CN109137904A - One kind preventing the inclined device of driven cast-in-place pile and construction method - Google Patents
One kind preventing the inclined device of driven cast-in-place pile and construction method Download PDFInfo
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- CN109137904A CN109137904A CN201811091577.2A CN201811091577A CN109137904A CN 109137904 A CN109137904 A CN 109137904A CN 201811091577 A CN201811091577 A CN 201811091577A CN 109137904 A CN109137904 A CN 109137904A
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- 238000010276 construction Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 19
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- 229910000831 Steel Inorganic materials 0.000 claims description 34
- 239000010959 steel Substances 0.000 claims description 34
- 241000282693 Cercopithecidae Species 0.000 claims description 11
- 230000009471 action Effects 0.000 claims description 5
- 239000000284 extract Substances 0.000 claims description 3
- 230000006641 stabilisation Effects 0.000 claims 1
- 238000011105 stabilization Methods 0.000 claims 1
- 230000002265 prevention Effects 0.000 abstract description 2
- 239000002689 soil Substances 0.000 description 12
- 238000010586 diagram Methods 0.000 description 6
- 238000012937 correction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
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- 239000000428 dust Substances 0.000 description 1
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- 230000003993 interaction Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
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- 239000011150 reinforced concrete Substances 0.000 description 1
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- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
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Abstract
The present invention provides one kind to prevent the inclined device of driven cast-in-place pile and construction method, including pile body, and the top of pile body is uniformly distributed multiple elastic balloons, and elastic balloon is made of elastic wall and inflatable chamber.It is expanded after elastic balloon inflation, so that air cushion is kept vertical before pile sinking starts and tightly wrap up pile body, smoothly carries out downward pile sinking, and after small angle inclination occurs for pile body, the device is main deviation correcting device, is divulged information by deflection side unilateral side and squeezes pile body to adjust pile body angle.The inflation tight pile body for passing through elastic balloon during the pile driving process, pile body tilts caused by can preventing pile body unbalance stress, and it is inclined to play the role of prevention；Meanwhile the impact energy of stake being made effectively to pass to pile body, prevent the situation that stake is not descended.
Description
Technical field
The invention belongs to the construction application fields of pile foundation, and in particular to one kind prevent the inclined device of driven cast-in-place pile and
Construction method.
Background technique
With the development of science and technology, various types of pile foundations have been formd in engineering practice, it is each type of
Pile foundation has the characteristics that respective in itself structurally the interaction performance between stake and soil.Wherein, driven cast-in-place pile
It is to be sunk to a steel pipe (lower end have pile top) adaptable with the design size of stake in soil using the method for hammering or vibration,
Then steel reinforcement cage is put into steel pipe, Reperfu- sion concrete, and extracts steel pipe when filling, vibration force when using tube drawing will mix
Solidifying soil tamping.There are two types of constructions for the lower end of steel pipe: (A) bottom end opening is covered with precast reinforced concrete piles point in immersed tube, is being pulled out
Guan Shi, pile top stay in a subsoil；It (B) is an end with flapper pile tip, when immersed tube, pile top flap valve closes up, in concrete perfusion
Flap valve opens when tube drawing afterwards.Compared with cast-in-situ bored pile, driven cast-in-place pile effectively avoids the pile top of general cast-in-situ bored pile
Pile top caused by surface dust sinks, the problem of Lack of support, while also effective solution pile body surface laitance the phenomenon that, separately
Outside, this method also more saves construction material.But construction quality is not easy to control, as stake top is uneven, pile top is eccentric, pile extension not just,
There is the deflection that stake position is all easy to happen when barrier in soil, this series of problems all brings sizable safety to engineering structure
Hidden danger.
In engineering practice, never by good solution the problem of pile sinking pile body inclining, more measures are only pre-
Anti- and maintenance.The verticality that pile body is examined such as before piling construction, in the construction process if it find that pile body inclining, then will stop work
The methods of safeguard.Currently, main maintenance mode have it is following several: (A) high side concentrate except soil, weighting material；In downside
Sandstone is backfilled, and applies horizontal force righting in stake top when necessary.(B) first except soil makes a bottom center to design if pile center's offset
Then center inclination makes stake restore vertical, gradually shifts near design well location center to open caisson repeatedly in opposite side except soil.More than
Method all has certain limitation, is safeguarded firstly, these methods need to stop piling, so that working-day claims, influence whole
The construction speed of a engineering；Secondly, soil stress state can also change after the duration stagnates.So that stop piling before with
Foundation soil after reparation is in two stress states, and arrangement and method for construction needs to adjust and after maintenance probably because soil stress
The change of state and cause stake can not beaten any more.
