CN102839662A - Recyclable reinforcement stiffening pile with multiple anchor heads for foundation pit supporting - Google Patents
Recyclable reinforcement stiffening pile with multiple anchor heads for foundation pit supporting Download PDFInfo
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- CN102839662A CN102839662A CN2012103639662A CN201210363966A CN102839662A CN 102839662 A CN102839662 A CN 102839662A CN 2012103639662 A CN2012103639662 A CN 2012103639662A CN 201210363966 A CN201210363966 A CN 201210363966A CN 102839662 A CN102839662 A CN 102839662A
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Abstract
The invention provides a recyclable reinforcement stiffening pile with multiple anchor heads for foundation pit supporting. For the recyclable reinforcement stiffening pile, a plurality of independent pull-out-resistant structural bodies are arranged in a pile body, and capable of effectively dispersing the pressure and enhancing the pull-out resistance of the pile body. According to the invention, the influence on a surrounding environment during excavation for a foundation pit is reduced, the defect of small pull-out resistance of the recycling stiffening pile is effectively overcome, and the application range of the recyclable stiffening pile in the foundation pit supporting is expanded.
Description
Technical field
The present invention relates to technical field of civil engineering, the anchoring of particularly using in quick reinforcing of deep foundation pit support and ground and the anchoring engineering is with the stake of putting more energy into.
Background technology
Deep foundation pit support engineering commonly used at present; The cement-soil stake of putting more energy into has higher uplift resistance, in some weak soil layers, has obtained application, but the steel strand that the reinforcement body adopts; After foundation pit enclosure structure completion effect, often stay in underground formation obstruction; Thereby limit the application of this kind support form, the stake of putting more energy into of recyclable reinforcement body has been invented by our unit for this reason, and number of patent application is 201120265140.3.
For the soft clay area base pit engineering, because ground scholar's water content is big, water level is generally higher, and anchor pole is all located below the groundwater table, its scholar's engineering properties is relatively poor, causes this The Application of Technology to receive a lot of restrictions.Therefore, to the characteristics of soft scholar's deep foundation pit support, through the research to the bolt support mechanism and the method for designing of soft soil foundation pit, exploitation has higher anchored force, the good stake of putting more energy into of Deformation control is urgent the urgent need.
Anti-pulling of anchor bar is mainly from the anchor head position of its head; Form the major part of a resistance to plucking on the bar at anchor head place, thereby make anchor pole have anchored force, the frictional resistance at the size of anchored force and this anchor head place has direct relation; If can increase the quantity of anchor head, then anchored force can increase.
Summary of the invention
Technical problem to be solved by this invention is; Overcome the little problem of anchored force of the anchor pile existence of existing recyclable reinforcement body; A kind of stake of putting more energy into that is used for the recyclable reinforcement body of many anchor heads of pattern foundation pit supporting structure is provided, and its pile body inside has a plurality of anchor heads, can effectively improve the uplift resistance of pile body.
In order to address the above problem technical scheme of the present invention is such:
A kind of stake of putting more energy into that is used for the recyclable reinforcement body of many anchor heads of pattern foundation pit supporting structure; It is characterized in that, comprise a pile body, be provided with a plurality of independently resistance to plucking structures in the pile body; Each resistance to plucking structure is connected with the reinforcement body, and the reinforcement body is locked on the waist rail in the foundation ditch through one or more ground tackles.
Resistance to plucking structure front and back on the pile body direction are arranged.
The resistance to plucking structure is arranged in parallel on the pile body direction.
Said reinforcement body takes the shape of the letter U around hanging on the resistance to plucking structure.
Said a plurality of resistance to plucking structure is not on the same axis of pile body.
Said a plurality of resistance to plucking structure is on the same axis of pile body.
The pile body of stake of putting more energy into is the pile body that churning and/or the cement soil pile that stir to form or cement paste perfusion form.
Said resistance to plucking structure is solid or hollow nonmetal cylindrical body, and cylindrical body and reinforcement body interconnect.
Beneficial effect: a kind of stake of putting more energy into that is used for the recyclable reinforcement body of many anchor heads of pattern foundation pit supporting structure of the present invention, owing to have a plurality of anchor heads, anchored force strengthens greatly, has reduced put more energy into a quantity and length in the unit soil body, reduces construction costs, energy-conserving and environment-protective.
