CN102383419A - Special reinforced tubular pile and processing method thereof - Google Patents
Special reinforced tubular pile and processing method thereof Download PDFInfo
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- CN102383419A CN102383419A CN2011102356676A CN201110235667A CN102383419A CN 102383419 A CN102383419 A CN 102383419A CN 2011102356676 A CN2011102356676 A CN 2011102356676A CN 201110235667 A CN201110235667 A CN 201110235667A CN 102383419 A CN102383419 A CN 102383419A
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Abstract
The invention discloses a special reinforced tubular pile, which at least comprises a pile body, wherein reinforced friction blocks are respectively arranged on the outer surface at each side of the pile body. The invention also discloses a processing method of the special reinforced tubular pile. The special reinforced tubular pile adopts the structural design of the reinforced friction blocks, so that outer surface shape of the tubular pile is improved, a friction coefficient of the outer surface is increased and the pile side friction force of the tubular pile is improved. Meanwhile, by adopting the structural design of the reinforced friction blocks, the end area of the tubular pile is increased and the pile end bearing capacity of the tubular pile is improved. Therefore, the special reinforced tubular pile disclosed by the invention has the advantages of a round pipe and a square pile, overcomes the respective inherent defects of the round pile and the square pile simultaneously as well as has higher pressure-resistant friction force, higher shear-resistant performance, higher pullout-resistant capability and remarkable progress and beneficial effects.
Description
Technical field
The present invention relates to the pile foundation technology field, relate in particular to a kind of special-shaped reinforced pile tube that is used as the building foundation.The invention still further relates to the processing method of this kind pile tube.
Background technology
For the construction of a building high building, its structural safety depends on basic engineering to a great extent, and basic engineering then is according to the geological mapping parameter, carries out according to design specifications.Build various buildings particularly high-rise building, heavy factory building and when having the structure of specific (special) requirements in the bad area of soil property, pile foundation technology has become a kind of base form of extensive employing.Pile foundation technology mainly is plant equipment such as employing static pile press, and many prefabricated pile tubes are squeezed into the technology that is used as the building foundation in the stratum according to layout.
Wherein, the bearing capacity of prefabricated concrete pile tube of the prior art mainly is made up of two parts.A part is the frictional force that forms between a side soil layer, is also referred to as a side-friction force.Another part is the bearing capacity of pile tip that the pile crown seat crouches and forms on the bearing stratum in the stratum.The size of stake side-friction force is main relevant with the moisture content of soil property, and when underground SEA LEVEL VARIATION is big, thereby the side friction factor has the size that bigger change directly has influence on a side-friction force.And the size of bearing capacity of pile tip is main and pile crown whether to get into bearing stratum as requested relevant; When pile crown gets into the good bearing stratum of geological conditions; Bearing capacity of pile tip is basicly stable, on pile crown is arranged in bearing stratum or under the unfavorable geology layer time, bearing capacity of pile tip is extremely unstable.Therefore, in the basic engineering of building, generally all do one's utmost to avoid unsettled unfavorable geology layer.More satisfactory basic engineering is to make pile tube that certain degree of depth arranged in ground, to obtain the stake side-friction force of designing requirement, also must make pile crown get into bearing stratum, to obtain the bearing capacity of pile tip of designing requirement.
But in practice of construction, the addressing of building is at first considered is ground factor but not underground factor.Therefore, building is selected on the complicated basis of some earth formations possibly.In the prior art, for reaching the stake side-friction force of design, generally the projected depth to pile tube has certain requirement, and promptly pile tube must be squeezed into certain depth under the face of land so that produce enough side-friction forces between pile tube side and the soil layer.Simultaneously, for obtaining the bearing capacity of pile tip of designing requirement, pile tube also must be beaten on the bearing stratum of good geological conditions.But problem is that the earth formation under the face of land is very complicated, under a lot of situation, is positioned at the geological stratification at projected depth place under the face of land and is not suitable for doing bearing stratum.
