CN202846683U - Double wall type steel die with inside die and outside die for prestressed concrete heterotypic pile - Google Patents
Double wall type steel die with inside die and outside die for prestressed concrete heterotypic pile Download PDFInfo
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- CN202846683U CN202846683U CN 201220426415 CN201220426415U CN202846683U CN 202846683 U CN202846683 U CN 202846683U CN 201220426415 CN201220426415 CN 201220426415 CN 201220426415 U CN201220426415 U CN 201220426415U CN 202846683 U CN202846683 U CN 202846683U
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Abstract
The utility model discloses a double wall type steel die with an inside die and an outside die for a prestressed concrete heterotypic pile, and the double wall type steel die with the inside die and the outside die for the prestressed concrete heterotypic pile includes an upper die and an lower die in a matched use. Both the upper die and the lower die include with an inside die and an outside die in a matched arrangement. The outside die is a rigid die and the inside die is a flexible die. An inner surface of the inside die is matched with an outside die of the prestressed concrete heterotypic pile, and the inside die is formed by an inside die U-shaped slot. A longitudinal tongue-and-groove stiffened plate is arranged on the position of clamping the upper die and the lower die. The inside die U-shaped slot and the outside die are arranged at intervals. When the prestressed concrete heterotypic pile is laid, the inside die is deformed along with a die body pressed. The deformation is absorbed by the inside die U-shaped slot, and therefore the position of the protrusion of the die body is ensured to be complete and no crack. The double wall type steel die with the inside die and the outside die for the prestressed concrete heterotypic pile is provided with the outside die formed by a high stiffness template and the inside die formed by a low stiffness template. The double wall type steel die with the inside die and the outside die for the prestressed concrete heterotypic pile has the advantages that the steel die can't deform during the production manufacturing process of lifting, centrifugating, and maintaining, and the crack of the pile body caused by the overhigh stiffness of the die can't happen.
Description
Technical field
The utility model relates to the Construction Technology field, die apparatus technology particularly, and specifically the prestressed concrete shaped pile is with interior external mold double wall body formula punching block.
Background technology
Pretensioning prestressed concrete pile can bear hammering because the intensity of pile concrete is high and certain compressive pre-stress is arranged in pile driving process, the effect of the various construction external force such as static pressure keeps the intact of pile body.This kind stake type is high with its bearing capacity of single pile, and pile body is anti-to be beaten, and penetration power is strong, reliable in quality, and the advantage such as unit bearing capacity cost is relatively low is used widely throughout the country.
The main technique that compressive pre-stress applies in the centrifugal forming pretensioning prestressed concrete pile manufacture process is: deformed bar is weaved into steel reinforcement cage put into punching block, then concrete is dropped in the punching block, with hydraulic jack etc. deformed bar is carried out stretch-draw as counterforce device with punching block, the stretching force that applies is born by punching block by the anchor plate that is fixed on the punching block both ends of the surface: carry out steam curing to accelerate concrete strength development so that deformed bar and concrete are combined into one after forming the pile body shape by centrifugal forming: after concrete strength reaches certain requirement, put and open, the whole transfers of stretching force are born for pile concrete.
This put in the process take stake long 15 meters as example, compression about number 1.5-4mm can appear according to the big or small pile body length of pile concrete compressive pre-stress.Because the non-shaped pile of centrifugal forming pretensioning prestressed concrete is (such as pile tube, square pile) periphery is without special-shaped projection etc., and the punching block inwall is smooth state, separates with the punching block inwall after pile body is compressed when putting, this compression meeting mean allocation can the crack not occur at pile body in pile body.But the punching block that this inwall is level and smooth can't be produced shaped pile, is national building material industry standard JC/T605-2005[pretensioned prestressed concrete pipe pile punching block with punching block when the centrifugal forming pretensioning prestressed concrete pile of prior art is produced] shown in the individual layer wall body consist of.When using the punching block of this type to produce the prestressed concrete shaped pile, pile body with projection need to form concavity at the punching block inwall and can be shaped.In putting a process, when pile compression, because the pile body projection is fixed on the compression that punching block inwall concavity section can't follow pile body, can produce the crack at pile body and pile body projection bound fraction, when serious even protruding dropping can occur.And pile body can't separate with punching block, causes the product stripping difficulty.
