CN104594339B - The construction method of concrete-pile - Google Patents
The construction method of concrete-pile Download PDFInfo
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- CN104594339B CN104594339B CN201410721600.7A CN201410721600A CN104594339B CN 104594339 B CN104594339 B CN 104594339B CN 201410721600 A CN201410721600 A CN 201410721600A CN 104594339 B CN104594339 B CN 104594339B
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- 238000010276 construction Methods 0.000 title claims abstract description 47
- 210000000744 eyelid Anatomy 0.000 claims abstract description 38
- 239000002689 soil Substances 0.000 claims abstract description 20
- 239000000203 mixture Substances 0.000 claims abstract description 12
- 238000007599 discharging Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 4
- 239000004576 sand Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000004568 cement Substances 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 238000005553 drilling Methods 0.000 claims description 2
- 239000010881 fly ash Substances 0.000 claims description 2
- 230000002787 reinforcement Effects 0.000 claims description 2
- 230000003068 static effect Effects 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 238000005056 compaction Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 12
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000037237 body shape Effects 0.000 description 1
- 238000012407 engineering method Methods 0.000 description 1
- -1 hard formation Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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- Piles And Underground Anchors (AREA)
Abstract
It is an object of the invention to provide the construction method of a kind of concrete-pile, disposable complete that pore-forming, retaining wall, soil compaction be expanding, the operation of pile body construction, the special pile body formed is remarkably improved the concrete bearing capacity of folk prescription, it is achieved the raising of work efficiency and the saving of cost.Construction method comprises the steps: 1) bottom is drowned into downwards projected depth with the outer tube and interior pipe extending out eyelid retractor simultaneously；2) extending out the outside diastole of eyelid retractor, extruding surrounding soil forms expanding stake holes；3) being lifted up outer tube and interior pipe on one side, inwardly in the internal pipeline of pipe, delivering concrete mix injects expanding stake holes simultaneously；4) being performed continuously over delivering concrete mix and be lifted up outer tube and the operation of interior pipe, until outer tube and interior pipe are proposed foundation surface simultaneously, forming the concrete pile body being relatively large in diameter in ground, the cross section of concrete pile body is special-shaped or circular or square.
Description
Technical field
The present invention relates to field of civil engineering, particularly relate to the construction technology of stake.
Background technology
In the basement process of building, bored concrete pile is conventional base form, it improves the bearing capacity of stake mainly through pile body side friction and part end resistance, therefore the building that requirement for bearing capacity is higher is being run into, or during the situation that in ground, soft layer is deeper, have to pass through to strengthen the mode of pile body diameter and pile body length, meet building demand, therefore dramatically increase construction cost and construction period.Accordingly, it is desirable to a kind of lower-cost, still can meet the stake of the demand.
A kind of novel support disk pile is developed again in recent years on tradition bored concrete pile foundation, its know-why is by arranging force bearing disk or load branch raising bearing capacity of pile tip within the scope of limited pile body soil layer, namely by squeeze equipment at the squeezed formation of appropriate depth expanding disk space with one heart, the purpose improving bearing capacity ofconcreting is reached thus saving cost or reduction of erection time.But can often there is the damaged condition of plant equipment in construction in this pile-type, its reason is, when squeeze equipment forms expanding disk space by rotation mode, the compact earth being wanted squeezed is all very high to the rigidity of squeeze equipment and the requirement of power of motor, therefore the spoilage of construction equipment is exacerbated, particularly being difficult to pile in gravelly soil, sand etc. relatively hard stratum, what cause cost increases the prolongation with the duration.
Summary of the invention
The present invention proposes to solve above-mentioned problem, purpose is in that to provide the construction method of a kind of concrete-pile, disposable complete that pore-forming, retaining wall, soil compaction be expanding, the operation of pile body construction, the special pile body formed is remarkably improved the concrete bearing capacity of folk prescription, it is achieved the raising of work efficiency and the saving of cost.
