Method used for reforming pile in underground space into pillar

A technology for underground space and piling, applied in building construction, building maintenance, construction, etc., can solve problems such as difficult changes and renovations, and achieve the effects of reducing material consumption, saving labor input, and speeding up construction progress

Inactive Publication Date: 2014-03-26
GEOTECHN TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Since piles and columns have two completely different functional settings, it has been difficult to change and modify

Method used

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  • Method used for reforming pile in underground space into pillar
  • Method used for reforming pile in underground space into pillar

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Embodiment Construction

[0022] Further description will be given below in conjunction with the embodiments shown in the accompanying drawings.

[0023] During the excavation process for the new underground space (such as underground parking lot, basement, etc.) under the existing building, the piles buried in the soil 5 are gradually exposed, and the exposed parts of these piles need to be completely removed according to the conventional practice . However, building an underground space requires a lot of columns for support. In order to speed up the construction progress and reduce the construction cost, the inventor decided to transform the piles in the underground space into columns; the specific methods can be divided into the following two methods;

[0024] figure 1 In the shown embodiment, the transformation steps are as follows:

[0025] 1) Clean the exposed surface of the pile 1 first, and remove the loose pumice and dust on the exposed surface of the pile.

[0026] 2) Select two semi-annu...

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Abstract

The invention relates to a method used for reforming a pile in an underground space into a pillar and aims to provide the method which enables the purposes of being high in reforming speed, easy to construct, fast in forming and good in effect to be achieved. According to the technical scheme, the method includes the following steps that firstly, the upper surface of the pile is cleaned up; secondly, two semicircular-ring-shaped steel cylinders matched with the diameter of the pile are selected, and the steel cylinders are wrapped on the upper surface of the pile so that the pile can be located in the center of the two semicircular-ring-shaped steel cylinders; thirdly, electric welding is carried out on the combined portions between the two semicircular-ring-shaped steel cylinders so that the two semicircular-ring-shaped steel cylinders are mutually welded into a whole and firmly wrap the pile; fourthly, after the welded portions are cooled, the gaps between the pile and the two semicircular-ring-shaped steel cylinders are filled with concrete or grouting materials, and then the pillar is formed.

Description

technical field [0001] The invention relates to the field of construction, in particular to a method for transforming piles in an underground space into columns. Background technique [0002] In the conventional construction field, the definition of a column is a vertical straight bar that mainly bears axial pressure and is used to support the superstructure and transmit the load to the foundation; the definition of a pile is to bear the pile top load by frictional resistance and end resistance, And the load it bears is transmitted to the vertical rod in the foundation soil (or bedrock). Since piles and columns have two completely different functional settings, it has been difficult to change and modify. [0003] However, in the process of building a new underground space under the existing building, due to the needs of design and bearing capacity, the piles must be transformed into columns to meet the design standards of the underground space. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G23/02
Inventor 潘金龙
Owner GEOTECHN TECH
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