CN204282388U - A kind of pile foundation reinforcement structure adopting compound pile to construct - Google Patents
A kind of pile foundation reinforcement structure adopting compound pile to construct Download PDFInfo
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- CN204282388U CN204282388U CN201420650621.XU CN201420650621U CN204282388U CN 204282388 U CN204282388 U CN 204282388U CN 201420650621 U CN201420650621 U CN 201420650621U CN 204282388 U CN204282388 U CN 204282388U
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- 150000001875 compounds Chemical class 0.000 title claims abstract description 41
- 230000002787 reinforcement Effects 0.000 title claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 32
- 239000010959 steel Substances 0.000 claims abstract description 32
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 15
- 238000010276 construction Methods 0.000 claims description 14
- 238000004062 sedimentation Methods 0.000 abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 239000011230 binding agent Substances 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 208000028804 PERCHING syndrome Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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- Piles And Underground Anchors (AREA)
Abstract
The utility model relates to a kind of pile foundation reinforcement structure adopting compound pile to construct, and belongs to Foundation Design technical field.This structure comprises compound pile, former pile foundation and cushion cap, according to the actual requirements compound pile is arranged on around former pile foundation, by cushion cap, compound pile and former pile foundation are connected into entirety, make both shared loads, improve the bearing capacity adding a region, reach the object stoping and reduce sedimentation, compound pile comprises high-pressure rotary jet grouting pile, steel pipe and reinforcing bar, steel pipe is inserted in center, stake top before the final set of high-pressure rotary jet grouting pile pile body, the total length of some steel pipes of inserting is equal with high-pressure rotary jet grouting pile height, embedded bar on the steel pipe of the inner top of high-pressure rotary jet grouting pile, cushion cap and former pile foundation integrated connection is obtained at reinforcing bar upper.This structure can make new and old pile foundation by cushion cap shared load, effectively solves the sedimentation of former pile foundation and the problem of Lack of support.
Description
Technical field
The utility model relates to a kind of pile foundation reinforcement structure adopting compound pile to construct, and belongs to Foundation Design technical field.
Background technology
Due to the impact of the factor such as geological conditions, construction factor, pile foundation often cannot reach design bearing capacity, can cause the phenomenon such as pile foundation settlement, superstructure cracking, therefore usually there is the problem of pile foundation reinforcement.Along with the construction of more and more engineering, the problem of bearing capacity of pile foundation deficiency just becomes the outstanding problem in engineering construction, and bearing capacity of pile foundation is improved, and adopts reasonable, economic ground stabilization measure, has great technological value and economic implications.
Summary of the invention
For above-mentioned prior art Problems existing and deficiency, the utility model provides a kind of pile foundation reinforcement structure adopting compound pile to construct.This structure can make new and old pile foundation by cushion cap shared load, and effectively solve the sedimentation of former pile foundation and the problem of Lack of support, the utility model is achieved through the following technical solutions.
A kind of pile foundation reinforcement structure adopting compound pile to construct, comprise compound pile 1, former pile foundation 2 and cushion cap 3, according to the actual requirements compound pile 1 is arranged on former pile foundation 2 around, by cushion cap 3, compound pile 1 and former pile foundation 2 are connected into entirety, make both shared loads, improve the bearing capacity adding a region, reach the object stoping and reduce sedimentation, compound pile 1 comprises high-pressure rotary jet grouting pile 4, steel pipe 5 and reinforcing bar 6, steel pipe 5 is inserted in center, stake top before the final set of high-pressure rotary jet grouting pile 4 pile body, the total length of some steel pipes 5 of inserting is highly equal with high-pressure rotary jet grouting pile 4, embedded bar 6 on the steel pipe 5 of the inner top of high-pressure rotary jet grouting pile 4, cushion cap 3 and former pile foundation 2 integrated connection is obtained at reinforcing bar 6 upper.
The diameter of described high-pressure rotary jet grouting pile 4 is 0.8m ~ 1.5m.
The diameter of described steel pipe 5 is 0.15m ~ 0.45m, and length is 3 ~ 6m.
Described cushion cap 3 pours into polygon, square or rectangle according to the actual requirements.
Above-mentioned high-pressure rotary jet grouting pile 4 can adopt single pipe method, double-pipe method or three tube method to pour into a mould, and the water/binder ratio of the water under high pressure mud of cast is 1:1 ~ 1.5:1.
The size of above-mentioned cushion cap 3 bearing capacity adopts the concrete of C30 and above strength grade to build, and by relevant requirements maintenance and form removal.
Combinations thereof stake 1 can be played and pull together and control heavy double action, and its length should be determined according to the size of its role.
