CN101250874B - Cast-in-situ large diameter pipe pile valve pile shoe as well as use method - Google Patents
Cast-in-situ large diameter pipe pile valve pile shoe as well as use method Download PDFInfo
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- CN101250874B CN101250874B CN2008100196897A CN200810019689A CN101250874B CN 101250874 B CN101250874 B CN 101250874B CN 2008100196897 A CN2008100196897 A CN 2008100196897A CN 200810019689 A CN200810019689 A CN 200810019689A CN 101250874 B CN101250874 B CN 101250874B
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Abstract
The invention relates to an air valve pile shoe of a cast-in-place big diameter pipe pile and an using method. The air valve pile shoe of the invention comprises a plurality of blocks of trapezoid steel plates with vertical grooves, the lower end is equipped with an inclined plane, which is jointed with a steel pipe which is arranged in the inner sides of an internal and an external cavities of a double layer casing, and the upper end is equipped with a movable hinge which is hinged with the steel pipe which is arranged on the outer side of the internal and external cavity of the double layer casing. Adjacent trapezoid steel plates are lapped to close according to the groove order, a transverse projection and a transverse recess which are arranged on the steel plate are matched to close and are clung on the outer side of an inner pipe of the internal and external cavity of the double layer casing. A vibrating head is opened, the internal and the external cavities of the double layer casing submerge into a foundation design depth under the protection of the air valve pile shoe, concrete is cast and lifted in the internal and the external cavities of the double layer casing, and a plurality of blocks of trapezoid steel plates on the air valve pile shoe are automatically separated. The defect that adjacent steel sheets and the lower end portions of the steel sheets and the inner pipe are not tightly lapped to lead to seepage is solved. The air valve pile shoe of a cast-in-place big diameter pipe pile prevents from seepaging, and has simple and ingenious structure, convenient operation, easy using and low cost.
Description
Technical field
The present invention relates to a kind of flap valve shoe and using method, particularly a kind of flap valve shoe and using method of cast-in-situ major diameter pipe pile.
Background technology
Before the present invention, in engineering constructions such as road, municipal administration, composite foundation construction method is present soft soil foundation class methods commonly used, comprise flexible pile composite foundation method (as broken stone pile, lime soil pile and cement mixing pile etc.) and rigid pile composite foundation method (as the CFG stake, PHC stake and PCC stake etc.).A kind of sleeve pipe that is used for weak sub-grade treatment become mould pouring pipe pile with large diameter machine (patent No.: ZL01273182-X) and soft foundation composite ground base construction method for field pouring pipe pile with large diameter (patent No.: ZL02112538-4) patent of invention adopt mode of vibration with steel internal and external double-layer cavity structure under the protection of flap valve shoe closure; sink to the ground projected depth; inject concrete by the concrete current divider to this even structure, this cavity structure is transferred in vibration then.The flap valve pile shoe structure separates when this cavity structure is transferred to automatically, makes it to form cast-in-place concrete thin-walled pile tube.
But still there is deficiency in this technology, the flap valve shoe is made up of as shown in Figure 1 the trapezoidal steel disc of several piece equal thickness, before entering soil layer, naturally overlap in order, because between the adjacent steel disc and overlap imprecision between steel disc bottom and the interior pipe, in work progress, moisture in the ground and mud are often inside and outside the bottom of flap valve shoe penetrates into bilayer sleeve the cavity structure, the concrete water-cement ratio and the composition that cause pouring into a mould change, thereby influence the quality of pile.On-the-spot detection data shows, because the infiltration of muddy water causes the concrete intensity of pile body to descend 36%, has had a strong impact on the quality of pile foundation.Simultaneously, before the flap valve shoe enters ground, need be it is temporarily fixing by iron wire of artificial usefulness, in internal and external casing cavity structure sinking process, by the vibration effect of stake machine, when also not carrying out ground, the flap valve shoe just very easily makes the iron wire fracture, lost fixation, on the other hand, fixedly iron wire also can make when carrying in the flap valve shoe sometimes and not open, cause the repetition immersed tube, lose time, the man power and material.
Summary of the invention
Purpose of the present invention just is to overcome above-mentioned defective, develops shoe of a kind of novel cast-in-situ major diameter pipe pile flap valve and using method.
