CN101705682A - Valve pile tip structure device of cast-in-place X-shaped concrete pile and using method thereof - Google Patents

Valve pile tip structure device of cast-in-place X-shaped concrete pile and using method thereof Download PDF

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Publication number
CN101705682A
CN101705682A CN200910213162A CN200910213162A CN101705682A CN 101705682 A CN101705682 A CN 101705682A CN 200910213162 A CN200910213162 A CN 200910213162A CN 200910213162 A CN200910213162 A CN 200910213162A CN 101705682 A CN101705682 A CN 101705682A
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China
Prior art keywords
pile
shaped
valve
flap valve
cast
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CN200910213162A
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CN101705682B (en
Inventor
刘汉龙
王智强
丁选明
孙俊康
雍君
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Nanjing Hehai Technology Co Ltd
Hohai University HHU
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Nanjing Hehai Technology Co Ltd
Hohai University HHU
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Publication of CN101705682B publication Critical patent/CN101705682B/en
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Abstract

The invention relates to a valve pile tip structure device of a cast-in-place X-shaped concrete pile and a using method thereof. In the valve pile tip structure device, an X-shaped pile die is fixedly connected with a connecting section, the lower end of the connecting section is fixedly connected with a transition section, the lower part of the transition section is rotatablely connected with the upper part of a strengthening rib through a connecting hinge, and the strengthening rib is fixedly connected with a valve; and when the X-shaped pile die is dropped down, the valve pile tip is aligned with a pile position, and a curved surface triangular steel sheet is closed and inserted in a soil body, the X-shaped pile die is vibrated to reach a designed depth so that concrete enters an inner cavity of the valve, and the X-shaped pile die is pulled up to automatically open the curved surface triangular steel sheet so as to form the cast-in-place X-shaped concrete pile. The valve pile tip structure device overcomes the defects that a precast pile shoe is precast in a factory, has long consumed time, large volume and inconvenient transportation, moves and deflects downwards and even breaks away from the pile die, cannot be used repeatedly, has high manufacturing cost, and the like. The valve pile tip structure device avoids repeated physical work, does not need to be precast in the factory, shortens the construction period, and reduces the cost.