This structure according to sedimentation situation, the location prominence of former pile foundation, suitably can expand and add a region.
The utility model uses step as follows:
(1) according to place geological conditions and former pile foundation settlement degree, compound pile construction technology and parameter is determined;
(2) measuring spot plane Controling network;
(3) axis and the setting-out of stake position, pile-forming machine perching;
(4) Construction of High Pressure Jet Grouting Pile is carried out in design position, hole;
(5) steel pipe is sunk in segmented past high-pressure rotary jet grouting pile center, is threaded connection;
(6) construction that the operations such as above Construction of High Pressure Jet Grouting Pile → heavy steel pipe carry out other compound piles is repeated;
(7) bearing platform construction.
The beneficial effects of the utility model are: this structure connects into entirety by compound pile by cushion cap and former pile foundation, and both shared loads, improve the bearing capacity adding a region, effectively solve the sedimentation of former pile foundation and the problem of Lack of support.
Accompanying drawing explanation
Fig. 1 is the utility model structural plan schematic diagram;
Fig. 2 is the utility model structure front elevational schematic;
Fig. 3 is the utility model compound pile structural representation.
In figure: 1-compound pile, the former pile foundation of 2-, 3-cushion cap, 4-high-pressure rotary jet grouting pile, 5-steel pipe, 6-reinforcing bar.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Embodiment 1
As Figure 1-3, the pile foundation reinforcement structure of this employing compound pile construction, comprise compound pile 1, former pile foundation 2 and cushion cap 3, according to the actual requirements compound pile 1 is arranged on former pile foundation 2 around, by cushion cap 3, compound pile 1 and former pile foundation 2 are connected into entirety, make both shared loads, improve the bearing capacity adding a region, reach the object stoping and reduce sedimentation, compound pile 1 comprises high-pressure rotary jet grouting pile 4, steel pipe 5 and reinforcing bar 6, steel pipe 5 is inserted in center, stake top before the final set of high-pressure rotary jet grouting pile 4 pile body, the total length of some steel pipes 5 of inserting is highly equal with high-pressure rotary jet grouting pile 4, embedded bar 6 on the steel pipe 5 of the inner top of high-pressure rotary jet grouting pile 4, reinforcing bar 6 diameter is 4, diameter is 20mm, cushion cap 3 and former pile foundation 2 integrated connection is obtained at reinforcing bar 6 upper.
Wherein the diameter of high-pressure rotary jet grouting pile 4 is 0.8m; High-pressure rotary jet grouting pile 4 can adopt single pipe method to pour into a mould, and the water/binder ratio of the water under high pressure mud of cast is 1:1; The diameter of steel pipe 5 is 0.2m, and length is 3m; Cushion cap 3 pours into hexagon according to the actual requirements.
Embodiment 2
The pile foundation reinforcement structure of this employing compound pile construction, comprise compound pile 1, former pile foundation 2 and cushion cap 3, according to the actual requirements compound pile 1 is arranged on former pile foundation 2 around, by cushion cap 3, compound pile 1 and former pile foundation 2 are connected into entirety, make both shared loads, improve the bearing capacity adding a region, reach the object stoping and reduce sedimentation, compound pile 1 comprises high-pressure rotary jet grouting pile 4, steel pipe 5 and reinforcing bar 6, steel pipe 5 is inserted in center, stake top before the final set of high-pressure rotary jet grouting pile 4 pile body, the total length of some steel pipes 5 of inserting is highly equal with high-pressure rotary jet grouting pile 4, embedded bar 6 on the steel pipe 5 of the inner top of high-pressure rotary jet grouting pile 4, reinforcing bar 6 diameter is 5, diameter is 22mm, cushion cap 3 and former pile foundation 2 integrated connection is obtained at reinforcing bar 6 upper.
Wherein the diameter of high-pressure rotary jet grouting pile 4 is 0.9m, and high-pressure rotary jet grouting pile 4 can adopt double-pipe method, and the water/binder ratio of the water under high pressure mud of cast is 1.2:1; The diameter of steel pipe 5 is 0.3m, and length is 4m.Cushion cap 3 pours into square according to the actual requirements.
