CN102212993B - Pre-stressed reinforced concrete circular hollow pile with internal thread or internal groove and processing method thereof - Google Patents
Pre-stressed reinforced concrete circular hollow pile with internal thread or internal groove and processing method thereof Download PDFInfo
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- CN102212993B CN102212993B CN 201010170647 CN201010170647A CN102212993B CN 102212993 B CN102212993 B CN 102212993B CN 201010170647 CN201010170647 CN 201010170647 CN 201010170647 A CN201010170647 A CN 201010170647A CN 102212993 B CN102212993 B CN 102212993B
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Abstract
The invention relates to a pre-stressed reinforced concrete circular hollow pile, which comprises a circular pile body and circular metal end plates, wherein the circular pile body comprises a steel reinforcement cage and concrete, a through central circular hole is arranged on the circular pile body in the axial direction, the circular metal end plates are arranged at two ends of the circular pile body and correspond to the central circular hole on the circular pile body, and the circular metal end plates are also provided with central circular holes; and an internal thread structure, or an internal groove structure, or a tooth-shaped protuberance, or a plurality of pits, or a plurality of convex blocks is/are arranged on the inner wall of the central circular hole of the circular pile body, and the reinforced concrete of a lower extension part of a supporting platform has strong binding force with the central circular hole of the pre-stressed reinforced concrete circular hollow pile, thereby effectively solving the problem that the reinforced concrete of the lower extension part of the supporting platform slips off the central circular hole, really preventing the collapse risk due to shaking or swing of a building on the supporting platform under the action of external force, and achieving good safety. The circular pile body is processed according to the conventional method, the internal thread structure or the internal groove structure on the inner wall is processed in a cutting way or an extrusion way, the processing technology is simple, the cost is low, and the efficiency is high.
Description
Technical field:
The present invention relates to concrete pile and processing method thereof, particularly prestress reinforced concrete circular hollow pile and processing method thereof.
Background technology:
Existing prestress reinforced concrete circular hollow pile, comprise circular pile body and circular metal end plate, circular pile body contains reinforcing cage, concrete, the center hole that a perforation is axially arranged of circular pile body, the circular metal end plate is arranged on the two ends of circular pile body, and is corresponding with the center hole on the circular pile body, also is provided with center hole on the circular metal end plate, the periphery of circular metal end plate is provided with bevel for welding, is provided with anchor hole on the circular metal end plate symmetrically; Reinforcing cage comprises main muscle and stirrup, and stirrup shape in the shape of a spiral is welded on the main muscle.When this prestressed reinforced concrete open circles stake is used, the top concrete bearing platform is built in the process and is also built steel concrete in circle pile center circular hole, form the downward part of concrete cushion cap, concrete bearing platform is realized with the combination of the center hole of the concrete that being connected of prestressed reinforced concrete open circles stake just leans on the downward part of cushion cap and the stake of prestressed reinforced concrete open circles, because the bound fraction of the concrete of the downward part of cushion cap and the center hole of prestressed reinforced concrete open circles stake is the smooth face of cylinder, both adhesions are not strong, building on the cushion cap is under the external force effect that wind load or differential settlement etc. causes, the concrete that may produce the downward part of cushion cap is extracted from the center hole of prestressed reinforced concrete open circles stake, the danger that building on the cushion cap just might take place to cover, poor stability.The processing method of existing prestress reinforced concrete circular hollow pile may further comprise the steps: the preparation reinforcing cage; The preparation high performance concrete; Prepare mould, and on mould separant coating; Be installed in reinforcing cage on the mould and tighten tensioning equipment; Feed in the punching block high performance concrete for preparing and the half module that closes; Bending resistance grade by product is carried out pre-stretch-draw to reinforcing bar, locks anchoring after reaching requirement; Put into and carry out centrifugal treating on the centrifuge, pour out surplus slurry; Adopt the demoulding after common steam maintenance moulding or the steam curing at high pressure moulding by the different strength grade requirement of concrete; Finished product is stacked and nature or water curing some cycles on request.
Summary of the invention:
The objective of the invention is to overcome the deficiencies in the prior art, a kind of prestress reinforced concrete circular hollow pile and processing method thereof that steel concrete is combined with prestress reinforced concrete circular hollow pile firmly, safety is good that can make the downward part of cushion cap is provided.