Description

A kind of valve pile tip structure device of cast-in-place X-shaped concrete pile and using method
Technical field
The present invention relates to a kind of sharp structure, particularly a kind of valve pile tip structure device of cast-in-place X-shaped concrete pile and using method.
Background technology
Before the present invention, utilized impact pile driving method or vibrosinking, the steel sleeve that will have the precast reinforced concrete pile boots sinks in the soil, then limit tube drawing limit concrete perfusion and the device or the method for pile.If when being furnished with reinforcing bar, then before concreting, hang cage of reinforcement earlier.Utilize hammer piling equipment immersed tube, tube drawing, be called hammer hidden pipe caisson pile; When utilizing vibration sinking tube, the tube drawing of vibrator, be called vibrator pipe sinking cast-in-place pile.Also can adopt the double-acting method immersed tube of vibration-impact.
Cast-in-place X-shaped concrete pile (the patent No.: 200710020306.3) because it has bigger unit volume material specific area, thereby can under the prerequisite that does not increase material usage, improve bearing capacity of single pile greatly, thereby improve the ratio of performance to price.Stake mould lower end connects when construction is the prefabricated shoe (patent No.: 200720036892.6) in this cast-in-place X-shaped stake.So-called prefabricated shoe is to be prefabricated in the factory, length consuming time, and volume is big, and diameter is generally greater than 50cm, and transportation is inconvenient; Also to reinforcing bar be set for increasing rigidity, rubber washer or straw rope will be set during construction between stake mould and precast pile tip to reduce the punching shear failure of a mould to prefabricated shoe in inside.Main cause just is that a prefabricated shoe and a stake mould do not form an integral body, so it can only move downward, and can not move upward, and all can cause shoe to move downward skew when running into hard thing usually when pile sinking, even breaks away from a stake mould.In addition, prefabricated shoe can not reuse, and prefabricated shoe is permanent behind the pile stays in the ground, can not reclaim, and waste material, cost is too high, and this is a fatal defective for the construction construction works.
Summary of the invention
Purpose of the present invention just is to overcome above-mentioned defective, design, a kind of valve pile tip structure device of cast-in-place X-shaped concrete pile of development and using method.
Technical scheme of the present invention:
A kind of valve pile tip structure device of cast-in-place X-shaped concrete pile, X-shaped stake mould lower end connects flap valve, its major technique is characterised in that X-shaped stake mould fixedlys connected with linkage section, fixedly connected with changeover portion in the linkage section lower end, the changeover portion bottom is reined in top by the connection hinge with reinforcement and is rotationally connected, and strengthens reining in flap valve fixedlying connected.
Another technical scheme of the present invention is:
A kind of valve pile tip structure device of cast-in-place X-shaped concrete pile using method, its major technique step is:
(1) when pile sinking comes into effect, the X-shaped stake mould that the bottom is connected with flap valve falls under the deadweight effect, with flapper pile tip align piles position, by manually with four curved surface triangle steel disc closures;
(2) X-shaped stake mould continues then, after the curved surface triangle steel disc in the flap valve contacts with the ground soil body and inserts the soil body, remains closed at the counter-force effect lower surface camber triangle steel disc flap valve of the soil body;
(3) by vibration or hammering X-shaped stake mould is sunk to the soil from the face of land, until reaching projected depth;
(4), make concrete enter the flap valve inner chamber by the cavity in the middle of changeover portion and the linkage section by X-shaped stake mould fluid concrete;
(5) after fluid concrete finishes, on pull out X-shaped stake mould, flap valve moves upward thereupon, the curved surface triangle steel disc in the flap valve is opened automatically, concrete enters into the X-shaped counterbore, forms cast-in-place X-shaped concrete pile.
Advantage of the present invention and effect are that this is the sharp structure of a kind of whole stake, utilize conical closure to stablize tight characteristics, it is special-shaped reversed cone shape structure that flap valve adopts up big and down small curved surface triangle steel disc and the reinforcement that can significantly improve triangle steel disc integral rigidity to rein in closed formation outline; Connect the X-shaped changeover portion that hinge reins in the reinforcement of bottom with top and connect into an integral body, good integrity is so can not be out of shape, can not get stuck, damage during closure; X-shaped cone when closed is closed tight, opens especially easily again when pulling out on the sleeve pipe, and water or silt particle enter the stake pipe when having avoided pile sinking influences pile quality or can't pile and need be with rubber washer or straw rope pad defective such as between pile body template and precast pile tip; Flap valve and top X-shaped stake mould (immersed tube) connect into an integral body, can move arbitrarily with top stake mould, have avoided occurring phenomenons such as precast pile tip card pipe, have simplified construction technology.Owing to avoided being prefabricated in the factory in advance flap valve, therefore shortened the duration, avoided lifting the heavy physical labor of pile transport point, reduced human cost; Flap valve can reuse, so can reduce the cost of raw material greatly, reduces cost, and this is an important factors in constructions such as road.