Embodiment 3
The pile foundation reinforcement structure of this employing compound pile construction, comprise compound pile 1, former pile foundation 2 and cushion cap 3, according to the actual requirements compound pile 1 is arranged on former pile foundation 2 around, by cushion cap 3, compound pile 1 and former pile foundation 2 are connected into entirety, make both shared loads, improve the bearing capacity adding a region, reach the object stoping and reduce sedimentation, compound pile 1 comprises high-pressure rotary jet grouting pile 4, steel pipe 5 and reinforcing bar 6, steel pipe 5 is inserted in center, stake top before the final set of high-pressure rotary jet grouting pile 4 pile body, the total length of some steel pipes 5 of inserting is highly equal with high-pressure rotary jet grouting pile 4, embedded bar 6 on the steel pipe 5 of the inner top of high-pressure rotary jet grouting pile 4, reinforcing bar 6 diameter is 6, diameter is 25mm, cushion cap 3 and former pile foundation 2 integrated connection is obtained at reinforcing bar 6 upper.
Wherein the diameter of high-pressure rotary jet grouting pile 4 is 1.5m; High-pressure rotary jet grouting pile 4 can adopt three tube method cast, and the water/binder ratio of the water under high pressure mud of cast is 1.5:1; The diameter of steel pipe 5 is 0.45m, and length is 6m; Cushion cap 3 pours into rectangle according to the actual requirements.
By reference to the accompanying drawings detailed description of the invention of the present utility model is explained in detail above, but the utility model is not limited to above-mentioned embodiment, in the ken that those of ordinary skill in the art possess, various change can also be made under the prerequisite not departing from the utility model aim.
Claims (4)
1. the pile foundation reinforcement structure adopting compound pile to construct, it is characterized in that: comprise compound pile (1), former pile foundation (2) and cushion cap (3), according to the actual requirements compound pile (1) is arranged on former pile foundation (2) around, by cushion cap (3), compound pile (1) and former pile foundation (2) are connected into entirety, compound pile (1) comprises high-pressure rotary jet grouting pile (4), steel pipe (5) and reinforcing bar (6), steel pipe (5) is inserted in center, stake top before high-pressure rotary jet grouting pile (4) pile body final set, the total length of some steel pipes (5) of inserting is highly equal with high-pressure rotary jet grouting pile (4), the upper embedded bar (6) of steel pipe (5) of high-pressure rotary jet grouting pile (4) inner top, cushion cap (3) and former pile foundation (2) integrated connection is obtained at reinforcing bar (6) upper.
2. the pile foundation reinforcement structure of employing compound pile construction according to claim 1, is characterized in that: the diameter of described high-pressure rotary jet grouting pile (4) is 0.8m ~ 1.5m.
3. the pile foundation reinforcement structure of employing compound pile construction according to claim 1, is characterized in that: the diameter of described steel pipe (5) is 0.15m ~ 0.45m, and length is 3 ~ 6m.
4. the pile foundation reinforcement structure of employing compound pile construction according to claim 1, is characterized in that: described cushion cap (3) pours into polygon, square or rectangle according to the actual requirements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420650621.XU CN204282388U (en) | 2014-11-04 | 2014-11-04 | A kind of pile foundation reinforcement structure adopting compound pile to construct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420650621.XU CN204282388U (en) | 2014-11-04 | 2014-11-04 | A kind of pile foundation reinforcement structure adopting compound pile to construct |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204282388U true CN204282388U (en) | 2015-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420650621.XU Expired - Fee Related CN204282388U (en) | 2014-11-04 | 2014-11-04 | A kind of pile foundation reinforcement structure adopting compound pile to construct |
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| Country | Link |
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| CN (1) | CN204282388U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108457204A (en) * | 2018-02-10 | 2018-08-28 | 北京工业大学 | One kind carrying out bracing means for old Bridge Foundation Lack of support |
| CN111155572A (en) * | 2020-01-08 | 2020-05-15 | 同济大学 | Old pile utilization method for adjusting rigidity of new pile and old pile by using geogrid |
| CN111576920A (en) * | 2020-06-03 | 2020-08-25 | 中天建设集团有限公司 | Reinforced foundation for building foundation and construction method thereof |
-
2014
- 2014-11-04 CN CN201420650621.XU patent/CN204282388U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108457204A (en) * | 2018-02-10 | 2018-08-28 | 北京工业大学 | One kind carrying out bracing means for old Bridge Foundation Lack of support |
| CN111155572A (en) * | 2020-01-08 | 2020-05-15 | 同济大学 | Old pile utilization method for adjusting rigidity of new pile and old pile by using geogrid |
| CN111576920A (en) * | 2020-06-03 | 2020-08-25 | 中天建设集团有限公司 | Reinforced foundation for building foundation and construction method thereof |
| CN111576920B (en) * | 2020-06-03 | 2021-09-10 | 中天建设集团有限公司 | Reinforced foundation for building foundation and construction method thereof |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 Termination date: 20161104 |
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| CF01 | Termination of patent right due to non-payment of annual fee |