CN207143930U - Rotary Vibration Construction Steel Pipe Pile - Google Patents

Rotary Vibration Construction Steel Pipe Pile Download PDF

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Publication number
CN207143930U
CN207143930U CN201721055029.5U CN201721055029U CN207143930U CN 207143930 U CN207143930 U CN 207143930U CN 201721055029 U CN201721055029 U CN 201721055029U CN 207143930 U CN207143930 U CN 207143930U
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CN
China
Prior art keywords
steel plate
concrete body
steel
pile
whirling vibration
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201721055029.5U
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Chinese (zh)
Inventor
张建东
付浩
刘朵
徐剑
李明
宋光辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing Tech University
JSTI Group Co Ltd
Original Assignee
Nanjing Tech University
JSTI Group Co Ltd
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Filing date
Publication date
Application filed by Nanjing Tech University, JSTI Group Co Ltd filed Critical Nanjing Tech University
Priority to CN201721055029.5U priority Critical patent/CN207143930U/en
Application granted granted Critical
Publication of CN207143930U publication Critical patent/CN207143930U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
  • Piles And Underground Anchors (AREA)

Abstract

The utility model discloses a rotatory vibration construction steel-pipe pile, including fixed connection's pile body and pile head, the pile head includes fixed connection's concrete body and two at least steel sheets, and the concrete body is cavity revolution solid structure, and two at least steel sheets are along concrete body circumference evenly distributed, and the length direction of steel sheet is on a parallel with the axis direction of concrete body, and the steel sheet bottom is for gathering together type structure. Through the technical scheme in the utility model for the steel-pipe pile can reduce stake side frictional resistance and stake end resistance at the in-process of construction, can pierce through hard intermediate layer fast again, has effectively promoted the speed of pile, more has use value.

