CN202401454U - Pile forming device for dry soil-withdrawing reinforced concrete screw pile - Google Patents
Pile forming device for dry soil-withdrawing reinforced concrete screw pile Download PDFInfo
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- CN202401454U CN202401454U CN2011205729819U CN201120572981U CN202401454U CN 202401454 U CN202401454 U CN 202401454U CN 2011205729819 U CN2011205729819 U CN 2011205729819U CN 201120572981 U CN201120572981 U CN 201120572981U CN 202401454 U CN202401454 U CN 202401454U
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- pipe
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- punching block
- power head
- pile
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Abstract
The utility model discloses a pile forming device for a dry soil-withdrawing reinforced concrete screw pile. The pile forming device comprises a steel mould pipe provided with an outer spiral body, which penetrates through a pile machine base, wherein a rotary power head is arranged on the upper end of the steel mould pipe, a cross connection head is arranged on the lower part of the pile forming device, the top end of the steel mould pipe is welded with a steel hoop provided with a groove opening on one end, the groove opening is matched with the cross connection head, a clamp, which is integrally connected with the steel hoop and a rotary power head base, is arranged between the steel hoop and the rotary power head base, and an auxiliary rotary power device is arranged in the middle of the steel mould pipe. A pile forming method of the screw pile comprises the following steps of: placing the steel mould pipe in position, starting the power head to screw the steel mould pipe into a soil layer, entering into a work condition of a hard soil layer, starting the auxiliary rotary device to a designed elevation, taking a soil body in the steel mould pipe completely, putting into a reinforcement cage, pouring the concrete to be full of the pipe, reversely rotating the power head, checking the height of the concrete in the steel mould pipe so as to ensure the size of the outer spiral body of the pile, and rotating until a steel mould pipe part leaves the soil layer so as to form the screw pile. The pile forming device, provided by the utility model, has the advantages of large bearing capacity value, excellent pile forming quality, environmental friendliness and energy conservation, and is particularly suitable for a deep soft soil layer and a flat bottom shaped screw pile.
Description
Technical field
The utility model relates to a kind of pile foundation of civil construction project, especially relates to a kind of dried steel bar concrete screw rod piling apparatus that fetches earth that in deep saturated soft clay stratum, is used to support top-out.
Background technology
Like the utility model patent of one Chinese patent application numbers 200610019756.6 " screw rod stake, helical burr ram pile-forming equipment and become pile work method "; The structure of this pile-forming equipment mainly is made up of body, oil cylinder, hydraulic electric motor, automatic control equipment, conveyance conduit; A unit head is installed in the base stand of said body; Said hydraulic electric motor is installed on the said body base, and this hydraulic electric motor links to each other with said unit head through telescopic oil cylinder, and the jig on the drilling rod links to each other with the movable fixture of said unit head; Concrete conveyance conduit and interior drilling rod link, and said automatic control equipment links to each other with said oil cylinder with said hydraulic electric motor respectively.This utility model patent is applicable to the helical burr ram of hillside ground; Rotation is screwed into soil layer with the punching block pipe rotation of flap valve tapered thread, pours into a certain amount of concrete earlier in the screw thread punching block pipe, and the derotation process is pressurization in pipe; Pipe end taper flap valve is opened; Make concrete be filled with the space that the reverse rotation of screw thread punching block pipe is risen and to be reserved, the stake of screw thread concrete, adopt the back to insert reinforcing cage, satisfy the requirement that pile body is joined reinforcing bar.
The advantage of this 200610019756.6 utility model patent " screw rod stake, helical burr ram pile-forming equipment and one-tenth pile work method " is that power output power saving saves time, and speed of application is very fast; Pile-forming equipment adopts telescopic drill rod, and the rig drilling depth improves greatly; Realized the stirring of concrete again, the homogeneity of stake obviously improves.
Yet the weak point of above-mentioned " screw rod stake, helical burr ram pile-forming equipment and one-tenth pile work method " is: it only is applicable to hillside ground and gravelly sand stratum, and can not be applicable to deep soft soil layer; Next is that its reinforcing bar modes of emplacement is taked the back joint bar, and then reinforcement location and quality control are difficult; Its three be it only be applicable to the band taper helical burr ram, can not be applicable to the screw rod stake of flat shape; This 200610019756.6 utility model patent " screw rod stake, helical burr ram pile-forming equipment and become pile work method " belongs to and squeezes the soil stake, and surrounding enviroment and quality of pile are had all has adverse effect.
