CN112921966B

CN112921966B - Device for ensuring pile end of precast pile to enter bearing stratum and construction method thereof

Info

Publication number: CN112921966B
Application number: CN202110090891.4A
Authority: CN
Inventors: 赵春; 胡乐; 李勍
Original assignee: China Europe International Construction Group Ltd
Current assignee: China Europe International Construction Group Ltd
Priority date: 2021-01-22
Filing date: 2021-01-22
Publication date: 2022-02-11
Anticipated expiration: 2041-01-22
Also published as: CN112921966A

Abstract

The application relates to a construction device and a construction method thereof for ensuring that the pile end of a precast pile enters a bearing stratum, wherein the construction device comprises a base, a plurality of self-locking universal wheels are arranged on one side of the base, which is opposite to the ground, a positioning hole for the precast pile to pass through is formed in the base, and the diameter of the positioning hole is larger than the diameter of the precast pile; a vertical hammering device is arranged on the base and used for hammering the precast pile into the bearing layer vertically and downwards; the base is also provided with an offset correcting device, and the offset correcting device is used for correcting the pile body of the precast pile when the precast pile is offset; still be provided with on the base and correct the contrast device, correct the contrast device and be used for weighing the pile body position of precast pile after the precast pile skew is corrected. The method has the effect of improving the problem that the pile body of the precast pile inclines when the precast pile is hammered into the bearing stratum, so that the implantation efficiency is low.

Description

Device for ensuring pile end of precast pile to enter bearing stratum and construction method thereof

Technical Field

The application relates to the field of precast pile construction technology, in particular to a device for ensuring that a pile end of a precast pile enters a bearing stratum and a construction method thereof.

Background

In the civil engineering structure design, when a foundation is designed, a soil layer directly bearing a foundation load is called a bearing layer. In soil mechanics calculation, the pressure applied to the supporting layer is continuously reduced, the pressure can be ignored after a plurality of depths are reached, and the specific depth is known through calculation. This part that is subjected to pressure is called the holding layer, and the part below the holding layer is called the subfloor. That is, the support layer and the underlying layer are different depending on the load. Therefore, when the precast pile is transplanted into the ground, the stability of the precast pile can be ensured only by moving the precast pile into the bearing layer, and the general precast pile is driven by a hammer pile driver.

In view of the above-mentioned related technologies, the inventor believes that the body of the precast pile may be inclined in the process of entering the bearing stratum through the hammer pile driver, which may result in a large difference between the precast pile and the predetermined position. At this time, the precast pile needs to be taken out of the ground again and then hammered again, thereby reducing the implantation efficiency of the precast pile.

Disclosure of Invention

In order to solve the problem that the implantation efficiency is low due to the fact that a pile body of a precast pile inclines when the precast pile is hammered into a bearing stratum, the application provides a device for ensuring that the pile end of the precast pile enters the bearing stratum and a construction method of the device.

The application provides a device of guaranteeing precast pile stake end entering holding power layer adopts following technical scheme:

first aspect, this application provides a guarantee precast pile stake end and get into device on bearing layer, adopts following technical scheme:

a device for ensuring that the pile end of a precast pile enters a bearing layer comprises a base, wherein a plurality of self-locking universal wheels are arranged on one side of the base, which is opposite to the ground, a positioning hole for the precast pile to pass through is formed in the base, and the diameter of the positioning hole is larger than the diameter of the precast pile; the base is provided with a vertical hammering device, and the vertical hammering device is used for vertically hammering the precast pile downwards into the bearing layer; the base is also provided with an offset correcting device, and the offset correcting device is used for correcting the pile body of the precast pile when the precast pile is offset; still be provided with on the base and correct contrast device, correct contrast device and be used for weighing the pile body position of precast pile after the precast pile skew is corrected.

By adopting the technical scheme, the base is pushed, so that the positioning hole in the base is opposite to the ground where the pile needs to be planted in the vertical direction, then the precast pile is placed in the positioning hole, and the precast pile is gradually hammered into the ground through the vertical hammering device; after one section of the precast pile enters the ground, firstly, hammering is stopped, the precast pile is measured through a correction comparison device, and whether the precast pile is in a vertical state or not is judged; if the precast pile is not in the vertical state, hammering the deviated side of the precast pile through the deviation correcting device; after hammering, measuring the precast pile by the correction comparison device again, and if the precast pile is in a vertical state, continuously hammering the precast pile into the ground until the precast pile reaches a bearing stratum; after the arrangement, the precast pile can be normally hammered into the bearing stratum under the condition that the precast pile is ensured not to have too large deviation, and the precast pile does not need to be directly taken out again when the precast pile has deviation, so that the problem of low implantation efficiency caused by the inclination of the pile body when the precast pile is hammered into the bearing stratum is solved.