Description

Whirling vibration construction steel pile tube
Technical field
Bridge construction field is the utility model is related to, more particularly to a kind of whirling vibration construction steel pile tube.
Background technology
Steel-pipe pile is the product that China's civil construction develops rapidly, and it is mainly used in the base in the engineering constructions such as bunder Plinth structure.Steel-pipe pile typically uses static pressure method during piling construction at present, although this method durable resistance it is high, to week The collarette border influence small and construction period is short, the superiority with press-in, but the heavily fortified point such as grains of sand layer or laccolite for being mixed with cobble Hard place matter, or when running into reinforced concrete structure barrier existing for underground, because increasing end resistance, can cause bigger Vibration and Piling speed, and certain soil compaction amount can be produced in piling, the environment of surrounding is impacted.
In view of above-mentioned existing steel-pipe pile in piling construction present in static pressure method the defects of, the present inventor be based on be engaged in Such product design manufacture abundant for many years practical experience and professional knowledge, and coordinate the utilization of scientific principle, actively studied wound Newly, to found a kind of whirling vibration construction steel pile tube, it is made to have more practicality.
Utility model content
Pass through the technical scheme in the utility model so that steel-pipe pile can reduce shaft resistance during construction Power and end resistance, and can quick penetration hard interbedded layer, effectively enhance the speed of piling, more use value.
The technical scheme in the invention for solving the technical problem is:
Whirling vibration construction steel pile tube, including the pile body and pile crown being fixedly connected,
Pile crown includes the concrete body and at least two steel plates being fixedly connected, and concrete body is cavity rotation body structure, At least two steel plates are circumferentially uniformly distributed along concrete body, the length direction of steel plate parallel to concrete body axis direction, Steel plate bottom is gathering type structure.
Further, steel plate perpendicular to concrete body axis direction cross sectional shape be isosceles trapezoid distressed structure, It is the upper following arc-shaped structure to be parallel to each other, the wherein less circular arc of radius relative to the deformation part of isosceles trapezoid While close to concrete body axis.
Further, the gathering type structure of steel plate bottom is specially:Steel plate bottom surface is to close to the side of concrete body axis Tilt down upwards.
Further, bottom surface is 30 ~ 45 ° relative to the angle of inclination of concrete body axis.
Further, at least consistent reach through hole is provided with parallel to the circumferential direction of concrete body inside steel plate, In being generally aligned in the same plane on each steel plate through through hole by through bar connecting, for increasing the intensity of steel plate.
Further, three are provided with steel plate and runs through through hole, and in the vertical direction equidistantly arranges.
Further, concrete body is located at the inner side of steel plate relative to being provided with convex edge on the outside of steel plate, and convex It is provided with along bottom on the inclined-plane tilted down on steel plate inwall direction.
Further, concrete body is located at the thickness that the thickness on the inside of steel plate is less than on the outside of steel plate.
Further, bar-mat reinforcement is provided with concrete body, for increasing the intensity of pile crown.
After employing above-mentioned technical proposal, the utility model has following beneficial effect:
1st, by being fixedly connected with multiple steel plates on concrete body, jagged structure is formed in the end of steel-pipe pile, So that pile crown is running into the hard geology such as the grains of sand layer for being mixed with cobble or laccolite, or run into armored concrete knot existing for underground During structure barrier, it can be driven piles by the way of half reciprocating rotary, using reciprocating motion between the sawtooth of stake end come fragment earth or hard Interlayer, the contact area gathered structure and reduce steel plate and barrier of steel plate bottom, adds local pressure, effective to reduce End resistance so that steel sheet pile energy quick penetration hard interbedded layer, effectively enhance the speed of piling, more use value;
2nd, steel plate section be arranged to below be circular arc isosceles trapezoid distressed structure so that steel-pipe pile no matter towards which Individual direction rotates, and can effectively reduce pile side friction by the wedge angle and arc surface that steel plate side is formed;
3rd, steel plate bottom surface tilts down on the direction of concrete body axis so that what steel pipe column was driven piles downwards During, flexible extruding is carried out to the periphery of steel-pipe pile, reduces the influence to surrounding environment;
4th, by running through through hole on each steel plate of reinforcing bar successively UNICOM, it can play and improve pile crown shearing resistance and cracking resistance Ability so that pile crown overall structure is more stable;
5th, concrete body is located at the inner side of steel plate relative to being provided with convex edge on the outside of steel plate, and convex edge bottom is set Be equipped with the inclined-plane tilted down on steel plate inwall direction, can play certain casting effect when rotated;
6th, the part that concrete body is located on the outside of steel plate is bigger relative to inner side stress during piling, and it is thick Degree is set larger, and it is broken can effectively to prevent that outside concrete is squeezed in piling;
7th, the steel-pipe pile in the utility model combines the advantages of conventional steel-pipe pile, and forced side can be used in soft soil area Method is driven piles.
Brief description of the drawings
