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Construction technology for high-jet grouting body built-in prestressed concrete pile

A construction technology and prestressing technology, applied in sheet pile walls, foundation structure engineering, buildings, etc., can solve the problems of inconspicuous reinforcement effect and poor bearing capacity, so as to reduce project cost, improve pile side resistance, and adaptability wide effect

Pending Publication Date: 2021-08-20
隋付仁
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The reinforcement effect on the external resistance and pile end resistance of the pile is not obvious, and the bearing capacity is not good

Method used

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  • Construction technology for high-jet grouting body built-in prestressed concrete pile

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Experimental program
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Effect test

Embodiment

[0042] Please refer to figure 1 , the present embodiment provides a construction process of prestressed concrete piles with built-in high-spray grout, which includes the following steps:

[0043] The embodiment of the present application provides a construction process of prestressed concrete piles with built-in high injection grout, including the following steps:

[0044] S100, preparing before construction, selecting a construction site, measuring and setting out pile positions and marking them, to obtain marked pile positions;

[0045] S200, inject high-jet grout, use high-pressure rotary grouting piles to sink, cut and mix downwards in the marked pile position according to the first preset depth and preset soil layer conditions, and spray cement grout at high pressure to form cement grout;

[0046] S300, sinking piles by hammering, adopts the method of static pressure or hammering prestressed concrete piles, and presses the prestressed concrete piles into the preset eleva...

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Abstract

The invention provides a construction technology for a high-jet grouting body built-in prestressed concrete pile, and relates to the technical field of building construction. The technology comprises the following steps that a construction site is selected, staking-out survey is conducted on a pile position, marking is conducted, and a marked pile position is obtained; a high-pressure jet grouting pile is adopted for sinking, cutting and stirring downwards in the marked pile position according to the first preset depth and the preset soil layer condition, cement slurry is sprayed at high pressure, and cement slurry is formed; and the prestressed concrete pile is pressed into the preset elevation of the marked pile position in a static pressure or prestressed concrete pile hammering mode. According to the construction technology for the high-jet grouting body built-in prestressed concrete pile, the outer side resistance and the pile end resistance of the pile can be reinforced through process improvement by utilizing the characteristic of high strength of the prestressed concrete pile, so that the bearing capacity of the pile can play a more obvious role; the construction technology has the advantages that the construction cost is reduced, the dust control standard is met, the construction period is shortened, and the quality is reliable.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a construction process of prestressed concrete piles built in high-spray grout. Background technique [0002] With the adjustment of national industrial policies, it is imminent for pile foundation engineering construction technology to adapt to the development needs of the new situation. Prestressed concrete piles have played a significant role in the field of engineering construction. High-strength and large-diameter prestressed concrete piles came into being. In order to further improve To improve the bearing capacity of prestressed concrete piles, improving construction technology is an effective construction method. [0003] Most of the concrete piles in the prior art are directly driven by ordinary pile drivers. After the pile driving is completed, the construction of the concrete piles is realized through subsequent processes such as hammering pile sinking an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/50E02D5/62E02D5/46
CPCE02D5/50E02D5/62E02D5/46
Inventor 隋付仁
Owner 隋付仁
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