Optionally, vertical hammering device includes lifting unit and beats the subassembly, beat the subassembly and install on lifting unit, lifting unit installs on the base, beat the subassembly and be used for hammering the top of precast pile, lifting unit is used for the drive to beat the subassembly and goes up and down in vertical direction.

Through adopting above-mentioned technical scheme, directly will beat the subassembly through lifting unit and remove the top of spud to the top, just so can let and beat the subassembly and exert oneself downwards in vertical direction and hammer the precast pile into ground to reach the convenience and hammer the precast pile into the below-ground effect.

Optionally, the hammering assembly comprises a hammering block and a hydraulic cylinder; the lifting assembly comprises a rotating motor, a threaded rod, a lifting plate and a guide rod, the threaded rod is vertically and rotatably arranged on the base, the rotating motor is arranged on the base, an output shaft of the rotating motor is perpendicular to the threaded rod, a driving bevel gear is arranged at the end part of the output shaft of the rotating motor, and a driven bevel gear meshed with the driving bevel gear is coaxially arranged on the threaded rod; the vertical setting of guide bar is on the base, the locating hole is located between guide bar and the threaded rod, the lifter plate is in between threaded rod and the guide bar and is located the top of locating hole, one side of lifter plate is provided with the screw thread lantern ring with threaded rod screw-thread fit, opposite side is provided with the guide cylinder that slides and cup joints with the guide bar, the pneumatic cylinder sets up on the lifter plate and the vertical downwardly extending of piston rod of pneumatic cylinder, the hammering piece sets up the tip of pneumatic cylinder and just to being in the precast pile in the locating hole in vertical direction.

Through adopting above-mentioned technical scheme, at first start the rotation motor, make the driven bevel gear who rotates on the motor output shaft drive the threaded rod rotate, thereby make the threaded rod begin to rotate, because the screw thread lantern ring and the threaded rod screw-thread fit on the lifter plate, consequently, the lifter plate can remove along the length direction of threaded rod, and then let the lifter plate vertically shift up to the top of precast pile, then start the hydraulic cylinder, make the piston rod area of pneumatic cylinder hammering piece vertical downwardly extending, let the pneumatic cylinder area hammering piece vertically shift down, thereby the top of precast pile is arrived in the hammering, let the precast pile receive the pressure of hammering piece and move down, thereby reach the comparatively convenient effect of hammering precast pile.

Optionally, a telescopic cylinder is arranged on the lifting plate, the hydraulic cylinder and the hammering block are both located in the telescopic cylinder, the telescopic cylinder is formed by slidably connecting a plurality of sleeves, an anti-dropping part is arranged between every two adjacent sleeves and used for preventing the two adjacent sleeves from being separated, and silencing plates are covered on the inner walls of the sleeves; keep away from on the lifter plate sleeve tip is provided with the rubber turn-ups, the rubber turn-ups is used for laminating mutually with the lateral wall of precast pile.

Through adopting above-mentioned technical scheme, extend the telescopic tube, thereby just can slide each other between a plurality of sleeves, elongate the telescopic tube, the telescopic tube that elongates this moment can cover the top of hammering piece and precast pile, turn over the rubber turn-ups from the sleeve again, make the surface of rubber turn-ups laminating at the precast pile, and under the adding of the acoustical panel of sleeve inside holds, the hammering piece can be kept apart with the external world of telescopic tube at the produced noise of hammering precast pile, thereby reduce the noise that the hammering piece produced when hammering the precast pile, reach the effect of making an uproar of falling.

Optionally, the anticreep piece includes anticreep flange and anticreep chimb, the anticreep flange sets up at telescopic one side open edge, the anticreep chimb sets up the open edge at the sleeve opposite side, anticreep flange on the sleeve and the anticreep chimb looks lock joint on the adjacent sleeve.

Through adopting above-mentioned technical scheme, the setting up of anticreep flange and anticreep chimb can let two adjacent sleeves be difficult for producing when sliding each other and break away from to reach and let the more stable effect of relative slip between two adjacent sleeves.

Optionally, the offset correcting device includes a bracket, a servo motor, a winding wheel, a nylon rope, a swinging rod and a pendulum bob, the bracket is rotatably disposed on the base, the servo motor is mounted on the bracket, the winding wheel is coaxially disposed on an output shaft of the servo motor, and the nylon rope is wound on the winding wheel; the swinging rod is rotatably arranged on one side, close to the positioning hole, of the support, the pendulum bob is arranged at one end, far away from the support, of the swinging rod, and the nylon rope is connected with one side, far away from the positioning hole, of the pendulum bob.

