CN203639903U - Side friction enhancement type precast tube pile structure - Google Patents
Side friction enhancement type precast tube pile structure Download PDFInfo
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- CN203639903U CN203639903U CN201320821911.1U CN201320821911U CN203639903U CN 203639903 U CN203639903 U CN 203639903U CN 201320821911 U CN201320821911 U CN 201320821911U CN 203639903 U CN203639903 U CN 203639903U
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Abstract
The utility model relates to a side friction enhancement type precast tube pile structure. The side friction enhancement type precast tube pile structure is characterized in that horizontal grouting holes are evenly formed in the sidewall of a precast tube pile, and horizontal plastic grouting pipes are embedded in the horizontal grouting holes; the horizontal plastic grouting pipes are communicated with vertical steel grouting pipes; geotechnical cloth bags are annularly wrapped on the outer side of a pile body of a prestressed pipe pile corresponding to the positions of the horizontal grouting holes and are connected with the pile body through upper steel hoops and lower steel hoops, the steel hoops are clamped in annular grooves in the pile body, and the geotechnical cloth bags are filled with flexible reinforcing ribs; the precast tube pile is provided with side friction bag-type reinforcing bodies formed on the sidewall through high-pressure grouting of the grouting pipes. Compared with a traditional pile side and pile end grouting mode, the side friction enhancement type precast tube pile structure is relatively simple in process, less in required grout quantity, and the grouting pipes are convenient to recycle; the geotechnical cloth bags can control grout within an effective range, so the grout can be fully utilized; through the arrangement of the geotechnical cloth bags and the flexible reinforcing ribs, the bearing performance of the injected grout can be developed; the side friction enhancement type precast tube pile structure has good technical and economical benefits.
Description
Technical field
The utility model relates to a kind of side friction enhancement mode prefabricated tubular pile structure.Belong to ground process field, be applicable to foundation engineering, be specially adapted to require pile body side friction high, the foundation engineering that pile body load-carrying properties are good and construction technology is easy.
Background technology
In construction work, pile foundation is the most frequently used base form.Along with the fast-developing and scientific and technical breakthrough and constantly progress of modern architecture industry, pile foundation develops into reinforced concrete pile and piling bar gradually from the timber starting most, and meanwhile, the construction method of pile foundation and construction machinery have also had significant progress.In order to meet contemporary building quality standard, system stake technique has also had larger change.Prefabricated tubular pile is to produce at professional modern plant, has had ripe production technology and complete qulity management system, and therefore, prefabricated tubular pile has obtained general use in the whole nation.
The resistance to hammering bearing capacity good, single pile of prefabricated tubular pile pile body is high, and cost also cheap, penetration power is strong, also can save a large amount of human and material resources and financial resources, has good economic benefit and social benefit, therefore, is widely used in the processing of soft foundation.But based on the construction features of common prefabricated tubular pile pile body surface light circle, after pile sinking, due to the little engineering defect that there will be Lack of support of pile body side friction.
At present, the method for solution pile body side friction deficiency has multiple, and traditional handicraft is passed through Slurry injection on pile end and side, utilize slurries further to strengthen the bonding strength of pile body and all soil of stake, but traditional slip casting needs slurries amount large, and slurries diffusion is random, DeGrain, also can cause soil pollution; Secondly, construct to increase pile side friction by changing pile body, for example support disk pile, but support disk pile manufacturing process difficulty is large, and pile sinking is also comparatively difficult, and pile body cost is higher, and economic benefit is low.
In sum, although the method for more existing solution pile body side friction deficiencies in foundation engineering, comparatively complexity of making or construction, and side friction mostly strengthens DeGrain, and part construction technology cost is high, and technical difficulty is large, and social benefit is low.Given this, hinder hypodynamic problem in order to solve prefabricated tubular pile pile body side form, need at present a kind of technique of invention badly relatively simple, when improving pile side friction and supporting capacity, there is again the side friction enhancement mode prefabricated tubular pile structure of good technical economic benefit.
Summary of the invention
The purpose of this utility model is to form side friction bag-shaped intensive aspect by slip casting at pile tube sidewall after prefabricated tubular pile sets, thereby provides that a kind of side friction is large, pile body load-carrying properties are good, slurries utilization rate is high and have the pile body structure of better technical economic benefit.
A kind of side friction enhancement mode prefabricated tubular pile structure, is characterized in that being evenly provided with horizontal injected hole at prefabricated tubular pile sidewall, is embedded with horizontal plastics Grouting Pipe in it; Laterally plastics Grouting Pipe is communicated with vertical steel Grouting Pipe; The pile for prestressed pipe pile body outer ring of corresponding laterally injected hole position is to being enclosed with geotechnological cloth bag, and geotechnological cloth bag is connected by upper and lower two steel hoops with pile body, and steel hoop is arranged in the circumferential groove of pile body, filling flexible reinforcing body in geotechnological cloth bag; On prefabricated tubular pile, there is the bag-shaped intensive aspect of side friction forming at sidewall by Grouting Pipe high-pressure slip-casting.
