Cast-in-situ pedestal pile with variable bearing and its construction method

A grouting pile and variable technology, applied in sheet pile wall, construction, infrastructure engineering and other directions, can solve the problems of low bearing capacity of cast-in-place piles, large settlement of buildings, small settlement of buildings, etc., and achieve good pile quality. , the effect of saving materials and improving bearing capacity

Inactive Publication Date: 2002-06-26
赵书平
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the technical difficulties of cast-in-situ piles with low bearing capacity, high cost, large building settlement and large amount of mud discharge, and provide a high bearing capacity, low cost, no sediment virtual soil at the bottom of the pile, and small building settlement. And variable bottom expansion support plate grouting pile with small amount of discharged mud and forming method

Method used

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  • Cast-in-situ pedestal pile with variable bearing and its construction method
  • Cast-in-situ pedestal pile with variable bearing and its construction method
  • Cast-in-situ pedestal pile with variable bearing and its construction method

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with the drawings and embodiments.

[0016] Such as figure 1 with figure 2 As shown, the variable bottom-expanded branch-plate grouting pile in this embodiment includes a steel cage 2, a concrete pile column 3, a grouting pipe 1 and two circular-cone-shaped variable branch plates 4, Among them: it also includes cement 5; the grouting pipe 1 is tied to the steel cage 2, and the steel cage 2 is set in the concrete pile 3, so that the grouting port of the grouting pipe 1 extends out of the top surface of the concrete pile 3. The grouting port of the grouting pipe 1 extends beyond the bottom surface of the concrete pile 3 to facilitate the injection of grout at the bottom of the pile; two variable support plates 4 are respectively arranged at the bottom of the concrete pile 3 and the middle of the pile The cement slurry 5 is set on the bottom of the concrete pile 3 and the bottom surface of the variable suppo...

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Abstract

A cast-in-situ pedestal pile for building, bridge and foundation is composed of concrete pile column, reinforcing bar cage in the said pile column, grouting pipe bound to the said reinforcing bar cage, and several variable supporting disks. Its forming method includes such steps as drilling hole of pile, squeezing and expanding to form variable supporting disks, putting reinforcing bar in the hole of pile, pouring concrete into pile hole and supporting disks, and cement grounting the pile bottom and supporting disk under sides. Its advantages include high load-bearing capacity and low drained slurry.

Description

1. Technical Field: [0001] The invention relates to a variable bottom-expanded branch grouting pile and a forming method, belonging to a hole-forming concrete cast-in-place pile and a forming method. 2. Background technology: [0002] It is well known that the bearing capacity of ordinary concrete cast-in-place piles is low, and the strength of the pile body is difficult to exert. The pile tip sediment and virtual soil are not easy to clean up. Therefore, it has low bearing capacity, high cost, and easy to cause large building settlements and large discharge mud Disadvantages. 3. Summary of the invention: [0003] The purpose of the present invention is to solve the technical difficulties of low bearing capacity, high cost, large building settlement and large discharge mud volume of cast-in-place piles, and to provide a high bearing capacity, low cost, no sediment and virtual soil at the bottom of the pile, and small building settlement. And a variable bottom-expanded branch-pla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/36E02D5/44
Inventor 赵书平赵和平樊春义
Owner 赵书平
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