Common pipe stake, owing to have columniform external surface, its advantage is that a side friction factor is high, the stake side-friction force is big.But its shortcoming is that anti-shear ability is poor.And the end area of circle stake is little, and bearing capacity of pile tip is little.
Common square pipe pile, owing to have the external surface of square, its advantage is that anti-shear ability is good.And under the situation of same diameter, the end area of side's stake is big, and bearing capacity of pile tip is big.But its shortcoming is, stake side friction factor is little, and the stake side friction of side's stake mainly concentrates on Si Jiaochu, and a therefore whole side-friction force is little.
In this case; Existing pile foundation technology must adopt the supplementary technology means; Unfavorable geology layer under the face of land is done a technical finesse satisfy the requirement that becomes bearing stratum, or increase the quantity of foundation pile, otherwise just can't satisfy bearing capacity and shear-stable designing requirement simultaneously.
Therefore, those skilled in the art is devoted to improve existing pile tube always, to overcome the above-mentioned defective of prior art.
Summary of the invention
Because the above-mentioned defective of prior art, technical problem to be solved by this invention provides that a kind of side-friction force is big, stake end support force is big, anti-shear performance and special-shaped reinforced pile tube easy to manufacture, simple in structure.
For realizing above-mentioned purpose, the invention provides the reinforced pile tube of a kind of abnormity, comprise pile body at least; The external surface on each limit of said pile body is provided with the reinforcement brake pad.
Preferably, said pile body is prefabricated concrete spare, and its inside has reinforcing cage.
Preferably, the two ends of said pile body are fixedly connected with the connector structure respectively.
Preferably, said connector structure is a steel construction piece.
Preferably, offer reinforcement installation hole and tension screw on the said connector structure.
Preferably, said reinforcement installation hole, said tension screw are the axial symmetry setting.
Preferably, the said pile body side of being prismatic, square circular or quincunx.
Preferably, be provided with cylindrical hole in the said pile body.
Preferably, said pile body external surface brake pad is square shape, diamond shaped, triangular shape, toroidal, strip, different form.
The reinforced pile tube of abnormity of the present invention has improved the external surface shape of pile tube owing to the structure design of above-mentioned reinforcement brake pad, has increased the friction factor of external surface, has improved the stake side-friction force of pile tube.Simultaneously, the present invention has increased the end area of pile tube also owing to the structure design of above-mentioned reinforcement brake pad, has improved the bearing capacity of pile tip of pile tube.Therefore; The reinforced pile tube of abnormity of the present invention has the advantage of circle stake and side's stake concurrently; Overcome simultaneously round stake and the intrinsic separately shortcoming of side's stake again, had higher resistance to compression frictional force, higher shear behavior and higher resistance to plucking ability, had obvious improvement and beneficial effect.
The present invention also provides the processing method of the reinforced pile tube of a kind of abnormity, comprising: step 1, and the cage of wire-tiing, and the said reinforcing cage that will tie is put into special-shaped reinforced pipe pile die; Step 2 is provided with the connector structure respectively at the two ends of the reinforced pipe pile die of said abnormity, and utilizes the axial ribs in the said reinforcing cage of said connector structure stretch-draw; Step 3, concreting in the reinforced pipe pile die of said abnormity, matched moulds forms an intermediate; Step 4 is rotated the said intermediate that step 3 obtains at a high speed, utilizes the concrete in the reinforced pipe pile die of the closely knit said abnormity of centrifugal force, and forms cylindrical hole at axis part, forms semiproduct; Step 5 utilizes high-temperature steam to steam the semiproduct that step 4 obtains, and die sinking cooling then obtains the reinforced pile tube of said abnormity.
Preferably, in the said step 2, the said axial ribs after utilizing said connector structure to stretch-draw applies certain prestressing force.