Described geotechnological cloth bag is made up of waterproof high-abrasive material.
Described vertical steel Grouting Pipe pipe side is prefabricated with multiple connectors, distributes and is used for connecting horizontal plastics Grouting Pipe, and laterally plastics Grouting Pipe adopts seal with elastometic washer to be connected with steel connector.
The utlity model has following feature and beneficial effect:
(1) geotechnological cloth bag has impermeability, the slurries of injection can be controlled in effective range, thus the utilization rate of raising slurries.
(2) filling flexible reinforcing body in geotechnological cloth bag, can effectively bring into play the load-carrying properties of injecting slurries, also further increases pile side friction.
(3) laterally plastics Grouting Pipe adopts sealing rubber ring to be connected with vertical steel Grouting Pipe, can guarantee grouting quality on the one hand, on the other hand, after slip casting completes, facilitates the recycling of vertical steel Grouting Pipe.
Accompanying drawing explanation
Fig. 1 is the stereogram of the utility model side friction enhancement mode prefabricated tubular pile structure;
Fig. 2 is the part sectioned view of the utility model side friction enhancement mode prefabricated tubular pile structure;
In figure: 1-precast pile tip, 2-precast pile, 3-steel hoop, 4-geotechnique cloth bag, 5-steel Grouting Pipe, 6-flexible reinforcement body, 7-plastics Grouting Pipe, 8-rubber ring.
The specific embodiment
Prefabricated tubular pile pile body manufacture craft, colligation technical requirements and the grouting process etc. of geotechnological cloth bag and garter spring, be not repeated in present embodiment, and emphasis is set forth the embodiment that the utility model relates to structure.
Fig. 1 is the stereogram of the utility model side friction enhancement mode prefabricated tubular pile structure; Fig. 2 is the part sectioned view of the utility model side friction enhancement mode prefabricated tubular pile structure.
With reference to the side friction enhancement mode prefabricated tubular pile structure shown in Fig. 1, Fig. 2, prefabricated tubular pile sidewall evenly arranges horizontal injected hole, is embedded with horizontal plastics Grouting Pipe 7 in it; Pile for prestressed pipe pile body 2 outer rings of corresponding laterally injected hole position are to being enclosed with geotechnological cloth bag 4, at the interior filling flexible reinforcing body 6 of geotechnological cloth bag 4; After setting, prefabricated tubular pile by the Grouting Pipe high-pressure slip-casting of inwall, forms the bag-shaped intensive aspect of side friction at sidewall; After slip casting completes, Grouting Pipe is reclaimed to recycling.
Prefabricated tubular pile stake is long is 10000mm, and specification is φ 600 × 100mm, and precast pile tip 1 diameter is 800mm, adopts the concrete for making that grade strength is C30 to form.Precast pile 2 sidewalls arrange one group of horizontal injected hole apart from stake top every 3000mm, and same pile body cross section evenly arranges 3 horizontal injected holes, and aperture is 60mm; Horizontal injected hole 2 annular grooves setting up and down of equal altitudes, groove distance hole position 150mm, groove width 50mm, groove depth 10mm.
In precast pile 2 grooves, be embedded steel hoop 3, it is prefabricated the forming of steel plate of Q345 that steel hoop 3 adopts strength grade, and wide is 50mm, and thick is 8mm.Single steel hoop 3 is made up of symmetrical two parts, by two groups of bolt anchorings.
Geotechnique's cloth bag 4 is waterproof high-abrasive material, and the mode that turn in adopting lower end is fixed by steel hoop 3, then in bag, fills geo-grid, then upper end is fixing with steel hoop 3.
Laterally plastics Grouting Pipe 7 is pvc pipe, and single plastics Grouting Pipe 7 diameters are 60mm, and length is 180mm.It is that the steel pipe of Q345 is made that vertical steel Grouting Pipe 5 adopts strength grade, and diameter is 80mm, and steel Grouting Pipe 5 one end are enclosed construction, and pipe shaft arranges one apart from blind end every 3000mm and connects the mouth of pipe, and connection nozzle diameter is 60mm, and length is 30mm; Before pile sinking, adopt sealing rubber ring 8 to connect with the mouth of pipe that is connected of steel Grouting Pipe 5 plastics Grouting Pipe 7, and horizontal plastics Grouting Pipe 7 is inserted to horizontal injected hole, meanwhile, at pile tube top, steel Grouting Pipe 5 is arranged to support, prevent that it is shifted in the time of slip casting.
