High-rise building foundation pile foundation construction method

Abstract

The invention provides a high-rise building foundation pile foundation construction method. The high-rise building foundation pile foundation construction method uses high-rise building foundation pile foundation construction equipment, and the high-rise building foundation pile foundation construction equipment comprises a limiting device and a butt joint device. According to the high-rise building foundation pile foundation construction method, a pile casing needs to be buried before drilling of a cast-in-situ bored pile to prevent hole wall collapse during drilling, the following problems, still existing in the pile casing burying process, that, a, hole digging is carried out on the ground through a drilling machine, then the pile casing is placed in the hole through a crane, effective and vertical positioning is not carried out on the pile casing in the process, the pile casing cannot be ensured to be in a vertical state, so that the positioning of the drilling machine during subsequent drilling is influenced, and a drilled formed hole is inclined; and b, most of the embedded pile casing is a round pile casing with higher height, so that the pile casing is difficult to vertically position when being buried, and the pile casing is often installed to be inclined can be solved.

Description

technical field [0001] The invention relates to the technical field of buildings, in particular to a pile foundation construction method for high-rise building foundations. Background technique [0002] A deep foundation composed of piles and a pile cap connected to the top of the pile is referred to as a cap or a single pile foundation connected by a column and a pile foundation is referred to as a pile foundation. If the pile body is completely buried in the soil and the bottom surface of the cap is in contact with the soil, it is called a low cap pile foundation; if the upper part of the pile body is exposed to the ground and the bottom of the cap is above the ground, it is called a high cap pile foundation. , Pile foundations are widely used. Pile foundations can be divided into prefabricated piles and cast-in-situ piles according to the construction method. Among them, cast-in-place piles refer to forming pile holes in the foundation soil by means of mechanical drillin...

AI Technical Summary

Problems solved by technology

[0003] At present, the bored pile needs to bury the casing before drilling to prevent the hole wall from collapsing during drilling, but the following problems still exist in the casing during the burying process: a. Dig the hole on the ground by a drilling rig, and then insert The casing is placed in the hole by a crane, but the casing is not effectively positioned vertically during this process, and the casing cannot be guaranteed to be in a vertical state, which affects the positioning of the drilling machine during subsequent drilling, resulting in holes that are drilled. Tilting phenomenon; b. Most of the buried casings are circular casings with a high height, which makes it difficult to vertically locate the casing when it is buried, and there is often a skewed installation of the casing

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