CN201089930Y

CN201089930Y - Pile-forming sink pipe

Info

Publication number: CN201089930Y
Application number: CNU2007200149609U
Authority: CN
Inventors: 杨国龙; 徐志明
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-09-29
Filing date: 2007-09-29
Publication date: 2008-07-23
Anticipated expiration: 2017-09-29

Abstract

The utility model discloses pile-forming equipment for an immersed pipe prefabricated steel concrete pedestal pile, in particular a piling immersed pipe which is a supporting immersed pipe for various immersed pipe prefabricated steel concrete pedestal piles. The utility model is formed by a hollow pipe shaped pipe body (1), a bottom (2) circumferentially provided with at least two guide vanes (3) and a metal pile head (4), the bottom (2) is arranged on the lower end of the pipe body (1), the metal pile head (4) is arranged inside the lower end of the bottom (2), the front end of the metal pile head (4) is provided with a metal detecting stick (5), the section of the pipe body (1) is of a circle, the pipe body (1) has a multi-section type structure, two sections of adjoining pipe bodies (1) are riveted through rivets. The front end of the metal pile head is provided with one metal detecting stick, so the utility model can be used as a hard clay layer detector, and can also extrude out a very small space in the hard clay layer to contribute to the metal pile head to be extracted from the immersed pipe.

Description

Pile-formation sunken tube

Technical field

The utility model relates to a kind of pile-forming equipment of pipe sinking prefabricated steel concrete club-footed pile, and particularly a kind of pile-formation sunken tube is the supporting immersed tube of various precast reinforced concrete piles.

Background technology

In the pile foundation engineering of soft foundation, generally adopt tube-sinking cast-in-situ pile, three kinds of preformed pile and large diameter bored piles at present.And what be most widely used is tube-sinking cast-in-situ pile, when executing immersed tube is passed the weak soil layer, takes out metal pile head after reaching the design elevation hardpan, the bottom-expanding equipment of expanded bore pile is lowered to digs the scholar in the immersed tube again, fetching earth forms the expanded bore pile base cavity pocket.Can't detect immersed tube when present immersed tube is constructed at the scene and whether arrive hardpan, also there is a kind of pile-formation sunken tube at present, between the pipe shaft of this immersed tube by being threaded, but find that in practice the connection of thread between this immersed tube multisection type pipe shaft causes the junction insecure because falling into of soil arranged after use a period of time especially easily, and then influence the stability of entire equipment.For these reasons, immersed tube in the past has further improved necessity.

The utility model content

The utility model is at the problem that above-mentioned prior art exists, provide a kind of rational in infrastructure, can detect immersed tube and arrived the pile-formation sunken tube that hardpan, convenient construction and pipe shaft are connected firmly.

The utility model realizes that the technical scheme of purpose is: a kind of pile-formation sunken tube, it is by the pipe shaft of hollow tubular, along circumferentially the bottom and the metal pile head of at least two guide vanes of setting constitute, the pipe shaft lower end is located in the bottom, metal pile head is arranged on the inside, lower end of bottom, the front end of metal pile head is provided with a metal probe, the cross section of pipe shaft is circular, and pipe shaft is a multi-segment structure, passes through rivet between adjacent two sections pipe shafts.

The utility model compared with prior art, pipe shaft is a multi-segment structure, by rivet, processing technology is simple between adjacent two sections pipe shafts, cost of production is low, the good stability of equipment during use.And being provided with a metal probe at the front end of metal pile head, it both can make ground hardpan survey meter, can extrude an individual very little space again in hardpan, was beneficial to metal pile head and extracted in immersed tube.

Below in conjunction with the drawings and specific embodiments the utility model is described in further details.

Description of drawings

Fig. 1 is a main TV structure schematic diagram of the present utility model.

Among the figure 1, pipe shaft; 2, bottom; 3, guide vane; 4, metal pile head; 5, metal probe; 6, rivet.

The specific embodiment

Below embodiment of the present utility model is described in detail in conjunction with the accompanying drawings, but protection domain of the present utility model is not limit by embodiment.

As shown in Figure 1, the structure of the utility model pile-formation sunken tube is as follows, it is made of the pipe shaft 1 of hollow tubular, bottom 2 and the metal pile head 4 that the edge circumferentially is provided with two guide vanes 3 at least, and pipe shaft 1 is a multi-segment structure, rivets by rivet 6 between adjacent two sections pipe shafts 1.Pipe shaft 1 lower end is located in bottom 2, and metal pile head 4 is arranged on the inside, lower end of bottom 2, and the cross section of pipe shaft 1 is circular, and the front end of metal pile head 5 is provided with a metal probe 5.

Claims

1. pile-formation sunken tube, it is by the pipe shaft (1) of hollow tubular, along circumferentially the bottom (2) and the metal pile head (4) of at least two guide vanes of setting (3) constitute, pipe shaft (1) lower end is located in bottom (2), metal pile head (4) is arranged on the inside, lower end of bottom (2), the front end of metal pile head (4) is provided with a metal probe (5), the cross section of pipe shaft (1) is circular, it is characterized in that pipe shaft (1) is a multi-segment structure, rivets by rivet (6) between adjacent two sections pipe shafts (1).