To achieve these goals, the construction method of the concrete-pile of the present invention comprises the steps:
1) by bottom with extending out the outer tube of eyelid retractor and interior pipe simultaneously to being lowered into, until projected depth；
2) extending out the outside diastole of eyelid retractor, extruding surrounding soil forms expanding stake holes；
3) being lifted up outer tube and interior pipe on one side, inwardly delivering concrete mix in the internal pipeline of pipe, concrete batching system injects expanding stake holes from the discharging opening of interior pipe bottom simultaneously；
4) be performed continuously over above-mentioned steps 3) delivering concrete mix and be lifted up outer tube and interior pipe operation, until outer tube and interior pipe are proposed foundation surface simultaneously, forming the concrete pile body being relatively large in diameter in ground, the cross section of concrete pile body is special-shaped or circular or square；
The above-mentioned eyelid retractor that extends out is to be made up of the telescopic support arm of 2～10 umbrella frame shapes, support arm is connected by pivot pin by upper arm and underarm, upper arm upper end is connected with outer tube bottom by pivot pin, underarm lower end is connected with interior pipe bottom by pivot pin, to when being lowered into outer tube and interior pipe, the support arm extending out eyelid retractor inwardly closes up, and when being lifted up outer tube and interior pipe, extends out the outside diastole of support arm of eyelid retractor.
In the construction method of above-mentioned concrete-pile, above-mentioned steps 1) in, adopt bottom to replace above-mentioned bottom with extending out the outer tube of eyelid retractor and interior pipe with the hollow pipe of multiple hydraulic pressure support arms or a support plate.
In the construction method of above-mentioned concrete-pile, above-mentioned steps 1) in, the above-mentioned lower end extending out eyelid retractor is provided with drill bit or impacts cone, and drill bit or impact cone are provided with discharging opening, and discharging opening is connected with the internal pipeline of interior pipe.
In the construction method of above-mentioned concrete-pile, above-mentioned steps 1) in, above-mentioned by outer tube and interior pipe simultaneously to the mode being lowered into, be that the method for one or several combinations by rotary drilling or hammering or static pressure or vibration realizes.
In the construction method of above-mentioned concrete-pile, above-mentioned steps 2) in, above-mentioned will extend out the outside diastole of eyelid retractor, extruding surrounding soil forms expanding stake holes, and it extends out the mode of the outside diastole of eyelid retractor, including the upper and lower displacement by controlling outer tube and interior pipe, namely fix in outer tube lifts up interior pipe or be fixing and press outer tube under pipe, also including by being arranged at the hydraulic means on outer tube or interior pipe, making the outside arcuately diastole of the support arm extending out eyelid retractor open, thus extruding surrounding soil to form expanding stake holes.
In the construction method of above-mentioned concrete-pile, above-mentioned steps 3) in, the above-mentioned mode being simultaneously lifted up outer tube and interior pipe, be after the oil thread rope stretched out by hoist engine passes around assembly pulley on pull out or top or to realize in the way of one or several combinations of pulling out in vibration on hydraulic top.
In the construction method of above-mentioned concrete-pile, above-mentioned steps 3) in, delivering concrete mix in the internal pipeline of above-mentioned inside pipe, concrete batching system is the compound with one or more mixs that add water in cement and rubble or sand or flyash.
In the construction method of above-mentioned concrete-pile, above-mentioned steps 4) in, the cross section of above-mentioned concrete pile body is special-shaped or circular or square, the shape of the cross section of its concrete pile body, being the quantity of support arm by extending out eyelid retractor and extend out the change of shape and realize adjusting, profiled cross-section includes gear shape or cross or polygon or multi-corner star-shape.
In the construction method of above-mentioned concrete-pile, above-mentioned steps 4) in, above-mentioned in ground, form the concrete-pile that is relatively large in diameter after one's death, anti-plug steel reinforcement cage in concrete pile body.
The constructing device of above-mentioned concrete-pile and the feature of construction method and advantage thereof are in that:
1. the fast efficiency of speed of application is high: first carry out the pile body pore-forming of minor diameter, major diameter pile body is formed after pile body is expanding, the conventional engineering methods such as the bored concrete pile comparing equal stake footpath, speed of application more than 40% can be improved, even if in the soil layer that sandy soils, boulder bed etc. are harder, it is also possible to rapidly and efficiently complete construction.
2. construction technology is simple and easy to control: only need to by controlling to extend out the angle of the outside diastole of the support arm of eyelid retractor, namely the size that adjustable pile body is expanding, only need to adjust the quantity controlling to extend out the support arm of eyelid retractor and extend out shape, pile body shape of cross section can be changed, also pile body week lateral area is just changed, to meet the upper load requirement of different geological conditions and version.
3. bearing capacity ofconcreting is significantly improved, remarkable in economical benefits: the cross section formed is the abnormity concrete pile bodies such as gear shape, cross, multi-corner star-shape, polygon, compared with the cast-in-place pile type long with equal stake footpath and stake, concrete makes consumption reduce by more than 25%, stake week, lateral area increased more than 20%, and comprehensive bearing capacity ofconcreting improves more than 25%.
