CN211446900U - Precast pile capable of grouting - Google Patents

Abstract

The utility model discloses a but slip casting precast pile and be applied to bearing structure of this precast pile, including the pile body, the looped pipeline of being responsible for and a plurality of and the bottom intercommunication of being responsible for has been seted up in the pile body, be the opening setting in the upper end of pile body with the looped pipeline in being responsible for, the axial of being responsible for and looped pipeline all with the axial direction of pile body parallel, the upper end opening part of being responsible for sets up to advancing the thick liquid mouth, the perisporium of looped pipeline is equidistant the side grout outlet of offering a plurality of and soil body intercommunication along the axis direction, the equal sliding connection of perisporium of a plurality of looped pipelines has the support, the support is in side grout outlet fixedly connected with baffle, be provided with the adjusting part who is used for the adjusting the baffle position between the upper end. The baffle and the cover plate prevent soil from entering the secondary pipe at the side grout outlet and the lower grout outlet, so that the effect of limiting soil from entering the secondary pipe is realized, the bonding of concrete grout and the soil is facilitated, and the effect of strengthening the supporting capacity of the pile body is realized.

Description

Precast pile capable of grouting

Technical Field

The utility model belongs to the technical field of the technique of pile foundation and specifically relates to a precast pile can slip casting.

Background

The existing commonly used engineering pile forms mainly comprise two categories, namely a precast pile and a cast-in-place pile, and the precast pile is characterized in that the engineering pile is precast and formed and then placed in a soil body, and the combined action of the pile and the soil is utilized to provide compression resistance, pulling resistance, bending resistance or horizontal bearing capacity; the cast-in-place pile is characterized in that the bearing capacity of a pile foundation can be improved by enlarging the contact surface between the pile end and the soil body in the rock-soil body, the pile end and the soil body both rely on the frictional resistance of the soil on the pile side and the pile end force to provide the bearing capacity of the pile foundation, and the pile side and the pile end soil bearing performance are not favorably exerted due to the soil squeezing effect during driving.

In order to solve the above problems, a chinese patent with publication number CN202164598U proposes a prefabricated squeeze-expanded pile, which comprises a hollow prefabricated pile and a pile bottom expanded section pile, wherein the prefabricated pile is provided with at least two grout outlet holes, concrete passes through the hollow prefabricated pile and the grout outlet holes to form a pile body squeeze-expanded section on the prefabricated pile, and a concrete grouting pipe is formed in the prefabricated pile.

The above prior art solutions have the following drawbacks: the concrete flows out through hollow precast pile and grout outlet and is connected with the soil body with the enhancement stake with the outer soil bonding of stake, but pile sinking in-process, partial soil body gets into the stake via grout outlet, and the concrete bonds influence the mobility of concrete in grout outlet department with earth in the stake, leads to the concrete can't flow from grout outlet smoothly, reduces precast pile and outside soil body bonding effect, reduces the fixed effect of support of precast pile.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a precast pile can slip casting, it has the effect that does benefit to the concrete thick liquid and flow in the side play thick liquid hole.

The utility model discloses a can realize through following technical scheme:

the utility model provides a precast pile can slip casting, includes the pile body, seted up in the pile body be responsible for and a plurality of with the auxiliary pipe of the bottom intercommunication of being responsible for, be responsible for with the auxiliary pipe in the upper end of pile body is the opening setting, be responsible for with the axial of auxiliary pipe all with the axial direction of pile body is parallel, the upper end opening part of being responsible for sets up to advance the thick liquid mouth, the perisporium of auxiliary pipe is equidistant along the axis direction set up a plurality of with the side grout outlet of soil body intercommunication, a plurality of the equal sliding connection of perisporium of auxiliary pipe has the support, the support in side grout outlet department fixedly connected with baffle, the upper end of support with be provided with between the pile body and be used for adjusting the adjusting part of baffle position.