The utility model content
The utility model technical problem to be solved is the situation to prior art, provides a kind of and is applicable to deep soft soil layer, has higher pile quality and can eliminate mud emission, water saving and the energy-conservation type that fetches earth steel bar concrete screw rod piling apparatus simultaneously again.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of dried steel bar concrete screw rod piling apparatus that fetches earth comprises the punching block pipe that passes a machine base, this punching block pipe upper end configuration one rotary power head; It is characterized in that:
A. this punching block pipe is set to bottom opening and upwards is welded with at the end from pipe be screw-shaped triangle steel bar, forms the punching block pipe of a band external spiral body, and the thread turns of this external spiral body must be greater than 3 circles; In order to guarantee the pile reliability of said steel bar concrete screw rod stake;
B. said rotary power head is arranged on the pipe top of said punching block pipe, and the bottom of this rotary power head is provided with the cross connector;
C. a stirrup is welded on said punching block pipe top, and this stirrup top is provided with notch, and this notch matches with the cross connector of said rotary power head; Like this, rotary power head band punching block pipe is rotated together;
Between the base of d. said stirrup and said rotary power head, dispose four pipe top clamps, this pipe top clamp can be in aggregates with connecting between said rotary power head and the said punching block pipe.
In order to increase the effect of said punching block pipe turning moment; The middle part of said punching block pipe is provided with auxiliary rotary power unit; Should comprise the auxiliary rotary power head of being with pinion by auxiliary rotary power unit; Should connect the gear-box that a band hydraulic pressure is embraced pipe unit by auxiliary rotary power head, the gear wheel of this gear-box is meshed with said pinion; Said punching block pipe outer wall is provided with the friction shoe that is adjacent to, and this friction shoe connects one armful of pipe jack, and this armful pipe jack is fixed on the said gear wheel end face.
In order to improve the transmission efficiency of auxiliary rotary power unit, said rotary power head, said gear wheel and said punching block pipe rotate synchronously.
For with the gear-box installing and locating on the stake machine base, as preferably, said gear-box is set to square, these four square corners respectively are provided with lateral opening, are provided with column during this is lateral opening, this column is fixed on the said stake machine base; Also be provided with a plurality of backhaul jack on this machine base, the top of this backhaul jack and said gear-box bottom surface offset.
Processing for ease, as preferably, said cross connector is to be welded with the cross steel bar.
As preferably, said notch is provided with four, evenly arranges along circumference.
The utility model compared with prior art; Its advantage is to be with the stake of spirochetal steel bar concrete screw rod; Can improve bearing capacity value greatly, and can save a large amount of clean waters, save water resource and can save mass energy consumption, be the technology of environmental protection and energy saving with dried soil basketing method construction castinplace pile; Next is the screw rod stake that is applicable to deep soft soil layer and flat shape, and reinforcing bar and concrete place simultaneously, and workmanship is controlled easily; It three is that non-crowded soil stake helps protecting construction environment and improves pile quality.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the B-B view of Fig. 1;
Fig. 4 is the formation of pile sketch map of the utility model;
The specific embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
Fig. 1 to Fig. 4 illustrates an embodiment of the utility model, and it comprises the punching block pipe 1 that passes a machine base 6, this punching block pipe upper end configuration one rotary power head 3.
This punching block pipe 1 is set to bottom opening and upwards is welded with at the end from pipe be shape of threads triangle steel bar 2, forms the punching block pipe with external spiral body, and in order to guarantee the pile reliability of said steel bar concrete screw rod stake, the thread turns of this external spiral body must be greater than 3 circles;
The pipe top of this punching block pipe 1 is provided with rotary power head 3, and the bottom of this rotary power head 3 is connected with cross connector 9, and this cross connector 9 can be welded with the cross steel bar, and is as shown in Figure 3;
A stirrup 11 is welded on punching block pipe 1 top, and a plurality of notches 12 are offered on these stirrup 11 tops, and the cross connector 9 of said rotary power head snaps in this notch 12, like this, can drive punching block pipe 1 rotation of external spiral body; Through four pipe top clamps 10, can connect in aggregates with punching block pipe 1 rotary power head 3; So that promote and mobile punching block pipe 1, remove pipe top clamp 10, rotary power head 3 can break away from the suitable for reading of said punching block pipe 1 easily, so that insert reinforcing cage, pour into concrete from this punching block pipe suitable for reading.
Fig. 2 is auxiliary rotary power unit sketch map, and this auxiliary rotary power unit is located at the middle part of punching block pipe 1; Should comprise an auxiliary power head 4 by auxiliary rotary power unit, this auxiliary power head 4 connects the gear-box 5 that a band hydraulic pressure is embraced pipe unit, and the gear wheel 51 of this gear-box 5 is meshed with the pinion 41 of said rotary power head 4; This gear wheel 51 is fixed on the bearing of a machine base 6.Hydraulic pressure is embraced pipe unit and is included four friction shoes, the 13 coupled armful pipe jack 14 that connect; This armful pipe jack 14 is fixed on said gear wheel 51 end faces.