4. construction quality is high, seriality is strong: whole formation of pile is soil compaction method, pile peripheral earth is all squeezed into bottom stake holes and on hole wall, plays and reinforces compacted effect, it is to avoid hole wall collapse and undergauge, and pore-forming, retaining wall, soil compaction whole operations expanding, pile once complete, the fast efficiency of speed is high.
5. applied widely: all applicable under the various geological conditions such as weak soil, hard formation, interlayer, water content height, all applicable in pile foundation construction and complex ground treatment.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of an embodiment of the construction method of the concrete-pile of the present invention；
Fig. 2 is the schematic diagram of another embodiment of the construction method of the concrete-pile of the present invention；
Fig. 3 is the schematic diagram of the concrete pile body that cross section is gear shape that the construction method of the concrete-pile of the present invention is formed；
Fig. 4 is the schematic diagram that cross section is criss-cross concrete pile body that the construction method of the concrete-pile of the present invention is formed；
Fig. 5 is the schematic diagram that cross section is polygonal concrete pile body that the construction method of the concrete-pile of the present invention is formed；
Fig. 6 is the schematic diagram of the concrete pile body that cross section is multi-corner star-shape that the construction method of the concrete-pile of the present invention is formed.
Detailed description of the invention
Fig. 1 is the schematic diagram of an embodiment of the construction method of the concrete-pile of the present invention, in Fig. 1 shown in a, the bottom of outer tube 1 and interior pipe 2 is with extending out eyelid retractor 3, extend out eyelid retractor 3 to be made up of telescopic support arm, extending out the lower end of eyelid retractor 3 with augers 4, augers 4 is provided with discharging opening 5；Then, in Fig. 1 shown in b, simultaneously spun outer tube 1 and interior pipe 2, under the drive of augers 4, make bottom with extending out the outer tube 1 of eyelid retractor 3 and interior pipe 2 simultaneously to being lowered into, until projected depth；Then, in Fig. 1 shown in c, while fixing outer tube 1, upwards pipe 2 in small elevation, make to extend out the outside diastole of eyelid retractor 3, extruding surrounding soil forms expanding stake holes；Then, in Fig. 1 shown in d, it is lifted up outer tube 1 and interior pipe 2 simultaneously, under the effect extending out eyelid retractor 3 extrusion soil, forms expanding stake holes, delivering concrete mix 6 in the internal pipeline of inside pipe 2 on one side, concrete batching system 6 injects expanding stake holes from the discharging opening 5 of interior pipe 2 bottom；Finally, in Fig. 1 shown in e, it is performed continuously over delivering concrete mix 6 and is lifted up outer tube 1 and interior 2 pipe operations, until outer tube 1 and interior pipe 2 are proposed foundation surface simultaneously, ground forming the concrete pile body being relatively large in diameter.
Fig. 2 is the schematic diagram of an embodiment of the construction method of the concrete-pile of the present invention, in Fig. 2 shown in a, the bottom of outer tube 1 and interior pipe 2, with extending out eyelid retractor 3, extends out eyelid retractor 3 and is made up of telescopic support arm, extends out the lower end closed of eyelid retractor and is provided with discharging opening 5；Then, in Fig. 2 shown in b, adopt weight or diesel hammer impact outer tube 1 and interior pipe 2, make bottom with extending out the outer tube 1 of eyelid retractor 3 and interior pipe 2 simultaneously to being lowered into, until projected depth；Then, in Fig. 2 shown in c, in fixing while pipe 2, slightly sinking to downwards outer tube 1, make to extend out the outside diastole of eyelid retractor 3, extruding surrounding soil forms expanding stake holes；Then, in Fig. 2 shown in d, it is lifted up outer tube 1 and interior pipe 2 simultaneously, under the effect extending out eyelid retractor 3 extrusion soil, forms expanding stake holes, delivering concrete mix 6 in the internal pipeline of inside pipe 2 on one side, concrete batching system 6 injects expanding stake holes from the discharging opening 5 of interior pipe 2 bottom；Finally, in Fig. 2 shown in e, it is performed continuously over delivering concrete mix 6 and is lifted up outer tube 1 and interior 2 pipe operations, until outer tube 1 and interior pipe 2 are proposed foundation surface simultaneously, ground forming the concrete pile body being relatively large in diameter.
