CN101705683B - Use method of flapper pile tip of sinking pipe cast-in-place pile - Google Patents
Use method of flapper pile tip of sinking pipe cast-in-place pile Download PDFInfo
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- CN101705683B CN101705683B CN2009102340327A CN200910234032A CN101705683B CN 101705683 B CN101705683 B CN 101705683B CN 2009102340327 A CN2009102340327 A CN 2009102340327A CN 200910234032 A CN200910234032 A CN 200910234032A CN 101705683 B CN101705683 B CN 101705683B
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Abstract
The invention relates to a flapper pile tip of a concrete CFC material sinking pipe cast-in-place pile, which can be used for placing a reinforced steel cage and connected at an external angle of the bottom of a sinking pipe through hinges. The flapper pile tip of the concrete CFC material sinking pipe cast-in-place pile is characterized by being made from a conical steel plate with radian; two sides and the tip end of the steel plate are cut into inclined planes, and the upper end of the steel plate is provided with a hinge connecting mechanism; and the steel plate forms a cone with a hollowcavity in the middle after closing so as to reduce sinking resistance of the pile tip. The flapper pile tip of the concrete CFC material sinking pipe cast-in-place pile has good seepage-proofing performance, ingenious structure, simple operation and convenient use, and can be reused; and the invention saves cost, reduces the manufacturing cost, shortens time limit for a project and improves the working efficiency.
Description
Technical field
The present invention relates to a kind of cast-in-situ steel reinforced concrete, CFG material pile driving construction equipment and using method, particularly relate to a kind of using method of flapper pile tip of tube-sinking cast-in-situ pile.
Background technology
Circular cast-in-situ steel reinforced concrete stake is used widely in the foundation engineering field, because stake side skin friction and end resistance are the main bearing capacity of circular pile foundation, causes its demand to steel concrete excessive, needs great amount of cost.In order to reduce the demand that steel concrete, plain concrete, CFG are expected and to reduce cost, the documents of the patent No. 200710020306.3 provides a kind of X shaped steel reinforced concrete pile construction method to adopt the way of the precast reinforced concrete piles point being stayed ground, but this way has following some deficiency: 1. prefabricated X type, Y type, O type and other shape stake point, must prepare the reinforcing cage of some, concrete grade must not be lower than C30 simultaneously.Otherwise the impact force when being difficult to bear the vibration sinking tube sinking and the resistance of ground, even it can not effectively penetrate bearing stratum with regard to crushed destruction.Therefore the prefabricated sharp cost of stake is too high, needs 80～100 yuan through calculating each sharp cost.If single pile is with 10 meters long calculating, then every linear meter(lin.m.) will increase by 8～10 yuan of costs.2. precast pile tip needs to make mould, reaches certain intensity because of the demoulding need wait concrete, so need to make a large amount of moulds.Each sharp mould needs 800～1000 yuan.Strengthened construction cost.3. the precast pile tip concrete strength must reach design strength 100% and can use, and fails to meet the time limit of a project.Precast pile tip needs bigger prefabricated, stacking place.The sclerosis of prefabricated place is again a no small expense.If the stake machine changes next building site over to, the place of hardening just will be scrapped.4. secondary must take place and have bad luck (precasting yard is to the building site) expense in precast pile tip.Because of each point weighs more than 100 kilogram, minimum as just to move more than two people during construction.So not only inconvenience but also dangerous.5. prefabricated stake point.Careless slightly during construction, card pipe phenomenon will take place, to immersed tube is scrapped.The bottom surface of 6. prefabricated stake point is a plane body, and the immersed tube penetration resistance is big, and the stake machine must be opened with the vibrational state immersed tube just to be sunk.Can make soil liquefaction like this, strengthened concrete filling volume, waste material, reduced the bearing capacity of stake.The Outside Dimensions of 7. prefabricated stake point must be bigger than the Outside Dimensions of immersed tube, otherwise prefabricated stake point can enter in the immersed tube chamber generation card pipe phenomenon.Strengthen concrete fullness coefficient like this, certainly will increase material usage, reduced the supporting capacity of stake simultaneously.
