Obstructing pulling method pile digging construction device and method

Abstract

The invention relates to an obstructing pulling method pile digging construction device and method. The device comprises reinforcement cage main ribs and reinforcement cage stirrups, the reinforcement cage main ribs are equally distributed in a surrounding manner and are annularly, spirally, sequentially and fixedly wound with the reinforcement cage stirrups to form a reinforcement cage, the reinforcement cage is placed into a bored pile formed hole and is provided with reinforcement cage protection layer devices, and a concrete pre-separation device is arranged at the top end of the reinforcement cage; the reinforcement cage protection layer devices are arranged in the length direction of the reinforcement cage every 3 m, and protection layers are arranged on ach reinforcement cage protection layer device every 90 degrees along the circumference; the concrete pre-separation device is composed of vertical reinforcement isolation sleeves, annular protection layer isolation rings and filler, the reinforcement cage main ribs, located at the pile top, of the reinforcement cage are provided with the vertical reinforcement isolation sleeves one by one, and the two ends are closed; and the annular protection layer isolation rings are installed at the bottoms of the vertical reinforcement isolation sleeves. The obstructing pulling method pile digging construction device and method have the beneficial effects of saving labor and being rapid and environment-friendly.

Description

technical field [0001] The invention belongs to the technical field of construction engineering foundations and foundation construction, and in particular relates to a construction device and method for pile-cutting piles by the barrier opening and pulling method, which are suitable for the pile head concrete of the pile top part of the bored pile higher than the designed pile top. Background technique [0002] According to the existing bored pile construction technology, the pile head concrete is condensed with the pile head steel bar, so the current pile head chisel removal method is to separate the steel bar and concrete to achieve the purpose of chiseling the pile to meet the design pile top elevation. Require. It can be divided into manual rib stripping and chisel piles and hydraulic mechanical crushing chisel piles. Artificial rib stripping and chiseling has high work intensity, low efficiency, noise, dust and other environmental pollution; hydraulic mechanical crushi...

AI Technical Summary

Problems solved by technology

Artificial rib stripping and chiseling has high work intensity, low efficiency, noise, dust and other environmental pollution; hydraulic mechanical crushing and chiseling has high efficiency, but the cost is high, and environmental pollution such as noise and dust cannot be avoided

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