By adopting the technical scheme, when the pile body sinks, soil is prevented from entering the auxiliary pipe at the side grout outlet through the baffle plate, so that the effect of limiting soil from entering the auxiliary pipe is realized; after pile sinking is finished, concrete grout is poured into the auxiliary pipe from the grout inlet, the grouting degree is observed at the opening of the auxiliary pipe, the concrete grout flows into the auxiliary pipe from the main pipe and overflows to the opening of the auxiliary pipe from bottom to top, the auxiliary pipe is filled with the concrete grout, and the concrete grout can flow out from the side grout outlet and the lower grout outlet; through adjusting part drive support for be convenient for remove the baffle, the concrete thick liquid flows into the soil body from the side grout outlet, utilizes a plurality of auxiliary pipes all to be provided with the side grout outlet, realizes increasing concrete thick liquid and soil body bonding area, realizes the effect of reinforcing pile body support ability.

Further setting the following steps: the side grout outlet faces the bottom end of the pile body and is obliquely arranged downwards.

Through adopting above-mentioned technical scheme, the axial of side grout outlet is set up towards the bottom and the slant of the pile body down, reduces pile body week side earth and falls into the grout outlet to be favorable to the concrete thick liquid to flow into the soil body along side grout outlet.

Further setting the following steps: the distance between two adjacent baffles is not less than the size of the side slurry outlet.

Through adopting above-mentioned technical scheme for when the baffle moved the position between two adjacent side grout outlets, avoid the baffle overlength so that keep off and separate side grout outlet, the concrete thick liquid of being convenient for flows.

Further setting the following steps: the pile body in the inner wall of auxiliary pipe is seted up and is used for the support is along the spout of the T type that the axial slided, the spout in the pile body upper end sets up for running through, fixedly connected with on the support with the draw runner of spout butt.

By adopting the technical scheme, the slide bar is positioned in the T-shaped sliding groove and is low-grade with the inner wall of the sliding groove, so that the baffle on the bracket is abutted against the inner wall of the auxiliary pipe, and the effects of blocking the side slurry outlet and limiting the soil from entering the auxiliary pipe are achieved; after the auxiliary pipe is filled with concrete grout, the lifting support drives the baffle to be far away from the lateral grout outlet, and the support slides in the sliding groove, so that the effect of facilitating moving the support is achieved.

Further setting the following steps: the lower bottom end of the pile body is provided with a lower grout outlet which is communicated with the auxiliary pipe and a soil body, the support is fixedly connected with a cover plate at the lower grout outlet, and the cover plate is abutted to the pile body.

Through adopting above-mentioned technical scheme, prevent the soil body to get into the auxiliary pipe through the apron in grout outlet department down, concrete thick liquid downside grout outlet flows in the soil body, and the support drives the baffle simultaneously and the apron removes and is convenient for drive baffle and apron, utilizes a plurality of auxiliary pipe diapire departments all to be provided with down grout outlet, increases concrete thick liquid and soil body bonding area, strengthens the effect of pile body support capacity.

Further setting the following steps: the adjusting component comprises a base and an adjusting screw rod, the base is fixed at the upper end of the pile body, the adjusting screw rod is connected with the base in a rotating mode, the adjusting screw rod is connected with an adjusting block in a threaded mode, an axial direction is arranged in the adjusting block in a penetrating mode, the axial direction of the adjusting screw rod is parallel to the axial direction of the adjusting screw rod, the adjusting block is fixedly connected with the upper end of the support.

Through adopting above-mentioned technical scheme, rotating accommodate the lead screw on the base behind the pile sinking, the regulating block removes through threaded connection on accommodate the lead screw, the circumferential motion of locating lever restriction regulating block for the regulating block moves along the direction that the pile body was kept away from to the axial orientation of pile body in accommodate the lead screw, the regulating block drives the support upward movement, the support drives baffle and apron and shifts up to respectively with the separation of side grout outlet and lower grout outlet, realize convenient removal and the effect of fixed a plurality of baffles and apron.

Further setting the following steps: the upper end fixedly connected with double-screw bolt of support, the double-screw bolt passes regulating block threaded connection has the nut, the regulating block with the support butt.