By adopting the technical scheme, when the deviated precast pile needs to be corrected, the support is rotated to the deviated side of the precast pile, then the servo motor is started, the servo motor drives the wire coiling wheel to rotate, the nylon rope is wound on the wire coiling wheel, the nylon rope is shortened at the moment, and the pendulum bob is pulled to move towards the side close to the support; then the servo motor is rotated in the reverse direction, so that the nylon rope on the winding wheel is rapidly released, the pendulum bob is not subjected to the pulling force of the nylon rope any longer, the swinging rod can drive the pendulum bob to freely swing downwards, and the prefabricated pile is knocked on the pile wall of the prefabricated pile, so that the prefabricated pile is subjected to knocking force from the side surface to gradually change the self state; through continuously knocking the pile wall of the precast pile, one side of the precast pile, which is deviated, is gradually knocked to be straight, so that the effect of conveniently and visually correcting the deviated precast pile is achieved.

Optionally, a top plate is arranged on the support, two vertical plates are arranged on the top plate, the winding wheel is rotatably arranged between the two vertical plates, a sliding groove is arranged on the top plate, the length direction of the sliding groove is consistent with the length direction of an output shaft of the servo motor, a sliding plate is arranged on the top plate in a sliding manner, the servo motor is arranged on the sliding plate, a sliding block is arranged on the sliding plate, and the sliding block is in sliding fit with the top plate through the sliding groove; the winding device is characterized in that a circular insertion rod is coaxially connected to an output shaft of the servo motor, a circular insertion cylinder with an opening at one side is arranged at the end part of the winding wheel, the circular insertion rod is in insertion fit with the circular insertion cylinder, an L-shaped abutting plate is further arranged on the output shaft of the servo motor, a abutted plate is arranged on the outer wall of the circular insertion cylinder, after the circular insertion rod is inserted into the circular insertion cylinder, one section of the L-shaped abutting plate is positioned on the outer wall of the circular insertion cylinder, and the L-shaped abutting plate is used for abutting against the abutted plate in the circumferential direction of the circular insertion cylinder; the top plate is further provided with an air cylinder, and the air cylinder is used for driving the sliding plate to slide along the length direction of the sliding groove.

By adopting the technical scheme, when the pendulum bob needs to be pulled to move in the direction far away from the precast pile, the cylinder is started to push the sliding plate to move towards the side close to the winding wheel, so that the circular insertion rod on the output shaft of the servo motor is inserted into the circular insertion cylinder on the winding wheel, and one section of the L-shaped abutting plate is positioned on the outer wall of the circular insertion cylinder; starting the servo motor to enable an output shaft of the servo motor to drive the circular insertion rod to rotate, and enabling the L-shaped abutting plate to rotate along with the circular insertion rod so as to be attached to the abutted plate; at the moment, under the condition that the circular inserting rod continues to rotate, the L-shaped abutting plate can push the abutted plate to rotate in the circumferential direction of the circular inserting rod, so that the circular inserting cylinder and the winding wheel are driven to rotate, and the nylon rope is wound under the condition that the winding wheel rotates; when the pulling force control that breaks away from the pendulum bob nylon rope when needs, the direct start cylinder for the slide moves toward keeping away from the reel wheel side, and circular inserted bar just can break away from in the circular inserted tube, and at this moment under the pulling of pendulum bob self weight, the nylon rope can be automatic emits on the take-up reel, and the take-up reel also can rotate by oneself, thereby let the pendulum bob on the lateral wall of automatic hammer to the precast pile under the swing of rocking arm, and then reach the effect that lets the pendulum bob more effectively hammer the precast pile.

Optionally, an annular groove is formed in the base, the circle center of the annular groove and the circle center of the positioning hole are located at the same point, an annular plate is arranged at the lower end of the support, and the annular plate is placed in the annular groove and rotates relative to the annular groove.

Through adopting above-mentioned technical scheme, when needing to adjust the position of support on the base, directly promote the support around the circumferential direction of locating hole, the annular plate can the rotation in the ring channel this moment to make the support can easily adjust the position on the base.

Optionally, the correction comparison device includes a sliding bar and a measuring rod, the base is provided with a sliding groove, the length direction of the sliding groove is parallel to one diameter direction of the positioning hole, the sliding bar is placed in the sliding groove and is in sliding fit with the sliding groove, the measuring rod is hinged to the end portion of the sliding bar close to the positioning hole, the end portion of the sliding bar is vertically provided with a guide sheet, and the end portion of the measuring rod is provided with an accommodating notch; when the measuring rod rotates to a vertical state, the guide piece is positioned in the accommodating notch and attached to the inner side wall of the accommodating notch.