Solution of the present invention: band internal thread prestress reinforced concrete circular hollow pile, comprise circular pile body and circular metal end plate, circular pile body contains reinforcing cage, concrete, the center hole that a perforation is axially arranged of circular pile body, the circular metal end plate is arranged on the two ends of circular pile body, corresponding with the center hole on the circular pile body, also be provided with center hole on the circular metal end plate; Four arms of angle of circular pile body and circular metal end plate are the circular arc arm of angle that radius equates, are convenient to the hollow circular stake of prestressed reinforced concrete in the demoulding from its processing mold successfully of process king-pile physical efficiency, can guarantee not damage simultaneously the arm of angle of pile body; On the inwall of the center hole of circular pile body female thread structure is arranged, make the adhesion of center hole of the steel concrete of the downward part of cushion cap and prestress reinforced concrete circular hollow pile strong, building on the cushion cap is under the external force effect that wind load or differential settlement etc. causes, the not danger that can take place to cover, safety is good.
Female thread structure on the inwall of the center hole of circular pile body is distributed in an end of the center hole of circular pile body, and its axial length is the 500-2500 millimeter.
Prestress reinforced concrete circular hollow pile, comprise circular pile body and circular metal end plate, circular pile body contains reinforcing cage, concrete, the center hole that a perforation is axially arranged of circular pile body, the circular metal end plate is arranged on the two ends of circular pile body, corresponding with the center hole on the circular pile body, also be provided with center hole on the circular metal end plate; On the inwall of the center hole of circular pile body female thread structure or inner trough structure or detent projection thing or some pits or some projections are arranged, make the adhesion of center hole of the steel concrete of the downward part of cushion cap and prestress reinforced concrete circular hollow pile strong, building on the cushion cap is under the external force effect that wind load or differential settlement etc. causes, the not danger that can take place to cover, safety is good.
The tooth depth of internal thread is the 10-30 millimeter.
Inside groove is some inner grooves of separate setting, or is the inside spin annular groove.
The degree of depth of the cell body of inside groove or inside spin annular groove is the 10-30 millimeter.
Inner groove is set to be parallel to each other, or intersects mutually.
Angle between the center line of the center hole on the symmetrical section of inner groove and the circular pile body is 20--90 °.
The shape of cross section of inner groove is rectangle or trapezoidal or triangle or circular arc or the trough rim that is made of inner groove some planes, cambered surface.
Angle between two trough rims of the cross section of trapezoidal inner groove is 5--120 °.
The last base of the cross section of trapezoidal inner groove and the length between the bottom are than being 0.1-0.95.
Advantage of the present invention is: after using the present invention, the steel concrete of the downward part of cushion cap and the adhesion of center hole of the present invention are strong, solved the problem of steel concrete slippage from center hole of the present invention of the downward part of cushion cap effectively, conscientiously the danger covered takes place to have prevented that building on the cushion cap from rocking under external force or swinging, and safety is good.
The cutting working method of the prestress reinforced concrete circular hollow pile of band internal thread or inner trough structure, circular pile body is by existing conventional method processing, after circular pile body is through the centrifuge processing and forming, carry out the internal thread of circular pile body or the processing of inner trough structure before entering concrete initial set, comprising the steps: that circular pile body is driven by centrifuge does gyration, the circular relatively pile body of processing knife bar does axially and radial motion enters processing stations, adjust allowance, the processing knife bar is done the axial feed cutting along circular pile body, after the processing knife bar is finished cutting, the processing knife bar is radially withdrawing from along circular pile body earlier, along axially the withdrawing from of circular pile body, the concrete chip that cutting produces enters debris collection device and reclaims again.
The extrusion modling processing method of the prestress reinforced concrete circular hollow pile of band internal thread or inner trough structure, circular pile body is by existing conventional method processing, after circular pile body is through the centrifuge processing and forming, carry out the internal thread of circular pile body or the processing of inner trough structure before entering concrete initial set, comprising the steps: that circular pile body is driven by centrifuge does gyration, installed that the circular relatively pile body of processing knife bar that some moulding roll is done axially and radial motion enters processing stations, according to allowance, the processing knife bar is made radial feed along circular pile body, inner surface to the center hole of circular pile body carries out squeeze job, after the processing knife bar is finished squeeze job, processing knife bar elder generation radially withdraws from along circular pile body, again axially withdrawing from along circular pile body.
Advantage of the present invention is: processing technology is simple, cost is low, efficient is high.