Through adopting above-mentioned technical scheme, pass the regulating block with the double-screw bolt of the upper end of support before the pile sinking for the lower extreme and the support butt of regulating block rotate the nut and make nut and double-screw bolt threaded connection and compress tightly fixed bolster and regulating block, realize the effect fixed with support and regulating block.

Further setting the following steps: the adjusting screw rod is fixedly connected with a handle.

Through adopting above-mentioned technical scheme, make accommodate the lead screw rotate along accommodate the lead screw's axial on the base through turning handle, realize being convenient for to rotate accommodate the effect of lead screw.

To sum up, the utility model discloses a beneficial technological effect does:

(1) the baffle and the cover plate prevent soil from entering the auxiliary pipe at the side grout outlet and the lower grout outlet, so that the effect of limiting soil from entering the auxiliary pipe is realized.

(2) Utilize accommodate the lead screw and locating lever to make regulating block and support upward movement, the support drives baffle and apron and shifts up to separate with side grout outlet and lower grout outlet respectively, realizes the effect of convenient removal and fixed a plurality of baffles and apron.

(3) The concrete slurry flows into the auxiliary pipe from the main pipe, so that the concrete slurry is favorably bonded with the soil body, and the effect of strengthening the supporting capacity of the pile body is realized.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is an isometric schematic view of the present invention;

fig. 3 is an exploded view of the pile body and the support of the present invention;

FIG. 4 is an enlarged view at A in FIG. 1;

fig. 5 is a front view of the present invention;

fig. 6 is a sectional view taken along B-B in fig. 5.

Reference numerals: 1. a pile body; 2. a main pipe; 3. a secondary pipe; 4. a side slurry outlet; 5. a pulp inlet; 6. a baffle plate; 7. a lower pulp outlet; 8. a cover plate; 9. a support; 10. a chute; 11. a slide bar; 12. a base; 13. adjusting the screw rod; 14. an adjusting block; 15. positioning a rod; 16. a nut; 17. a handle; 18. a stud.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Refer to fig. 5 and fig. 6, for the utility model discloses a precast pile can slip casting, including pile body 1, the looped pipeline 3 of being responsible for 2 and four and being responsible for 2 bottom intercommunications has been seted up in pile body 1, it is the opening setting with looped pipeline 3 in pile body 1's upper end to be responsible for 2, be responsible for 2 and pile body 1 coaxial setting, looped pipeline 3's axial and pile body 1's axial parallel, the upper end opening part of being responsible for 2 sets up to into thick liquid mouth 5, the perisporium of looped pipeline 3 is equidistant four side grout outlets 4 with the soil body intercommunication of seting up along the axis direction, side grout outlet 4 axial is set up under the bottom of pile body 1 and the slant, the axis of side grout outlet 4 is 45 with the contained angle of horizontal plane.

Referring to fig. 1 and 3, the equal sliding connection of perisporium of four auxiliary pipes 3 has support 9, pile body 1 offers the spout 10 that is used for the support 9 to slide along the axial T type in the inner wall of auxiliary pipe 3, spout 10 sets up for the opening in pile body 1 upper end, fixedly connected with and the draw runner 11 of spout 10 butt on the support 9, the upper end of support 9 is located the outside of the opening part of auxiliary pipe 3, support 9 is in side grout outlet 4 fixedly connected with baffle 6, the distance between two adjacent baffles 6 is not less than side grout outlet 4 along axial length, the lower grout outlet 7 (refer to fig. 2) of intercommunication auxiliary pipe 3 and soil body is seted up to the lower bottom end of pile body 1, support 9 is in lower grout outlet 7 fixedly connected with apron 8, the week side and pile body 1 butt of apron 8.

