CN201526045U

CN201526045U - Composite pipe pile

Info

Publication number: CN201526045U
Application number: CN2009201648069U
Authority: CN
Inventors: 唐良华
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-11-06
Filing date: 2009-11-06
Publication date: 2010-07-14
Anticipated expiration: 2019-11-06

Abstract

The utility model discloses a composite pipe pile comprising a hollow cylindrical pile body; the front end of the cylindrical pile body is provided with a prefabricated arrowhead-shaped pile head; namely, the pile head comprises a conical head part, an annular shoulder part and a cylindrical tail part that are sequentially connected with one another; the conical axial rear end is connected with the annular external profile; the annular internal profile is connected with the axial front end of the cylindrical body; when the pile head is fixed on the pile body, the tail part of the pile body extends into the hollow chamber body of the pile body; and the shoulder part of the pile head is closely attached to the front end surface of the pile body. The composite pipe pile can be conveniently matched with the prefabricated pipe pile or cast-in-situ pipe pile, the pile sinking efficiency of the pipe pile is effectively improved, the disorder rate of the pipe pile is reduced, the construction period is shortened, and the breaking or crack generating does not occur to the pipe pile when the pipe pile is pressed by the external force so that the pipe pile is firmer.

Description

Compound pile tube

Technical field

The utility model relates to the compound pile tube that a kind of building trade is used.

Background technology

Pile tube is a kind of hollow cylindrical shell elongate concrete prefabricated units, mainly form by cylindrical shape pile body, end plate and steel hoop etc., it is widely used in the heavy constructions such as house, bridge, it mainly acts on is directly to be driven in the lithosphere at the bottom of the darker ground, the face of land as nail by machinery, weight with buildings such as better support house, bridges, prevent the landslide that when the soft base face bears bigger weight, takes place because of the wall base, and cause buildings such as house, bridge to cave in.Yet the head end of existing pile tube is a plane, its head end occurs cracking easily and gets out of the way as shuttlecock when being driven underground like this, even the situation that ruptures in the middle part might appear as cucurbit, thereby make the disorderly stake rate of pile tube improve greatly, this not only can influence construction speed, also make and the safety of construction variation finally cause the building safety accident.

The utility model content

Technical problem to be solved in the utility model provides a kind of convenience, safety, compound pile tube efficiently.

For addressing the above problem, the compound pile tube that the utility model is designed, the pile body that comprises the cylindricality of hollow, its difference is that the front end of described pile body also is provided with a prefabricated sagittate pile crown, be that pile crown comprises the conical head that connects successively, the shoulder of annular, and columniform afterbody, above-mentioned conical axial rearward end is connected with the outline of annular, the interior profile of annular is connected with columniform axial forward end, when pile crown spud pile on one's body the time, the afterbody of pile body stretches in the hollow cavity of pile body, and the shoulder of pile crown closely pastes mutually with the front end face of pile body.

For pile crown and pile body can better be fixed, described pile crown afterbody is pre-large post-small circular halfpace.

The peripheral size of the ring surface of the described pile crown shoulder of such scheme and the front end face of pile body can be inequality, the peripheral size of ring surface that is the pile crown shoulder is greater than the front end face of pile body, or the peripheral size of the ring surface of pile crown shoulder is less than the front end face of pile body, but for to reduce the suffered stress of shoulder as far as possible, the ring surface of pile crown shoulder is preferably consistent with the peripheral size of the front end face of pile body.

In order to improve drilling efficiency, the tapering of described pile crown head is preferably 45 °.

In the such scheme, described pile crown is formed by mixed earth casting.

The utility model compared with prior art, can be easily with prefabricated tubular pile or now annotate the pile tube use that matches, not only effectively improve the pile sinking efficient of pile tube, reduce the disorderly stake rate of pile tube, shorten construction period; Can prevent that also pile tube from being broken up or producing the crack at the Shi Buhui that suppresses that is subjected to external force, make pile tube nearer firm.