, below will be to embodiment or existing in order to illustrate more clearly of the embodiment of the present application or technical scheme of the prior art There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this Some embodiments described in application, for those of ordinary skill in the art, on the premise of not paying creative work, Other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the overall structure diagram of whirling vibration construction steel tubing string.
Fig. 2 is the structural representation of pile crown;
Fig. 3 is the upward view of pile crown;
Fig. 4 is the scheme of installation of steel plate;
Fig. 5 is the structural representation of steel plate;
Reference:Pile body 1, convex edge 11, inclined-plane 12, pile crown 2, concrete body 21, steel plate 22, through through hole 22a, pass through Wear reinforcing bar 22b.
Embodiment
In order that those skilled in the art more fully understand the technical scheme in the application, it is real below in conjunction with the application The accompanying drawing in example is applied, the technical scheme in the embodiment of the present application is clearly and completely described, it is clear that described implementation Example only some embodiments of the present application, rather than whole embodiments.It is common based on the embodiment in the application, this area The every other embodiment that technical staff is obtained under the premise of creative work is not made, it should all belong to the application protection Scope.
As shown in Fig. 1 ~ 5, whirling vibration construction steel pile tube, including the pile body 1 and pile crown 2 being fixedly connected,
Pile crown 2 includes the concrete body 21 and six blocks of steel plates 22 being fixedly connected, and concrete body 21 is cavity rotary body Structure, and bar-mat reinforcement is provided with it, for increasing the intensity of pile crown 2, six blocks of steel plates 22 are circumferential uniformly along concrete body 21 Distribution, the length direction of steel plate 22 is parallel to the axis direction of concrete body 21, and the bottom of steel plate 22 is gathering type structure, and it has Body is:The bottom surface of steel plate 22 tilts down on the direction of the axis of concrete body 21, wherein, angle of inclination is 45 °, is being beaten During stake, this inclined plane gradually to increase the extruding force of surrounding soil, and flexible fashion of extrusion effectively reduces Influence to surrounding environment.
In order to reduce pile side friction, steel plate 22 is isosceles ladder perpendicular to the cross sectional shape of the axis direction of concrete body 21 The distressed structure of shape, i.e., it is the upper following arc-shaped structure to be parallel to each other relative to the deformation part of isosceles trapezoid, wherein The less arc-shaped edges of radius are close to the axis of concrete body 21.
It is provided with what is equidistantly arranged from top to bottom on parallel to the circumferential direction of concrete body 21 inside steel plate 22 Three run through through hole 22a, be generally aligned in the same plane on each steel plate 22 in through through hole 22a by through reinforcing bar 22b connections, being used for Increase the intensity of steel plate 22, wherein a diameter of 10mm through through hole 22a.
The inner side that concrete body 21 is located at steel plate 22 is provided with convex edge 11, and convex edge relative to positioned at the outside of steel plate 22 11 bottoms are provided with the setting on the inclined-plane 12 tilted down on the inwall direction of steel plate 22, meter 11 and inclined-plane 12 so that steel Concrete on the inside of plate is higher than outside concrete thickness, can so play certain casting effect when rotated.
The thickness that concrete body 21 is located at the inner side of steel plate 22 is less than the thickness positioned at the outside of steel plate 22, the original so set Because being that the part that concrete body 21 is located on the outside of steel plate is bigger relative to inner side stress during piling, by its thickness What is set is larger, and it is broken can effectively to prevent that outside concrete is squeezed in piling.
The operation principle of whirling vibration construction steel pile tube in the utility model is as follows:
Multiple steel plates 22 are fixedly connected with concrete body 21, saw is formed in the end of steel-pipe pile by multiple steel plates 22 The structure of dentation, the hard geology such as the grains of sand layer for being mixed with cobble or laccolite can be being run into, or run into reinforcing bar existing for underground and mix During Xtah Crude Clay structure barrier, above-mentioned barrier is broken through by the way of half reciprocating rotary, at the same it is effective by following two structures End resistance and pile side friction of the above-mentioned broached-tooth design of reduction during piling:
1st, gather structure in the bottom design of steel plate 22, the method by reducing steel plate and bar contact area, add Local pressure, it is effectively reduced end resistance;
2nd, by the section of steel plate 22 be arranged to it is upper it is following be circular arc isosceles trapezoid distressed structure so that the side of steel plate 22 When face is bar contact, the crushing force local to barrier can be increased by the wedge angle that steel plate side is formed, passed through simultaneously Arc surface architectural characteristic, it can make again by separated barrier two sides respectively along the unresisted rotation of two arc surfaces, therefore effectively Reduce pile side friction.
Passing through above-mentioned structure so that steel-pipe pile can quickly work during downward piling and reciprocating rotary, Effectively raise the speed of piling.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or new using this practicality Type.A variety of modifications to these embodiments will be apparent for those skilled in the art, determine herein The General Principle of justice can be realized in other embodiments in the case where not departing from spirit or scope of the present utility model.Cause This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein The most wide scope consistent with features of novelty.

