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Manual positioning construction method of permanent steel column

A steel column and artificial technology, applied in the direction of columns, pier columns, pillars, etc., can solve the problems of wasting manpower and material resources, difficulty in guaranteeing construction quality, increasing construction period, etc., achieving significant economic benefits, easy construction quality, and improved construction efficiency Effect

Inactive Publication Date: 2018-12-07
CHINA POWER CONSTR SOUTHERN CONSTR INVESTMENT CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The cover-excavation method is more complex and more difficult than the traditional open-cut method, and the construction is more difficult. Permanent steel pipe columns play an important role in the station structure of the cover-excavation method. However, the traditional construction method is difficult to control the positioning and the construction quality. Difficult to guarantee; In addition, this construction method has caused many construction procedures, greatly increased the construction period, and wasted a lot of human and material resources

Method used

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  • Manual positioning construction method of permanent steel column
  • Manual positioning construction method of permanent steel column
  • Manual positioning construction method of permanent steel column

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Embodiment Construction

[0039] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0040] like figure 1 As shown, a construction method for manual positioning of permanent steel columns includes the following steps:

[0041] 1. Construction preparation

[0042] The construction site shall be leveled and solid, and the rotary drilling rig shall be placed with a steel plate to prevent the drilling rig from tilting during the drilling process, which may cause the verticality of the hole to be unsatisfactory;

[0043] 2. Measure and pay off

[0044] Use the total station to measure the position of the pile center, drive the wooden pile to the fixed point, and lead it around by the "cross method" to make the pile guard point.

[0045] 3. Buried orifice protector

[0046] According to the design of the center line of the pile position, the hole protection tube is embedded, and the deviation between the center of the protection tube and ...

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Abstract

The invention discloses a manual positioning construction method of a permanent steel column. The manual positioning construction method comprises the following steps of preparing for construction, surveying and setting out, embedding a hole opening pile casing, drilling a hole, finishing the hole, cleaning the hole, lowering a guide pipe and pouring pile foundation concrete, pumping and drainingslurry, chiseling away concrete on a base of a locator, installing the locator, hoisting a steel pipe column, positioning the upper end of the steel pipe column, pouring concrete to a build-in portion, backfilling coarse sand and pulling out a pile casing, and pouring concrete into the steel pipe column. According to the manual positioning construction method, the perfect combination of bases andcolumn bodies of piles with different diameters is realized through two pouring construction processes by combining manual auxiliary positioning, the positioning accuracy is improved, and the construction quality is ensured.

Description

technical field [0001] The invention relates to the field of building construction, in particular to a construction method for manual positioning of permanent steel columns. Background technique [0002] When building a subway in a city, there are many projects under construction or existing buildings (structures) nearby, and the surrounding environment and geological conditions are relatively complex. In order to ensure the safety of the surrounding projects or existing buildings (structures) and the project itself, the subway station adopts the cover and excavation reverse construction method, and the station structural column adopts the permanent steel pipe column, which is formed with the main structure of the station at one time. [0003] Compared with the traditional cut-and-cover construction method, the cover-and-cut reverse method is more complicated and more difficult to construct. Permanent steel pipe columns play an important role in the station structure of cove...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04C3/34E04G21/14E04G21/18E02D5/38
CPCE02D5/38E04C3/34E04G21/14E04G21/1841
Inventor 王成何凡丁锐熊皓李建设朱贵超刘雪峰韦振西房俊凯陈晓华
Owner CHINA POWER CONSTR SOUTHERN CONSTR INVESTMENT CO LTD
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