Summary of the invention
In view of the above shortcomings of the prior art with defect, the purpose of the present invention is to provide one kind to prevent driven cast-in-place pile from inclining
The technical issues of oblique device and construction method, solution cannot take into account correction and engineering synchronism progress in the prior art.
In order to solve the above-mentioned technical problem, the application, which adopts the following technical scheme that, is achieved:
One kind prevents the inclined device of driven cast-in-place pile, including pile body, the top of the pile body is uniformly distributed have it is multiple
Elastic balloon, the elastic balloon are strip, and the long axis direction of elastic balloon is laid with the axially parallel of pile body；
The pile body top is connected with pile crown, and catheter interface, the inside of pile crown are disposed on the side of the pile crown
It is provided with the first tubular cavity, catheter interface is connected with the first tubular cavity；
The lower part of the pile crown is connected with top steel loop, and the top steel loop is internally provided with the second tubular cavity,
Second tubular cavity is connected with the first tubular cavity.
It is disposed with expansion wind inside each elastic balloon and spills head, expansion wind spills head and is connected with the second tubular cavity one-to-one correspondence.
The present invention also has following technical characteristic:
It is connected with rubber flexible conduit on the catheter interface, the other end of rubber flexible conduit and is connected on air blower
Air draft mouth is connected.
The middle part of the pile body is uniformly distributed multiple steel pricker pieces.
The elastic balloon top is connected with top steel loop, and lower part is connected with steel pricker piece.
The pile crown is truncated cone-shaped, and the diameter of pile crown upper surface and the diameter of lower surface are all larger than the diameter of pile body；The
The top of two tubular cavities and the bottom end of the first tubular cavity are coaxially disposed.
The bottom of the pile body is connected with precast pile tip.
The pile crown top is equipped with pile monkey pad, and the top of pile monkey pad is equipped with double-acting stream hammer.
The construction method for preventing the inclined device of driven cast-in-place pile, comprising the following steps:
Step 1: after fixed pile sinking stake position, in stake position, surrounding puts air blower.When preparing pile sinking, air blower is opened
Beginning work is discharged after wind by air draft mouth and is sent to catheter interface by rubber flexible conduit, then spills head into elastic balloon via expansion wind
Convey wind-force.
Step 2: expanding after elastic balloon inflation, be close to elastic balloon with pile body, guarantees quasi- after pile body is stable and vertical
Standby pile sinking.
Step 3: start pile sinking under the hammer action of double-acting stream hammer, and the use of pile monkey pad is uniform also for power is made
Continuation situations such as transmitting downwards, preventing the pile body skew back because of caused by pile body unbalance stress.And while pile sinking, steel pricker piece
It takes elastic balloon also to break ground sinking, synchronism stability pile body.
Step 4:, can be by mediating and pile body inclined direction if the case where finding low-angle deflection during the pile driving process
Opposite air blower, while the wind-force of skew direction air blower is increased, extruding and pile body to pile body are expanded by elastic balloon
Unilateral side is carried out the correction of low-angle to pile body by the effect of external force.
Step 5: after pile body restores vertical state, the air blower of mediation is continued into state of resuming work, makes all air blast
Machine plays same wind-force, continues to keep vertical pile sinking.After pile sinking, pile body and elastic balloon, the forming of stake position are extracted.
Compared with prior art, the present invention beneficial has the technical effect that
(I) present invention can pass through the inflation tight pile body of elastic balloon during the pile driving process, can prevent pile body
Pile body tilts caused by unbalance stress, and it is inclined to play the role of prevention；Meanwhile the impact energy of stake being made effectively to pass to stake
Body prevents the situation that stake is not descended.
(II) if small angle inclination occurs for pile body, angle timely can be corrected by adjusting wind pressure, avoids angle
Inclination it is increasing；And this process can be carried out uninterruptedly during the pile driving process, thus when avoiding because stopping piling maintenance
The problems such as caused working-day claims and soil stress state change.
(III) present invention can reduce the disturbance when hammering stake top to pile peripheral earth using elastic balloon, play certain
Bradyseism effect, influence when facilitating other construction, while reducing construction to Adjacent Buildings.
Detailed description of the invention
Fig. 1 is present apparatus general structure schematic diagram.
Fig. 2 is structural schematic diagram after present apparatus pile sinking.
Fig. 3 is operation schematic diagram when pile body is tilted to the left.
Fig. 4 is operation schematic diagram when pile body is tilted to the right.