Description of drawings:
Fig. 1 is the structural representation of the embodiment of the invention 1;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the embodiment of the invention 1 and cushion cap syndeton schematic diagram;
Fig. 4 is the structural representation of the embodiment of the invention 2;
Fig. 5 is the structural representation of the rectangle inner groove 20 of the embodiment of the invention 2;
Fig. 6 is the structural representation of the trapezoidal inner groove 21 of the embodiment of the invention 2;
Fig. 7 is the structural representation of the triangle inner groove 22 of the embodiment of the invention 2;
Fig. 8 is the structural representation of the circular arc inner groove 23 of the embodiment of the invention 2;
Fig. 9 is the structural representation that the broken line of the embodiment of the invention 2 constitutes the inner groove 16 of trough rim;
Figure 10 is the straight line of the embodiment of the invention 2 and the structural representation that circular arc line constitutes the inner groove 14 of trough rim;
Figure 11 is the I portion enlarged drawing of Fig. 4;
Figure 12 is the embodiment of the invention 2 and cushion cap syndeton schematic diagram;
Figure 13 is the structural representation of the embodiment of the invention 3;
Figure 14 is the structural representation of the embodiment of the invention 4;
Figure 15 is the structural representation of the embodiment of the invention 5;
Figure 16 is the structural representation of the embodiment of the invention 6.
Among the figure: 1-pile body center hole; 2-metal end plate center hole; The 3-screw thread; 4-circular metal end plate; The 5-reinforcing cage; The 6-concrete; The circular pile body of 7-; 8-holds in the palm basket; The downward part of 9-cushion cap; 10-cushion cap reinforcing cage; The 11-cushion cap; The 12-inner groove; 13-ring-type projection; 14-straight line and circular arc line constitute the inner groove of trough rim; 15-inside spin annular groove; The 16-broken line constitutes the inner groove of trough rim; 17-intersection inside spin annular groove; The 18-pit; The 19-projection; 20-rectangle inner groove; The trapezoidal inner groove of 21-; 22-triangle inner groove; 23-circular arc inner groove.
The specific embodiment:
Among Fig. 1, be included as circular pile body 7 and circular metal end plate 4, circular pile body 7 contains reinforcing cage 5, concrete 6, the pile body center hole 1 that a perforation is axially arranged of circular pile body 7, circular metal end plate 4 is arranged on the two ends of circular pile body 7, and is corresponding with the pile body center hole 1 on the circular pile body 7, also is provided with metal end plate center hole 2 on the circular metal end plate 4, the periphery of circular metal end plate 4 is provided with bevel for welding, is provided with anchor hole on the circular metal end plate 4 symmetrically; The inwall of the pile body center hole 1 of one end of circular pile body 7 is provided with screw thread 3, the axial length of screw thread 3 is 1000 millimeters, the degree of depth of the thread of screw thread 3 is 15 millimeters, another selection scheme of screw thread tooth depth of internal thread 3 is 15 millimeters, and another selection scheme of screw thread tooth depth of internal thread 3 is 25 millimeters.
Among Fig. 2, shown the structural representation of the cross section of circular pile body 7.
In work progress, cushion cap reinforcing cage 10 is erected at the end that screw thread 3 is arranged on the circular pile body 7, to ask basket 8 to put into the pile body center hole 1 of circular pile body 7 again, the position of the base plate on the holder basket 8 must not exceed the position that screw thread 3 is arranged on the circular pile body 7, holder basket 8 tops are fixedly connected on the cushion cap reinforcing cage 10, at last, in cushion cap reinforcing cage 10 and holder basket 8, inject concrete, after the concrete setting, cushion cap 11 is solidified as a whole with the downward part 9 of cushion cap, the downward part 9 of cushion cap is solidified as a whole with circular pile body 7 by the screw thread 3 on the circular pile body 7, thereby has realized that cushion cap 11 firmly is connected with circular pile body 7.As shown in Figure 3.