After pile sinking completes, by steel Grouting Pipe 5 high-pressure slip-castings, squeezed geotechnological cloth bag 4, forms the bag-shaped intensive aspect of side friction; After slip casting completes, steel Grouting Pipe 5 is reclaimed to recycling.
Claims (3)
1. a side friction enhancement mode prefabricated tubular pile structure, is characterized in that being evenly provided with horizontal injected hole at prefabricated tubular pile sidewall, is embedded with horizontal plastics Grouting Pipe in it; Laterally plastics Grouting Pipe is communicated with vertical steel Grouting Pipe; The pile for prestressed pipe pile body outer ring of corresponding laterally injected hole position is to being enclosed with geotechnological cloth bag, and geotechnological cloth bag is connected by upper and lower two steel hoops with pile body, and steel hoop is arranged in the circumferential groove of pile body, filling flexible reinforcing body in geotechnological cloth bag; On prefabricated tubular pile, there is the bag-shaped intensive aspect of side friction forming at sidewall by Grouting Pipe high-pressure slip-casting.
2. side friction enhancement mode prefabricated tubular pile structure according to claim 1, is characterized in that described geotechnological cloth bag is made up of waterproof high-abrasive material.
3. side friction enhancement mode prefabricated tubular pile structure according to claim 1, it is characterized in that described vertical steel Grouting Pipe pipe side is prefabricated with multiple connectors, distribution is used for connecting horizontal plastics Grouting Pipe, and laterally plastics Grouting Pipe adopts seal with elastometic washer to be connected with steel connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320821911.1U CN203639903U (en) | 2013-12-12 | 2013-12-12 | Side friction enhancement type precast tube pile structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320821911.1U CN203639903U (en) | 2013-12-12 | 2013-12-12 | Side friction enhancement type precast tube pile structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203639903U true CN203639903U (en) | 2014-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320821911.1U Expired - Fee Related CN203639903U (en) | 2013-12-12 | 2013-12-12 | Side friction enhancement type precast tube pile structure |
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| Country | Link |
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| CN (1) | CN203639903U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104499478A (en) * | 2014-12-25 | 2015-04-08 | 山东八闽建筑工程有限公司 | Prefabricated concrete supporting anchored pile |
| CN104652407A (en) * | 2015-01-05 | 2015-05-27 | 同济大学 | Folding type geotechnical-synthetic-material irregular-shaped granular pile with hoop reinforcements and construction method thereof |
| CN109826191A (en) * | 2019-03-22 | 2019-05-31 | 深圳宏业基岩土科技股份有限公司 | The constructing structure of concrete tubular pile |
| CN109868812A (en) * | 2019-03-18 | 2019-06-11 | 绿城乐居建设管理集团有限公司 | A kind of pouch diameter-variable pile and its construction method |
| CN110130324A (en) * | 2019-05-17 | 2019-08-16 | 中南大学 | A kind of micro-steel pile and its construction method |
| CN114517473A (en) * | 2022-02-10 | 2022-05-20 | 江苏开放大学（江苏城市职业学院） | Prefabricated pipe pile suitable for soft soil stratum and capable of effectively enhancing bearing capacity and construction method of prefabricated pipe pile |
-
2013
- 2013-12-12 CN CN201320821911.1U patent/CN203639903U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104499478A (en) * | 2014-12-25 | 2015-04-08 | 山东八闽建筑工程有限公司 | Prefabricated concrete supporting anchored pile |
| CN104652407A (en) * | 2015-01-05 | 2015-05-27 | 同济大学 | Folding type geotechnical-synthetic-material irregular-shaped granular pile with hoop reinforcements and construction method thereof |
| CN109868812A (en) * | 2019-03-18 | 2019-06-11 | 绿城乐居建设管理集团有限公司 | A kind of pouch diameter-variable pile and its construction method |
| CN109826191A (en) * | 2019-03-22 | 2019-05-31 | 深圳宏业基岩土科技股份有限公司 | The constructing structure of concrete tubular pile |
| CN109826191B (en) * | 2019-03-22 | 2024-02-09 | 深圳宏业基岩土科技股份有限公司 | Construction structure of concrete pipe pile |
| CN110130324A (en) * | 2019-05-17 | 2019-08-16 | 中南大学 | A kind of micro-steel pile and its construction method |
| CN110130324B (en) * | 2019-05-17 | 2024-05-24 | 中南大学 | Steel pipe mini pile and construction method thereof |
| CN114517473A (en) * | 2022-02-10 | 2022-05-20 | 江苏开放大学（江苏城市职业学院） | Prefabricated pipe pile suitable for soft soil stratum and capable of effectively enhancing bearing capacity and construction method of prefabricated pipe pile |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20170417 Granted publication date: 20140611 |
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| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20200417 Granted publication date: 20140611 |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140611 Termination date: 20161212 |