes are formed in a flange of single-channel steel at intervals. The double-channel steel is connected through bolts. On the basis of the existing pile pulling technology and method, the double-channel steel auxiliary pile pulling equipment applied to the building structure pile foundation is developed aiming at the defects, and the core technology is a movable pin capable ofrotating around a rotary shaft at the bottom of the channel steel. According to the double-channel steel auxiliary pile pulling equipment applied to the building structure pile foundation, various piles can be efficiently pulled out in an environment-friendly manner in the channel steel sinking and pile pulling processes, cost is low, and potential safety hazards are avoided.

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 equal pile type is specifically a kind of double channel steel auxiliary pile pulling equipment 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 dilapidated...

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

Images