If the rigidity of decrease punching block so that punching block has larger deformability, and is controlled at the angle of prestressed concrete shaped pile bossing and pile body more than 150 degree, the height of projection can reduce the possibility that the crack occurs below 40mm.But such punching block is difficult to bear prestressed stretching force as counterforce device because rigidity is excessively low.And in lifting, centrifugal, punching block easily is out of shape in the manufacture course of products such as maintenance, is difficult to satisfy the requirement of suitability for industrialized production.The prestressed concrete shaped pile bossing that adds manufacturing is too small, has limited the range of application of product.
CN101143465B has proposed a kind of core and upper and lower mould of outside of adopting and has made up, and, longitudinal fluting also must be set reach the requirement that prevents pile body and pile body projection bound fraction generation crack except circumferential groove is set in upper and lower mould mould inside.At pile body the manufacture difficulty increasing cost that vertical bossing has not only increased punching block is set, and under some geological conditions, this part hinders the movement of soil body interstitial water, is unfavorable for improving bearing capacity.
Summary of the invention
Technical problem to be solved in the utility model is for above-mentioned prior art present situation, and provide a kind of with high rigidity template as adventitia, low rigidity template as inner membrance, both in lifting, centrifugal, punching block can not be out of shape not the prestressed concrete shaped pile that can the crack occur because of the too high so that pile body of mold stiffness with interior external mold double wall body formula punching block yet in the manufacture course of products such as maintenance.
The utility model solves the problems of the technologies described above the technical scheme that adopts:
The prestressed concrete shaped pile is with interior external mold double wall body formula punching block, include the patrix and the counterdie that are used in conjunction with, wherein, the external mold that is equipped with inside and outside patrix and counterdie include and internal mold, external mold are rigid mould, and internal mold is flexible die, the outer surface of the inner surface of internal mold and prestressed concrete shaped pile is suitable, and be formed with the internal mold groove on the internal mold, patrix and counterdie matched moulds place are provided with vertical tongue and groove gusset, and internal mold groove and outer die clearance arrange.
For optimizing technique scheme, Adopts measure also comprises:
Above-mentioned internal mold mould is thick to be 4 millimeters to 8 millimeters.
Above-mentioned internal mold mould is thick to be 5 millimeters to 6 millimeters.
Be vertically arranged with the vertical gusset for Lifting Modules rigidity on the above-mentioned external mold.
Hoop is provided with liner plate on the above-mentioned external mold.
Above-mentioned internal mold longitudinal rib plate thickness is no more than 8 millimeters.
The cell wall of above-mentioned internal mold groove and the die wall angle of internal mold are more than or equal to 120 °, and the groove depth of internal mold groove is 40 millimeters to 150 millimeters.
Above-mentioned external mold mould is thick in 7 millimeters.
Above-mentioned external mold is that continuous tubular steel pipe is connected and fixed by vertical gusset and forms.
Above-mentioned external mold is that the tubular steel pipe of segmentation is connected and fixed by vertical gusset and forms and tubular steel pipe position arranges corresponding to the internal mold groove.
Compared with prior art, prestressed concrete shaped pile of the present utility model is with interior external mold double wall body formula punching block, include the patrix and the counterdie that are used in conjunction with, wherein, the external mold that is equipped with inside and outside patrix and counterdie include and internal mold, external mold is rigid mould, internal mold is flexible die, and the outer surface of the inner surface of internal mold and prestressed concrete shaped pile is suitable, and is formed with the internal mold groove on the internal mold, patrix and counterdie matched moulds place are provided with vertical tongue and groove gusset, internal mold groove and outer die clearance arrange, and when putting the stake of tension prestress concrete irregular, internal mold is followed the pile compression distortion, and this distortion is absorbed by the internal mold groove, guarantees the complete free from flaw of pile body high spot.The utility model is a kind of punching block of interior external mold double wall body structure.External mold rigidity is larger, and the rigidity of internal mold is less, and the internal mold cavity shape is identical with the outer shape of pile body, and the concavity of internal mold partly is to leave certain space between internal mold groove and the outer mold cavity.Anchor plate when the punching block both ends of the surface are used for deformed bar stretch-draw need be fixed on the end face of external mold part, and before concrete was unhardened, the prestressed stretch-draw that applies advocated to be born by external mold like this.Because the rigidity of internal mold is little, after the concrete hardening in putting a process when pile compression, punching block inwall concavity section can follow the compression of pile body and micro-strain occurs, and this micro-deformation will be absorbed by the gap between the concavity of internal mold part and the outer mold cavity.Guarantee that like this pile body and pile body projection joint portion can not produce the crack, pile body is separated smoothly with punching block.This strain can disappear at pile body and punching block after separating, and punching block can Reusability and can not produce adverse influence to the serviceability of punching block.