Fig. 3 is the schematic diagram of the concrete pile body that cross section is gear shape that the construction method of the concrete-pile of the present invention is formed.
Fig. 4 is the schematic diagram that cross section is criss-cross concrete pile body that the construction method of the concrete-pile of the present invention is formed.
Fig. 5 is the schematic diagram that cross section is polygonal concrete pile body that the construction method of the concrete-pile of the present invention is formed.
Fig. 6 is the schematic diagram of the concrete pile body that cross section is multi-corner star-shape that the construction method of the concrete-pile of the present invention is formed.
Claims (9)
1. a construction method for concrete-pile, comprises the steps:
1) by bottom with extending out the outer tube of eyelid retractor and interior pipe simultaneously to being lowered into, until projected depth；
2) extending out the outside diastole of eyelid retractor, extruding surrounding soil forms expanding stake holes；
3) being lifted up outer tube and interior pipe on one side, inwardly delivering concrete mix in the internal pipeline of pipe, concrete batching system injects expanding stake holes from the discharging opening of interior pipe bottom simultaneously；
4) be performed continuously over above-mentioned steps 3) delivering concrete mix and be lifted up outer tube and interior pipe operation, until outer tube and interior pipe are proposed foundation surface simultaneously, forming the concrete pile body being relatively large in diameter in ground, the cross section of concrete pile body is special-shaped or circular or square；
The above-mentioned eyelid retractor that extends out is to be made up of the telescopic support arm of 2～10 umbrella frame shapes, support arm is connected by pivot pin by upper arm and underarm, upper arm upper end is connected with outer tube bottom by pivot pin, underarm lower end is connected with interior pipe bottom by pivot pin, to when being lowered into outer tube and interior pipe, the support arm extending out eyelid retractor inwardly closes up, and when being lifted up outer tube and interior pipe, extends out the outside diastole of support arm of eyelid retractor.
2. the construction method of concrete-pile according to claim 1, it is characterised in that above-mentioned steps 1) in, adopt bottom to replace above-mentioned bottom with extending out the outer tube of eyelid retractor and interior pipe with the hollow pipe of multiple hydraulic pressure support arms or a support plate.
3. the construction method of concrete-pile according to claim 1, it is characterized in that above-mentioned steps 1) in, the above-mentioned lower end extending out eyelid retractor is provided with drill bit or impacts cone, and drill bit or impact cone are provided with discharging opening, and discharging opening is connected with the internal pipeline of interior pipe.
4. the construction method of concrete-pile according to claim 1, it is characterized in that above-mentioned steps 1) in, above-mentioned by outer tube and interior pipe simultaneously to the mode being lowered into, be that the method for one or several combinations by rotary drilling or hammering or static pressure or vibration realizes.
5. the construction method of concrete-pile according to claim 1, it is characterized in that above-mentioned steps 2) in, above-mentioned will extend out the outside diastole of eyelid retractor, extruding surrounding soil forms expanding stake holes, it extends out the mode of the outside diastole of eyelid retractor, including the upper and lower displacement by controlling outer tube and interior pipe, namely fix in outer tube lifts up interior pipe or be fixing and press outer tube under pipe, also include by being arranged at the hydraulic means on outer tube or interior pipe, the outside arcuately diastole of the support arm extending out eyelid retractor is made to open, thus extruding surrounding soil to form expanding stake holes.
6. the construction method of concrete-pile according to claim 1, it is characterized in that above-mentioned steps 3) in, the above-mentioned mode being simultaneously lifted up outer tube and interior pipe, be after the oil thread rope stretched out by hoist engine passes around assembly pulley on pull out or top or to realize in the way of one or several combinations of pulling out in vibration on hydraulic top.
7. the construction method of concrete-pile according to claim 1, it is characterized in that above-mentioned steps 3) in, delivering concrete mix in the internal pipeline of above-mentioned inside pipe, concrete batching system is the compound with one or more mixs that add water in cement and rubble or sand or flyash.
8. the construction method of concrete-pile according to claim 1, it is characterized in that above-mentioned steps 4) in, the cross section of above-mentioned concrete pile body is special-shaped or circular or square, the shape of the cross section of its concrete pile body, being the quantity of support arm by extending out eyelid retractor and extend out the change of shape and realize adjusting, profiled cross-section includes gear shape or cross or polygon or multi-corner star-shape.