Through adopting above-mentioned technical scheme, when carrying out the skew measurement to the precast pile, directly promote the slip to the direction that is close to the locating hole, make the guide vane laminating of slip tip on the precast pile surface, rotate the measuring stick again after that, make the breach that holds on the measuring stick be close to the guide vane, and let the lateral wall laminating of guide vane on the inside wall that holds the breach, the measuring stick just is in vertical state this moment, survey the lateral wall of measuring stick and precast pile, at this moment, if the offset between the lateral wall of discovery precast pile and the measuring stick is great, then show that the precast pile has taken place the skew, thereby reach the comparatively convenient effect of measuring the precast pile skew.

In a second aspect, the application provides a construction method for ensuring that a pile end of a precast pile enters a bearing stratum, which adopts the following technical scheme:

a construction method for ensuring that the pile end of a precast pile enters a bearing stratum comprises the following steps:

a positioning step: pushing the base to enable the positioning hole in the base to be opposite to the ground surface needing pile planting in the vertical direction, and enabling the central axis of the precast pile to be coincident with the central axis of the positioning hole;

a hammering step: lifting the lifting plate above the pile top of the precast pile, and knocking the precast pile through a vertical hammering device to enable the precast pile to gradually sink in the positioning hole;

a measurement step: pushing the sliding strip to the side of the precast pile close to the positioning hole, so that the measuring rod is attached to the pile wall of the precast pile, and checking the deviation of the measuring rod and the precast pile in the vertical direction; if the measuring rod is not completely attached to the surface of the precast pile, the precast pile has deviation; if the measuring rod is completely attached to the surface of the precast pile, the precast pile has no large deviation;

deviation rectifying: carry out the hammering to one side of precast pile skew through the pendulum, exert external force and let the precast pile ajust, it can to repeat the measuring step again after the hammering.

In summary, the present application includes at least one of the following beneficial technical effects:

pushing the base to enable the positioning hole in the base to be opposite to the ground needing pile planting in the vertical direction, then putting the precast pile into the positioning hole, and gradually hammering the precast pile into the ground through the vertical hammering device; after one section of the precast pile enters the ground, firstly, hammering is stopped, the precast pile is measured through a correction comparison device, and whether the precast pile is in a vertical state or not is judged; if the precast pile is not in the vertical state, hammering the deviated side of the precast pile through the deviation correcting device; after hammering, measuring the precast pile by the correction comparison device again, and if the precast pile is in a vertical state, continuously hammering the precast pile into the ground until the precast pile reaches a bearing stratum; after the arrangement, the precast pile can be hammered into the bearing stratum normally under the condition that the precast pile is ensured not to have too large deviation, and the precast pile does not need to be directly taken out again when the precast pile has deviation, so that the problem of low implantation efficiency caused by inclination of the pile body when the precast pile is hammered into the bearing stratum is solved;

when the pendulum bob needs to be pulled to move in the direction far away from the precast pile, the cylinder is started to push the sliding plate to move towards the side close to the winding wheel, so that the circular insertion rod on the output shaft of the servo motor is inserted into the circular insertion cylinder on the winding wheel, and one section of the L-shaped abutting plate is positioned on the outer wall of the circular insertion cylinder; starting the servo motor to enable an output shaft of the servo motor to drive the circular insertion rod to rotate, and enabling the L-shaped abutting plate to rotate along with the circular insertion rod so as to be attached to the abutted plate; at the moment, under the condition that the circular inserting rod continues to rotate, the L-shaped abutting plate can push the abutted plate to rotate in the circumferential direction of the circular inserting rod, so that the circular inserting cylinder and the winding wheel are driven to rotate, and the nylon rope is wound under the condition that the winding wheel rotates; when the pendulum bob needs to be separated from the tension control of the nylon rope, the cylinder is directly started, so that the sliding plate moves towards the side far away from the winding wheel, the circular inserted rod can be separated from the circular inserted cylinder, the nylon rope can be automatically discharged from the winding wheel under the pulling of the weight of the pendulum bob, the winding wheel can automatically rotate, the pendulum bob can automatically hammer to the side wall of the precast pile under the swinging of the swinging rod, and the effect of hammering the precast pile more effectively by the pendulum bob is achieved;

pushing the sliding strip to the side of the precast pile close to the positioning hole, so that the measuring rod is attached to the pile wall of the precast pile, and checking the deviation of the measuring rod and the precast pile in the vertical direction; if the measuring rod is not completely attached to the surface of the precast pile, the precast pile has deviation; if the measuring rod is completely attached to the surface of the precast pile, the precast pile has no large deviation.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present application.

FIG. 2 is a partial cross-sectional view of an embodiment of the present application after concealing an annular plate.

Fig. 3 is an enlarged view of a portion a in fig. 2.

Fig. 4 is a schematic partial explosion diagram for illustrating an offset correction apparatus according to an embodiment of the present application.