Among Fig. 4, comprise circular pile body 7 and circular metal end plate 4, circular pile body 7 contains reinforcing cage 5, concrete 6, the pile body center hole 1 that a perforation is axially arranged of circular pile body 7, circular metal end plate 4 is arranged on the two ends of circular pile body 7, and is corresponding with the pile body center hole 1 on the circular pile body 7, also is provided with metal end plate center hole 2 on the circular metal end plate 4, the periphery of circular metal end plate 4 is provided with bevel for welding, is provided with anchor hole on the circular metal end plate 4 symmetrically; The inwall of the pile body center hole 1 of one end of circular pile body 7 is provided with inner groove 12, the length that the inwall of pile body center hole 1 is provided with the part of inner groove 12 is 2000 millimeters, the groove depth of inner groove 12 is 20 millimeters, another selection scheme of the groove depth of inner groove 12 is 15 millimeters, and another selection scheme of the groove depth of inner groove 12 is 30 millimeters.The processing mode of inner groove 12 is with embodiment 1.The shape of cross section selection scheme one of inner groove 12: the shape of cross section of inner groove 12 is rectangle, is provided with some rectangle inner grooves 20 (as Fig. 5) at the inwall of the pile body center hole 1 of circular pile body 7 one ends.Scheme two: the shape of cross section of inner groove 12 is trapezoidal, inwall at the pile body center hole 1 of circular pile body 7 one ends is provided with some trapezoidal inner grooves 21 (as Fig. 6), angle β between the dual-side of the cross section of trapezoidal inner groove 21 is chosen as 30 °, another of angle β is chosen as 60 °, and another of angle β is chosen as 100 °; The last base of the cross section of trapezoidal inner groove 21 and the length ratio between the bottom are 0.2; The last base of the cross section of trapezoidal inner groove 21 and the length ratio between the bottom are 0.6; Another of the last base of the cross section of trapezoidal inner groove 21 and the length ratio between the bottom is chosen as 0.9.Scheme three: the shape of cross section of inner groove 12 is triangle, is provided with some triangle inner grooves 22 (as Fig. 7) at the inwall of the pile body center hole 1 of circular pile body 7 one ends.Scheme four: the shape of cross section of inner groove 12 is circular arc, is provided with some circular arc inner grooves 23 (as Fig. 8) at the inwall of the pile body center hole 1 of circular pile body 7 one ends.Scheme five: the shape of cross section of inner groove 12 is for being made of the trough rim of inner groove some straight lines, camber line line segment, is provided with the inner groove 16 (as Fig. 9) that some broken lines constitute trough rims at the inwall of the pile body center hole 1 of circular pile body 7 one ends.Be provided with the inner groove 14 (as Figure 10) that straight line and circular arc line constitute trough rim at the inwall of the pile body center hole 1 of circular pile body 7 one ends.
Among Figure 11, the angle α between the center line of the pile body center hole 1 on the symmetrical section of inner groove 12 and the circular pile body 7 is 90 °, and another selection scheme of angle α is 25 °, and another selection scheme of angle α is 70 °.
Among Figure 12, building in the process of cushion cap 11, the ring-type projection 13 that forms on the downward part 9 of cushion cap is one with inner groove 12 interlocks on the circular pile body 7, has realized that cushion cap 11 firmly is connected with circular pile body 7.
Among Figure 13, the inwall of the pile body center hole 1 of one end of circular pile body 7 is provided with inside spin annular groove 15, the length that the inwall of pile body center hole 1 is provided with the part of inside spin annular groove 15 is 1800 millimeters, the groove depth of inside spin annular groove 15 is 20 millimeters, another selection scheme of the groove depth of inside spin annular groove 12 is 15 millimeters, and another selection scheme of the groove depth of inside spin annular groove 15 is 30 millimeters.The processing mode of inside spin annular groove 15 is with embodiment 1.The selection of the cross sectional shape of the groove of inside spin annular groove 15 is as shown in Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9 and Figure 10 among the embodiment 2.
Among Figure 14, on the inwall of the inside spin annular groove 17 of the intersecting pile body center hole 1 at circular pile body 7 one ends arranged in a crossed manner.
Among Figure 15, be provided with some pits 18 at the inwall of the pile body center hole 1 of circular pile body 7 one ends.
Among Figure 16, be provided with some projections 19 at the inwall of the pile body center hole 1 of circular pile body 7 one ends.
The cutting working method of tapped prestress reinforced concrete circular hollow pile, circular pile body 7 is by existing conventional method processing, after circular pile body 7 is through the centrifuge processing and forming, enter the processing of carrying out the internal thread of circular pile body 7 before the concrete initial set, comprising the steps: that circular pile body 7 is driven by centrifuge does gyration, the circular relatively pile body 7 of processing knife bar does axially and radial motion enters processing stations, adjust allowance, the processing knife bar is done the axial feed cutting along circular pile body 7, after the processing knife bar is finished cutting, the processing knife bar is radially withdrawing from along circular pile body 7 earlier, along axially the withdrawing from of circular pile body 7, the concrete chip that cutting produces enters debris collection device and reclaims again.
