Connecting method of foundation pit precast pile and cast-in-situ superposed lining wall through stirrups

A connection method and prefabricated pile technology, applied in sheet pile walls, foundation structure engineering, construction, etc., can solve the problems affecting the pile quality of prefabricated piles, affecting the impermeability of walls, affecting the quality of connecting bars, etc., to improve the overall Performance and stability, saving engineering costs, cost saving effects

Active Publication Date: 2015-11-11
JINAN RAILWAY TRANSPORT GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. For the case of pre-embedded connectors on the prefabricated piles, the stirrups connecting the piles and the wall, when the size of the prefabricated piles is small, too many connectors will affect the pile quality of the prefabricated piles, and the embedded parts The position will become the weak point of the anti-seepage of the wall, and ...

Method used

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  • Connecting method of foundation pit precast pile and cast-in-situ superposed lining wall through stirrups
  • Connecting method of foundation pit precast pile and cast-in-situ superposed lining wall through stirrups
  • Connecting method of foundation pit precast pile and cast-in-situ superposed lining wall through stirrups

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Embodiment Construction

[0042] A method for connecting a small-sized prefabricated pile 1 to a cast-in-place wall 9 includes two parts: the manufacturing process of the prefabricated pile 1 and the connection with the cast-in-place wall 9 . The prefabricated piles are arranged according to the specifications for the outermost stirrup 3 of the precast pile, the vertical stirrup 5 of the prefabricated pile, the horizontal reinforcement 6 of the precast pile and the main reinforcement 4 of the precast pile, and the horizontal and horizontal prefabricated piles are buried at the design position of the prefabricated pile 1. Embedded steel plate 7, prefabricated pile longitudinal pre-embedded steel plate 8, prefabricated pile vertical position stirrup 5 and prefabricated pile transverse position steel bar 6 are respectively connected with the reserved screw holes on prefabricated pile longitudinal pre-embedded steel plate 8 and prefabricated pile transverse pre-embedded steel plate 7 Connect, then pour conc...

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Abstract

The invention discloses a connecting method of a foundation pit precast pile and a cast-in-situ superposed lining wall through stirrups. The method includes the following steps that after the size of the precast pile is determined according to design, a main rib and the stirrups of the pile are arranged, a connecting steel plate is arranged on the joint of the pile stirrups and the wall stirrups along a pile body, and pile connecting holes and wall connecting holes are formed in the connecting steel plate; connecting ribs of the pile stirrups are fixedly connected with the connecting steel plate through the pile connecting holes, and the wall connecting holes are plugged through plugging materials; pile concrete is poured, the precast pile is beaten into the designed position of a foundation pit after the designed strength is achieved through curing, the plugging materials are removed after excavation of the foundation pit is completed, and the wall connecting holes are exposed; and according to the design requirement, the main rib, the stirrups and a bent rib are arranged at the corresponding positions of a cast-in-situ wall, connecting ribs of the wall stirrups in the cast-in-situ wall are fixedly connected with the connecting steel plate through the wall connecting holes, concrete of the cast-in-situ wall is poured after connection is completed, and connection of the precast pile and the cast-in-situ superposed wall is completed.

Description

technical field [0001] The invention relates to a method for connecting pile body stirrups and cast-in-place composite wall stirrups when prefabricated piles are used as surrounding protection piles during foundation pit excavation, and belongs to the technical field of underground engineering construction. Background technique [0002] With the development of society, the increase of labor costs and the requirements of environmental protection, the advantages of industrialized production buildings will become more and more obvious, so it is necessary to strengthen the design and research of industrialized buildings. In the excavation of foundation pits, in order to promote the industrialization of foundation pit engineering and save construction time, prefabricated components have gradually been used for construction on site, such as prefabricated piles, prefabricated column piles, and prefabricated continuous walls. However, when prefabricated components are connected with...

Claims

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Application Information

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IPC IPC(8): E02D5/20
Inventor 王国富路林海王丹
Owner JINAN RAILWAY TRANSPORT GRP CO LTD
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