CN202577289U - Prestressed concrete pipe pile with easiness for pile sinking - Google Patents
Prestressed concrete pipe pile with easiness for pile sinking Download PDFInfo
- Publication number
- CN202577289U CN202577289U CN 201220168713 CN201220168713U CN202577289U CN 202577289 U CN202577289 U CN 202577289U CN 201220168713 CN201220168713 CN 201220168713 CN 201220168713 U CN201220168713 U CN 201220168713U CN 202577289 U CN202577289 U CN 202577289U
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- pile
- pipe pile
- sinking
- prestressed concrete
- concrete pipe
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- Expired - Lifetime
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- 239000011513 prestressed concrete Substances 0.000 title claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 description 4
- 230000035515 penetration Effects 0.000 description 3
- 230000003203 everyday effect Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 241000282693 Cercopithecidae Species 0.000 description 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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- Piles And Underground Anchors (AREA)
Abstract
The utility model provides a prestressed concrete pipe pile with easiness for pile sinking. For a Phi1000 prestressed concrete pipe pile, namely a PHC pipe pile (B type, pile length of 52m), on a front cushion cap of a dock, the pipe pile enters into a VII1 grey silt layer within a depth of 7-16 m, the maximal standard blow count of the silt layer is 45, the middle upper part of the silt layer is medium-dense ordinarily, and the partial part of the silt layer is dense, so that a pile sinking operation is slightly difficult to carry out. The prestressed concrete pipe pile comprises a pipe pile body (1), wherein the pipe pile body is connected with a pile shoe (3) through a pipe pile end plate (2); and a rebar ring (4) is arranged at the outer circumference of the pipe pile end plate. According to the prestressed concrete pipe pile provided by the utility model, the pile sinking resistance of a pile foundation can be reduced in the pile sinking process, so that the pile sinking speed is accelerated; and the restored ultimate bearing capacity of the pile foundation at the later stage is more than the original pipe pile bearing capacity, so that the pile foundation resistance in the pile sinking period can be reduced after improvement, therefore the bearing capacity of the pile foundation at the later stage can be increased.
Description
Technical field
The utility model relates to a kind of prestressed concrete pipe pile that is easy to pile sinking, belongs to technical field of buildings.
Background technology
Being PHC pile tube (Type B, stake long 52m) for harbour the place ahead cushion cap Φ 1000 prestressed concrete pipe piles, to reach 7 ~ 16m many because of it gets into VII 1 gray powder layer of sand, and the maximum standard blow number of this soil layer is 45 to hit, thereby there is big difficulty in pile sinking.If adopt the D-128 hammer to carry out pile sinking, it is many hammering number then can to occur, phenomenons such as pile penetration is little, superelevation; Absolute altitude press in major control at present, and total hammering number hits the mode that combines with pile penetration greater than 1500 and carry out pile sinking control, and on average every day, pile sinking was 5 ~ 6; And superelevation basically all appears in pile foundation; Pile foundation hammering number average surpasses 1500 and hits, and be up to 2631 and hit, even the part pile foundation goes beyond the scope between 3m ~ 5m.This can badly influence whole piling construction quality, and has a strong impact on the piling construction progress.
Summary of the invention
The purpose of the utility model is that the problem that is directed against above-mentioned existence provides a kind of prestressed concrete pipe pile that is easy to pile sinking, in pile driving process, can reduce the pile foundation penetrating resistance, has accelerated pile sinking speed, also can increase to some extent pile foundation later stage bearing capacity.
Above-mentioned purpose realizes through following technical scheme:
Be easy to the prestressed concrete pipe pile of pile sinking, comprise the pile tube body, described pile tube body connects shoe through pile end board, and described pile end board periphery has steel ring.
The described prestressed concrete pipe pile that is easy to pile sinking, the external diameter of described pile tube body are Φ 1000mm.
The described prestressed concrete pipe pile that is easy to pile sinking, the bar diameter of described steel ring are Φ 20-25mm.
Beneficial effect:
1. because pile foundation mainly receives hammer force in the hammering process; Side friction and end-resistance; The side friction of stake causes great difficulty to piling very greatly, and the utility model is employed in the pile end board periphery and adds a drag area that has strengthened the stake point behind the hoop reinforcing steel bar circle and cause end-resistance to become big, along with the side friction of the increase stake of stake point area can diminish accordingly; And the amount that end-resistance increases is far smaller than the amount that side friction diminishes; Like this under the constant situation of hammer force, the drag overall of pile foundation is more than in the past little, so pile sinking is than in the past just easily.