The extrusion modling processing method of the prestress reinforced concrete circular hollow pile of band inner groove, circular pile body 7 is by existing conventional method processing, after circular pile body 7 is through the centrifuge processing and forming, enter the processing of carrying out the inner groove 12 of circular pile body 7 before the concrete initial set, comprising the steps: that circular pile body 7 is driven by centrifuge does gyration, installed that the circular relatively pile body 7 of processing knife bar that some moulding roll is done axially and radial motion enters processing stations, according to allowance, the processing knife bar is made radial feed along circular pile body 7, inner surface to the center hole of circular pile body 7 carries out squeeze job, after the processing knife bar is finished squeeze job, processing knife bar elder generation radially withdraws from along circular pile body 7, again axially withdrawing from along circular pile body 7.
Claims (2)
1. be with the cutting working method of the prestress reinforced concrete circular hollow pile of internal thread or inner trough structure, prestress reinforced concrete circular hollow pile comprises circular pile body and circular metal end plate, circular pile body contains reinforcing cage, concrete, the center hole that a perforation is axially arranged of circular pile body, the circular metal end plate is arranged on the two ends of circular pile body, corresponding with the center hole on the circular pile body, also be provided with center hole on the circular metal end plate, on the inwall of the center hole of circular pile body female thread structure or inner trough structure are arranged, the degree of depth of the tooth depth of internal thread or inside groove cell body is 10-30 millimeters, circular pile body is by existing conventional method processing, it is characterized in that after circular pile body is through the centrifuge processing and forming, carry out the internal thread of circular pile body or the processing of inner trough structure before entering concrete initial set, comprising the steps: that circular pile body is driven by centrifuge does gyration, the circular relatively pile body of processing knife bar does axially and radial motion enters processing stations, adjust allowance, the processing knife bar is done the axial feed cutting along circular pile body, after the processing knife bar is finished cutting, the processing knife bar is radially withdrawing from along circular pile body earlier, along axially the withdrawing from of circular pile body, the concrete chip that cutting produces enters debris collection device and reclaims again.
2. be with the extrusion modling processing method of the prestress reinforced concrete circular hollow pile of internal thread or inner trough structure, prestress reinforced concrete circular hollow pile comprises circular pile body and circular metal end plate, circular pile body contains reinforcing cage, concrete, the center hole that a perforation is axially arranged of circular pile body, the circular metal end plate is arranged on the two ends of circular pile body, corresponding with the center hole on the circular pile body, also be provided with center hole on the circular metal end plate, on the inwall of the center hole of circular pile body female thread structure or inner trough structure are arranged, the degree of depth of the tooth depth of internal thread or inside groove cell body is 10-30 millimeters, circular pile body is by existing conventional method processing, it is characterized in that after circular pile body is through the centrifuge processing and forming, carry out the internal thread of circular pile body or the processing of inner trough structure before entering concrete initial set, comprising the steps: that circular pile body is driven by centrifuge does gyration, installed that the circular relatively pile body of processing knife bar that some moulding roll is done axially and radial motion enters processing stations, according to allowance, the processing knife bar is made radial feed along circular pile body, inner surface to the center hole of circular pile body carries out squeeze job, after the processing knife bar is finished squeeze job, processing knife bar elder generation radially withdraws from along circular pile body, again axially withdrawing from along circular pile body.
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CN 201010170647 CN102212993B (en) | 2010-04-06 | 2010-05-13 | Pre-stressed reinforced concrete circular hollow pile with internal thread or internal groove and processing method thereof |
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CN201010139491.X | 2010-04-06 | ||
CN 201010170647 CN102212993B (en) | 2010-04-06 | 2010-05-13 | Pre-stressed reinforced concrete circular hollow pile with internal thread or internal groove and processing method thereof |
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CN102888841B (en) * | 2012-10-25 | 2013-12-11 | 中国地质大学(武汉) | End part thread five-pointed-star-shaped variable-section prefabricated pipe pile and construction method thereof |
CN103112091B (en) * | 2013-01-24 | 2014-05-21 | 盐城市双强管桩有限公司 | Machining device of prestressed reinforced concrete hollow pile internal threads |
CN105837102B (en) * | 2016-04-01 | 2018-03-02 | 江苏东浦管桩有限公司 | A kind of high-strength durable uplift pile of height |
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GB2261456A (en) * | 1991-11-12 | 1993-05-19 | Bing Wing Choy | A shoe for a concrete pile |
CN2296365Y (en) * | 1996-11-21 | 1998-11-04 | 曹沂风 | Pile forming device for various section hollow pile |
CN200974971Y (en) * | 2006-12-01 | 2007-11-14 | 郭晶 | Polygonal pre-tensioned reinforced concrete hollow pile |
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