CN102677668B - Pile tip assembly for injection-molded soil and stone composite pile construction - Google Patents
Pile tip assembly for injection-molded soil and stone composite pile construction Download PDFInfo
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- CN102677668B CN102677668B CN201210130512.0A CN201210130512A CN102677668B CN 102677668 B CN102677668 B CN 102677668B CN 201210130512 A CN201210130512 A CN 201210130512A CN 102677668 B CN102677668 B CN 102677668B
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- pile
- dish
- grout injection
- stake
- pile top
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Abstract
The invention relates to a pile tip assembly for injection-molded soil and stone composite pile construction. The pile tip assembly structurally comprises a pile disc with a grout injection hole, and a pile tip which is arranged below the pile disc. The pile tip assembly is characterized in that the pile tip is a hollow conical structure formed by a group of pile tip petals in a gathering way, each pile tip petal is hinged with the pile disc through a hinge, a capsule which is communicated with the grout injection hole is arranged in the hollow conical structure and the capsule is fixed through a connecting piece which is arranged on the pile disc. By adopting the scheme, since the grout injection hole and a reinforcing rib assembly are arranged on the pile disc of the pile tip, a thread is arranged at the position of the grout injection hole and a grout injection pipe is in threaded connection with the grout injection hole, the grout injection pipe is guaranteed to be stable and not to float up when cement concrete is injected into the grout injection pipe and the quality of the formed pile is guaranteed. During grout injection, since the reinforcing rib assembly is arranged on the positioning plate of the pile tip, the solidified cement and the reinforcing rib assembly form an integral body; and since the high-elasticity capsule which is fixed through the positioning disc is arranged on the pile disc, when the grout injection pressure is increased and the grout is injected, the closed pile tip petals are pushed open and are enabled to bloom, an expanded pile bottom is firstly formed at the bottom of the pile and the pile tip is firmly fixed in a soil foundation.
Description
Technical field
The invention belongs to injection moulding soil stone composite pile construction field, relate to the pile crown of using in work progress, when injection moulding soil stone composite pile Pumping concrete, be specifically the working pile top assembly of injection-compression molding soil stone composite pile of avoiding a steel pipe floating difficult problem to design.
Background technology
In the construction of injection-compression molding soil stone composite pile, steel pipe floating in the time of pressure injection cement concrete in note pressure pipe, relies on the top workpiece of exerting pressure huge, and difficulty is installed, and efficiency of construction is low.
Summary of the invention
The present invention, in order to solve in composite pile work progress a Grouting Pipe floating difficult problem, has designed the working pile top assembly of a kind of injection-compression molding soil stone composite pile, guaranteed construction in Grouting Pipe when pressure injection cement concrete body firmly non-rising, thereby guarantee pile quality.
The technical solution used in the present invention is: the working pile top assembly of injection-compression molding soil stone composite pile, structure comprises with the stake dish of injected hole and is arranged on the pile top below stake dish, key is: described pile top is to crowd around become conical hollow structure by one group of pile top lobe, each pile top lobe is hinged with stake dish by hinge respectively, conical hollow inside configuration is provided with the capsule being communicated with injected hole, and capsule is fixed by the connector being arranged on stake dish.
The invention has the beneficial effects as follows: this programme adopts all steel pile top assembly, on the stake dish in pile top assembly, be provided with injected hole and reinforcing rib assembly.Injected hole place is provided with screw thread, and Grouting Pipe is threaded with injected hole, guaranteed in Grouting Pipe when pressure injection cement concrete Grouting Pipe firmly non-rising, thereby guarantee pile quality.When slip casting, first be by small-sized Grouting Pipe, cement concrete to be injected in pile top, the stake dish of pile top has reinforcing rib assembly below, after cement solidification, be consolidated into one with reinforcing rib, on stake dish, be provided with the high resiliency capsule fixing by positioning disk, along with grouting pressure increases and slurry injection, push the pile top lobe closing up open, pile top lobe " is bloomed ", at the bottom of stake, first form one and expand the stake end, pile top is firmly fixed in soil matrix.Pile top assembly is the entirety welding together with note pressure pipe, thereby solves when to note pressure pipe pressure injection cement concrete note pressure pipe On The Floating.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of king-pile dish of the present invention.