2. through a large amount of evidences, add stirrup after pile sinking obtained test effect preferably, its pile monkey hits number obviously to be reduced; Total hammering number reduce to about multi-hit by original average 1,000 670 hit about; A superelevation does not all appear in its pile foundation, and the final penetration of its pile sinking is all bigger after adopting stirrup, and this project management department is all added the weldering stirrup in shoe place to follow-up pile foundation; Its every day, average pile sinking was 8 ~ 10; Reach 13 pieces/day at most, when guaranteeing the piling construction quality, greatly accelerated the piling construction progress.Because the minimizing of the overall hammering number of pile sinking has significantly reduced the economy spending that pile crown is handled,
3. the utility model can reduce the pile foundation penetrating resistance in pile driving process; Accelerated pile sinking speed; And its Ultimate Bearing Capacity of later stage recovers to be higher than the bearing capacity of original pile tube, thereby not only can reduce the pile foundation resistance of pile sinking phase after improving, and also can increase to some extent pile foundation later stage bearing capacity.
Description of drawings
The structural representation of Fig. 1, the utility model.
The A-A sectional drawing of Fig. 2, Fig. 1.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment, further illustrate the utility model.
Embodiment 1:
Shown in accompanying drawing 1-2: be easy to the prestressed concrete pipe pile of pile sinking, comprise pile tube body 1, described pile tube body connects shoe 3 through pile end board 2, and described pile end board periphery has steel ring 4.
Embodiment 2:
The described prestressed concrete pipe pile that is easy to pile sinking, the external diameter of described pile tube body are Φ 1000mm.
Embodiment 3:
The described prestressed concrete pipe pile that is easy to pile sinking, the bar diameter of described steel ring are Φ 20-25mm.
The disclosed technological means of the utility model scheme is not limited only to the disclosed technological means of above-mentioned technological means, also comprises the technical scheme of being made up of above technical characterictic combination in any.
Claims (3)
1. a prestressed concrete pipe pile that is easy to pile sinking comprises the pile tube body, it is characterized in that: described pile tube body connects shoe through pile end board, and described pile end board periphery has steel ring.
2. the prestressed concrete pipe pile that is easy to pile sinking according to claim 1 is characterized in that: the external diameter of described pile tube body is Φ 1000mm.
3. the prestressed concrete pipe pile that is easy to pile sinking according to claim 1 is characterized in that: the bar diameter of described steel ring is Φ 20-25mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220168713 CN202577289U (en) | 2012-04-20 | 2012-04-20 | Prestressed concrete pipe pile with easiness for pile sinking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220168713 CN202577289U (en) | 2012-04-20 | 2012-04-20 | Prestressed concrete pipe pile with easiness for pile sinking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202577289U true CN202577289U (en) | 2012-12-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220168713 Expired - Lifetime CN202577289U (en) | 2012-04-20 | 2012-04-20 | Prestressed concrete pipe pile with easiness for pile sinking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202577289U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104746476A (en) * | 2013-12-30 | 2015-07-01 | 上海中交水运设计研究有限公司 | Wharf additionally provided with batter pile on rear edge and method for reinforcing wharf rear edge by applying batter pile |
| CN106638595A (en) * | 2015-10-28 | 2017-05-10 | 上海十三冶建设有限公司 | Concrete prefabricated pile rapid sinking method |
| CN107119683A (en) * | 2016-02-24 | 2017-09-01 | 上海宝冶集团有限公司 | A kind of method of reduction PHC pile tube penetrating resistances |
-
2012
- 2012-04-20 CN CN 201220168713 patent/CN202577289U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104746476A (en) * | 2013-12-30 | 2015-07-01 | 上海中交水运设计研究有限公司 | Wharf additionally provided with batter pile on rear edge and method for reinforcing wharf rear edge by applying batter pile |
| CN106638595A (en) * | 2015-10-28 | 2017-05-10 | 上海十三冶建设有限公司 | Concrete prefabricated pile rapid sinking method |
| CN107119683A (en) * | 2016-02-24 | 2017-09-01 | 上海宝冶集团有限公司 | A kind of method of reduction PHC pile tube penetrating resistances |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121205 |
|
| CX01 | Expiry of patent term |