Spiral casing pile pulling equipment and spiral casing pile pulling system

Abstract

The invention provides spiral casing pile pulling equipment and a spiral casing pile pulling system, and relates to the field of construction machines. The spiral casing pile pulling system comprises slurry sediment circulating equipment and the spiral casing pile pulling equipment. The spiral casing pile pulling equipment comprises a pile excavation machine, an arm support, a pore forming device, a power device and a mud circulating device; the pore forming device comprises a locating sleeve, a casing and a spiral diversion blade; the locating sleeve is fixedly connected with one end, close to a hydraulic travelling base, of the arm support; one end of the casing is detachably connected with the power device, and communicates with one end, stretching into the power device, of the mud circulating device; the other end of the casing penetrates through the locating sleeve; and the spiral diversion blade is fixed at the peripheral surface of the casing spirally. Compared with the prior art, the spiral casing pile pulling equipment is simple in structure, convenient to use and high in pile pulling efficiency, has the excellent pile pulling effect and can rapidly complete isolation movement.

Description

technical field [0001] The invention relates to the field of construction machinery, in particular to a spiral casing pile pulling device and a spiral casing pile pulling system. Background technique [0002] In the field of construction, it is often necessary to pull out the pipe piles that have been driven into the ground. According to the current similar construction conditions at home and abroad, pile pulling is mainly used for the removal of old piles in large and medium-sized buildings in urban construction and subway tunnels. The most important thing in pile pulling is to eliminate or reduce the frictional resistance of the pile side. The existing pile pulling methods are usually through (1) cutting the soil around the pile to pull the pile, (2) vibrating double casing method and (3) full set Pipe vibration assisted pile extraction method is used to pull out pipe piles. [0003] The inventor found that among the three existing schemes, the first scheme is more advanc...

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Problems solved by technology

[0003] The inventor found that among the three existing schemes, the first scheme is more advanced in technology and has a high success rate of pile pulling, but the construction equipment is generally imported from abroad, the equipment is expensive, and the construction cost is relatively high; the second scheme The principle of pile pulling is relatively simple, and the construction speed is fast. At present, there are professional foundation companies in China that have applied for patented technology and provided pile pulling and obstacle removal construction services, but the construction cost is relatively high; the third option requires less equipment and less investment. The construction cost is much lower than the previous two schemes, but the possibility of pulling out is higher, and the success rate of pile pulling is lower

The pile pulling effect of the existing pile pulling equipment is not particularly ideal

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