FIG. 5 is a partial schematic view of an embodiment of the present application showing a correction contrast device.

Description of reference numerals: 1. a base; 11. a self-locking universal wheel; 12. positioning holes; 13. an annular groove; 14. a sliding groove; 2. a vertical hammering device; 21. a lifting assembly; 211. rotating the motor; 2111. a drive bevel gear; 212. a threaded rod; 2121. a driven bevel gear; 213. a lifting plate; 2131. a threaded collar; 2132. a guide cylinder; 214. a guide bar; 22. a hammering assembly; 221. hammering the block; 222. a hydraulic cylinder; 3. an offset correcting means; 31. a support; 3311. an annular plate; 32. a servo motor; 321. a circular inserted link; 322. an L-shaped resisting plate; 33. a winding wheel; 331. a circular cartridge; 3311. a supported plate; 34. a nylon cord; 35. a rocking bar; 351. an accommodation notch; 36. a pendulum bob; 4. a correction comparing device; 41. a slide bar; 411. a guide piece; 42. a measuring rod; 5. a telescopic cylinder; 51. a sleeve; 511. a sound-absorbing panel; 512. rubber flanging; 6. a drop-off prevention member; 61. an anti-drop flange; 62. an anti-drop convex edge; 7. a top plate; 71. a vertical plate; 72. a chute; 73. a slide plate; 731. a slider; 74. and a cylinder.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses a device for ensuring that a pile end of a precast pile enters a bearing stratum. Referring to fig. 1, the device for ensuring that the pile end of the precast pile enters the bearing layer comprises a base 1, wherein one side of the base 1, which is opposite to the ground, is provided with a plurality of self-locking universal wheels 11, the base 1 is provided with a positioning hole 12 for the precast pile to pass through, the positioning hole 12 is circular, and the aperture of the positioning hole 12 is larger than the diameter of the precast pile; the base 1 is provided with a vertical hammering device 2, and the vertical hammering device 2 is used for vertically hammering the precast pile downwards into the bearing layer; the base 1 is also provided with an offset correcting device 3, and the offset correcting device 3 is used for correcting the pile body of the precast pile when the precast pile is offset; still be provided with on the base 1 and correct contrast device 4, correct contrast device 4 and be used for weighing the pile body position of precast pile after the precast pile skew is corrected.

As shown in fig. 1 and 2, the vertical hammering device 2 comprises a lifting assembly 21 and a hammering assembly 22, wherein the hammering assembly 22 is mounted on the lifting assembly 21, and the lifting assembly 21 is mounted on the base 1; hammering assembly 22 is used to hammer the top end of the precast pile, and lifting assembly 21 is used to drive hammering assembly 22 to lift in the vertical direction. Specifically, the hammering assembly 22 comprises a hammering block 221 and a hydraulic cylinder 222, and the lifting assembly 21 comprises a rotating motor 211, a threaded rod 212, a lifting plate 213 and a guide rod 214; the threaded rod 212 is vertically and rotatably arranged on the base 1, namely a rolling bearing is welded on the base 1, and one end of the threaded rod 212 penetrates through an inner ring of the rolling bearing and is in interference fit with the rolling bearing; the rotating motor 211 is bolted on the base 1, an output shaft of the rotating motor 211 is perpendicular to the threaded rod 212, a driving bevel gear 2111 is welded at the end part of the output shaft of the rotating motor 211, and a driven bevel gear 2121 meshed with the driving bevel gear 2111 is coaxially welded on the threaded rod 212; the guide rod 214 is vertically welded on the base 1, the positioning hole 12 is positioned between the guide rod 214 and the threaded rod 212, the plate surface of the lifting plate 213 is rectangular, and the lifting plate 213 is positioned between the threaded rod 212 and the guide rod 214 and above the positioning hole 12; a threaded lantern ring 2131 in threaded fit with the threaded rod 212 is welded on one side of the lifting plate 213, and a guide cylinder 2132 in sliding sleeve connection with the guide rod 214 is welded on the other side of the lifting plate 213; the hydraulic cylinder 222 is bolted on the lifting plate 213, a piston rod of the hydraulic cylinder 222 extends vertically downwards, and the hammering block 221 is welded at the end of the hydraulic cylinder 222 and is opposite to the precast pile in the positioning hole 12 in the vertical direction.

Firstly, the rotating motor 211 is started, so that the driving bevel gear 2111 on the output shaft of the rotating motor 211 drives the driven bevel gear 2121 on the threaded rod 212 to rotate, and the threaded rod 212 starts to rotate, because the threaded lantern ring 2131 on the lifting plate 213 is in threaded fit with the threaded rod 212, the lifting plate 213 can move along the length direction of the threaded rod 212, and further the lifting plate 213 vertically moves upwards to the upper part of the precast pile, and then the hydraulic cylinder 222 is started, so that the piston rod of the hydraulic cylinder 222 drives the hammering block 221 to vertically extend downwards, and the hydraulic cylinder 222 drives the hammering block 221 to vertically move downwards, so that the top of the precast pile is hammered, and the precast pile is pressed downwards by the hammering block 221, and therefore the effect that the precast pile is hammered conveniently is achieved.

