CN202492840U

CN202492840U - Post-grouting concrete prestressed hollow quadrate pile

Info

Publication number: CN202492840U
Application number: CN2012200826520U
Authority: CN
Inventors: 梁军起
Original assignee: ZHEJIANG ZHONGJI PILE INDUSTRY Co Ltd
Current assignee: ZHEJIANG ZHONGJI PILE INDUSTRY Co Ltd
Priority date: 2012-03-07
Filing date: 2012-03-07
Publication date: 2012-10-17
Anticipated expiration: 2022-03-07

Abstract

The utility model provides a post-grouting concrete prestressed hollow quadrate pile. Central through holes passing through the whole post-grouting concrete prestressed hollow quadrate pile are arranged at the centre of the concrete prestressed hollow quadrate pile in the direction of a longitudinal axis of the post-grouting concrete prestressed hole quadrate pile; the cross section of the internal circumference of the post-grouting concrete prestressed hollow quadrate pile is quadrate; the cross section of the external circumference of the post-grouting concrete prestressed hollow quadrate pile is in the structure of a quadrate curve having linear opposite sides and arc-shaped opposite sides; the sections of the internal circumference and the external circumference of the post-grouting concrete prestressed hollow quadrate pile have the same geometric dimension in the direction of the whole longitudinal axis; and a grouting pipe is arranged in the post-grouting concrete prestressed hollow quadrate pile. According to the post-grouting concrete prestressed hollow quadrate pile, the grouting pipe is embedded during fabricating process of the post-grouting concrete prestressed hollow quadrate pile, and the post-grouting technology can be carried out after the completion of pile sinking in the pile foundation, therefore, the physical and mechanical properties of the earth mass are changed, the bearing capacity of the pile body is improved, and the connection between the piles is improved.

Description

A kind of grouting behind shaft or drift lining concrete pre-stress hollow square pile

Technical field

The utility model relates to the improvement of grouting behind shaft or drift lining concrete pre-stress hollow square pile in the building field and the prefabricated production of cast-in-place concrete structure post, particularly a kind of grouting behind shaft or drift lining concrete pre-stress hollow square pile.

Background technology

Mostly the existing concrete hollow square pile is prefabricated units, and after pile sinking was accomplished, pile body itself contact with the soil body and very fits, and often needs the supporting capacity of the stop time competence exertion stake of length itself, and with between be connected relatively poor.

The utility model content

The technical problem that the utility model will solve provides a kind of grouting behind shaft or drift lining concrete pre-stress hollow square pile, to reduce or to avoid problem noted earlier.

For achieving the above object, the technical scheme of the utility model is following:

A kind of grouting behind shaft or drift lining concrete pre-stress hollow square pile; Said grouting behind shaft or drift lining concrete pre-stress hollow square pile y direction, concrete pre-stress hollow square pile center are provided with the central through hole that runs through whole grouting behind shaft or drift lining concrete pre-stress hollow square pile; Interior all cross sections of said grouting behind shaft or drift lining concrete pre-stress hollow square pile are square; The periphery cross section of said grouting behind shaft or drift lining concrete pre-stress hollow square pile is that the curved surface of an opposite side straight line, an opposite side circular arc is square; Said grouting behind shaft or drift lining concrete pre-stress hollow square pile is identical in the interior periphery cross section geometry of whole y direction, is provided with Grouting Pipe in the said grouting behind shaft or drift lining concrete pre-stress hollow square pile.

Preferably, said grouting behind shaft or drift lining concrete pre-stress hollow square pile length direction is extended with main muscle and the spiral stirrup around said main muscle, and said main muscle is square.

Through technique scheme, the beneficial effect of the utility model is:

A kind of grouting behind shaft or drift lining concrete pre-stress hollow square pile of the utility model, pre-buried Grouting Pipe in the pile body forming process behind pile foundation construction, is carried out grouting process, from but the soil body fully contact with pile body.On the one hand the soil body is fully contacted with pile body, before the soil body stops, higher pile body bearing capacity is provided, simultaneously, slip casting makes the soil body obtain reinforcing, and also can increase pile body bearing capacity, strengthen simultaneously stake with between be connected.

Description of drawings

In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is the utility model vertical view;

Fig. 2 is the utility model elevation;

Fig. 3 is the utility model vertical view.

The numeral corresponding component title represented among the figure with letter:

10, through hole 11, Grouting Pipe

The specific embodiment

For technological means, creation characteristic that the utility model is realized, reach purpose and be easy to understand understanding with effect, below in conjunction with concrete diagram, further set forth the utility model.

Extremely shown in Figure 3 referring to Fig. 1; A kind of grouting behind shaft or drift lining concrete pre-stress hollow square pile of the utility model; Said grouting behind shaft or drift lining concrete pre-stress hollow square pile y direction, concrete pre-stress hollow square pile center are provided with the central through hole 10 that runs through whole grouting behind shaft or drift lining concrete pre-stress hollow square pile; Interior all cross sections of said grouting behind shaft or drift lining concrete pre-stress hollow square pile are square; The periphery cross section of said grouting behind shaft or drift lining concrete pre-stress hollow square pile is that the curved surface of an opposite side straight line, an opposite side circular arc is square; Said grouting behind shaft or drift lining concrete pre-stress hollow square pile is identical in the interior periphery cross section geometry of whole y direction, is provided with Grouting Pipe 11 in the said grouting behind shaft or drift lining concrete pre-stress hollow square pile.

The utility model grouting behind shaft or drift lining concrete pre-stress hollow square pile length direction is extended with main muscle and the spiral stirrup around said main muscle, and said main muscle is square.

More than show and described basic principle of the utility model and the advantage of principal character and the utility model.The technician of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the manual that the utility model just is described; Under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection domain to be defined by appending claims and equivalent thereof.

Claims

1. grouting behind shaft or drift lining concrete pre-stress hollow square pile; Said grouting behind shaft or drift lining concrete pre-stress hollow square pile y direction, concrete pre-stress hollow square pile center are provided with the central through hole that runs through whole grouting behind shaft or drift lining concrete pre-stress hollow square pile; It is characterized in that; Interior all cross sections of said grouting behind shaft or drift lining concrete pre-stress hollow square pile are square; The periphery cross section of said grouting behind shaft or drift lining concrete pre-stress hollow square pile is that the curved surface of an opposite side straight line, an opposite side circular arc is square, and said grouting behind shaft or drift lining concrete pre-stress hollow square pile is identical in the interior periphery cross section geometry of whole y direction, is provided with Grouting Pipe in the said grouting behind shaft or drift lining concrete pre-stress hollow square pile.

2. grouting behind shaft or drift lining concrete pre-stress hollow square pile according to claim 1 is characterized in that, said grouting behind shaft or drift lining concrete pre-stress hollow square pile length direction is extended with main muscle and the spiral stirrup around said main muscle, and said main muscle is square.