Hydraulic pressure is embraced the friction shoe of pipe unit and is close to punching block pipe 1; When punching block pipe 1 gets into hardpan and need the auxiliary power head 4 additional when increasing turning moment; This auxiliary power head 4 drives the gear wheel rotation that hydraulic pressure is embraced the pipe unit gear-box; Drive the pipe jack 14 of embracing that is fixed on the gear wheel end face simultaneously and rotate, this armful pipe jack 14 pushes up again to stretch friction shoe 13 and hug punching block pipe 1 and rotates together; This auxiliary power head 4 reaches synchronous rotation with said rotary power head 3, can realize increasing significantly the turning moment of punching block pipe 1.
Four root posts 7 that are fixed on the machine base 6 are inserted in respectively in the hole, four corners of square shaped teeth roller box 5, are used for the gear-box installing and locating in the stake machine base; On stake machine base 6, also be fixed with a plurality of backhaul jack 8; Embrace pipe jack 14 when unclamping; Be about to friction shoe 13 and punching block pipe 1 both when unclamping; The backhaul jack 8 jacking gear-boxes 5 that then are fixed on the machine chassis 6 rise to highest order; Embrace pipe jack 14 tops and stretch friction shoe 13 and hug punching block pipe 1, backhaul jack 8 can backhaul to being in the operating mode that auxiliary power head 4 drives 1 rotation of punching block pipes.
The utility model mainly is to rely on the turning moment of rotary power head 3 that 1 rotation of punching block pipe is screwed into soil layer, and auxiliary power head 4 just when this turning moment is not enough, remedies to increase the effect of turning moment, is accidental operating mode when being used to augment the turning moment deficiency.
When the utility model is screwed into soil layer to design altitude when punching block pipe 1, at this moment, get into the soil body of full packages in the punching block pipe 1; The soil body of available long spiral soil-discharging device in the screw-in punching block pipe suitable for reading of punching block pipe 11; And the suitable for reading of the soil body to punching block pipe 1, spoir, the soil body defecation in punching block pipe 1 proposed; The special-purpose soil sampler of also available tubular is got the soil body in the clean punching block pipe 1, or with the soil body in the special-purpose soil-discharging device emptying punching block pipe 1; Then, in punching block pipe 1, insert reinforcing cage, pour into concrete to full packages, the punching block pipe 1 of reverse rotation band external spiral body, this punching block pipe 1 rises along spiral, until going out the soil layer pile.
The utility model formation of pile is following, referring to shown in Figure 4:
The first step, in design stake position that punching block pipe 1 is in place, it is in place again the stake machine base to be installed to the bottom of punching block pipe 1; The cross connector 9 of rotary power head 3 is fixedly snapped in the notch 12 on punching block pipe 1 top, and the pipe top clamp 10 with rotary power head 3 is clamped in the suitable for reading of punching block pipe 1 again; Open rotary power head 3 then; Method with the turn of the screw will be screwed into soil layer with punching block pipe 1 rotation of external spiral body, when getting into hardpan, like being short of power of rotary power head 3; Then adopt auxiliary power head 4 to replenish; Make the rotary power stack, hydraulic pressure is embraced pipe unit and is hugged punching block pipe 1, and rotary power head 3 is screwed into soil layer to design altitude with the 4 collaborative rotations of auxiliary power head with punching block pipe 1; At this moment, get into the soil body of full packages in the punching block pipe 1;
Second step, will manage top clamp 10 and loosen, and remove from the punching block pipe is suitable for reading, select the soil body in special-purpose soil sampler of existing equipment rotary drilling rig or tubular or the special-purpose soil-discharging device defecation punching block pipe 1 to get only; Can be long according to field condition, duration and stake, select wherein relatively easily soil basketing method to get pure land body;
In the 3rd step, insert reinforcing cage, pour into concrete to full packages from punching block pipe 1 suitable for reading;
The 4th step; The cross connector 9 of rotary power head 3 is fixedly snapped in the notch 12 on punching block pipe 1 top, and the pipe top clamp 10 with rotary power head 3 is clamped in the suitable for reading of punching block pipe 1, reverse rotation unit head 3 again; At any time check punching block pipe 1 concrete height; Rely on the gravity pressure of managing interior concrete could form the thread size of screw rod stake, rotate to always the punching block pipe is all left soil layer, promptly form steel bar concrete screw rod stake 30.
