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Construction method for expanded end bearing pile

A construction method and hole end technology, which are applied in sheet pile walls, foundation structure engineering, construction, etc., to achieve good application prospects, improve the bearing capacity of pile ends, and have good mechanical properties.

Inactive Publication Date: 2015-11-04
广西帝邦建设工程有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a construction method for reaming end-bearing piles to solve the problem of positioning measures after reaming of pile ends

Method used

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  • Construction method for expanded end bearing pile
  • Construction method for expanded end bearing pile
  • Construction method for expanded end bearing pile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The positioning structure is adopted as follows: the prefabricated pile point adopts a flat-top pile point 4, and a cylinder protruding from the top of the flat-top pile point 4 is used as a joint, and the height of the protruding cylinder is 11 cm. Welding pile tube reinforcing ring 5 at the outermost bottom of pile tube 3, pile tube reinforcing ring 5 is thick as 25mm, and height is 15cm, and pile tube reinforcing ring 5 helps to tightly hoop the pile point. The rubber ring 1 is glued to the positioning hard plastic tube 2. The height of the positioning hard plastic tube 2 is 60cm, and the wall thickness of the positioning hard plastic tube 2 is 5cm. The positioning hard plastic tube 2 is spliced ​​by two semicircular tubes. The pipe 2 is placed inside the pile pipe 3 . When the positioning hard plastic pipe 2 is disengaged from the pile pipe 3, under the action of the shock force of the pile driver, the spliced ​​semicircular pipe will be scattered, and the rubber ri...

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PUM

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Abstract

The invention discloses an expanded pile construction method. The expanded pile construction method is characterized in that concrete is split off and expanded on the portion of a supporting layer of a pile through shock exciting force of a pile driver, the splitting off and expansion of the concrete is guided through a positioning structure, thus, a complete force bearing disk is formed, the bearing area of the pile end is expanded, and the bearing force of the pile end is increased. The method includes the construction steps of (1) performing positioning, (2) mounting the positioning structure, (3) settling a pipe, (4) pre-pulling the pipe, (5) inserting the pile pipe in the opposite direction, (6) pulling the pipe, (7) performing feeding in the air and (8) pulling the pipe.

Description

technical field [0001] The invention relates to a hole-expanding end-bearing pile, in particular to a construction method of a hole-expanding end-bearing pile. Background technique [0002] If there is no positioning measure after the pile tip is reamed, it is difficult for the expanded concrete at the pile tip to form a complete load-bearing plate. Even if a load-bearing structure is formed, the expanded concrete will not be evenly distributed, and the load-bearing performance of the load-bearing structure will inevitably be poor. Contents of the invention [0003] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a construction method for reaming end-bearing piles to solve the problem of positioning measures after reaming the pile ends. [0004] The invention uses the shock force of the pile driver to split and expand the concrete at the pile-bearing layer, and adopts a positioning structure to guide the split and expand of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/44E02D11/00
Inventor 叶香雄
Owner 广西帝邦建设工程有限公司