9. the construction method of concrete-pile according to claim 1, it is characterised in that above-mentioned steps 4) in, above-mentioned in ground, form the concrete-pile that is relatively large in diameter after one's death, anti-plug steel reinforcement cage in concrete pile body.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410721600.7A CN104594339B (en) | 2014-12-03 | 2014-12-03 | The construction method of concrete-pile |
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| CN201410721600.7A CN104594339B (en) | 2014-12-03 | 2014-12-03 | The construction method of concrete-pile |
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| CN104594339A CN104594339A (en) | 2015-05-06 |
| CN104594339B true CN104594339B (en) | 2016-06-29 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104988910B (en) * | 2015-06-24 | 2017-08-22 | 南京路鼎搅拌桩特种技术有限公司 | Reducing rotating spraying mixture pile |
| CN106988304B (en) * | 2017-05-18 | 2019-03-12 | 华北理工大学 | Novel steel tube concrete connecting device and its construction method |
| CN112482369B (en) * | 2020-11-24 | 2022-01-28 | 河海大学 | Static pressure type back support screw pile based on bionics and construction method thereof |
| CN114541361B (en) * | 2022-04-02 | 2024-09-06 | 山东高速工程建设集团有限公司 | Bidirectional stirring device and composite foundation construction method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2381669Y (en) * | 1999-07-19 | 2000-06-07 | 黄运飞 | Boring bit for vibrating, jetting, extruding and boring sectional bored concrete piles |
| CN1441146A (en) * | 2003-03-24 | 2003-09-10 | 周书魁 | Integral pile hole drilling and expanding apparatus |
| CN1704533A (en) * | 2004-05-28 | 2005-12-07 | 刘润郊 | Enlarging in hole and pile forming method by boring and pumping big flow concrete, and pile hole enlarging device |
| CN1800509A (en) * | 2005-01-05 | 2006-07-12 | 北京中阔科技有限责任公司 | Device for knobby pushing and expanding spiral immersed tube stake and its engineering method |
| CN201172817Y (en) * | 2008-04-03 | 2008-12-31 | 祁春伟 | Construction equipment of screw-enlarging support disk filling pile |
| CN202031082U (en) * | 2011-04-12 | 2011-11-09 | 中国建筑第七工程局有限公司 | Branch disk pile expanding tool |
| CN202055239U (en) * | 2011-04-12 | 2011-11-30 | 中国建筑第七工程局有限公司 | Extruding-expanding rotary cutting device for branch plate pile |
| CN102561326A (en) * | 2012-03-19 | 2012-07-11 | 董兰田 | Three-branch single-cylinder hydraulic bidirectional expansion-extrusion device |
-
2014
- 2014-12-03 CN CN201410721600.7A patent/CN104594339B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2381669Y (en) * | 1999-07-19 | 2000-06-07 | 黄运飞 | Boring bit for vibrating, jetting, extruding and boring sectional bored concrete piles |
| CN1441146A (en) * | 2003-03-24 | 2003-09-10 | 周书魁 | Integral pile hole drilling and expanding apparatus |
| CN1704533A (en) * | 2004-05-28 | 2005-12-07 | 刘润郊 | Enlarging in hole and pile forming method by boring and pumping big flow concrete, and pile hole enlarging device |
| CN1800509A (en) * | 2005-01-05 | 2006-07-12 | 北京中阔科技有限责任公司 | Device for knobby pushing and expanding spiral immersed tube stake and its engineering method |
| CN201172817Y (en) * | 2008-04-03 | 2008-12-31 | 祁春伟 | Construction equipment of screw-enlarging support disk filling pile |
| CN202031082U (en) * | 2011-04-12 | 2011-11-09 | 中国建筑第七工程局有限公司 | Branch disk pile expanding tool |
| CN202055239U (en) * | 2011-04-12 | 2011-11-30 | 中国建筑第七工程局有限公司 | Extruding-expanding rotary cutting device for branch plate pile |
| CN102561326A (en) * | 2012-03-19 | 2012-07-11 | 董兰田 | Three-branch single-cylinder hydraulic bidirectional expansion-extrusion device |
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| CN104594339A (en) | 2015-05-06 |
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Effective date of registration: 20170906 Address after: 102218, Beijing, Changping District East small town Taiping homes, building 31 Patentee after: BEIJING PUISSANT GEOTECHNICAL ENGINEERING CO., LTD. Address before: 102218 Beijing city Changping District East Town Taiping home building No. 31 Beijing possente Geotechnical Engineering Co. Ltd. Patentee before: Wang Jizhong |
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