The utility model can be saved a large amount of clean waters with dried soil basketing method construction castinplace pile, saves water resource and mass energy consumption thereof, is a kind of job practices of environmental protection and energy saving.
The dried steel bar concrete screw rod stake of fetching earth of the utility model is again the stake type of high-bearing proterties; Similar screw is screwed into soil layer, and the side friction that the bearing capacity value of original stake calculates is substituted by the shear stress of present stake week soil, because the shear stress of soil is more much older with the frictional resistance of soil than stake; So with the same diameter of routine, compare with the long bored pile type of stake; The bearing capacity value of screw rod stake can improve more than 50%, can save 1/3rd pile body concrete and reinforcing bar, and work efficiency can improve 1～1.5 times.
Claims (6)
1. the dried steel bar concrete screw rod piling apparatus that fetches earth comprises the punching block pipe that passes a machine base, this punching block pipe upper end configuration one rotary power head; It is characterized in that:
A. this punching block pipe (1) is set to bottom opening and upwards is welded with at the end from pipe be screw-shaped triangle steel bar (2), forms the punching block pipe (1) of a band external spiral body, and the thread turns of this external spiral body must be greater than 3 circles;
B. said rotary power head (3) is arranged on the pipe top of said punching block pipe (1), and the bottom of this rotary power head (3) is provided with cross connector (9);
C. a stirrup (11) is welded on said punching block pipe top, and this stirrup top is provided with notch (12), and this notch (12) matches with the cross connector (9) of said rotary power head;
Between the base of d. said stirrup (11) and said rotary power head (3), dispose four pipe top clamps (10), this pipe top clamp can be in aggregates with connecting between said rotary power head and the said punching block pipe.
2. according to the said dried steel bar concrete screw rod piling apparatus that fetches earth of claim 1; It is characterized in that: the middle part of said punching block pipe (1) is provided with auxiliary rotary power unit (20); Should comprise the auxiliary rotary power head (4) of being with pinion (41) by auxiliary rotary power unit; Should connect the gear-box (5) that a band hydraulic pressure is embraced pipe unit by auxiliary rotary power head, the gear wheel of this gear-box (51) is meshed with said pinion (41); Said punching block pipe (1) outer wall is provided with the friction shoe (13) that is adjacent to, and this friction shoe connects one armful of pipe jack (14), and this armful pipe jack is fixed on said gear wheel (51) end face.
3. according to the said dried steel bar concrete screw rod piling apparatus that fetches earth of claim 2, it is characterized in that: said rotary power head (3), said gear wheel (51) and said punching block pipe (1) rotation synchronously.
4. according to the said dried steel bar concrete screw rod piling apparatus that fetches earth of claim 2; It is characterized in that: said gear-box (5) is set to square; These four square corners respectively are provided with lateral opening, are provided with column (7) during this is lateral opening, and this column (7) is fixed on the said stake machine base (6); Also be provided with a plurality of backhaul jack (8) on this machine base (6), the top of this backhaul jack (8) and said gear-box (5) bottom surface offset.
5. according to the said dried steel bar concrete screw rod piling apparatus that fetches earth of claim 1, it is characterized in that: said cross connector (9) is to be welded with the cross steel bar.
6. according to the said dried steel bar concrete screw rod piling apparatus that fetches earth of claim 1, it is characterized in that: said notch (12) is provided with four, evenly arranges along circumference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205729819U CN202401454U (en) | 2011-12-21 | 2011-12-21 | Pile forming device for dry soil-withdrawing reinforced concrete screw pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205729819U CN202401454U (en) | 2011-12-21 | 2011-12-21 | Pile forming device for dry soil-withdrawing reinforced concrete screw pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202401454U true CN202401454U (en) | 2012-08-29 |
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ID=46699108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205729819U Expired - Lifetime CN202401454U (en) | 2011-12-21 | 2011-12-21 | Pile forming device for dry soil-withdrawing reinforced concrete screw pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202401454U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102561341A (en) * | 2011-12-21 | 2012-07-11 | 孔超 | Dry-soil-removed reinforced concrete screw pile forming device and method |
| TWI610013B (en) * | 2015-11-24 | 2018-01-01 | Forming method of threaded planting device |
-
2011
- 2011-12-21 CN CN2011205729819U patent/CN202401454U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102561341A (en) * | 2011-12-21 | 2012-07-11 | 孔超 | Dry-soil-removed reinforced concrete screw pile forming device and method |
| TWI610013B (en) * | 2015-11-24 | 2018-01-01 | Forming method of threaded planting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120829 Effective date of abandoning: 20141203 |
|
| RGAV | Abandon patent right to avoid regrant |