Processing method of the present invention, technology is simple, and efficient is high, as long as change the production requirement that different moulds can adapt to the pile tube of different shape, the constant product quality that processing obtains.
Below will combine accompanying drawing that the technique effect of design of the present invention, concrete structure and generation is described further, to understand the object of the invention, characteristic and effect fully.
Description of drawings
Fig. 1 is the structural representation of reinforced pile tube one specific embodiment of abnormity of the present invention.
Fig. 2 is the structural representation of the another specific embodiment of the reinforced pile tube of abnormity of the present invention.
Fig. 3 is the structural representation of reinforced another specific embodiment of pile tube of abnormity of the present invention.
The specific embodiment
As shown in Figure 1, among the embodiment of the reinforced pile tube 1 of abnormity of the present invention, comprise pile body 11, pile body 11 is the prefabricated concrete spare of side's prismatic, comprises a plurality of corner angle 12, set inside has the reinforcing cage (not shown).
The external surface on pile body 11 each limit is provided with strengthens brake pad 14 (only showing a part among Fig. 1), therefore on the external surface on its four limit, is provided with four altogether and strengthens brake pad 14, has increased the stake side-friction force of pile tube.
The present invention also strengthens brake pad 42 owing to be provided with above-mentioned four, has increased the bearing capacity of pile tip of pile tube.
Further, be fixedly connected with connector structure 13 respectively at the two ends of pile body 11.Connector structure 13 is a steel construction piece, and compartment of terrain offers four reinforcement installation holes 132 and four tension screws 131 on it.
For stressed even, reinforcement installation hole 132, tension screw 131 are provided with at interval, and are the axial symmetry setting.
In different specific embodiments, different according to the bore of pile tube, the quantity of reinforcement installation hole 132, tension screw 131 can be four, six, eight, ten, 12 even more.
The center of the reinforced pile tube 1 of abnormity has a cylindrical hole 10, to alleviate the weight of special-shaped reinforced pile tube 1, has also reduced cost.
Owing to be provided with a plurality of reinforcement brake pads 14, increased the friction factor of the external surface of pile body 11, the side stressing conditions of the reinforced pile tube 1 of abnormity of the present invention improves.Simultaneously, a plurality of reinforcement brake pads 14 have also increased the end area of special-shaped reinforced pile tube 1, have improved bearing capacity of pile tip.
Compare with existing square pile tube or circular pile tube; Under the condition of equal bore; Squeeze at pile tube under the situation of same geological conditions, the same degree of depth; The reinforced pile tube of abnormity of the present invention has better supporting efficiency, has beneficial effects such as resistance to compression frictional force is big, shear behavior good, the resistance to plucking ability is strong.
As shown in Figure 2, among the another embodiment of the reinforced pile tube 1 of abnormity of the present invention, present embodiment and the foregoing description are basic identical, and institute's difference is that pile body 11 is the prefabricated concrete spare of a square circular, comprises a plurality of semicircle cambered surfaces 12.The external surface on pile body 11 each limit is provided with strengthens brake pad 14 (only showing a part in 21).
As shown in Figure 3, among the embodiment again of the reinforced pile tube 1 of abnormity of the present invention, present embodiment and the foregoing description are basic identical, and institute's difference is that pile body 11 is a quincuncial prefabricated concrete spare, is made up of six semi arches 12.The external surface on pile body 11 each limit is provided with strengthens brake pad 14 (only showing a part among Fig. 3).
The present invention also provides the processing method of the reinforced pile tube of a kind of abnormity, comprising:
Step 2 is provided with the connector structure respectively at the two ends of the reinforced pipe pile die of abnormity, and utilizes the axial ribs in the connector structure tension reinforcing steel bar cage.
Further, the axial ribs after can also utilizing the connector structure to stretch-draw applies certain prestressing force, to improve the compressive property of pile tube.