Summary of the invention
The purpose of this invention is to provide a kind of high efficient and reliable, can have enough to meet the need the construction equipment and the using method of use.Flapper pile tip of the present invention is made up of several band radian taper steel plates.Form the cone that the centre is cavity structure (circle) when steel plate is closed, the not open petal that likeness in form is made up of several petals.Be convenient to immersed tube, reduce the immersed tube penetration resistance.The inclined-plane is cut at steel plate both sides and tip, impels adjacent steel plate and stake end steel plate to be close to mutually.Avoid in the work progress, moisture in the ground and mud infiltrate in the tube chamber from stake point bottom.In order to improve the integral rigidity of stake point, allow the stake point possess certain anti-ability of inserting (when the concrete plugging takes place simultaneously, immersed tube can be carried to certain altitude, the downward again ability of inserting), add the steel plate (reinforcement floor) that weldering is complementary with it in the middle of the band radian taper steel plate outside, the upper end of steel plate links to each other with the exterior angle of the immersed tube of cavity structure with hinges.The Vibration on Start-up head is lowered into the ground projected depth with the immersed tube of cavity structure in the protection of flapper pile tip.The petal of stake point opens automatically because of immersed tube promotes when concrete perfusion, together with immersed tube with concrete perfusion with vibrating with lifting.Barrier performance of the present invention is good, delicate structure, simple to operate, easy to use, turnover are used, have saved cost, have reduced cost, have shortened the duration, improved work efficiency.
The invention provides a kind of using method of flapper pile tip of tube-sinking cast-in-situ pile, described flapper pile tip is a concrete of putting reinforcing cage, the flapper pile tip of CFG material tube-sinking cast-in-situ pile, be connected through the hinge on the exterior angle of immersed tube bottom, the immersed tube of described connection is a Y shape, the flapper pile tip of described tube-sinking cast-in-situ pile is made up of the taper steel plate of band radian, the inclined-plane is cut at steel plate both sides and tip, the steel plate upper end is provided with articulated link mechanism, in the middle of forming after the described steel plate closure is the cone of cavity, in the middle of the described flapper pile tip outside or both sides are welded with the reinforcement floor, comprise the steps:
A. vibro driver is in place;
B. the vibration head bottom of vibro driver is connected with tup, and the tup lower end is connected with immersed tube;
C. with the flapper pile tip that is connected with of described tube-sinking cast-in-situ pile, the mechanism that is connected through the hinge is connected the immersed tube bottom, becomes closed form;
D. vibrate downwards by vibration head, drive immersed tube and flapper pile tip and move downward;
E. immersed tube is lowered into the ground projected depth in the flapper pile tip protection of tube-sinking cast-in-situ pile, holds the soil body to squeeze the immersed tube outside stake;
F. concrete is injected in the immersed tube cavity by charging aperture;
G. vibrate by vibration head, immersed tube is upwards progressively at the uniform velocity extracted ground, along with promoting, immersed tube drives the flapper pile tip rising, make the petal of flapper pile tip open automatically by concrete, the action of gravity of CFG material, immersed tube inner concrete, CFG material flows out automatically, has formed cast-in-place steel concrete, CFG expect stake, generation plugging phenomenon when immersed tube and flapper pile tip make progress the tube drawing concrete perfusion, immersed tube is promoted certain altitude, insert downwards once more.
Advantage of the present invention is that barrier performance is good, delicate structure, simple to operate, easy to use, can have enough to meet the need use, saved cost, reduced cost, shortened the duration, improved work efficiency.
