CN202530449U

CN202530449U - Tapered pipe pile with bidirectional misaligned through holes

Info

Publication number: CN202530449U
Application number: CN2012200453402U
Authority: CN
Inventors: 雷金波
Original assignee: Nanchang Hangkong University
Current assignee: Nanchang Hangkong University
Priority date: 2012-02-13
Filing date: 2012-02-13
Publication date: 2012-11-14
Anticipated expiration: 2022-02-13

Abstract

Disclosed is a tapered pipe pile with bidirectional misaligned through holes. A plurality of groups of Y-directional misaligned through holes and X-directional misaligned through holes are arranged on the wall of the tapered pipe pile, and the Y-directional misaligned through holes and the X-directional misaligned through holes in the same group are positioned on the same plane. The tapered pipe pile with the bidirectional misaligned through holes has the advantages that the tapered pipe pile with the bidirectional misaligned through holes is arranged in a soft foundation, owing to the characteristics of the tapered pipe pile, a small-diameter end of the tapered pipe pile is positioned on the lower side to make full use of side friction of pile soil particularly in the construction period, the soil compacting effect of the tapered pipe pile can be properly reduced, and excess pore water pressure is generated in the pile sinking process.

Description

A kind of two-way not to the bore conical pile tube

Technical field

The utility model relates to a kind of conical pipe pile, relates in particular to a kind of two-way not to the bore conical pile tube.

Background technology

When at present existing conical pipe pile was constructed, particularly the hammer piling mode produced soil compaction effect and excess pore water pressure, very easily caused adjacent stake skew, even broken pile.PTC type conical pipe pile is used for the deep soft soil foundation treatment project, and main purpose is control foundation settlement and settlement after construction, improves bearing capacity of foundation soil, and conical pipe pile self bearing capacity is not a subject matter.The main cause that foundation settlement produces is because the discharge of soil body mesopore water under the outer load effect.Concerning deep soft soil foundations such as speedway, high-speed railway, road in airport, control its sedimentation, mostly is to control its settlement amount after construction, and its settlement amount after construction is controlled in the settlement amount after construction critical field.If produce more settling amount as far as possible in construction periods such as embankment, dykes and dams, roads, should water discharge as much as possible in native mesopore be reduced the water content of soil, then its settlement amount after construction will be able to reduce, and reach the purpose of control sedimentation and settlement amount after construction.

Summary of the invention

It is a kind of two-way not to the bore conical pile tube that the purpose of the utility model is to provide; Form two-way not to the bore conical pile tube; The soil body side friction of polywater effect that makes full use of the conical pipe pile cavity and performance conical pipe pile side, every linear meter(lin.m.) be provided with 2 groups two-way not to perforation.

The utility model is realized like this; It comprises conical pipe pile, Y to not to perforation, X to not to perforation; It is characterized in that having on the conical pipe pile lining some groups of Y to not to perforation and X to not to perforation, same group of Y to not to perforation and X to not to boring a hole not at grade.

The technique effect of the utility model is: be provided with two-way not to the bore conical pile tube in the soft foundation; Particularly in the construction period, because the conical pipe pile own characteristic, the end that diameter is little is descending; Help bringing into play a side friction of the side soil body; The soil compaction effect of conical pipe pile also can suitably reduce simultaneously, because pile driving process can produce the excess pore water pressure, water in soil can get in the conical pipe pile rapidly on the other hand.In the construction intermittent phase, under the hydrostatic pressure effect, along with the dissipation that excess pore water is pressed, water in soil also can get into rapidly in the conical pipe pile hole.If run into mucky soil, mud can not flow in the conical pipe pile perforation through two-way.If water is many in the hole, then can take the mode of drawing water that it is got rid of.Along with water level in the hole reduces, water in soil can infiltrate in the conical pipe pile again, makes the water content of soil be able to further reduction, and the intensity of soil is improved, and bearing capacity of foundation soil strengthens.Two-wayly can effectively reduce adjacent stake soil compaction effect during not to the bore conical tube pile construction, cleaning ambient, two-way also do not have energy-conservation advantage to the bore conical pile tube.

Description of drawings

Fig. 1 is the sectional drawing of the utility model.

Fig. 2 is the sectional drawing of the utility model A-A.

Fig. 3 is the sectional drawing of the utility model B-B.

Fig. 4 is the sectional drawing of the utility model C-C.

Fig. 5 is the sectional drawing of the utility model D-D.

In the drawings, 1, conical pipe pile 2, Y to not to bore a hole 3, X is to perforation.

The specific embodiment

Like Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Figure 5, the utility model realizes like this, have on conical pipe pile 1 wall some groups of Y to not to bore a hole 2 with X to not to boring a hole 3, same group of Y to not to bore a hole 2 with X to not to boring a hole 3 at grade.Two-wayly the bore conical pile tube is not only needed to adopt special conical pipe pile punching block produce on request in factory; Method is with existing conical pipe pile production technology; Site operation adopts silent piling method pile sinking; Other operations are considered its problem of stress concentration with existing conical pipe pile construction technology, must not adopt pile vibrosinking and hammer piling mode during this structure construction.

Claims

One kind two-way not to the bore conical pile tube; It comprises conical pipe pile, Y to not to perforation, X to not to perforation; It is characterized in that having on the pile lining of conical pipe pile some groups of Y to not to perforation and X to not to perforation, same group of Y to not to perforation and X to not to boring a hole not at grade.