Step 3, concreting in the reinforced pipe pile die of abnormity, matched moulds forms an intermediate;
Step 4 is rotated the intermediate that step 3 obtains at a high speed, utilizes the concrete in the reinforced pipe pile die of the closely knit abnormity of centrifugal force, and forms cylindrical hole at axis part, forms semiproduct.
Step 5 utilizes high-temperature steam to steam the semiproduct that step 4 obtains, and die sinking cooling then obtains special-shaped reinforced pile tube.
Processing method of the present invention, technology is simple, and efficient is high, as long as change the production requirement that different moulds can adapt to the pile tube of different shape, the constant product quality that processing obtains.
The reinforced pile tube of above-mentioned various abnormity of the present invention during fabrication need only be according to the shape needs of external surface, and the mould that design is complementary gets final product, and it is simple to have processing technology, and cost is low, beneficial effects such as steady quality.
In sum, described in this manual is several kinds of preferred embodiment of the present invention, and above embodiment is only unrestricted in order to technical scheme of the present invention to be described.All technician in the art all should be within claim protection domain of the present invention under this invention's idea on the basis of existing technology through the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (10)
1. the reinforced pile tube of abnormity comprises pile body at least; It is characterized in that: the external surface on each limit of said pile body is provided with the reinforcement brake pad.
2. the reinforced pile tube of abnormity as claimed in claim 1 is characterized in that: said pile body is prefabricated concrete spare, and its inside has reinforcing cage.
3. the reinforced pile tube of abnormity as claimed in claim 1, it is characterized in that: the two ends of said pile body are fixedly connected with the connector structure respectively.
4. the reinforced pile tube of abnormity as claimed in claim 3 is characterized in that: said connector structure is a steel construction piece.
5. the reinforced pile tube of abnormity as claimed in claim 3 is characterized in that: offer reinforcement installation hole and tension screw on the said connector structure.
6. the reinforced pile tube of abnormity as claimed in claim 4 is characterized in that: said reinforcement installation hole, said tension screw are the axial symmetry setting.
7. like the reinforced pile tube of the arbitrary described abnormity of claim 1 to 6, it is characterized in that: the said pile body side of being prismatic, square circular or quincunx.
8. like the reinforced pile tube of the arbitrary described abnormity of claim 1 to 6, it is characterized in that: be provided with cylindrical hole in the said pile body.
9. like the reinforced pile tube of the arbitrary described abnormity of claim 1 to 6, it is characterized in that: said pile body external surface brake pad is square shape, diamond shaped, triangular shape, toroidal, strip, different form.
10. the processing method of the reinforced pile tube of the described abnormity of above-mentioned arbitrary claim may further comprise the steps:
Step 1, the cage of wire-tiing, and the said reinforcing cage that will tie is put into special-shaped reinforced pipe pile die;
Step 2 is provided with the connector structure respectively at the two ends of the reinforced pipe pile die of said abnormity, and utilizes the axial ribs in the said reinforcing cage of said connector structure stretch-draw;
Step 3, concreting in the reinforced pipe pile die of said abnormity, matched moulds forms an intermediate;
Step 4 is rotated the said intermediate that step 3 obtains at a high speed, utilizes the concrete in the reinforced pipe pile die of the closely knit said abnormity of centrifugal force, and forms cylindrical hole at axis part, forms semiproduct;