It is loaded down with trivial details that the present invention has overcome prefabricated shoe construction technology, long construction period, defectives such as cost height, can move with top X-shaped stake mould, avoid the manual labor that repeats, not need to be prefabricated in the factory, therefore shortened construction period greatly,, greatly reduced cost owing to can reuse.Be a kind of economical and practical pointed formula of stake, the on-the-spot effect of using is very good.
Other advantage of the present invention and effect will be further described below.
Description of drawings
Fig. 1---cast-in-place X-shaped concrete pile flapper pile tip of the present invention and stake mode structure figure.
Fig. 2---structure chart when cast-in-place X-shaped concrete pile flapper pile tip of the present invention is closed.
Fig. 3---cast-in-place X-shaped concrete pile flapper pile tip vertical view of the present invention.
Fig. 4---A-A sectional view among Fig. 3.
The specific embodiment
Shown in Fig. 1,2,3,4:
Changeover portion 4 bottoms of the X-shaped of steel are reined in 2 hingedly by connecting hinge 3 and reinforcement, and flap valve 1 is made of four up big and down small curved surface triangle steel discs; Strengthen reining in 2 and be positioned at the outside of flap valve 1, and be in the centre position of flap valve 1, strengthen reining in 2 and be fixedly connected into an integral body with flap valve 1; 2 upper end is reined in each reinforcement of connection hinge 3 flexible connections; When flap valve 1 is not closed (as shown in Figure 1), its four curved surface triangle steel discs separate separately, (as shown in Figure 2) four curved surface triangles steel disc rotates in connecting hinge 3 by strengthening reining in 2 upper ends when closed, its lower end is that 1 point of flap valve is gathered to the centre, integral body is special-shaped reversed cone shape, and the lower end of four of flap valve 1 curved surface triangle steel discs can closely combine like this.When four curved surface triangle steel discs open (promptly not closed) and the angle angle between when closed can between 15～45 degree, select, mainly be penetration capacity decision according to design; Inserts in stake mould inside when four curved surface triangle steel discs open (promptly not closed) can fall in the X-shaped cavity of the soil body smoothly by the circular cavity of centre.
Changeover portion 4 outlines are X-shaped, and internal cavity is circular, and longitudinal section is inverted trapezoidal, and its projection at horizontal plane was positioned at the inside of top pile body template in the projection of horizontal plane when the flap valve 1 that has so just guaranteed the bottom was opened.Because the internal cavity of changeover portion 4 is circular, the cross section of cross sectional shape and X-shaped stake mould 6 is difference to some extent, and inconvenience directly is connected with X-shaped stake mould 6 at the construction field (site), so linkage section 5 connects X-shaped stake mould 6 and changeover portion 4.
Linkage section 5 outlines are X-shaped (as shown in Figure 3), are fixedly connected to form integral body with changeover portion 4, and the cross sectional shape of linkage section 5 and X-shaped stake mould 6 are in full accord, and internal cavity is X-shaped, and its effect is conveniently with after X-shaped stake mould 6 docks to be welded to connect; Flap valve 1 is opened the back outline and also is X-shaped; Casting resin can enter counterbore by the cavity in the middle of changeover portion 4 and the linkage section 5, forms the X-shaped stake;
Changeover portion 4 is fixedlyed connected with the linkage section 5 of X-shaped, and the linkage section 5 of X-shaped is fixedlyed connected with X-shaped stake mould 6, forms an overall structure.Owing to be overall structure, therefore the stake point of flap valve 1 can be with the arbitrary motion about in the of 6 of X-shaped stake mould, can not come off during pile sinking, be offset, and the prefabricated shoe of prior art does not form integral body with the stake mould, can only move downward, run into hard thing during pile sinking and can cause skew even break away from the stake mould, so X-shaped stake point has bigger superiority.
Fixedly connected mode in this example all adopts welding.
When pile sinking comes into effect, the X-shaped stake mould 6 that is connected with flapper pile tip is fallen under the deadweight effect, by flap valve 1 closure that manually four curved surface triangle steel discs is constituted, with the sharp align piles of the stake position of flap valve 1; X-shaped stake mould 6 continues to fall then, and after the stake point of flap valve 1 contacted with the ground soil body and inserts the soil body, under the counter-force effect of the soil body, four curved surface triangle steel discs remained closure state; By vibration or hammering the X-shaped stake mould 6 that the lower end is connected with this flap valve 1 is sunk to the soil from the face of land, until reaching projected depth; In sinking to process, it is crowded more tight more that four curved surface triangle steel discs of flap valve 1 are subjected to the surrounding soil extruding, closed tight; At this moment, by X-shaped stake mould 6 fluid concretes, make concrete enter flap valve 1 inner chamber by the cavity in the middle of changeover portion 4 and the linkage section 5; After fluid concrete finishes, on pull out X-shaped stake mould 6, flap valve 1 is also along with moving upward, under the concrete pressure and deadweight effect in flap valve 1 inner chamber, four curved surface triangle steel discs of flap valve 1 are opened automatically, and concrete promptly enters into the X-shaped counterbore, forms cast-in-place X-shaped concrete pile at last.
Protection scope of the present invention is not limited only to the description of present embodiment.