Description of drawings

Fig. 1 is the structural representation of a kind of compound pile tube of the utility model.

Number in the figure is: 1, pile body; 2, pile crown; 21, head; 22, shoulder; 23, afterbody.

The specific embodiment

As Fig. 1 is a kind of compound pile tube, the pile body 1 that comprises the cylindricality of hollow, the front end of described pile body 1 also is provided with a prefabricated sagittate pile crown 2, and promptly pile crown 2 comprises the conical head 21 that connects successively, the shoulder 22 and the columniform afterbody 23 of annular.Above-mentioned conical axial rearward end is connected with the outline of annular, the interior profile of annular is connected with columniform axial forward end, this just is the equal of that the conical axial rearward end of pile crown 2 heads 21 is the planes of shoulder 22 places of pile crown 2 along its annular of formation that directly inwardly contracts, extend back vertically again after interior the contracting of this planar annular, form a columniform afterbody 23.When prefabricated pile crown 2 with prefabricated tubulose or when now annotating pile tube and being used, the afterbody 23 of pile body 1 stretches in the hollow cavity of pile body 1, the shoulder 22 of pile crown 2 and the closely subsides mutually of the front end face of pile body 1.

According to the employed environment appropriate design head 21 conical taperings of pile crown 2, its tapering can be designed between 30 °-60 °, but is preferably 45 °.The radial section of pile crown 2 heads 21 can be circle or polygon, but in order to reduce head 21 suffered stress as far as possible, it is circular that the radial section of described pile crown 2 heads 21 is preferably.

The shape and the peripheral size of the ring surface of shoulder 22 pile crowns 2 shoulders 22 of pile crown 2 and the front end face of pile body 1 can be inequality, it is the shape of ring surface of pile crown 2 shoulders 22 and peripheral size front end face greater than pile body 1, or the shape of the ring surface of pile crown 2 shoulders 22 and peripheral size are less than the front end face of pile body 1, but for reducing the suffered stress of shoulder 22 as far as possible, the ring surface of pile crown 2 shoulders 22 is preferably consistent with the peripheral size of the front end face of pile body 1.

The afterbody 23 of above-mentioned pile crown 2 can be the cylindrical of self-consistentency, this moment, columniform side was identical with the peripheral size of the inner chamber of pile body 1, but fix in order to allow pile crown 2 can better stretch into pile body 1, the further improvement of such scheme is to make pile crown 2 afterbodys 23 be pre-large post-small circular halfpace.

Compound pile tube described in the utility model can adopt cast moldings of material such as concrete, stainless steel, copper, iron, considers cost, and described compound pile tube preferably uses concrete prefabricated one-tenth.

Claims

1. compound pile tube, the pile body (1) that comprises the cylindricality of hollow, it is characterized in that: the front end of described pile body (1) also is provided with a prefabricated sagittate pile crown (2), be that pile crown (2) comprises the conical head (21) that connects successively, the shoulder (22) of annular, and columniform afterbody (23), above-mentioned conical axial rearward end is connected with the outline of annular, the interior profile of annular is connected with columniform axial forward end, when pile crown (2) when fixedly pile body (1) is gone up, the afterbody (23) of pile body (1) stretches in the hollow cavity of pile body (1), and the shoulder (22) of pile crown (2) closely pastes mutually with the front end face of pile body (1).

2. compound pile tube according to claim 1 is characterized in that: described pile crown (2) afterbody (23) is pre-large post-small circular halfpace.

3. compound pile tube according to claim 1 and 2 is characterized in that: the ring surface of described pile crown (2) shoulder (22) is consistent with the peripheral size of the front end face of pile body (1).

4. compound pile tube according to claim 1 is characterized in that: the tapering of described pile crown (2) head (21) is 45 °.

5. compound pile tube according to claim 1 and 2 is characterized in that: described pile crown (2) is formed by mixed earth casting.