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Construction method for connecting bearing platform with pile foundation through connecting device

A technology of connecting device and construction method, applied in infrastructure engineering, construction and other directions, can solve the problems of reducing construction time, difficult docking of reserved holes between piles and caps, position deviation, etc., so as to reduce construction time and avoid damage to underground pipelines. system effect

Active Publication Date: 2019-05-24
广州市市政集团设计院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the deficiencies of the prior art, the present invention provides a construction method for connecting the cap and the pile foundation through a connecting device, which effectively avoids complex underground pipelines by using small-diameter piles, and avoids damage to the underground pipeline system. The connection between the cap and the pile foundation using the connection conversion device can solve the problem of difficult docking between the pile and the reserved hole of the cap due to the position deviation caused by the construction of the prefabricated pile. It only needs to make the conversion device according to the size of the cap, and there is no need to consider The location of the prefabricated piles is conducive to the standardized mass production of the caps. The caps are pre-fabricated in the factory. After the caps and pile foundations are connected by a replacement device, the bridge piers can be installed immediately without waiting for the age of the concrete. , greatly reducing construction time

Method used

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  • Construction method for connecting bearing platform with pile foundation through connecting device
  • Construction method for connecting bearing platform with pile foundation through connecting device
  • Construction method for connecting bearing platform with pile foundation through connecting device

Examples

Experimental program
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Effect test

Embodiment 1

[0024] Embodiment 1, a kind of construction method that carries out cap and pile foundation connection by connecting device, comprises the following steps:

[0025] S1. Excavate the foundation pit by mechanical construction. The depth of the foundation pit depends on the height of the cap. The depth of the foundation pit is equal to the height of the cap. The surface of the cushion layer of the pit is laid with a steel plate frame prefabricated according to the length and width of the cap, and the steel pipes connected to the cap are welded at the four corners of the steel frame;

[0026] S2, using the static pressure method to insert and drive prefabricated piles. The prefabricated piles are steel pipe piles and small-diameter piles. When inserting and driving steel pipe piles, the insertion and driving of piles is determined according to the situation of the previous address exploration, the distribution position of the pipeline and the load of the overpass. For the position...

Embodiment 2

[0030] Embodiment 2, a kind of construction method that carries out cap and pile foundation connection by connecting device, comprises the following steps:

[0031] S1. Excavate the foundation pit by mechanical construction. The depth of the foundation pit depends on the height of the cap. The depth of the foundation pit is smaller than the height of the cap. The surface of the cushion layer of the pit is laid with a steel plate frame prefabricated according to the length and width of the cap, and the steel pipes connected to the cap are welded at the four corners of the steel frame;

[0032] S2, using the vibration method to insert and drive prefabricated piles. The prefabricated piles are steel pipe piles and small-diameter piles. The location of the prefabricated steel pipe piles is driven into the ground by machinery, and the prefabricated piles reserve a certain length of 800mm on the ground;

[0033] S3. After placing the prefabricated steel plate outer frame welded wit...

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Abstract

The invention provides a construction method for connecting a bearing platform with a pile foundation through a connecting device. The construction method includes following steps: S1, excavating a foundation pit, paving a steel plate with piling holes reserved, and welding positioning piles at four end corners of the steel plate; S2, insert-driving a prefabricated pile, pouring in-pile concrete,and welding the prefabricated pile with the steel plate; S3, according to positions for insert-driving the prefabricated pile, making a prefabricated bearing platform in a factory, wherein grouting holes, grout vents and a sleeve are arranged on the prefabricated bearing platform, and positioning holes are reserved at positions, corresponding to the steel plate positioning piles, of four end corners of the prefabricated bearing platform; S4, according to size of the designed bearing platform, making the prefabricated bearing platform in the factory; S5, mounting the prefabricated bearing platform on site. Docking positions among components are comparatively accurate, and the bearing platform is prefabricated in the factory, so that an on-site construction link is omitted, and constructiontime is reduced greatly.

Description

technical field [0001] The invention relates to the field of building construction, in particular to a construction method for connecting a cap and a pile foundation through a connecting device. Background technique [0002] Prefabricated structure (Explanation: Prefabricated structure is to prefabricate various components of the project in the factory, and assemble and connect on site during construction, without the need for on-site cement pouring process, shortening construction time and ensuring project quality) and traditional cast-in-place structure ( Explanation: It is a traditional construction plan, which requires on-site production of formwork, steel bars and other processes for cement pouring, long construction time and large work surface), compared with the focus of its quality control is the treatment of the connection nodes of each stressed component. At present, the connections between superstructures and between superstructures and pier columns in municipal b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D27/14
Inventor 袁月芳施国良刘添俊周立权温心怡
Owner 广州市市政集团设计院有限公司