Description of drawings
Specify the present invention below in conjunction with the accompanying drawing and the specific embodiment;
Fig. 1 is the pilework sketch map of putting more energy into of many anchor heads of the present invention.
Fig. 2 is the pilework sketch map of putting more energy into of the many anchor heads of another kind of the present invention.
The specific embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect and be easy to understand and understand, below in conjunction with concrete diagram, further set forth the present invention.
Embodiment 1, and referring to Fig. 1, the pile body structure of these many anchor heads does; Comprise the pile body 1 that a rotary jet stirring pile body or cementation form; The stake of putting more energy into that forms is through burying reinforcement body 2 underground in the well cementing body or in the rotary jet stirring pile body, be provided with a plurality of resistance to plucking structures 3 in the pile body, and resistance to plucking structure 3 is connected with reinforcement body 2; Connected mode is that reinforcement body 2 takes the shape of the letter U around hanging on the resistance to plucking structure 3, forms the structure of recyclable reinforcement body.One of them resistance to plucking structure is arranged on the axis of pile body, in addition the oblique axis that stretches out pile body of other resistance to plucking structure.Each resistance to plucking structure all is connected with reinforcement body 2, and reinforcement body 2 is locked at the waist rail place.Shown in the figure is the structure of two resistance to plucking structures.
During construction, adopt special drilling tool, along the center of this pile body the resistance to plucking structure is sent in the pile body and goes; If the oblique pile body axis that stretches out of this resistance to plucking structure; Then, change and creep into angle, can the oblique resistance to plucking structure that stretches out be sent in the pile body in the corresponding position.
Soil layers such as main application soil layer such as mucky soil, clay, silt, sand, decomposed rock in the present embodiment, this puts more energy into stake in short curing time, can obtain higher uplift resistance.When adopting non-bending steel cable, after accomplishing supporting or anchorage effect, can realize the recovery fully of dowel.
Perhaps, though two resistance to plucking structures at grade, it is arranged apart to be the branch shape.
The purpose that a plurality of anchor heads are set is in order to increase the frictional resistance of an end of putting more energy into, thereby increases the uplift resistance of pile body.
During construction, adopt special drilling tool, along the center of this pile body the resistance to plucking structure of far-end is sent in the pile body and goes, successively the resistance to plucking structure of near-end is being sent in the pile body.Reclaim the reinforcement body if desired, then reclaim earlier the reinforcement body 2 on the resistance to plucking structure of most proximal end, be recycled to the reinforcement body 2 on the resistance to plucking structure of distal-most end successively.All the other are with embodiment 1.
More than show and described basic principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; The present invention is not restricted to the described embodiments; That describes in the foregoing description and the manual just explains principle of the present invention; The present invention also has various changes and modifications under the prerequisite that does not break away from spirit and scope of the invention, and these variations and improvement all fall in the scope of the invention that requires protection.The present invention requires protection domain to be defined by appending claims and equivalent thereof.
Claims (8)
1. stake of putting more energy into that is used for the recyclable reinforcement body of many anchor heads of pattern foundation pit supporting structure; It is characterized in that, comprise a pile body, be provided with a plurality of independently resistance to plucking structures in the pile body; Each resistance to plucking structure is connected with the reinforcement body, and the reinforcement body is locked on the waist rail in the foundation ditch through one or more ground tackles.
2. a kind of stake of putting more energy into that is used for the recyclable reinforcement body of many anchor heads of pattern foundation pit supporting structure according to claim 1 is characterized in that, resistance to plucking structure front and back on the pile body direction are arranged.
3. a kind of stake of putting more energy into that is used for the recyclable reinforcement body of many anchor heads of pattern foundation pit supporting structure according to claim 1 is characterized in that the resistance to plucking structure is arranged in parallel on the pile body direction.
4. a kind of stake of putting more energy into that is used for the recyclable reinforcement body of many anchor heads of pattern foundation pit supporting structure according to claim 1 is characterized in that said reinforcement body takes the shape of the letter U around hanging on the resistance to plucking structure.
5. a kind of stake of putting more energy into that is used for the recyclable reinforcement body of many anchor heads of pattern foundation pit supporting structure according to claim 2 is characterized in that said a plurality of resistance to plucking structures are not on the same axis of pile body.
6. a kind of stake of putting more energy into that is used for the recyclable reinforcement body of many anchor heads of pattern foundation pit supporting structure according to claim 2 is characterized in that said a plurality of resistance to plucking structures are on the same axis of pile body.