The thickness of internal mold wall body is no more than 8 millimeters, and best thickness is 5 millimeters to 6 millimeters.Thickness is during greater than 8 millimeters, and the rigidity of internal mold is excessive, is difficult to produce the strain of trace, and the pile body lug boss can't partly separate with the concavity of internal mold, and pile body the crack can occur with the protruding joint portion of pile body.And the blocked up meeting of thickness causes waste of material.But when thickness was crossed book less than 4 millimeters, punching block was in lifting, and easily larger distortion in the centrifugal manufacture course of products such as grade causes pile body deformation, and pile body can produce the crack.In putting a process, because internal mold distortion is large, easily produce stress in pile body and pile body projection joint portion concentrated, on the contrary so that pile body be difficult to separate with punching block.
Except the vertical tongue and groove gusset of patrix and counterdie matched moulds place, internal mold does not configure other vertical gussets.If when needing to use longitudinal supporting plate in the punching block manufacture process because of technological requirement, its thickness should be greater than 8 millimeters.Be generally the rigidity that guarantees punching block, as shown in national building material industry standard JC/T605-2005 (pretensioned prestressed concrete pipe pile punching block), the periphery of punching block wall body needs several vertical gusset of configuration and wall body welding except the vertical tongue and groove gusset of patrix and counterdie matched moulds place.Configure the strain that inwall concavity section that vertical gusset can limit punching block internal mold of the present utility model follows the compression of pile body and trace occurs.
Concavity part and the wall body angulation of internal mold are not less than 120 degree, and concavity part depth capacity is 40 millimeters to 150 millimeters.When the concavity of internal mold part was spent less than 120 with the wall body angulation, easily to produce stress concentrated putting a process pile and pile body projection joint portion, can't guarantee that pile body and punching block are difficult to separate.Concavity part depth capacity is during less than 40 millimeters, and the centrifugal forming pretensioning prestressed concrete shaped pile of producing loses its engineering application value.When concavity part depth capacity during greater than 150 millimeters, the compression of following pile body owing to the inwall concavity section of punching block internal mold produces excessive deformation, exceeds the regime of elastic deformation of steel, so that this distortion is difficult to be restored, can't guarantee the Reusability of punching block.
The utlity model has with high rigidity template as adventitia, low rigidity template as inner membrance, both in lifting, centrifugal, can not be out of shape can be too not high so that the advantage in crack appears in pile body because of mold stiffness yet for punching block in the manufacture course of products such as maintenance.
Description of drawings
Fig. 1 is the structural representation of the utility model the first embodiment;
Fig. 2 is the top view of Fig. 1.
The specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
Fig. 1 is to Figure 2 shows that structural representation of the present utility model.
Reference numeral wherein is: external mold 1, internal mold 2, internal mold groove 21, patrix 3, counterdie 4, tongue and groove gusset 5, vertical gusset 6, liner plate 7.
The first embodiment: extremely shown in Figure 2 such as Fig. 1,
Prestressed concrete shaped pile of the present utility model is with interior external mold double wall body formula punching block, include the patrix 3 and the counterdie 4 that are used in conjunction with, wherein, the external mold 1 that is equipped with inside and outside patrix 3 and counterdie 4 include and internal mold 2, external mold 1 is rigid mould, internal mold 2 is flexible die, the outer surface of the inner surface of internal mold 2 and prestressed concrete shaped pile is suitable, and be formed with internal mold groove 21 on the internal mold 2, patrix 3 is provided with vertical tongue and groove gusset 5 with counterdie 4 matched moulds places, internal mold groove 21 arranges with external mold 1 gap, when putting the stake of tension prestress concrete irregular, internal mold 2 is followed the pile compression distortion, and should distortion be absorbed by internal mold groove 21, guarantees the complete free from flaw of pile body high spot.
Among the embodiment, internal mold 2 moulds are thick to be 4 millimeters to 8 millimeters.
Among the embodiment, internal mold 2 moulds are thick to be 5 millimeters to 6 millimeters.