Referring to fig. 2 and 3, when pile body 1 sinks, support 9 makes baffle 6 and apron 8 all with the inner wall butt of auxiliary pipe 3, baffle 6 prevents the soil body in side grout outlet 4 department and gets into auxiliary pipe 3, the axial of side grout outlet 4 is set up downwards towards the bottom of pile body 1 and slant, prevent that pile body 1 week side earth from falling into side grout outlet 4, apron 8 prevents soil body entering auxiliary pipe 3 in grout outlet 7 department down, the realization restricts the effect that earth gets into auxiliary pipe 3.

Referring to fig. 2 and 3, after pile sinking is completed, concrete grout is poured from the grout inlet 5, the concrete grout flows into the secondary pipe 3 from the main pipe 2, the concrete grout fills the secondary pipe 3 from bottom to top, when concrete grout overflows to the opening of the auxiliary pipe 3, the support 9 is pulled upwards outside the opening of the auxiliary pipe 3, the stretching length is the length of the baffle 6 in the vertical direction, the support 9 drives the baffle 6 to be displaced along the sliding groove 10 to be separated from the lateral grout outlet 4, meanwhile, the lower end of the bracket 9 drives the cover plate 8 to move upwards along the vertical direction and is lower than the corner of the main pipe 2 communicated with the auxiliary pipe 3, so that space is provided for concrete slurry to flow out from the side slurry outlet 4 and the lower slurry outlet 7, the concrete slurry can flow out from the side slurry outlet 4 and the lower slurry outlet 7, the concrete grout is bonded with the soil body at the lateral grout outlet 4 and the lower grout outlet 7, so that the connecting area of the pile body 1 and the soil body is increased, and the effect of strengthening the supporting capacity of the pile body 1 is realized.

Referring to fig. 3 and 4, in order to move and fix a plurality of baffles 6 and cover plates 8 simultaneously, an adjusting assembly for adjusting the baffles 6 and the cover plates 8 is arranged between an opening at the upper end of each of the four auxiliary pipes 3 and the support 9 of the pile body 1, the adjusting assembly comprises a base 12 and an adjusting screw 13, the base 12 is fixed at the upper end of the pile body 1, the adjusting screw 13 is rotatably connected with the base 12, the adjusting screw 13 is far away from a handle 17 fixedly connected with one end of the base 12, the adjusting screw 13 is in threaded connection with an adjusting block 14, an axial direction parallel to the adjusting screw 13 and a positioning rod 15 fixedly connected with the base 12 are arranged in the adjusting block 14 in a penetrating manner, a stud 18 is fixedly connected with the upper end of the support 9, the stud 18 is in threaded connection with a nut 16 through the.

Referring to fig. 3 and 4, the upper end of the support 9 passes through the adjusting block 14 before pile sinking, so that the lower end of the adjusting block 14 is abutted to the support 9, the nut 16 is rotated to enable the nut 16 to be in threaded connection with the stud 18, and the nut 16 compresses the fixing support 9 and the adjusting block 14, so that the effect of fixing the support 9 and the adjusting block 14 is realized, the handle 17 is rotated after pile sinking to enable the adjusting screw 13 to rotate, the positioning rod 15 limits the circumferential movement of the adjusting block 14, so that the adjusting block 14 moves in the direction of the adjusting screw 13 away from the pile body 1 along the axial direction of the pile body 1, the adjusting block 14 drives the support 9 to move upwards, the support 9 drives the baffle 6 and the cover plate 8 to move upwards to be separated from the lateral grout outlet 4 and the lower grout outlet 7 respectively, and the effects of conveniently moving and fixing the baffle 6 and.

The implementation principle and the beneficial effects of the embodiment are as follows:

before sinking the pile, the support 9 is fixed with the adjusting block 14 through the threaded connection of the nut 16 and the support 9, when the pile body 1 sinks, the slide bar 11 on the support 9 is positioned in the T-shaped sliding groove 10 to enable the baffle 6 to be abutted against the inner wall of the auxiliary pipe 3, the baffle 6 prevents the soil body from entering the auxiliary pipe 3 at the side grout outlet 4, and the cover plate 8 prevents the soil body from entering the auxiliary pipe 3 at the lower grout outlet 7, so that the effect of limiting the soil from entering the auxiliary pipe 3 is realized.