7. the stake of putting more energy into of a kind of many anchor heads according to claim 1 is characterized in that, the pile body of the stake of putting more energy into is churning and/or stirs the cement soil pile or the cement paste that form and pour into the pile body that forms.
8. the stake of putting more energy into of a kind of many anchor heads according to claim 2 is characterized in that, said resistance to plucking structure is solid or hollow nonmetal cylindrical body, and cylindrical body and reinforcement body interconnect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103639662A CN102839662A (en) | 2012-09-26 | 2012-09-26 | Recyclable reinforcement stiffening pile with multiple anchor heads for foundation pit supporting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103639662A CN102839662A (en) | 2012-09-26 | 2012-09-26 | Recyclable reinforcement stiffening pile with multiple anchor heads for foundation pit supporting |
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| Publication Number | Publication Date |
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| CN102839662A true CN102839662A (en) | 2012-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012103639662A Pending CN102839662A (en) | 2012-09-26 | 2012-09-26 | Recyclable reinforcement stiffening pile with multiple anchor heads for foundation pit supporting |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153374A (en) * | 2014-08-26 | 2014-11-19 | 上海强劲地基工程股份有限公司 | Combined foundation pit supporting structure with inclined strut and pull anchor |
| CN109162281A (en) * | 2018-09-05 | 2019-01-08 | 江苏兴厦建设工程集团有限公司 | A kind of more anchor disk jet mixing stiffening piles |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4036137A (en) * | 1974-06-19 | 1977-07-19 | Losinger Ag Of Bern | Method and means of extracting a soil anchor consisting of a prestressed steel tendon |
| CN101649614A (en) * | 2008-08-14 | 2010-02-17 | 刘全林 | Variable-diameter multi-direction anchor pile |
| CN201411689Y (en) * | 2009-05-08 | 2010-02-24 | 中冶实久建设有限公司 | Expansion type anchoring pile |
| CN102330427A (en) * | 2011-07-23 | 2012-01-25 | 上海强劲地基工程股份有限公司 | Stiffening pile with high uplift resistance |
| CN202164599U (en) * | 2011-07-23 | 2012-03-14 | 上海强劲地基工程股份有限公司 | Reinforcing pile enabling reinforcing rib body to be recycled |
| CN102561337A (en) * | 2012-02-09 | 2012-07-11 | 上海强劲地基工程股份有限公司 | Sand-filling stiffening pile |
| CN202755361U (en) * | 2012-09-26 | 2013-02-27 | 上海强劲地基工程股份有限公司 | Multiple-anchor-head recoverable-reinforcement-body stiffening pile used for supporting foundation pit |
-
2012
- 2012-09-26 CN CN2012103639662A patent/CN102839662A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4036137A (en) * | 1974-06-19 | 1977-07-19 | Losinger Ag Of Bern | Method and means of extracting a soil anchor consisting of a prestressed steel tendon |
| CN101649614A (en) * | 2008-08-14 | 2010-02-17 | 刘全林 | Variable-diameter multi-direction anchor pile |
| CN201411689Y (en) * | 2009-05-08 | 2010-02-24 | 中冶实久建设有限公司 | Expansion type anchoring pile |
| CN102330427A (en) * | 2011-07-23 | 2012-01-25 | 上海强劲地基工程股份有限公司 | Stiffening pile with high uplift resistance |
| CN202164599U (en) * | 2011-07-23 | 2012-03-14 | 上海强劲地基工程股份有限公司 | Reinforcing pile enabling reinforcing rib body to be recycled |
| CN102561337A (en) * | 2012-02-09 | 2012-07-11 | 上海强劲地基工程股份有限公司 | Sand-filling stiffening pile |
| CN202755361U (en) * | 2012-09-26 | 2013-02-27 | 上海强劲地基工程股份有限公司 | Multiple-anchor-head recoverable-reinforcement-body stiffening pile used for supporting foundation pit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153374A (en) * | 2014-08-26 | 2014-11-19 | 上海强劲地基工程股份有限公司 | Combined foundation pit supporting structure with inclined strut and pull anchor |
| CN109162281A (en) * | 2018-09-05 | 2019-01-08 | 江苏兴厦建设工程集团有限公司 | A kind of more anchor disk jet mixing stiffening piles |
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Application publication date: 20121226 |