Bored pile construction method for reinforcing cage framework layered installation

A technology of bored piles and construction methods, applied in sheet pile walls, infrastructure engineering, construction, etc., can solve the problems of collision hole wall, easy shaking, inconvenience for construction personnel, etc., to avoid collision hole wall, avoid deformation, Good hole cleaning effect

Inactive Publication Date: 2014-03-05
NINGBO SHENGHONG CONSTR ENG
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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

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  • Bored pile construction method for reinforcing cage framework layered installation

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[0033] The construction method includes the following steps:

[0034] (A) Construction preparation:

[0035] Arrange the construction site and build the construction platform according to the construction personnel, construction machinery and equipment, materials and materials in the construction organization design.

[0036] (B) Stake out position:

[0037] According to the layout of the axis and piles in the designed drawings, the total station is used to measure and set the line, and then a control network is established on the construction site, and then the control points and leveling points are fixed with cement mortar, and then the theodolite is used for piles according to the control network. Position accurate lofting, nail a wooden pile at the center of the pile, and nail an iron nail on the top of the pile for accurate control and precise positioning, and set up a protective pile in the form of a cross pile.

[0038] (C) Production and pre-embedding of protective tube:

[0039...

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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...

Claims

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Application Information

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IPC IPC(8): E02D5/38
Inventor 杨宝风卢大庆
Owner NINGBO SHENGHONG CONSTR ENG
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