As shown in fig. 2 and 3, the telescopic tube 5 is welded to the surface of the lifting plate 213 facing the ground, and the hydraulic cylinder 222 and the hammer block 221 are both located in the telescopic tube 5. The telescopic tube 5 is formed by slidably connecting a plurality of sleeves 51, that is, the sleeves 51 are gradually reduced in diameter when viewed from top to bottom. The anti-disengaging part 6 is arranged between the adjacent sleeves 51, the anti-disengaging part 6 is used for preventing the adjacent two sleeves 51 from disengaging, namely, the anti-disengaging part 6 comprises an anti-disengaging flange 61 and an anti-disengaging flange 62, the anti-disengaging flange 61 is welded on the opening edge of one side of the sleeve 51, namely, the anti-disengaging flange 61 is welded around the opening edge of the sleeve 51; similarly, the anti-slip flange 62 is welded to the opening edge on the other side of the sleeve 51 in one circle, and the anti-slip flange 61 on the sleeve 51 is fastened to the anti-slip flange 62 on the adjacent sleeve 51 in the vertical direction; the retaining flange 61 and the retaining flange 62 are provided so that the adjacent two sleeves 51 are not easily separated from each other when they slide against each other. The inner wall of the sleeve 51 is bonded with a sound-absorbing plate 511; the end of the sleeve 51 far away from the lifting plate 213 is welded with a rubber flange 512, the rubber flange 512 is also an annular closed body, and the rubber flange 512 is used for being attached to the side wall of the precast pile.

Stretch telescopic tube 5 to just can slide each other between a plurality of sleeves 51, stretch telescopic tube 5, the telescopic tube 5 that elongates this moment can cover hammering piece 221 and the top of precast pile, turn over rubber turn-ups 512 from sleeve 51 again, make the surface of rubber turn-ups 512 laminating at the precast pile, and under the holding of the inside acoustical panel 511 of sleeve 51, the noise that hammering piece 221 produced at the hammering precast pile can be kept apart with telescopic tube 5's the external world.

As shown in fig. 2 and 4, the deviation correcting device 3 comprises a bracket 31, a servo motor 32, a winding wheel 33, a nylon rope 34, a swinging rod 35 and a pendulum bob 36, wherein the bracket 31 is rotatably arranged on the base 1; referring to fig. 1, the base 1 is provided with an annular groove 13, a circle center of the annular groove 13 is located at the same point as a circle center of the positioning hole 12, the lower end of the bracket 31 is welded with an annular plate 3311, and the annular plate 3311 is placed in the annular groove 13 and rotates relative to the annular groove 13. The servo motor 32 is connected on the bracket 31 through a bolt, the winding wheel 33 is coaxially welded on the output shaft of the servo motor 32, and the nylon rope 34 is wound on the winding wheel 33; the swinging rod 35 is rotatably arranged on one side, close to the positioning hole 12, of the support 31, the pendulum bob 36 is welded at one end, far away from the support 31, of the swinging rod 35, the nylon rope 34 and one side, far away from the positioning hole 12, of the pendulum bob 36 are clamped, and the clamping mode is clamping connection.

As shown in fig. 4, a top plate 7 is arranged on the support 31, two vertical plates 71 are arranged on the top plate 7, the winding wheel 33 is rotatably arranged between the two vertical plates 71, that is, rolling bearings are embedded in the vertical plates 71, and two ends of the winding wheel 33 penetrate through the rolling bearings and are in interference fit with the rolling bearings. The top plate 7 is also provided with a sliding chute 72, and the length direction of the sliding chute 72 is consistent with the length direction of the output shaft of the servo motor 32; a sliding plate 73 is arranged on the top plate 7 in a sliding manner, the servo motor 32 is connected to the sliding plate 73 through a bolt, a sliding block 731 is welded on the sliding plate 73, and the sliding block 731 is in sliding fit with the top plate 7 through a sliding groove 72; a circular insertion rod 321 is coaxially welded on an output shaft of the servo motor 32, a circular insertion cylinder 331 with an opening at one side is welded at the end part of the winding wheel 33, and the circular insertion rod 321 is in insertion fit with the circular insertion cylinder 331. An L-shaped resisting plate 322 is further welded on the output shaft of the servo motor 32, a resisted plate 3311 is welded on the outer wall of the circular insertion cylinder 331, after the circular insertion rod 321 is inserted into the circular insertion cylinder 331, a section of the L-shaped resisting plate 322 is positioned on the outer wall of the circular insertion cylinder 331, and the L-shaped resisting plate 322 is used for being abutted against the resisted plate 3311 in the circumferential direction of the circular insertion cylinder 331; the top plate 7 is further connected with an air cylinder 74 through a bolt, the extending direction of a piston rod of the air cylinder 74 is consistent with the length direction of the sliding groove 72, one end of the air cylinder 74 is welded with one end, away from the winding wheel 33, of the sliding plate 73, and the air cylinder 74 is used for driving the sliding plate 73 to slide along the length direction of the sliding groove 72.