Technical scheme of the present invention is:
The shoe of a kind of cast-in-situ major diameter pipe pile flap valve, form cast-in-place thin-wall pipe pile machine with cavity structure inside and outside gantry stand, vibration head, the bilayer sleeve, its major technique is characterised in that the flap valve shoe is made up of the trapezoidal steel plate of the vertical tongue and groove of several piece band, the lower end of trapezoidal steel plate is the inclined-plane, fit with the inboard steel pipe of cavity structure inside and outside the bilayer sleeve, the upper end has the outside steel pipe of hinges and the inside and outside cavity structure of bilayer sleeve hinged.
Another technical scheme of the present invention is:
A kind of cast-in-situ major diameter pipe pile flap valve shoe using method, its major technique step is as follows:
(1) ground, cast-in-place thin-wall pipe pile airport is in place, and cavity structure inside and outside the bilayer sleeve is located on the ground;
(2) the trapezoidal steel plate of flap valve shoe is pressed tongue and groove order overlap joint closure, laterally projecting part, transverse recess on the adjacent trapezoidal steel plate are partly mated closure, and are close to the interior pipe outside of the inside and outside cavity structure of bilayer sleeve;
(3) Vibration on Start-up head is lowered into the ground projected depth with cavity structure inside and outside the bilayer sleeve in the protection of flap valve shoe;
(4) fluid concrete in the cavity structure inside and outside bilayer sleeve;
(5) promote the inside and outside cavity structure of bilayer sleeve, the trapezoidal steel plate of the several piece in the flap valve shoe separates automatically, and the concrete of cast forms thin-wall pipe pile in ground.
Advantage of the present invention and effect are that the flap valve shoe overlap joint that overcomes does not in the past sternly cause shortcomings such as ground infiltration and infiltration mud, avoids adopting in advance the step of iron wire hoop around the flap valve shoe yet.Simple in structure, ingenious, easy to operate, use easily, cost is low.
Other advantage of the present invention and effect will continue to describe below.
Description of drawings
Fig. 2---structural principle schematic diagram of the present invention.
Fig. 3---shoe overlap joint figure of the present invention.
Fig. 4---the invention process figure.
The specific embodiment
As Fig. 2, Fig. 3 and shown in Figure 4, novel flap valve shoe is made up of the trapezoidal steel plate 1 of several piece, be respectively arranged with vertical projection 2 and vertical recess 3 on every fast trapezoidal steel plate 1 and arranged on left and right sides, vertical projection 2 on every adjacent two blocks of trapezoidal steel plates 1 and vertical recess 3 couplings, form tongue and groove, form the sealing of first road; Middle part on every trapezoidal steel plate 1 and arranged on left and right sides is provided with horizontal projection 4 and transverse recess part 5 respectively, and horizontal projection 4 on every adjacent two blocks of trapezoidal steel plates 1 and transverse recess part 5 couplings form the sealing of second road; Vertical recess 3 of every block of trapezoidal steel plate 1 is pasted rubber gasket 8, and the lower end of every block of trapezoidal steel plate 1 is inclined-plane 6, also pastes rubber gasket 8 on the inclined-plane 6, and all rubber gaskets 8 form three seals.
During pile foundation construction, cavity structure inside and outside the bilayer sleeve 9 is placed on the position of pile, manually will overlap closed by the flap valve shoe 10 that the trapezoidal steel disc 1 of several piece is formed in order, vertical projection 2 on every adjacent two blocks of trapezoidal steel plates 1 forms tongue and grooves with vertical recess 3 couplings, horizontal projection 4 on every adjacent two blocks of trapezoidal steel plates 1 forms sealing with transverse recess part 5 couplings, fits naturally with the inside and outside cavity structure 9 of bilayer sleeve and form sealing in the inclined-plane, lower end 6 of every block of trapezoidal steel plate 1.Because tongue-and-groove structure has been removed the trouble and the waste that the trapezoidal steel plate 1 of several piece are bound together with steel wire from; Then, Vibration on Start-up 11, cavity structure inside and outside the bilayer sleeve 9 is sunk to the projected depth of consolidated subsoil, fluid concrete, the inside and outside cavity structure 9 of this bilayer sleeve is transferred in vibration then, flap valve shoe 10 separates when cavity structure 9 is transferred to inside and outside this bilayer sleeve automatically, vertical projection 2 on promptly every adjacent two blocks of trapezoidal steel plates 1 separates when rising automatically with the tongue and groove that vertical recess 3 couplings form, and the horizontal projection 4 on every adjacent two blocks of trapezoidal steel plates 1 mates with transverse recess part 5 and separates being connected automatically of forming; At last, make it to form cast-in-place concrete thin-walled pile tube.Because three road closing seam effects of this flap valve shoe have prevented that underground water and mud from having penetrated in the internal and external casing cavity structure 9, guaranteed the quality of concrete pouring.
