A steel pipe pile with an outrigger and its construction method

A technology of steel pipe piles and steel pipes, applied in sheet pile walls, infrastructure engineering, construction, etc., can solve problems such as low bearing capacity, and achieve the effects of reduced friction, easy operation, and increased lateral friction resistance and bearing capacity.

Active Publication Date: 2020-11-03
山东成通智能装备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a steel pipe pile with an outrigger, which can solve the technical problems of smooth side wall and low bearing capacity of the existing steel pipe pile, so that the side friction resistance and bearing capacity are greatly improved, and can be applied to construction reinforcement of the foundation

Method used

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  • A steel pipe pile with an outrigger and its construction method
  • A steel pipe pile with an outrigger and its construction method
  • A steel pipe pile with an outrigger and its construction method

Examples

Experimental program
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Effect test

Embodiment 1

[0038] Such as Figure 1-3 Shown:

[0039] A steel pipe pile with an outrigger, comprising a pile body 1 and a pile tip 2, the pile body 1 is a steel pipe structure, characterized in that: the pile tip is a conical structure with a closed bottom, the pile body and the pile tip The tip is integrally formed, the inside of the pile body is a cavity 11 structure, and the pile body 1 is connected with an outrigger 4 that can extend out of the pile body 1 and insert into the soil;

[0040] The pile body of the cavity 11 is connected with an outrigger 4 that can protrude to the outside of the pile body 1 and insert into the soil; after the outrigger 4 is inserted into the soil, the side friction and bearing capacity of the steel pipe pile are greatly increased. Meet the requirements of building foundation reinforcement and expand the scope of application;

[0041] The outrigger 4 is a hollow structure with one end closed and the other end open, the cavity 11 communicates with the h...

Embodiment 2

[0051] Embodiment 2 is the construction method of Embodiment 1, and the specific method is: a construction method of a steel pipe pile with an outrigger, and its specific steps are as follows:

[0052] 1) Provide a steel pipe pile with an outrigger as described in Embodiment 1;

[0053] 2) Set out the line to determine the pile position, use the suspension ring to suspend the steel pipe pile with obliquely extending arms directly above the pile position, and align the pile tip with the middle position of the pile position;

[0054] 3) Start the pile driver, and slowly insert the steel pipe pile with oblique outrigger into the foundation;

[0055] 4) When the pile body reaches the predetermined depth, cover the pile cover 3, use a high-pressure air pump to inject high-pressure gas into the cavity through the high-pressure inflation hole 31 on the pile cover 3, and stabilize the pressure for 15 to 20 minutes to ensure that the extension The arm 4 is fully stretched out and inse...

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Abstract

The invention relates to a steel pipe pile with a telescopic arm and a construction method thereof. The steel pipe pile comprises a pile body and a pile toe, wherein the pile body is of a steel pipe structure, the pile toe is of a bottom sealed cone structure, the pile body and the pile toe are integrally formed, the pile body is of a cavity structure inside, the telescopic arm which can stretch toward the outer side of the pile body and is inserted into a soil body is connected to the pile body, one end of the telescopic arm is closed while the other end of the telescopic arm is of an openedhollow structure, the cavity communicates to the hollow structure through the opening, and the telescopic arm is perpendicular to the pile body. The side friction and the bearing force of the steel pipe pile are improved greatly, so that the steel pipe pile is suitable for reinforcing a building foundation.

Description

technical field [0001] The invention relates to the technical field of steel piles, in particular to a steel pipe pile with an outrigger and a construction method thereof. Background technique [0002] Engineering piles are divided into concrete piles, steel piles and composite material piles according to the pile material; steel pipe piles are a kind of steel piles, which have the advantages of light weight and high bearing capacity. At present, they are widely used in marine engineering. However, the side wall of the steel pipe pile is smooth and the friction coefficient of the pile body is low. In view of this, the steel pipe pile is rarely used to strengthen the building foundation. [0003] In response to the above defects, the Chinese patent (publication number: CN106869106A) proposed a method for reinforcing the foundation with welded flank-type steel pipe piles. When the length of the ordinary steel pipe pile reaches two-thirds of the design pile length, use the flan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D5/48E02D5/50E02D5/62
CPCE02D5/48E02D5/50E02D5/62
Inventor 胡振华王颖李大勇肖洪天张宪堂宫亚茹
Owner 山东成通智能装备有限公司
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