Method and device of immersed tube pile planting and utilization method of device

A technology of planting piles and sinking tubes, which is applied to sheet pile walls, buildings, and foundation structure engineering, can solve problems such as small gap between prefabricated piles and sinking tubes, difficulty in recognizing pile connection operations, and difficulty in recognizing prefabricated piles into casings, etc. Achieve the effect of high construction efficiency, convenient operation and simple operation

Inactive Publication Date: 2018-11-13
毕建宏
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  • Claims
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AI Technical Summary

Problems solved by technology

[0004] (1) Because this type of pile is generally an end-supported pile, the length of the pile is unknown in advance, and the length of the immersed tube is fixed, so the height of the immersed tube exposed to the ground or the operating surface is also unknown. When the exposed height is large , it is difficult to carry out pile recognition operation;
[0005] (2) Due to the reason (1), and the gap between the prefabricated pile and the sinking tube is small, it is difficult to recognize the prefabricated pile into the casing;

Method used

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Examples

Experimental program
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Embodiment Construction

[0035] The soil layer of the site soil from top to bottom: about 1m thick miscellaneous fill soil, about 5m thick soft plastic-plastic silty clay, about 2m thick slightly dense, medium dense fine sand, medium sand, about 1m Thick fully weathered mudstone, about 3m thick strongly weathered mudstone, below is moderately weathered mudstone.

[0036] The design adopts immersed pipe pile planting, the pile diameter is 400mm, the pile length is 15m, and the ultimate bearing capacity is 6000kN. The lower part is an inverted conical shape with a slope foot of 45°.

[0037] Adopt static pressure sinking pipe pile planting, 800 type double clamp pile box static pressure pile machine.

[0038] The casing is D426*40 seamless steel pipe, made of Q345; the pile tip is a jacketed steel-concrete composite pile tip with an outer diameter of D457, and the height of the skirt is 0.5m.

[0039] The binder is M5 cement mortar; the concrete is C40 self-compacting concrete.

[0040] The construct...

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PUM

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Abstract

The invention provides two immersed tube pile planting methods for planting a precast pile after pulling out an immersed tube, a double-pile clamping box static pile pressing machine matched with themethods, and a utilization method of the double-pile clamping box static pile pressing machine. Compared with a conventional immersed tube pile planting method for planting the precast pile before pulling out a sleeve, the immersed tube pile planting methods have the advantages that operation is easier and safer, and construction efficiency is higher.

Description

technical field [0001] The invention relates to a method and a device for planting piles by sinking tubes and a use method thereof, and belongs to the technical field of pile foundation construction. Background technique [0002] Most of the existing pile planting methods are drilling piles or inserting prefabricated piles into cement soil. The piles are basically friction piles, and the bearing capacity of the pile tip is low, so it cannot play the role of a hard bearing layer. [0003] The method of pipe sinking pile planting provided by the invention patent with application number 201810392395.2 is to implant prefabricated piles in the sinking tube. The following problems in operation may lead to the failure of pipe sinking pile planting: [0004] (1) Because this type of pile is generally an end-supported pile, the length of the pile is unknown in advance, and the length of the immersed tube is fixed, so the height of the immersed tube exposed to the ground or the operat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D7/18E02D7/20
CPCE02D7/18E02D7/20
Inventor 毕建宏
Owner 毕建宏
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