Fig. 3 is the structural representation of king-pile cusp of the present invention.
In accompanying drawing, 1-1 is injected hole, the 1st, and stake dish, the 2nd, pile top, 2-1 is pile top lobe, 2-2 is boss, the 3rd, capsule, the 4th, reinforcing rib, the 5th, note pressure pipe, the 6th, positioning disk, 7 Grouting Pipe, the 8th, hinge.
Below in conjunction with accompanying drawing, the present invention is described in detail.
The specific embodiment
The working pile top assembly of injection-compression molding soil stone composite pile, structure comprises with the stake dish 1 of injected hole 1-1 and is arranged on a pile top 2 for dish 1 below, importantly: described pile top 2 is to crowd around become conical hollow structure by one group of pile top lobe 2-1, each pile top lobe 2-1 is hinged with stake dish 1 by hinge 8 respectively, conical hollow inside configuration is provided with the capsule 3 being communicated with injected hole 1-1, and capsule 3 is fixed by the connector being arranged on stake dish 1.In work progress, along with grouting pressure increases and slurry injection, high resiliency capsule 3 expands, and to push the pile top lobe closing up open, pile top lobe " is bloomed ", first forms one and expand a stake end at the bottom of stake, and pile top is firmly fixed in cement concrete.
In order to fix better capsule 3, to avoid capsule 3 landings in slip casting process, in the technical program, the structure of described connector comprises the circular orientation dish 6 that is fixed on stake dish 1 lower surface, and capsule 3 is sleeved on positioning disk 6 and by clip and fixes.
Described stake dish 1 lower surface is also provided with one group of reinforcing rib 4 assembly.Reinforcing rib 4 is cemented in cement concrete, makes the stake end and pile foundation after pile firmer.
Described stake is coiled on 1 and is provided with one group of groove, on pile top lobe 2-1, is provided with boss 2-2, and boss 2-2 pegs graft and locates with the groove on stake dish 1 by hinge 8.
The quantity of described pile top lobe 2-1 is no less than 3.
The upper surface of described boss 2-2 is lozenges.Consider according to mechanical characteristic, boss 2-2 adopts lozenges, and in the process of piling, pile top assembly is difficult for scattering, so that the grouting operation of postorder.
In the specific implementation, choose the stake dish 1 that meets diameter according to note pressure pipe 5 diameters, make the injected hole 1-1 matching with Grouting Pipe 7 in central authorities, coil 1 lower surface in stake and weld annular positioning disk 6, on stake dish 1, weld afterwards reinforcing rib 4 assemblies, capsule 3 is sleeved on positioning disk 6 and by clip and is fixed.Again Grouting Pipe is inserted in injected hole 1-1 and by being threaded.If note pressure pipe 5 external diameter 19cm, the stake of choosing diameter 20cm coils 1, and thickness of slab 1.5cm, at the injected hole 1-1 of middle position brill Φ 49mm, threading, round steel T-shaped reinforcing rib 4 assemblies of five Φ 12 of welding.Weld the positioning disk 6 that high 30mm, Φ 150mm twine solid capsule 3 use, capsule 3 is sleeved on positioning disk 6, capsule 3 is communicated with injected hole 1-1, fix by clip afterwards.When construction, stake dish 1 and note pressure pipe 5 are pressed into soil matrix, are pressed into cement concrete to small-sized Grouting Pipe 7, after mud jacking completes, left-hand thread exits small-sized Grouting Pipe 7, after solidifying, to note pressure pipe 5 cementing concretes.
Claims (6)
1. the working pile top assembly of injection-compression molding soil stone composite pile, structure comprises with the stake dish (1) of injected hole (1-1) and is arranged on the pile top (2) below stake dish (1), it is characterized in that: described pile top (2) is to crowd around become conical hollow structure by one group of pile top lobe (2-1), each pile top lobe (2-1) is hinged with stake dish (1) by hinge (8) respectively, conical hollow inside configuration is provided with the capsule (3) being communicated with injected hole (1-1), and capsule (3) is fixed by the connector being arranged on stake dish (1).
