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Preparation process of anti-settling prestressed concrete pipe pile

A technology of concrete pipe pile and preparation process, which is applied in the direction of manufacturing tools, sheet pile walls, foundation structure engineering, etc. It can solve the problems of derailment of foundation environment, heavy weight, uncontrollable settlement, etc., and achieve the effect of increasing anchorage strength and improving settlement

Inactive Publication Date: 2020-12-18
黄娟玲
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the prestressed concrete pipe pile has high strength, due to its heavy weight, there is a possibility of derailment from the foundation environment after the pile sinking, resulting in uncontrollable settlement and seriously affecting the construction quality

Method used

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  • Preparation process of anti-settling prestressed concrete pipe pile
  • Preparation process of anti-settling prestressed concrete pipe pile
  • Preparation process of anti-settling prestressed concrete pipe pile

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Embodiment 1

[0043] see Figure 1-2 , a preparation process of anti-settling prestressed concrete pipe piles, comprising the following steps:

[0044] S1. After tying the reinforcement cage, weld the magnetic pushing grid 1 along the designated position, and then put it into the pipe pile mold;

[0045] S2. Weighing appropriate raw materials for pre-mixing, and pouring into the pipe pile mold, stretching the fabric, and applying prestress;

[0046] S3. Concrete is centrifugally formed by a concrete pipe pile centrifuge, and the pipe pile mold is placed in a steam curing tank for atmospheric pressure steam curing;

[0047] S4. After the steam curing, take out the pipe pile mold and remove the mold, and install the magnetic migration anchor rod 2 on the magnetic pushing grid 1, and then naturally water and maintain for 3-10 days;

[0048] S5. After sinking the pile, the magnetic pushing grid 1 is heated to force the magnetic migration anchor rod 2 to shrink and trigger the anchoring action...

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Abstract

The invention discloses a preparation process of an anti-settling prestressed concrete pipe pile, and belongs to the technical field of concrete pipe piles. A steel reinforcement cage can be pre-embedded into the concrete pipe pile in a manner of installing a magnetic pushing net rack, then a magnetic migration anchor rod is embedded after maintenance and molding, then pile sinking is carried outby adopting a conventional pile sinking process, after pile sinking is finished, the magnetic field leakage work is triggered in a mode of heating the magnetic pushing net frame, then a disconnectionaction is triggered in the magnetic migration anchor rod through the magnetic repulsion effect, within the time difference from disconnection action to thorough disconnection and by continuing to relyon the magnetic repulsion function, the magnetic migration anchor rod is pushed to migrate from the magnetic pushing net rack and inserted into the foundation environment to form an anchoring hole, mortar is automatically released after thorough disconnection and escapes along the anchoring hole to reversely enter the magnetic migration anchor rod, and the anchoring strength can be remarkably improved after the mortar is solidified; and therefore, the settlement phenomenon of the concrete pipe pile in the foundation environment is effectively improved.

Description

technical field [0001] The invention relates to the technical field of concrete pipe piles, in particular to a preparation process for anti-settling prestressed concrete pipe piles. Background technique [0002] Prestressed concrete pipe piles can be divided into post-tensioned prestressed pipe piles and pretensioned prestressed pipe piles. Pretensioned prestressed pipe pile is a hollow cylindrical slender concrete prefabricated component made by pretensioned prestressing process and centrifugal forming method. It is mainly composed of cylindrical pile body, end plate and steel ferrule. [0003] Prefabricated concrete pipe piles have a wide range of applications and are suitable for the foundation of various buildings and structures. The concrete strength of the pile body is high, and the general requirement is not less than C60 (C60 means concrete with a (150x150x150) cubic compressive strength standard value of 60N / mm2 under standard curing conditions), and the concrete s...

Claims

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Application Information

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IPC IPC(8): B28B21/30B28B21/56B28B21/60B28B23/00E02D5/58
CPCB28B21/30B28B21/56B28B21/60B28B23/005E02D5/58
Inventor 黄娟玲
Owner 黄娟玲
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