Fig. 5 is the a-quadrant partial enlargement diagram in Fig. 2.
Fig. 6 is steel pricker piece enlarged schematic partial view.
Fig. 7 is present apparatus schematic top plan view.
Fig. 8 is pile body part isometric schematic diagram.
The meaning of each label in figure are as follows: 1- pile body, 2- elastic balloon, 3- pile crown, 4- catheter interface, the first tubulose of 5- are empty
Chamber, 6- rubber flexible conduit, 7- air blower, 8- air draft mouth, the top 9- steel loop, the second tubular cavity of 10-, 11- steel pricker piece, 12- expand
Wind spills head, 13- precast pile tip, 14- pile monkey pad, 15- double-acting stream hammer.
Explanation is further explained in detail to particular content of the invention below in conjunction with drawings and examples.
Specific embodiment
Specific embodiments of the present invention are given below, it should be noted that the invention is not limited to implement in detail below
Example, all equivalent transformations made on the basis of the technical solutions of the present application each fall within protection scope of the present invention.
Embodiment 1:
In compliance with the above technical solution, as shown in Figures 1 to 8, the present embodiment, which provides one kind, prevents driven cast-in-place pile inclined
Device, including pile body 1, the top of the pile body 1 is uniformly distributed multiple elastic balloons 2, and the elastic balloon 2 is strip
Shape, the long axis direction of elastic balloon 2 are laid with the axially parallel of pile body 1；
1 top of pile body is connected with pile crown 3, and catheter interface 4 is disposed on the side of the pile crown 3, pile crown 3
It is internally provided with the first tubular cavity 5, catheter interface 4 is connected with the first tubular cavity 5；
The lower part of the pile crown 3 is connected with top steel loop 9, and the top steel loop 9 is internally provided with the second tubulose sky
Chamber 10, the second tubular cavity 10 are connected with the first tubular cavity 5.
It is disposed with inside each elastic balloon 2 and expands wind and spill first 12, expanded wind and spill first 12 and the second one-to-one correspondence of tubular cavity 10
It is connected.
As a kind of preferred embodiment of the present embodiment, rubber flexible conduit 6 is connected on catheter interface 4, rubber flexible conduit 6
The other end is connected with the air draft mouth 8 being connected on air blower 7.
As a kind of preferred embodiment of the present embodiment, the middle part of pile body 3 is uniformly distributed multiple steel pricker pieces 11.For connecting
Elastic balloon 2, auxiliary pile body 1 break ground sinking.
As a kind of preferred embodiment of the present embodiment, 2 top of elastic balloon is connected with top steel loop 9, lower part and steel pricker
Piece 11 is connected.
As a kind of preferred embodiment of the present embodiment, pile crown 3 is truncated cone-shaped, the diameter of 3 upper surface of pile crown and lower surface
Diameter is all larger than the diameter of pile body 1；It is easily installed top steel loop 9.The top of second tubular cavity 10 and the first tubular cavity 5
Bottom end coaxial arrangement.
As a kind of preferred embodiment of the present embodiment, the bottom of pile body 1 is connected with precast pile tip 13.It can make pile body 1 more
Good sinking.
As a kind of preferred embodiment of the present embodiment, 3 top of pile crown is equipped with pile monkey pad 14, the top installation of pile monkey pad 14
There is double-acting stream hammer 15.Double acting steam hammer 15 can move up and down in its shell, hammer stake top, and frequency of impact is high, can not only use
It drives piles, can also extract pile body 1, Portable high-efficiency after the completion of piling.The power that pile monkey pad 14 can be such that hammering generates is uniform
Transmitting downwards is prevented because pile body 1 tilts caused by power transmission is uneven, can damping again can be maximumlly to 1 power transmission of pile body, simultaneously
Pile crown 3 can also be avoided to be broken.
In the present embodiment, elastic balloon 2 expands after inflating, and so that air cushion is kept vertical before pile sinking starts and tightly wraps up stake
Body 1 smoothly carries out downward pile sinking, and after small angle inclination occurs for pile body 1, which is main deviation correcting device, is passed through
The ventilation of deflection side unilateral side squeezes pile body 1 to adjust 1 angle of pile body.
In the present embodiment, steel pricker piece 11 is connected with 2 bottom of elastic balloon with vulcanizing adhesive, when pile monkey hammers stake top
When steel pricker piece 11 can also cut soil and advance elastic balloon 2 is driven to bury together work.With vulcanizing adhesive by top steel loop 9 and bullet
Property air bag 2 at the top of be connected, so that top steel loop 9, steel pricker piece 11 and elastic balloon 2 is closely held together；Meanwhile Ke Yijia
The whole self weight of big deviation correcting device makes its work of easily burying.