Claims (9)

1. whirling vibration construction steel pile tube, including the pile body being fixedly connected(1)And pile crown(2), it is characterised in that:
The pile crown(2)Including the concrete body being fixedly connected(21)At least two steel plates(22), the concrete body (21)For cavity rotation body structure, at least two steel plates(22)Along the concrete body(21)Circumferentially it is uniformly distributed, it is described Steel plate(22)Length direction parallel to the concrete body(21)Axis direction, the steel plate(22)Bottom is gathering type Structure.
2. whirling vibration construction steel pile tube according to claim 1, it is characterised in that the steel plate(22)Perpendicular to described Concrete body(21)The cross sectional shape of axis direction be isosceles trapezoid distressed structure, i.e., relative to isosceles trapezoid deformation it It is in the upper following arc-shaped structure to be parallel to each other, the wherein less arc-shaped edges of radius are close to the concrete body(21) Axis.
3. whirling vibration construction steel pile tube according to claim 2, it is characterised in that the steel plate(22)Gather bottom Type structure is specially:The steel plate(22)Bottom surface is to close to the concrete body(21)Tilted down on the direction of axis.
4. whirling vibration construction steel pile tube according to claim 3, it is characterised in that the bottom surface is relative to the coagulation Native body(21)The angle of inclination of axis is 30 ~ 45 °.
5. whirling vibration construction steel pile tube according to claim 1, it is characterised in that the steel plate(22)Inside is parallel In the concrete body(21)At least consistent reach through hole is provided with circumferential direction(22a), each steel plate(22)It is upper Run through through hole described in same plane(22a)By through reinforcing bar(22b)Connection, for increasing the steel plate(22)It is strong Degree.
6. whirling vibration construction steel pile tube according to claim 5, it is characterised in that the steel plate(22)On be provided with three It is individual to run through through hole(22a), and in the vertical direction equidistantly arranges.
7. whirling vibration construction steel pile tube according to claim 1, it is characterised in that the concrete body(21)It is located at The steel plate(22)Inner side relative to positioned at the steel plate(22)Outside be provided with convex edge(11), and the convex edge(11)Bottom Portion is provided with close to the steel plate(22)The inclined-plane tilted down on inwall direction(12).
8. whirling vibration construction steel pile tube according to claim 1, it is characterised in that the concrete body(21)It is located at The steel plate(22)The thickness of inner side is less than and is located at the steel plate(22)The thickness in outside.
9. whirling vibration construction steel pile tube according to claim 1, it is characterised in that the concrete body(21)Inside set Bar-mat reinforcement is equipped with, for increasing the pile crown(2)Intensity.
CN201721055029.5U 2017-08-22 2017-08-22 Rotary Vibration Construction Steel Pipe Pile Expired - Fee Related CN207143930U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721055029.5U CN207143930U (en) 2017-08-22 2017-08-22 Rotary Vibration Construction Steel Pipe Pile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721055029.5U CN207143930U (en) 2017-08-22 2017-08-22 Rotary Vibration Construction Steel Pipe Pile

Publications (1)

Publication Number Publication Date
CN207143930U true CN207143930U (en) 2018-03-27

Family

ID=61668800

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721055029.5U Expired - Fee Related CN207143930U (en) 2017-08-22 2017-08-22 Rotary Vibration Construction Steel Pipe Pile

Country Status (1)

Country Link
CN (1) CN207143930U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107513999A (en) * 2017-08-22 2017-12-26 苏交科集团股份有限公司 Quick pile driver

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107513999A (en) * 2017-08-22 2017-12-26 苏交科集团股份有限公司 Quick pile driver
CN107513999B (en) * 2017-08-22 2024-02-23 苏交科集团股份有限公司 Quick pile driver

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20180327

CF01 Termination of patent right due to non-payment of annual fee