Bored pile construction method for reinforcing cage framework layered installation

Abstract

The invention discloses a bored pile construction method for reinforcing cage framework layered installation. The bored pile construction method for reinforcing cage framework layered installation comprises the steps of (a) making preparation for construction, (b) setting out a pile position, (c) manufacturing a pile casing and pre-burying the pile casing, (d) drilling a bore, (e) reinforcing a dado, (f) cleaning the bore for the first time, (g) manufacturing reinforcing cage frameworks and installing the reinforcing cage frameworks in a layered mode, (h) placing a guide tube, (i) cleaning the bore for the second time, (j) pouring concrete, (k) recycling the pile casing and (l) backfilling the pile bore. According to the bored pile construction method for reinforcing cage framework layered installation, the reinforcing cage frameworks are placed in the bore in a layered mode, aligned one by one and welded, so that a reinforcing cage is installed, and a traditional method that the reinforcing cage is directly installed is replaced; the reinforcing cage can be stably placed in the bore, and the reinforcing cage is prevented from colliding against the wall of the bore and prevented from deforming; in addition, the reinforcing cage can be accurately located to the center of a bore site, and the reinforcing cage is prevented from floating or sinking in the process of concrete pouring. Besides, by the adoption of the bored pile construction method for reinforcing cage framework layered installation, the speed is high, a construction period is short, and the quite high scientific performance and the feasibility are achieved.

Description

technical field [0001] The invention belongs to the technical field of foundation piling methods, and in particular relates to a construction method for bored cast-in-situ piles with layered installation of reinforcement cage skeletons. Background technique [0002] With the continuous development of the market economy and the increasing perfection of the construction market, tree root piles are widely used in foundation reinforcement projects due to their wide applicability, flexible structure and simple construction. Due to the simple construction of tree root piles and low mechanical requirements, There are many engineering quality problems, so at present, the bored pile construction method is generally used for foundation piling. At present, the construction method of bored piles adopts the step of lowering the reinforcement cage after drilling and clearing the hole, hoisting the entire fabricated reinforcement cage and putting it into the hole, but the following problem...

AI Technical Summary

Problems solved by technology

At present, the construction method of bored piles adopts the step of lowering the reinforcement cage after drilling and clearing the hole, hoisting the entire fabricated reinforcement cage and putting it into the hole, but the following problems will be encountered: the reinforcement cage is too large and needs to be lifted to a certain extent. Only a high boom can lift the steel cage, which brings inconvenience to the construction workers; during the process of lowering the steel cage, due to its heavy weight, it is easy to shake and collide with the hole wall, causing the hole to collapse; when the steel cage is lowered, it is not easy to accurately locate the hole center, it is easy to cause floating or sinking during concrete pouring, which affects the quality of the project

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