Large load composite pile and construction method thereof

A technology of composite piles and large loads, applied in sheet pile walls, foundation structure engineering, buildings, etc., can solve problems such as poor vertical load bearing capacity, and achieve large vertical bearing capacity of single piles, small environmental impact, and wide application range wide effect

Inactive Publication Date: 2008-03-26
山东省机械施工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0002] The existing composite piles are composed of cement-soil piles and reinforced concrete pile cores. This kind of composite piles only bear the vertical load by the reinforced concrete pile core, and the vertical load bearing capacity is poor.

Method used

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  • Large load composite pile and construction method thereof

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Experimental program
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Effect test

Embodiment Construction

[0015] A large-load composite pile as shown in Figure 1 includes a pile core 1 and an outer layer pile 2 wrapped outside the pile core 1. The pile core 1 is made of multi-section high-strength prestressed concrete pipe piles, and the outer layer pile 2 It is a plain concrete pile, which can be poured on site.

[0016] Above-mentioned composite pile can adopt following method to make:

[0017] The method comprises the following steps: a. using the long auger drill hole pumping concrete construction method to cast plain concrete on site to form piles; Pile top elevation. When the length of a single pipe pile is not enough, piles can be connected.

[0018] The composite pile can be produced with reference to the parameters in the table below:

[0019] Composite pile

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Abstract

The present invention discloses one kind of heavy load composite pile comprising one pile core of high strength pre-stressed concrete pipe and one outer layer pile of plain concrete coating the pile core and its construction process. The construction process includes the following steps: 1. long auger boring and pump pressurizing concrete to form the in-situ deposited plain concrete pile; and 2. hoisting the high strength pre-stressed concrete pipe pile and inserting or pressurizing into the center of the plain concrete pile until reaching the designed depth. The composite pile has the vertical load borne by the high strength pre-stressed concrete pipe pile and the plain concrete pile, the side friction force increased by the plain concrete pile with relatively great cross section. It has great limit bearing capacity from the high strength pre-stressed concrete pipe pile.

Description

(1) Technical field [0001] The invention relates to a composite pile, in particular to a large-load composite pile, and also provides a construction method of the composite pile. (2) Background technology [0002] Existing composite piles are composed of cement-soil piles and reinforced concrete pile cores. This type of composite piles only bears vertical loads by reinforced concrete pile cores, and the bearing capacity of vertical loads is poor. (3) Contents of the invention [0003] The technical problem to be solved by the present invention is: to provide a large-load composite pile with strong vertical load capacity, and to provide a construction method of the composite pile. [0004] In order to solve the above technical problems: [0005] The composite pile of the present invention comprises a pile core and an outer layer pile wrapped outside the pile core, the pile core is a high-strength prestressed concrete pipe pile, and the outer layer pile is a plain concrete ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/50E02D5/58E02D5/34
Inventor 周广泉韩民
Owner 山东省机械施工有限公司
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