In the present embodiment, as a preferred embodiment, elastic balloon 2 is four, and air blower 7 corresponds to 4, and rubber is soft to lead
Pipe 6 corresponds to 4, and steel pricker piece 11 also corresponds to 4.
Elastic balloon 2 is made of high-strength elastic rubber material in the present embodiment.
Embodiment 2:
The present embodiment provides a kind of construction method for using and preventing the inclined device of driven cast-in-place pile, and this method is using implementation
The inclined device of driven cast-in-place pile is prevented described in example 1.Method includes the following steps:
Step 1: after fixed pile sinking stake position, in stake position, surrounding puts four air blowers 7 as shown in Figure 7, is in mutually
90 ° of arrangements.When preparing pile sinking, air blower 7, which starts to work to be discharged after wind by air draft mouth 8, is sent to conduit by rubber flexible conduit 6
Then interface 4 conveys wind-force via expanding wind and spill first 12 into elastic balloon 2.
Step 2: as shown in Figure 1, elastic balloon 2 expands after inflating, being close to elastic balloon 2 with pile body 1, guarantees pile body 1
Stablize and prepares pile sinking after vertical.
Step 3: as shown in Fig. 2, starting pile sinking under the hammer action of double-acting stream hammer 15, and the use of pile monkey pad 14
It is to make power uniformly continue situations such as transmitting downwards, prevent 1 skew back of pile body because of caused by 1 unbalance stress of pile body.And
While pile sinking, steel pricker piece 11 takes elastic balloon 2 and also breaks ground sinking, synchronism stability pile body 1.
Step 4: if the case where finding low-angle deflection as shown in Figure 3, Figure 4 during the pile driving process, can pass through mediation
The air blower 7 opposite with pile body inclining direction, while the wind-force of skew direction air blower 7 is increased, pass through the expansion pair of elastic balloon 2
The extruding of stake and pile body unilateral side are carried out the correction of low-angle to stake by the effect of external force.
Step 5: after pile body restores vertical state, the air blower 7 of mediation is continued into state of resuming work, makes four drums
Blower 7 plays same wind-force, continues to keep vertical pile sinking.After pile sinking, steel pipe and elastic balloon, the forming of stake position are extracted.
This device concrete construction method for being used to prevent pile sinking pile body inclining are as follows: before decentralization immersed tube pile body, in stake position
Surrounding is in 90 ° of arrangements, four identical strong power high pressure blowers, under the hammer action of double acting steam hammer, prepares pile sinking and buries.
At this moment, four strong power high pressure blowers start to divulge information, and wind is uniformly drained into bullet after head to expanding wind and spill via rubber flexible conduit
Property air bag in, air cushion inflation expansion after until air cushion wall be close to pile body.At this moment, under the action of double acting steam hammer, due to pile body
Surrounding is wrapped up by elastic preferable air cushion, it is possible to which smoothly pile sinking effectively avoids pile body in hammering because of stress
Pile body inclining caused by unevenness.Secondly, if the method that the deflection that low-angle occurs for pile body can be calmed the anger by unilateral side carries out
It corrects, if pile body is to the deflection of a direction generation low-angle, the wind-force of skew direction while piling, can be increased while being closed
The blower in direction corresponding thereto is closed, so that the deflection side unilateral side stress of stake is to carry out the correction of angle.
Claims (8)
1. one kind prevents the inclined device of driven cast-in-place pile, including pile body (1), which is characterized in that the top of the pile body (1)
Uniformly distributed to have multiple elastic balloons (2), the elastic balloon (2) is strip, the long axis direction of elastic balloon (2) and stake
The axial parallel laying of body (1)；
Described pile body (1) top is connected with pile crown (3), and catheter interface (4), stake are disposed on the side of the pile crown (3)
Head (3) is internally provided with the first tubular cavity (5), and catheter interface (4) is connected with the first tubular cavity (5)；
The lower part of the pile crown (3) is connected with top steel loop (9), and the top steel loop (9) is internally provided with the second tubulose
Cavity (10), the second tubular cavity (10) are connected with the first tubular cavity (5)；
It is disposed with expansion wind inside each elastic balloon (2) to spill head (12), expands wind and spills head (12) and the second tubular cavity (10) one by one
It is corresponding to be connected.