The rotating handle 17 drives the adjusting screw rod 13 to rotate after pile sinking, the adjusting block 14 drives the adjusting block 14 and the support 9 to move upwards in the adjusting screw rod 13 by utilizing the positioning rod 15, the support 9 drives the baffle 6 and the cover plate 8 to move upwards to be separated from the lateral slurry outlet 4 and the lower slurry outlet 7 respectively, and the effects of conveniently moving and fixing the baffle 6 and the cover plate 8 are achieved.

After the baffle 6 and the cover plate 8 are separated from the side grout outlet 4 and the lower grout outlet 7 respectively, concrete grout is poured into the side grout outlet 5, and the concrete grout flows into the auxiliary pipe 3 through the main pipe 2, so that the concrete grout flows into a soil body from the side grout outlet 4 to the lower grout outlet 7 from bottom to top, and the effect of facilitating the bonding of the concrete grout and the soil body to strengthen the supporting capacity of the pile body 1 is realized.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (8)

1. The utility model provides a precast pile can slip casting which characterized in that: comprises a pile body (1), a main pipe (2) and a plurality of auxiliary pipes (3) communicated with the bottom end of the main pipe (2) are arranged in the pile body (1), the main pipe (2) and the auxiliary pipe (3) are arranged at the upper end of the pile body (1) in an opening way, the axial directions of the main pipe (2) and the auxiliary pipe (3) are both parallel to the axial direction of the pile body (1), the upper end opening of the main pipe (2) is provided with a grout inlet (5), the peripheral wall of the auxiliary pipe (3) is provided with a plurality of side grout outlets (4) communicated with the soil body at equal intervals along the axial direction, the peripheral walls of the auxiliary pipes (3) are all connected with a bracket (9) in a sliding way, the bracket (9) is fixedly connected with a baffle (6) at the side grout outlet (4), an adjusting component used for adjusting the position of the baffle (6) is arranged between the upper end of the support (9) and the pile body.

2. A groutable precast pile as recited in claim 1, wherein: the distance between two adjacent baffles (6) is not less than the size of the side slurry outlet (4).

3. A groutable precast pile as recited in claim 2, wherein: pile body (1) in the inner wall of auxiliary pipe (3) is seted up and is used for support (9) are along the spout (10) of the T type that the axial slided, spout (10) in pile body (1) upper end sets up for running through, fixedly connected with on support (9) with draw runner (11) of spout (10) butt.

4. A groutable precast pile as recited in claim 3, wherein: the adjusting part comprises a base (12) and an adjusting screw rod (13), the base (12) is fixed on the upper end of the pile body (1), the adjusting screw rod (13) is connected with the base (12) in a rotating mode, an adjusting block (14) is connected with the adjusting screw rod (13) through threads, an axial direction is arranged in the adjusting block (14) in a penetrating mode, the adjusting screw rod (13) is axially parallel to the positioning rod (15) of the base (12) in a parallel mode, and the adjusting block (14) is fixedly connected with the upper end of the support (9).

5. A groutable precast pile as recited in claim 4, wherein: the side grout outlet (4) faces the bottom end of the pile body (1) and is obliquely arranged downwards.

6. A groutable precast pile as recited in claim 5, wherein: the lower bottom end of the pile body (1) is provided with a lower grout outlet (7) communicated with the auxiliary pipe (3) and a soil body, the support (9) is fixedly connected with a cover plate (8) at the lower grout outlet (7), and the cover plate (8) is abutted to the pile body (1).

7. A groutable precast pile as recited in claim 6, wherein: the upper end of the support (9) is fixedly connected with a stud (18), the stud (18) penetrates through the adjusting block (14) and is connected with a nut (16) in a threaded mode, and the adjusting block (14) is abutted to the support (9).

8. A groutable precast pile as recited in claim 7, wherein: the adjusting screw rod (13) is fixedly connected with a handle (17).

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