When the deviated precast pile needs to be corrected, firstly, when the pendulum bob 36 is pulled to move away from the precast pile, the cylinder 74 is started, the cylinder 74 pushes the sliding plate 73 to move towards the side close to the winding roll 33, so that the circular insertion rod 321 on the output shaft of the servo motor 32 is inserted into the circular insertion cylinder 331 on the winding roll 33, and one section of the L-shaped resisting plate 322 is positioned on the outer wall of the circular insertion cylinder 331; at this time, the servo motor 32 is started, so that the output shaft of the servo motor 32 drives the circular insertion rod 321 to rotate, and the L-shaped abutting plate 322 also rotates along with the circular insertion rod 321, so as to be attached to the abutted plate 3311; at this time, under the condition that the circular insertion rod 321 continues to rotate, the L-shaped resisting plate 322 pushes the resisted plate 3311 to rotate in the circumferential direction of the circular insertion rod 321, so as to drive the circular insertion cylinder 331 and the winding wheel 33 to rotate, and at this time, the nylon rope 34 is wound under the condition that the winding wheel 33 rotates; when pendulum 36 is required to be separated from the tension control of nylon rope 34, cylinder 74 is directly started, so that sliding plate 73 moves away from winding wheel 33, circular inserted bar 321 can be separated from circular inserted cylinder 331, at the moment, under the pulling of pendulum 36 self-weight, nylon rope 34 can be automatically released from winding wheel 33, winding wheel 33 can also rotate by itself, pendulum 36 can automatically hammer onto the side wall of the precast pile under the swinging of swinging rod 35, and the effect of enabling pendulum 36 to effectively hammer the precast pile is achieved.

As shown in fig. 1 and 5, the correction comparison device 4 includes a sliding bar 41 and a measuring rod 42, the base 1 is provided with a sliding groove 14, the sliding groove 14 is in a straight bar shape, the length direction of the sliding groove 14 is parallel to one diameter direction of the positioning hole 12, and the sliding bar 41 is placed in the sliding groove 14 and is in sliding fit with the sliding groove 14; one end of the measuring rod 42 is hinged to the end portion, close to the positioning hole 12, of the sliding bar 41, the guide piece 411 is vertically welded to the end portion of the sliding bar 41, and the end portion of the measuring rod 42 is provided with an accommodating notch 351; when the measuring stick 42 is rotated to the vertical state, the guide piece 411 is located in the accommodating notch 351 and is attached to the inner side wall of the accommodating notch 351.

When carrying out skew measurement to the precast pile, directly promote slider 41 to the direction that is close to locating hole 12, make the stator 411 laminating of slider 41 tip on the precast pile surface, rotate measuring stick 42 again after that, make holding breach 351 on the measuring stick 42 be close to stator 411, and let the lateral wall laminating of stator 411 on the inside wall that holds breach 351, measuring stick 42 just is in vertical state this moment, at this moment observe the lateral wall of measuring stick 42 and precast pile, if the offset between the lateral wall of discovery precast pile and the measuring stick 42 is great, then show that the precast pile has taken place the skew, thereby reach the comparatively convenient effect of measuring the precast pile skew.

The embodiment of the application also discloses a construction method for ensuring that the pile end of the precast pile enters the bearing stratum. The construction method for ensuring the pile end of the precast pile to enter the bearing stratum comprises the following steps:

a positioning step: pushing the base 1 to enable the positioning hole 12 on the base 1 to be opposite to the ground surface needing pile planting in the vertical direction, and enabling the central axis of the precast pile to be coincident with the central axis of the positioning hole 12;

a hammering step: the lifting plate 213 is lifted above the pile top of the precast pile, and then the precast pile is knocked by the vertical hammering device 2, so that the precast pile gradually sinks in the positioning hole 12;

a measurement step: pushing the sliding bar 41 to the side of the precast pile close to the positioning hole 12, so that the measuring rod 42 is attached to the pile wall of the precast pile, and checking the deviation of the measuring rod 42 and the precast pile in the vertical direction; if the measuring rod 42 is not completely attached to the surface of the precast pile, the precast pile is deviated; if the measuring rod 42 is completely attached to the surface of the precast pile, it indicates that the precast pile has no large deviation;

deviation rectifying: hammering is carried out on one side of the deviation of the precast pile through the pendulum bob 36, external force is applied to enable the precast pile to be straightened, and the measuring steps are repeated after hammering.

