Construction method and structure for mounting reverse-construction steel pipe column in rotary drilled pile hole

Abstract

The invention discloses a construction method and structure for mounting a reverse-construction steel pipe column in a rotary drilled pile hole. The construction method comprises the steps as follows: 1, drilling the pile hole; 2, mounting a reinforced concrete bearing platform; 3, hoisting a pile foundation reinforcement cage; 4, hoisting the steel pipe column; 5, mounting a concrete pouring platform; 6, cleaning the pile hole; 7, adjusting the elevation, the center position and the perpendicularity of the steel pipe column; 8, completing pouring of concrete in a pile foundation and the steel pipe column. The method is simple and practical, the construction period can be shortened, the project cost can be reduced, and the problem that the construction period is longer due to the fact that the pile foundation and the steel pipe column are constructed separately is solved. By the aid of the construction method and structure, the construction period is shortened while the project quality is guaranteed. The construction method and structure have the good social benefit and the good economic benefit. According to the construction method and structure, the high-efficiency construction requirement is met, the construction cost is saved, the project cost is reduced, the problem of continuous construction of rotary drilling and the steel pipe column in basement reverse construction is effectively solved, and the construction method and structure have the wide practicability and the popularization performance.

Description

Technical field [0001] The present invention involves a construction method and structure of installing inverse steel pipe columns in the excavation pile hole, which belongs to the field of civil construction technology. Background technique [0002] With the continuous development of my country's construction industry, various types of construction types have continued to emerge, and there are more and more oversized and deep projects. In the construction of conventional engineering inverse methods, rotating piles and inverse steel pipe columns are divided into secondary construction. The steel pipe positioner is reserved during the pile construction, and then the steel pipe column construction is carried out. The conventional engineering reverse method has a long construction time and a large waste, which cannot meet the requirements of energy saving and emission reduction. Invention content [0003] The purpose of the present invention is to provide a construction method and ...

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Problems solved by technology

[0002]With the continuous development of my country's construction industry, various building types are emerging, and there are more and more super-large and super-deep projects. And the upside-down steel pipe column is divided into two constructions. During the construction of the rotary excavation pile, the steel pipe positioner is reserved, and then the construction of the steel pipe column is carried out. The conventional engineering upside-down method takes a long time and wastes a lot, and cannot meet the requirements of energy saving and emission reduction. requirements

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