Among the embodiment, be vertically arranged with the vertical gusset 6 for Lifting Modules rigidity on the external mold 1.
Among the embodiment, hoop is provided with liner plate 7 on the external mold 1.
Among the embodiment, vertically gusset 6 thickness are no more than 8 millimeters.
Among the embodiment, the die wall angle of the cell wall of internal mold groove 21 and internal mold 2 is more than or equal to 120 °, and the groove depth of internal mold groove 21 is 40 millimeters to 150 millimeters.
Among the embodiment, external mold 1 mould is thick in 7 millimeters.
Among the embodiment, external mold 1 forms for continuous tubular steel pipe is connected and fixed by vertical gusset 6.
The utility model is a kind of punching block of interior external mold 1 double wall body structure.External mold 1 rigidity is larger, and the rigidity of internal mold 2 is less, and internal mold 2 cavity shapes are identical with the outer shape of pile body, and the concavity of internal mold 2 partly is to leave certain space between internal mold groove 21 and external mold 1 inner chamber.Anchor plate when the punching block both ends of the surface are used for deformed bar stretch-draw need be fixed on the end face of external mold 1 part, and before concrete was unhardened, the prestressed stretch-draw that applies advocated to be born by external mold 1 like this.Because the rigidity of internal mold 2 is little, after the concrete hardening in putting a process when pile compression, punching block inwall concavity section can follow the compression of pile body and micro-strain occurs, and this micro-deformation will be absorbed by the gap between the concavity of internal mold 2 part and external mold 1 inner chamber.Guarantee that like this pile body and pile body projection joint portion can not produce the crack, pile body is separated smoothly with punching block.This strain can disappear at pile body and punching block after separating, and punching block can Reusability and can not produce adverse influence to the serviceability of punching block.
The thickness of internal mold 2 wall bodies is no more than 8 millimeters, and best thickness is 5 millimeters to 6 millimeters.Thickness is during greater than 8 millimeters, and the rigidity of internal mold 2 is excessive, is difficult to produce the strain of trace, and the pile body lug boss can't partly separate with the concavity of internal mold 2, and pile body the crack can occur with the protruding joint portion of pile body.And the blocked up meeting of thickness causes waste of material.But when thickness was crossed book less than 4 millimeters, punching block was in lifting, and easily larger distortion in the centrifugal manufacture course of products such as grade causes pile body deformation, and pile body can produce the crack.In putting a process, because internal mold 2 distortion is large, easily produce stress in pile body and pile body projection joint portion concentrated, on the contrary so that pile body be difficult to separate with punching block.
Except patrix 3 and the vertical tongue and groove gusset 5 in counterdie 4 matched moulds places, internal mold 2 does not configure other vertical gussets.If when needing to use longitudinal supporting plate in the punching block manufacture process because of technological requirement, its thickness should be greater than 8 millimeters.Be generally the rigidity that guarantees punching block, as shown in national building material industry standard JC/T605-2005 (pretensioned prestressed concrete pipe pile punching block), the periphery of punching block wall body needs several vertical gusset 6 of configuration and wall body welding except patrix 3 and the vertical tongue and groove gusset 5 in counterdie 4 matched moulds places.The inwall concavity section that configures vertical gusset 6 meeting restrictions punching block internal mold 2 of the present utility model follows the compression of pile body and micro-strain occurs.
Concavity part and the wall body angulation of internal mold 2 are not less than 120 degree, and concavity part depth capacity is 40 millimeters to 150 millimeters.When the concavity of internal mold 2 part was spent less than 120 with the wall body angulation, easily to produce stress concentrated putting a process pile and pile body projection joint portion, can't guarantee that pile body and punching block are difficult to separate.Concavity part depth capacity is during less than 40 millimeters, and the centrifugal forming pretensioning prestressed concrete shaped pile of producing loses its engineering application value.When concavity part depth capacity during greater than 150 millimeters, the compression of following pile body owing to the inwall concavity section of punching block internal mold 2 produces excessive deformation, the regime of elastic deformation that exceeds steel so that this distortion is difficult to be restored, can't guarantee the Reusability of punching block.
The second embodiment:
Among the embodiment, external mold 1 forms and tubular steel pipe position arranges corresponding to internal mold groove 21 for the tubular steel pipe of segmentation is connected and fixed by vertical gusset 6.Do not state part with the first embodiment.