Claims (8)

1. valve pile tip structure device of cast-in-place X-shaped concrete pile, X-shaped stake mould lower end connects flap valve, it is characterized in that X-shaped stake mould lower end fixedlys connected with changeover portion, and the changeover portion bottom is reined in top with reinforcement and is rotationally connected by connecting hinge, and reinforcement is reined in flap valve and is fixedlyed connected.
2. a kind of valve pile tip structure device of cast-in-place X-shaped concrete pile according to claim 1 is characterized in that X-shaped stake mould fixedlys connected with linkage section, and linkage section is fixedlyed connected with changeover portion.
3. a kind of valve pile tip structure device of cast-in-place X-shaped concrete pile according to claim 1 is characterized in that flap valve is to be made of four curved surface triangle steel discs.
4. according to claim 1 or 3 described a kind of valve pile tip structure device of cast-in-place X-shaped concrete pile, formed angle angle is between 15～45 degree when it is characterized in that the flap valve lower end is opened and when closed.
5. a kind of valve pile tip structure device of cast-in-place X-shaped concrete pile according to claim 4, outline is an X-shaped when it is characterized in that flap valve is opened.
6. a kind of valve pile tip structure device of cast-in-place X-shaped concrete pile according to claim 1 is characterized in that strengthening reining in being positioned at the flap valve outside, and outer in the centre position of flap valve, forms an integral body.
7. a kind of valve pile tip structure device of cast-in-place X-shaped concrete pile according to claim 1, it is characterized in that the changeover portion outline is an X-shaped, longitudinal section is inverted trapezoidal, and its projection at horizontal plane is positioned at the inside of top pile body template in the projection of horizontal plane when the bottom flap valve is opened.
8. a valve pile tip structure device of cast-in-place X-shaped concrete pile using method the steps include:
(1) when pile sinking comes into effect, the X-shaped stake mould that the bottom is connected with flap valve falls under the deadweight effect, with flapper pile tip align piles position, by manually with four curved surface triangle steel disc closures;
(2) X-shaped stake mould continues then, after the curved surface triangle steel disc in the flap valve contacts with the ground soil body and inserts the soil body, remains closed at the counter-force effect lower surface camber triangle steel disc flap valve of the soil body;
(3) by vibration or hammering X-shaped stake mould is sunk to the soil from the face of land, until reaching projected depth;
(4), make concrete enter the flap valve inner chamber by the cavity in the middle of changeover portion and the linkage section by X-shaped stake mould fluid concrete;
(5) after fluid concrete finishes, on pull out X-shaped stake mould, flap valve moves upward thereupon, the curved surface triangle steel disc in the flap valve is opened automatically, concrete enters into the X-shaped counterbore, forms cast-in-place X-shaped concrete pile.
CN 200910213162 2009-10-30 2009-10-30 Valve pile tip structure device of cast-in-place X-shaped concrete pile and using method thereof Expired - Fee Related CN101705682B (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101864769A (en) * 2010-07-02 2010-10-20 河海大学 Cast-in-place X-shaped large-diameter hollow concrete pile and construction method thereof
CN102797262A (en) * 2011-05-26 2012-11-28 常雷 Construction method for cast-in-situ triangular composite foundation pile and special hole former therefor
CN104790390A (en) * 2015-05-06 2015-07-22 河海大学 Pile mould of cast-in-place X-shaped large-diameter hollow orientated steel fiber reinforced concrete and construction method
CN107476286A (en) * 2017-09-18 2017-12-15 南京工业大学 A kind of flapper-type concrete slab pile pore-forming device and forming hole method
CN110939307A (en) * 2019-12-20 2020-03-31 王子佳 Base for positioning tower pole for electric power laying construction
CN112664142A (en) * 2021-01-19 2021-04-16 贵阳云海岩土工程有限公司 Deep layer ramming pile-expanding machine drill
CN113356207A (en) * 2021-06-17 2021-09-07 浙江工业职业技术学院 Continuous extrusion equipment for filling piles

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101864769A (en) * 2010-07-02 2010-10-20 河海大学 Cast-in-place X-shaped large-diameter hollow concrete pile and construction method thereof
CN101864769B (en) * 2010-07-02 2012-05-09 河海大学 Cast-in-place X-shaped large-diameter hollow concrete pile and construction method thereof
CN102797262A (en) * 2011-05-26 2012-11-28 常雷 Construction method for cast-in-situ triangular composite foundation pile and special hole former therefor
CN102797262B (en) * 2011-05-26 2016-08-03 常雷 The construction treating methods of cast-in-situ triangular compound foundation pile
CN104790390A (en) * 2015-05-06 2015-07-22 河海大学 Pile mould of cast-in-place X-shaped large-diameter hollow orientated steel fiber reinforced concrete and construction method
CN104790390B (en) * 2015-05-06 2016-08-17 河海大学 The stake mould of a kind of cast-in-place X-shaped large-diameter hollow orientation steel fiber reinforced concrete stake and construction method
CN107476286A (en) * 2017-09-18 2017-12-15 南京工业大学 A kind of flapper-type concrete slab pile pore-forming device and forming hole 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
CN110939307A (en) * 2019-12-20 2020-03-31 王子佳 Base for positioning tower pole for electric power laying construction
CN112664142A (en) * 2021-01-19 2021-04-16 贵阳云海岩土工程有限公司 Deep layer ramming pile-expanding machine drill
CN113356207A (en) * 2021-06-17 2021-09-07 浙江工业职业技术学院 Continuous extrusion equipment for filling piles
CN113356207B (en) * 2021-06-17 2022-11-22 中交机电工程局有限公司 Continuous extrusion equipment for filling piles

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