CN201089912Y

CN201089912Y - Sink pipe for construction

Info

Publication number: CN201089912Y
Application number: CNU2007200149223U
Authority: CN
Inventors: 徐志明; 杨国龙
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 for buildings 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) and a metal pile head (4), wherein, the section of the pipe body (1) is of a square, the pipe body (1) has a multi-section type structure, the sections are connected through rivets, the section of a joint between two sections of adjoining pipe bodies has a thread structure with a square exterior and a round interior. Compared with the prior art, the utility model assures the proportion relation between the pipe body and the inner diameter of the bottom, has a simple and rational structure and strong practicability, and ensures that the single pile bearing force achieves the design standard. 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 utility model is easy to construct in the projects and contributes to be popularized and applied.

Description

A kind of immersed tube for building

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 for building 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, 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 immersed tube is all-in-one-piece structure, and pipe shaft is very long, and processing is difficulty very, and the cost height.Also there is at present a kind of immersed tube that use the coastal area that is suitable for, between the segmentation 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 problem that the utility model exists at above-mentioned prior art, and a kind of immersed tube for building is provided, purpose be simplified structure, increase bearing capacity of single pile, reduce cost, pipe shaft connects stablely, makes immersed tube processing convenient.

The utility model realizes that the technical scheme of purpose is: a kind of immersed tube for building, it is made of pipe shaft, bottom and the metal pile head of hollow tubular, wherein the cross section of pipe shaft is square, pipe shaft is a multi-segment structure, by rivet, the cross section of junction is the structure of square-outside and round-inside shape between adjacent two sections pipe shafts between each section.

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

The utility model compared with prior art adopts rivet owing between the segmentation pipe shaft, so the junction is stable.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, has reduced piling immersed tube difficulty of processing and cost, and the utility model is constructed in engineering easily, is beneficial to apply.

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; 4, metal pile head; 5, pin-and-hole; 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 a kind of pile-formation sunken tube for building of the utility model is as follows: it is made of pipe shaft 1, bottom 2 and the metal pile head 4 of hollow tubular, wherein the cross section of pipe shaft 1 is square, pipe shaft 1 is a multi-segment structure, connect by rivet 6 between each section, the cross section of junction is the structure of square-outside and round-inside shape between adjacent two sections pipe shafts 1.The bottom of bottom 2 is provided with pin-and-hole 5.

Claims

1. immersed tube for building, it is made of pipe shaft (1), bottom (2) and the metal pile head (4) of hollow tubular, wherein the cross section of pipe shaft (1) is square, it is characterized in that pipe shaft (1) is a multi-segment structure, by rivet (6) riveted joint, the cross section of junction is the structure of square-outside and round-inside shape between adjacent two sections pipe shafts (1) between each section.

2. pile-formation sunken tube for building according to claim 1 is characterized in that the bottom of described bottom (2) is provided with pin-and-hole (5).