Protection scope of the present invention is not limited only to the description of present embodiment.
Claims (2)
1. cast-in-situ major diameter pipe pile flap valve shoe, this flap valve shoe can with gantry stand, vibration head, the inside and outside cavity structure of bilayer sleeve is formed cast-in-place thin-wall pipe pile machine, it is characterized in that the flap valve shoe is made up of the trapezoidal steel plate of the vertical tongue and groove of several piece band, the lower end of trapezoidal steel plate is the inclined-plane, fit with the inboard steel pipe of cavity structure inside and outside the bilayer sleeve, the upper end has the outside steel pipe of hinges and the inside and outside cavity structure of bilayer sleeve hinged, on the adjacent trapezoidal steel plate of vertical tongue and groove of flap valve shoe laterally projecting part is set respectively, the transverse recess part, laterally projecting part, the transverse recess part is coupling one by one, the trapezoidal steel plate tongue and groove surface longitudinal of flap valve shoe is pasted with rubber gasket, laterally is pasted with rubber gasket on the lower end on the trapezoidal steel plate inclined-plane of flap valve shoe.
2. a kind of cast-in-situ major diameter pipe pile flap valve shoe using method according to claim 1, its step is as follows:
(1) ground, cast-in-place thin-wall pipe pile airport is in place, and cavity structure inside and outside the bilayer sleeve is located on the ground;
(2) the trapezoidal steel plate of flap valve shoe is pressed tongue and groove order overlap joint closure, laterally projecting part, transverse recess on the adjacent trapezoidal steel plate are partly mated closure, and are close to the interior pipe outside of the inside and outside cavity structure of bilayer sleeve;
(3) Vibration on Start-up head is lowered into the ground projected depth with cavity structure inside and outside the bilayer sleeve in the protection of flap valve shoe;
(4) fluid concrete in the cavity structure inside and outside bilayer sleeve;
(5) promote the inside and outside cavity structure of bilayer sleeve, the trapezoidal steel plate of the several piece in the flap valve shoe separates automatically, and the concrete of cast forms thin-wall pipe pile in ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100196897A CN101250874B (en) | 2008-03-12 | 2008-03-12 | Cast-in-situ large diameter pipe pile valve pile shoe as well as use method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100196897A CN101250874B (en) | 2008-03-12 | 2008-03-12 | Cast-in-situ large diameter pipe pile valve pile shoe as well as use method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101250874A CN101250874A (en) | 2008-08-27 |
| CN101250874B true CN101250874B (en) | 2010-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100196897A Expired - Fee Related CN101250874B (en) | 2008-03-12 | 2008-03-12 | Cast-in-situ large diameter pipe pile valve pile shoe as well as use method |
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| Country | Link |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102296598B (en) * | 2011-06-20 | 2013-05-15 | 河海大学 | Construction method of PCC (cast-in-place concrete large-diameter pipe) pile |
| CN103205966A (en) * | 2013-04-16 | 2013-07-17 | 中交天津港湾工程设计院有限公司 | Cast-in-place multiple-pyramid hinge-type hollow-steel pile shoe of polygonal concrete hollow pile |
| CN104074187B (en) * | 2014-07-15 | 2016-03-23 | 戴元志 | Interior valve type pile shoe and construction usage method |
| CN107476286B (en) * | 2017-09-18 | 2022-08-05 | 南京工业大学 | Valve type concrete sheet pile hole forming device and hole forming method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87205950U (en) * | 1987-03-31 | 1987-11-25 | 交通部第二航务工程局科研设计所 | Pile pipe endcover device |
| CN2515246Y (en) * | 2001-12-31 | 2002-10-09 | 河海大学 | Double pipe mould forming large diameter field pouring tubular pile machine used for soft ground |
-
2008
- 2008-03-12 CN CN2008100196897A patent/CN101250874B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87205950U (en) * | 1987-03-31 | 1987-11-25 | 交通部第二航务工程局科研设计所 | Pile pipe endcover device |
| CN2515246Y (en) * | 2001-12-31 | 2002-10-09 | 河海大学 | Double pipe mould forming large diameter field pouring tubular pile machine used for soft ground |
Non-Patent Citations (1)
| Title |
|---|
| 全文. |
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| CN101250874A (en) | 2008-08-27 |
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Granted publication date: 20100609 Termination date: 20140312 |