2. preventing the inclined device of driven cast-in-place pile as described in claim 1, which is characterized in that the catheter interface (4)
On be connected with rubber flexible conduit (6), the other end of rubber flexible conduit (6) is connected with the air draft mouth (8) being connected on air blower (7)
It connects.
3. preventing the inclined device of driven cast-in-place pile as described in claim 1, which is characterized in that in the pile body (3)
Portion is uniformly distributed multiple steel pricker pieces (11).
4. preventing the inclined device of driven cast-in-place pile as claimed in claim 3, which is characterized in that the elastic balloon (2)
Top is connected with top steel loop (9), and lower part is connected with steel pricker piece (11).
5. preventing the inclined device of driven cast-in-place pile as described in claim 1, which is characterized in that the pile crown (3) is circle
Platform shape, the diameter of pile crown (3) upper surface and the diameter of lower surface are all larger than the diameter of pile body (1)；Second tubular cavity (10)
The bottom end of top and the first tubular cavity (5) is coaxially disposed.
6. preventing the inclined device of driven cast-in-place pile as described in claim 1, which is characterized in that the bottom of the pile body (1)
It is connected with precast pile tip (13).
7. preventing the inclined device of driven cast-in-place pile as described in claim 1, which is characterized in that described pile crown (3) top
It is equipped with pile monkey pad (14), the top of pile monkey pad (14) is equipped with double-acting stream hammer (15).
8. a kind of using the construction party for preventing the inclined device of driven cast-in-place pile described in claim 1 to 7 any claim
Method, which comprises the following steps:
Step 1: after fixed pile sinking stake position, in stake position, surrounding puts air blower (7).When preparing pile sinking, air blower (7)
It starts to work to be discharged after wind by air draft mouth (8) and catheter interface (4) is sent to by rubber flexible conduit (6), then spill head via expansion wind
(12) wind-force is conveyed into elastic balloon (2)；
Step 2: elastic balloon (2) inflation after expand, is close to elastic balloon (2) with pile body (1), guarantee pile body (1) stabilization and
Prepare pile sinking after vertical；
Step 3: starting pile sinking, and while pile sinking under the hammer action of double-acting stream hammer (15), and steel pricker piece (11) takes elasticity
Air bag (2) also breaks ground sinking, synchronism stability pile body (1)；
Step 4:, can be by mediating and pile body (1) inclined direction phase if the case where finding low-angle deflection during the pile driving process
Pair air blower (7), while increasing the wind-force of skew direction air blower (7)；
Step 5: after pile body restores vertical state, the air blower (7) of mediation is continued into state of resuming work, makes all air blast
Machine (7) plays same wind-force, continues to keep vertical pile sinking.After pile sinking, extract pile body (1) and elastic balloon (2), stake position at
Shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811091577.2A CN109137904B (en) | 2018-09-19 | 2018-09-19 | Device for preventing inclined of immersed tube filling pile and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811091577.2A CN109137904B (en) | 2018-09-19 | 2018-09-19 | Device for preventing inclined of immersed tube filling pile and construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109137904A true CN109137904A (en) | 2019-01-04 |
| CN109137904B CN109137904B (en) | 2024-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811091577.2A Active CN109137904B (en) | 2018-09-19 | 2018-09-19 | Device for preventing inclined of immersed tube filling pile and construction method |
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| Country | Link |
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| CN (1) | CN109137904B (en) |
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| CN110872840A (en) * | 2019-12-19 | 2020-03-10 | 长安大学 | Deviation correcting device for immersed tube cast-in-place pile and using method thereof |
| CN112921966A (en) * | 2021-01-22 | 2021-06-08 | 中欧国际建工集团有限公司 | Device for ensuring pile end of precast pile to enter bearing stratum and construction method thereof |
| CN112942477A (en) * | 2019-12-11 | 2021-06-11 | 中交二公局第一工程有限公司 | Rapid crushing tool for steel pipe pile encountering boulder and construction method |
| CN113529710A (en) * | 2021-07-20 | 2021-10-22 | 中国水利水电第十二工程局有限公司 | Pile body fixing mechanism for mudflat photovoltaic construction and pile driver thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112942477A (en) * | 2019-12-11 | 2021-06-11 | 中交二公局第一工程有限公司 | Rapid crushing tool for steel pipe pile encountering boulder and construction method |
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| CN113529710A (en) * | 2021-07-20 | 2021-10-22 | 中国水利水电第十二工程局有限公司 | Pile body fixing mechanism for mudflat photovoltaic construction and pile driver thereof |
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| Publication number | Publication date |
|---|---|
| CN109137904B (en) | 2024-04-02 |
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