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Steel pipe pile with tree burl and its construction method

A construction method and technology of steel pipe piles, which are applied in sheet pile walls, infrastructure engineering, construction, etc., can solve the problems of inability to achieve, increase the weight of friction piles, etc., and achieve the advantages of improving compactness, reducing construction costs, and increasing contact area. Effect

Active Publication Date: 2016-01-20
ZHEJIANG CTB WAVEFORM STEEL WEB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The friction pile relies on the friction between the surface of the pile body and the original geological soil to bear the weight of the superstructure. The center of the pile of the existing friction pile is concrete, because it is not in contact with the ground, so it cannot play its due role. Increased the weight of the friction pile to offset part of the friction

Method used

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  • Steel pipe pile with tree burl and its construction method
  • Steel pipe pile with tree burl and its construction method
  • Steel pipe pile with tree burl and its construction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Steel pipe piles with burls, such as figure 1 As shown, it includes a steel pipe 1 and a concrete pile 2 arranged outside the steel pipe 1, and a tree burl 6 is arranged on the outer wall of the concrete pile 2.

[0028] Burl 6 is a concrete block connected with concrete pile 2 as a whole. A hole 11 is arranged on the steel pipe 1, a concrete maintenance hole 21 communicating with the hole 11 of the steel pipe 1 is arranged on the concrete pile 2, and a branch pile 3 is arranged in the concrete maintenance hole 21.

[0029] The branch pile 3 is inserted into the ground 5 through the steel pipe 1 and the concrete pile 2 .

[0030] The included angle a between the branch pile 3 and the outer wall of the concrete pile 2 is equal to 90°. The steel pipe 1 is a corrugated steel pipe surrounded by corrugated steel plates. The branch pile 3 is a steel pipe.

[0031] The construction method of the steel pipe pile with tree burl comprises the above-mentioned steel pipe pile w...

Embodiment 2

[0039] Steel pipe piles with burls, such as figure 2 , 4 As shown, it includes a steel pipe 1 and a concrete pile 2 arranged outside the steel pipe 1, and a tree burl 6 is arranged on the outer wall of the concrete pile 2.

[0040] The included angle a between the branch pile 3 and the outer wall of the concrete pile 2 is equal to 70°. The top of the steel pipe pile with tree burls is also provided with a lower manhole 4 . The steel pipe 1 is a corrugated steel pipe surrounded by corrugated steel plates. The longitudinal section of the corrugated steel pipe is straight. Branch stake 3 stumps.

[0041] The construction method of the steel pipe pile with tree burl comprises the above-mentioned steel pipe pile with tree burl and the construction method, comprising the following steps:

[0042] a. Put the reinforcement cage first and then put the corrugated hollow steel pipe 1;

[0043] b. Concrete is poured between the corrugated hollow steel pipe 1 and the pile hole to ge...

Embodiment 3

[0049] Steel pipe piles with burls, such as image 3 As shown, it includes a steel pipe 1 and a concrete pile 2 arranged outside the steel pipe 1, and a tree burl 6 is arranged on the outer wall of the concrete pile 2.

[0050] Burl 6 is a concrete block connected with concrete pile 2 as a whole. A hole 11 is arranged on the steel pipe 1, a concrete maintenance hole 21 communicating with the hole 11 of the steel pipe 1 is arranged on the concrete pile 2, and a branch pile 3 is arranged in the concrete maintenance hole 21.

[0051] The branch pile 3 is inserted into the ground 5 through the steel pipe 1 and the concrete pile 2 .

[0052] The included angle a between the branch pile 3 and the outer wall of the concrete pile 2 is equal to 60°. The steel pipe 1 is a corrugated steel pipe surrounded by corrugated steel plates.

[0053] The top of the steel pipe pile with tree burls is also provided with a lower manhole 4 . The steel pipe 1 is a corrugated steel pipe surrounded ...

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Abstract

The invention relates to a concrete friction pile, and discloses a steel pipe pile with burrs and a construction method. The steel pipe pile comprises a steel pipe and a concrete pile arranged outside the steel pipe, wherein the burrs are arranged on the outer wall of the concrete pile. A process comprises a step of forming the burrs after concrete filled under high pressure is set. According to the steel pipe pile with the burrs and the construction method, the burrs are arranged on the outer wall of the concrete pile outside the steel pipe, so that the area of contact between the concrete pile and the ground is enlarged; in addition, branch piles are arranged on the steel pipe pile, extend from the steel pipe pile, and are inserted into the ground, so that the area of contact between the whole friction pile and the ground is enlarged, and the friction force of the friction pile is improved; moreover, the burrs and the branch piles are additionally arranged, so that the compactness of soil around a pile body is further improved, and the overall friction force is further improved; in case of sinking and the like of the friction pile, the pile body can be secondarily maintained and reinforced in a way of drilling through holes in the pile to secondarily arrange the branch piles, the burrs and the like.

Description

technical field [0001] The invention relates to concrete friction piles, in particular to a steel pipe pile with tree burrs and a construction method. Background technique [0002] The friction pile relies on the friction between the surface of the pile body and the original geological soil to bear the weight of the superstructure. The center of the pile of the existing friction pile is concrete, because it is not in contact with the ground, so it cannot play its due role. The weight of the friction pile is increased to offset part of the friction. In addition, since the outer wall of the friction pile is circular, its contact area with the ground is small, and the frictional force is also small. Contents of the invention [0003] The present invention aims at the disadvantages that the friction pile in the prior art is a solid pile, heavy, the contact area between the outer wall of the friction pile and the ground is small, the friction force is small, and the friction p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D5/38E02D5/48
Inventor 孙天明曾勇
Owner ZHEJIANG CTB WAVEFORM STEEL WEB