Step 5 utilizes high-temperature steam to steam the semiproduct that step 4 obtains, and die sinking cooling then obtains the reinforced pile tube of said abnormity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102356676A CN102383419A (en) | 2011-08-17 | 2011-08-17 | Special reinforced tubular pile and processing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011102356676A CN102383419A (en) | 2011-08-17 | 2011-08-17 | Special reinforced tubular pile and processing method thereof |
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| CN102383419A true CN102383419A (en) | 2012-03-21 |
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| CN2011102356676A Pending CN102383419A (en) | 2011-08-17 | 2011-08-17 | Special reinforced tubular pile and processing method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102995630A (en) * | 2012-12-17 | 2013-03-27 | 上海中技桩业股份有限公司 | Method for preparing asymmetrical reinforcing bar prefabricated pile |
| CN105507236A (en) * | 2015-11-25 | 2016-04-20 | 上海强劲地基工程股份有限公司 | Precast pile for increasing frictional resistance |
| CN106759276A (en) * | 2017-03-08 | 2017-05-31 | 威海齐德新型建材有限公司 | A kind of many rib prefabricated foundation stakes |
| CN107322757A (en) * | 2017-08-30 | 2017-11-07 | 中冶沈勘工程技术有限公司 | The making mould and preparation method of a kind of special-shaped root pile of prefabricated grouting behind shaft or drift lining |
| JP2020183630A (en) * | 2019-05-01 | 2020-11-12 | 株式会社中島機械 | Rotary pile |
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| JP2001090061A (en) * | 1999-09-27 | 2001-04-03 | Toyo Asano Found Co Ltd | Friction-increasing steel pipe pile |
| CN201693669U (en) * | 2010-07-01 | 2011-01-05 | 江苏建华管桩有限公司 | Pretensioning prestressed concrete polygonal pile |
| CN102031776A (en) * | 2010-12-30 | 2011-04-27 | 上海市城市建设设计研究院 | Steel pipe pile |
| CN102080375A (en) * | 2011-02-14 | 2011-06-01 | 杨红旵 | Novel pre-stressed concrete pipe pile |
| CN201908299U (en) * | 2010-12-30 | 2011-07-27 | 天津市银龙预应力钢材集团有限公司 | Concrete pipe pile with high bearing capacity |
| CN202227335U (en) * | 2011-08-17 | 2012-05-23 | 上海奥米制药装备有限公司 | Special-shaped reinforced tubular pile |
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2011
- 2011-08-17 CN CN2011102356676A patent/CN102383419A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001090061A (en) * | 1999-09-27 | 2001-04-03 | Toyo Asano Found Co Ltd | Friction-increasing steel pipe pile |
| CN201693669U (en) * | 2010-07-01 | 2011-01-05 | 江苏建华管桩有限公司 | Pretensioning prestressed concrete polygonal pile |
| CN102031776A (en) * | 2010-12-30 | 2011-04-27 | 上海市城市建设设计研究院 | Steel pipe pile |
| CN201908299U (en) * | 2010-12-30 | 2011-07-27 | 天津市银龙预应力钢材集团有限公司 | Concrete pipe pile with high bearing capacity |
| CN102080375A (en) * | 2011-02-14 | 2011-06-01 | 杨红旵 | Novel pre-stressed concrete pipe pile |
| CN202227335U (en) * | 2011-08-17 | 2012-05-23 | 上海奥米制药装备有限公司 | Special-shaped reinforced tubular pile |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102995630A (en) * | 2012-12-17 | 2013-03-27 | 上海中技桩业股份有限公司 | Method for preparing asymmetrical reinforcing bar prefabricated pile |
| CN105507236A (en) * | 2015-11-25 | 2016-04-20 | 上海强劲地基工程股份有限公司 | Precast pile for increasing frictional resistance |
| CN106759276A (en) * | 2017-03-08 | 2017-05-31 | 威海齐德新型建材有限公司 | A kind of many rib prefabricated foundation stakes |
| CN107322757A (en) * | 2017-08-30 | 2017-11-07 | 中冶沈勘工程技术有限公司 | The making mould and preparation method of a kind of special-shaped root pile of prefabricated grouting behind shaft or drift lining |
| CN107322757B (en) * | 2017-08-30 | 2022-08-02 | 中冶沈勘工程技术有限公司 | Manufacturing die and manufacturing method of prefabricated grouting special-shaped root pile |
| JP2020183630A (en) * | 2019-05-01 | 2020-11-12 | 株式会社中島機械 | Rotary pile |
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Application publication date: 20120321 |