Description of drawings
Fig. 1 is the work schematic diagram of flapper pile tip of the present invention
Fig. 2 is a kind of assembling schematic diagram of X flapper pile tip of the present invention
Fig. 3 is the another kind assembling schematic diagram of Y flapper pile tip of the present invention
Fig. 4 is the another kind assembling schematic diagram of O flapper pile tip of the present invention
1, vibro driver; 2, tup; 3, immersed tube; 4, flapper pile tip;
5, articulated link mechanism; 6, reinforcement floor;
The specific embodiment
Below in conjunction with drawings and Examples invention is described further.
In order to improve the integral rigidity of flapper pile tip 4, and allow flapper pile tip 4 possess certain anti-ability of inserting, when the concrete plugging takes place, immersed tube 3 can be promoted to certain altitude after, in downward insertion.Both sides or centre at band radian taper steel plate add the muscle floor 6 that weldering is complementary with it.If X type immersed tube adds the muscle floor 6 that weldering is complementary with it in band radian taper steel plate both sides as shown in Figure 2, if Y type immersed tube adds the muscle floor 6 that weldering is complementary with it as shown in Figure 3 in the middle of band radian taper steel plate, if the column type immersed tube need not to add the muscle floor 6 that weldering is complementary with it as shown in Figure 4.
A kind of using method of flapper pile tip of tube-sinking cast-in-situ pile is characterized in that as shown in Figure 1, comprises the steps:
Allow vibro driver 1 in place earlier, make the vibration head bottom of vibro driver 1 be connected with tup 2, tup 2 lower ends are connected with immersed tube 3, and the flapper pile tip 4 of the tube-sinking cast-in-situ pile mechanism 5 that is connected through the hinge is connected immersed tube 3 bottoms, become the seal closure shape.Prevent that ground moisture content and mud from entering in the tube chamber.
Vibrate downwards by the vibration tup afterwards; driving immersed tube 3 and flapper pile tip 4 moves downward; make immersed tube 3 be lowered into the ground projected depth, hold the soil body to squeeze immersed tube 3 outsides stake, afterwards concrete is injected in immersed tube 3 cavitys by charging aperture in flapper pile tip 4 protections of tube-sinking cast-in-situ pile.
By vibration head vibration, immersed tube 3 is progressively at the uniform velocity upwards extracted ground at last, drive flapper pile tip 4 and rise,, formed cast-in-place steel concrete, CFG and expect because the concrete gravity effect makes the petal of flapper pile tip 4 open automatically along with steel pipe promotes.
Because of flapper pile tip 4 has certain anti-slotting ability, if the plugging phenomenon took place when making progress the tube drawing concrete perfusion for immersed tube 3 and flapper pile tip 4, immersed tube 3 can be promoted certain altitudes, insert downwards once more.
Advantage of the present invention is that barrier performance is good, delicate structure, simple to operate, easy to use, can have enough to meet the need use, saved cost, reduced cost, shortened the duration, improved work efficiency.