Claims (10)
1. the prestressed concrete shaped pile is with interior external mold double wall body formula punching block, include the patrix (3) and the counterdie (4) that are used in conjunction with, it is characterized in that: the external mold (1) that is equipped with inside and outside described patrix (3) and counterdie (4) include and internal mold (2), described external mold (1) is rigid mould, described internal mold (2) is flexible die, the inner surface of described internal mold (2) and the outer surface of prestressed concrete shaped pile are suitable, and be formed with internal mold groove (21) on the internal mold (2), described patrix (3) is provided with vertical tongue and groove gusset (5) with counterdie (4) matched moulds place, and described internal mold groove (21) arranges with external mold (1) gap.
2. prestressed concrete shaped pile according to claim 1 is with interior external mold double wall body formula punching block, and it is characterized in that: described internal mold (2) mould is thick to be 4 millimeters to 8 millimeters.
3. prestressed concrete shaped pile according to claim 2 is with interior external mold double wall body formula punching block, and it is characterized in that: described internal mold (2) mould is thick to be 5 millimeters to 6 millimeters.
4. prestressed concrete shaped pile according to claim 3 is characterized in that: be vertically arranged with the vertical gusset (6) for Lifting Modules rigidity on the described external mold (1) with interior external mold double wall body formula punching block.
5. prestressed concrete shaped pile according to claim 4 is characterized in that with interior external mold double wall body formula punching block: the upper hoop of described external mold (1) is provided with liner plate (7).
6. prestressed concrete shaped pile according to claim 5 is with interior external mold double wall body formula punching block, and it is characterized in that: described vertical gusset (6) thickness is no more than 8 millimeters.
7. prestressed concrete shaped pile according to claim 6 is with interior external mold double wall body formula punching block, it is characterized in that: the die wall angle of the cell wall of described internal mold groove (21) and internal mold (2) is more than or equal to 120 °, and the groove depth of internal mold groove (21) is 40 millimeters to 150 millimeters.
8. prestressed concrete shaped pile according to claim 7 is with interior external mold double wall body formula punching block, and it is characterized in that: described external mold (1) mould is thick in 7 millimeters.
9. prestressed concrete shaped pile according to claim 8 is characterized in that with interior external mold double wall body formula punching block: described external mold (1) forms for continuous tubular steel pipe is connected and fixed by vertical gusset (6).
10. prestressed concrete shaped pile according to claim 8 is with interior external mold double wall body formula punching block, it is characterized in that: described external mold (1) forms for the tubular steel pipe of segmentation is connected and fixed by vertical gusset (6), and tubular steel pipe position arranges corresponding to internal mold groove (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220426415 CN202846683U (en) | 2012-08-27 | 2012-08-27 | Double wall type steel die with inside die and outside die for prestressed concrete heterotypic pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220426415 CN202846683U (en) | 2012-08-27 | 2012-08-27 | Double wall type steel die with inside die and outside die for prestressed concrete heterotypic pile |
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| Publication Number | Publication Date |
|---|---|
| CN202846683U true CN202846683U (en) | 2013-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220426415 Withdrawn - After Issue CN202846683U (en) | 2012-08-27 | 2012-08-27 | Double wall type steel die with inside die and outside die for prestressed concrete heterotypic pile |
Country Status (1)
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|---|---|
| CN (1) | CN202846683U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102825658A (en) * | 2012-08-27 | 2012-12-19 | 中淳高科桩业股份有限公司 | Inner/outer die double wall body type steel die for pre-stressed concrete special-shaped pile |
| CN108708373A (en) * | 2018-04-18 | 2018-10-26 | 中国地质大学（武汉） | A kind of streamlined pile pile and its make mold |
-
2012
- 2012-08-27 CN CN 201220426415 patent/CN202846683U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102825658A (en) * | 2012-08-27 | 2012-12-19 | 中淳高科桩业股份有限公司 | Inner/outer die double wall body type steel die for pre-stressed concrete special-shaped pile |
| CN102825658B (en) * | 2012-08-27 | 2014-08-20 | 中淳高科桩业股份有限公司 | Inner/outer die double wall body type steel die for pre-stressed concrete special-shaped pile |
| CN108708373A (en) * | 2018-04-18 | 2018-10-26 | 中国地质大学（武汉） | A kind of streamlined pile pile and its make mold |
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| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130403 Effective date of abandoning: 20140820 |
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| RGAV | Abandon patent right to avoid regrant |