2. the working pile top assembly of injection-compression molding soil stone composite pile according to claim 1, it is characterized in that: the structure of described connector comprises the circular orientation dish (6) that is fixed on stake dish (1) lower surface, capsule (3) is sleeved on positioning disk (6) above and fixes by clip.
3. the working pile top assembly of injection-compression molding soil stone composite pile according to claim 2, is characterized in that: described stake dish (1) lower surface is also provided with one group of reinforcing rib (4) assembly.
4. the working pile top assembly of injection-compression molding soil stone composite pile according to claim 1, it is characterized in that: on described stake dish (1), be provided with one group of groove, on pile top lobe (2-1), be provided with boss (2-2), boss (2-2) is pegged graft and is located with the groove on stake dish (1) by hinge (8).
5. the working pile top assembly of injection-compression molding soil stone composite pile according to claim 1, is characterized in that: the quantity of described pile top lobe (2-1) is no less than 3.
6. the working pile top assembly of injection-compression molding soil stone composite pile according to claim 4, is characterized in that: the upper surface of described boss (2-2) is lozenges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210130512.0A CN102677668B (en) | 2012-04-28 | 2012-04-28 | Pile tip assembly for injection-molded soil and stone composite pile construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210130512.0A CN102677668B (en) | 2012-04-28 | 2012-04-28 | Pile tip assembly for injection-molded soil and stone composite pile construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102677668A CN102677668A (en) | 2012-09-19 |
| CN102677668B true CN102677668B (en) | 2014-05-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210130512.0A Expired - Fee Related CN102677668B (en) | 2012-04-28 | 2012-04-28 | Pile tip assembly for injection-molded soil and stone composite pile construction |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104947661B (en) * | 2015-06-05 | 2017-03-01 | 汤始建华建材（苏州）有限公司 | Protection pile top |
| CN108842780A (en) * | 2018-06-28 | 2018-11-20 | 中交上海航道局有限公司 | The catheter device of bottom concrete under a kind of priming petock |
| CN112227359B (en) * | 2020-11-11 | 2021-10-26 | 中建八局第三建设有限公司 | Uplift pile |
| CN115324033B (en) * | 2022-08-16 | 2024-04-12 | 中天建设集团有限公司 | Prefabricated pipe pile construction method based on self-expanding pile shoe structure with built-in high expansion material |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01315521A (en) * | 1988-06-15 | 1989-12-20 | Nippon Kogen Concrete Kk | Tip ground reinforcing method for precast concrete pile |
| CN2863894Y (en) * | 2006-02-23 | 2007-01-31 | 杨安平 | Valve type pile shoe |
| CN202519666U (en) * | 2012-04-28 | 2012-11-07 | 邢台路桥建设总公司 | Pile toe assembly for construction of injection-compression molding earth-rock composite pile |
-
2012
- 2012-04-28 CN CN201210130512.0A patent/CN102677668B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01315521A (en) * | 1988-06-15 | 1989-12-20 | Nippon Kogen Concrete Kk | Tip ground reinforcing method for precast concrete pile |
| CN2863894Y (en) * | 2006-02-23 | 2007-01-31 | 杨安平 | Valve type pile shoe |
| CN202519666U (en) * | 2012-04-28 | 2012-11-07 | 邢台路桥建设总公司 | Pile toe assembly for construction of injection-compression molding earth-rock composite pile |
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| Publication number | Publication date |
|---|---|
| CN102677668A (en) | 2012-09-19 |
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Owner name: XINGTAI BRIDGE AND ROAD CONSTRUCTION GENERAL CO. Free format text: FORMER OWNER: XINGTAI ROAD AND BRIDGE CONSTRUCTION GENERAL CO. Effective date: 20140604 |
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Owner name: XINGTAI ROAD AND BRIDGE CONSTRUCTION GENERAL CO. Free format text: FORMER OWNER: XINGTAI BRIDGE AND ROAD CONSTRUCTION GENERAL CO. Effective date: 20140827 |
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