Claims (1)
1. the using method of the flapper pile tip of a tube-sinking cast-in-situ pile, it is characterized in that, described flapper pile tip (4) is for putting the concrete of reinforcing cage, the flapper pile tip (4) of CFG material tube-sinking cast-in-situ pile, be connected by hinge (5) on the exterior angle of immersed tube (3) bottom, the immersed tube of described connection (3) is a Y shape, the flapper pile tip of described tube-sinking cast-in-situ pile (4) is made up of the taper steel plate of band radian, the inclined-plane is cut at steel plate both sides and tip, the steel plate upper end is provided with articulated link mechanism (5), in the middle of forming after the described steel plate closure is the cone of cavity, in the middle of described flapper pile tip (4) outside or both sides are welded with reinforcement floor (6), comprise the steps:
A. vibro driver (1) is in place;
B. the vibration head bottom of vibro driver (1) is connected with tup (2), and tup (2) lower end is connected with immersed tube (3);
C. with described tube-sinking cast-in-situ pile be connected with flapper pile tip (4), the mechanism that is connected through the hinge (5) is connected immersed tube (3) bottom, becomes closed form;
D. vibrate downwards by vibration head, drive immersed tube (3) and flapper pile tip (4) and move downward;
E. immersed tube (3) is lowered into the ground projected depth in flapper pile tip (4) protection of tube-sinking cast-in-situ pile, holds the soil body to squeeze immersed tube (3) outside stake;
F. concrete is injected in immersed tube (3) cavity by charging aperture;
G. vibrate by vibration head, immersed tube (3) is upwards progressively at the uniform velocity extracted ground, along with promoting, immersed tube (3) drives flapper pile tip (4) rising, make the petal of flapper pile tip (4) open automatically by concrete, the action of gravity of CFG material, immersed tube inner concrete, CFG material flows out automatically, has formed cast-in-place steel concrete, CFG expect stake, when immersed tube (3) and flapper pile tip (4) generation plugging phenomenon during the tube drawing concrete perfusion upwards, immersed tube (3) is promoted certain altitude, insert downwards once more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102340327A CN101705683B (en) | 2009-11-19 | 2009-11-19 | Use method of flapper pile tip of sinking pipe cast-in-place pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102340327A CN101705683B (en) | 2009-11-19 | 2009-11-19 | Use method of flapper pile tip of sinking pipe cast-in-place pile |
Publications (2)
| Publication Number | Publication Date |
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| CN101705683A CN101705683A (en) | 2010-05-12 |
| CN101705683B true CN101705683B (en) | 2011-01-05 |
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| CN2009102340327A Expired - Fee Related CN101705683B (en) | 2009-11-19 | 2009-11-19 | Use method of flapper pile tip of sinking pipe cast-in-place pile |
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102304917B (en) * | 2011-07-25 | 2013-05-29 | 山东电力工程咨询院有限公司 | Construction process of pressing-and-embedding special-shaped cast-in-place pile and equipment thereof |
| CN103741679A (en) * | 2013-12-23 | 2014-04-23 | 广西科技大学 | Production method for pipe sinking cast-in-place file |
| CN103741677A (en) * | 2013-12-23 | 2014-04-23 | 广西科技大学 | Production method for bored pile |
| CN105178315A (en) * | 2015-09-14 | 2015-12-23 | 王警 | Pouring type pile driver and pile driving method using pile driver |
| CN105568963B (en) * | 2015-12-18 | 2017-08-04 | 中国石油天然气集团公司 | A kind of concrete-pile and preparation method thereof |
| CN106120790A (en) * | 2016-08-12 | 2016-11-16 | 河北海创岩土工程有限公司 | The special equipment of the compacted guncreting pile of high frequency and method |
| CN106087974A (en) * | 2016-08-12 | 2016-11-09 | 河北海创岩土工程有限公司 | High frequency compacted grooving bridge-type construction method for diaphragm walls and special equipment thereof |
| CN106193038A (en) * | 2016-09-23 | 2016-12-07 | 王继忠 | The construction equipment of concrete-pile and construction method thereof |
| CN106869128A (en) * | 2017-04-07 | 2017-06-20 | 东南大学 | Treatment bottom is soft layer, top is liquefaction soil layers ground stake machine and method |
| CN107556044B (en) * | 2017-09-18 | 2020-08-18 | 南京工业大学 | Plate type vibration reduction and isolation structure and forming preparation method |
| CN110106871B (en) * | 2019-04-25 | 2021-10-08 | 广东电网有限责任公司广州供电局 | Lime pile forming device, lime pile forming method and material conveying mechanism |
| CN114263161A (en) * | 2022-01-11 | 2022-04-01 | 浙江省地矿建设有限公司 | Method for treating soft soil foundation by using expanded concrete Y-shaped piles after mixture pre-filling |
| CN115772892A (en) * | 2022-12-14 | 2023-03-10 | 南京工业大学 | Soft soil foundation reinforcing device for efficiently treating fluid mud and construction method thereof |
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