CN201089931Y

CN201089931Y - Pile-driving sink pipe for foundation construction

Info

Publication number: CN201089931Y
Application number: CNU2007200149613U
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 building foundation construction equipment, in particular a pile driving immersed pipe for building foundation construction. The utility model is formed by a hollow pipe shaped pipe body, a bottom circumferentially provided with at least two guide vanes and a metal pile head, the bottom is arranged on the lower end of the pipe body, the metal pile head is arranged inside the lower end of the bottom, wherein, the section of the pipe body is of a square, the pipe body 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 a metal detecting stick. The utility model produces the pipe body into a multi-section type, which decreases the processing difficulty and the cost of the pile driving immersed pipe; 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. The joints of the pipe bodies are firm, thereby assuring the operation stability of the equipment.

Description

Foundation construction piling immersed tube

Technical field

The utility model relates to a kind of construction foundation working equipment, particularly a kind of construction foundation working piling immersed tube.

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, and the bottom-expanding equipment of expanded bore pile being lowered in the immersed tube cuts the earth, fetches earth again forms the expanded bore pile base cavity pocket.

The pipe shaft of present piling immersed tube is all-in-one-piece structure, and pipe shaft is very long, and processing is difficulty very, and the cost height, can't detect immersed tube when present immersed tube is constructed at the scene and whether arrive hardpan.Also there is a kind of piling immersed tube at present, this immersed tube is a segmentation structure, between the segmentation pipe shaft 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 problem that the utility model exists at above-mentioned prior art, and provide a kind of foundation construction with driving piles immersed tube, purpose is to improve the fastness of pipe shaft junction, simplified structure, increase bearing capacity of single pile, reduce cost, can detect immersed tube and arrived hardpan, convenient construction, immersed tube is easy to process.

The utility model realizes that the technical scheme of purpose is: foundation construction piling immersed 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 cross section of pipe shaft is square, the front end of metal pile head is provided with a metal probe, and pipe shaft is a multi-segment structure, connects by rivet between adjacent two sections pipe shafts.

The bottom of described bottom is provided with pin-and-hole.

The utility model compared with prior art, the rivet ways of connecting is adopted in the pipe shaft junction, has strengthened the fastness of junction, thereby has guaranteed the stability of equipment overall operation.And having guaranteed the proportionate relationship of pipe shaft and bottom internal diameter, it is simple and reasonable, practical, makes bearing capacity of single pile reach design standard.The utility model is made multisection type with pipe shaft, reduced piling immersed tube difficulty of processing and cost, be provided with a metal probe at the front end of metal pile head, it both can make ground hardpan survey meter, can in hardpan, extrude a very little sky again and ask, be beneficial to metal pile head and in immersed tube, extract.

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, pin-and-hole; 6, metal probe; 7, 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 utility model foundation construction piling immersed 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 3 of setting 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, wherein the cross section of pipe shaft 1 is square, and pipe shaft 1 is a multi-segment structure, connects by rivet 6 between adjacent two sections pipe shafts 1.The bottom of bottom 2 is provided with to be convenient to combine and the pin-and-hole 5 of throwing off usefulness with its matching used metal pile head 4.The front end of metal pile head 4 is provided with a metal probe 6.

Claims

Foundation construction with piling immersed 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 cross section of pipe shaft (1) is square, the front end of metal pile head (4) is provided with a metal probe (6), it is characterized in that pipe shaft (1) is a multi-segment structure, connects by rivet (6) between adjacent two sections pipe shafts (1).
2. foundation construction according to claim 1 is characterized in that with the piling immersed tube bottom of described bottom (2) is provided with pin-and-hole (5).