The implementation principle of the device for ensuring the pile end of the precast pile to enter the bearing stratum and the construction method thereof in the embodiment of the application is as follows: pushing the base 1 to enable the positioning hole 12 in the base 1 to be opposite to the ground where the pile needs to be planted in the vertical direction, then placing the precast pile into the positioning hole 12, and gradually hammering the precast pile into the ground through the vertical hammering device 2; after one section of the precast pile enters the ground, firstly, hammering is stopped, the precast pile is measured by the correction comparison device 4, and whether the precast pile is in a vertical state is judged; if the precast pile is not in the vertical state, hammering the deviated side of the precast pile through the deviation correcting device 3; after hammering, measuring the precast pile by the correction comparison device 4 again, and if the precast pile is in a vertical state, continuously hammering the precast pile into the ground until the precast pile reaches a bearing stratum; after the arrangement, the precast pile can be normally hammered into the bearing stratum under the condition that the precast pile is ensured not to have too large deviation, and the precast pile does not need to be directly taken out again when the precast pile has deviation, so that the problem of low implantation efficiency caused by the inclination of the pile body when the precast pile is hammered into the bearing stratum is solved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a guarantee precast pile stake end gets into device on bearing layer which characterized in that: the self-locking device comprises a base (1), wherein a plurality of self-locking universal wheels (11) are arranged on one side, which is opposite to the ground, of the base (1), a positioning hole (12) for a precast pile to pass through is formed in the base (1), and the aperture of the positioning hole (12) is larger than the diameter of the precast pile; a vertical hammering device (2) is arranged on the base (1), and the vertical hammering device (2) is used for vertically hammering the precast pile downwards into the bearing layer; the base (1) is also provided with an offset correcting device (3), and the offset correcting device (3) is used for correcting the pile body of the precast pile when the precast pile is offset; the base (1) is further provided with a correction and comparison device (4), the correction and comparison device (4) is used for measuring the pile body position of the precast pile after the precast pile is deviated and corrected, the vertical hammering device (2) comprises a lifting assembly (21) and a hammering assembly (22), the hammering assembly (22) is installed on the lifting assembly (21), the lifting assembly (21) is installed on the base (1), the hammering assembly (22) is used for hammering the top end of the precast pile, the lifting assembly (21) is used for driving the hammering assembly (22) to vertically lift, and the hammering assembly (22) comprises a hammering block (221) and a hydraulic cylinder (222); the lifting assembly (21) comprises a rotating motor (211), a threaded rod (212), a lifting plate (213) and a guide rod (214), the threaded rod (212) is vertically and rotatably arranged on the base (1), the rotating motor (211) is arranged on the base (1), an output shaft of the rotating motor (211) is perpendicular to the threaded rod (212), a driving bevel gear (2111) is arranged at the end part of the output shaft of the rotating motor (211), and a driven bevel gear (2121) meshed with the driving bevel gear (2111) is coaxially arranged on the threaded rod (212); the guide rod (214) is vertically arranged on the base (1), the positioning hole (12) is located between the guide rod (214) and the threaded rod (212), the lifting plate (213) is located between the threaded rod (212) and the guide rod (214) and located above the positioning hole (12), a threaded sleeve ring (2131) in threaded fit with the threaded rod (212) is arranged on one side of the lifting plate (213), a guide cylinder (2132) in sliding sleeve connection with the guide rod (214) is arranged on the other side of the lifting plate, the hydraulic cylinder (222) is arranged on the lifting plate (213), a piston rod of the hydraulic cylinder (222) vertically extends downwards, the hammering block (221) is arranged at the end of the hydraulic cylinder (222) and is opposite to a precast pile in the positioning hole (12) in the vertical direction, and the deviation correcting device (3) comprises a support (31), a servo motor (32), a winding wheel (33) and a positioning hole (12), The winding device comprises a nylon rope (34), a swinging rod (35) and a pendulum bob (36), wherein a support (31) is rotatably arranged on a base (1), a servo motor (32) is arranged on the support (31), a winding wheel (33) is coaxially arranged on an output shaft of the servo motor (32), and the nylon rope (34) is wound on the winding wheel (33); the swing rod (35) is rotatably arranged on one side of the bracket (31) close to the positioning hole (12), the pendulum bob (36) is arranged at one end of the swinging rod (35) far away from the bracket (31), the nylon rope (34) is connected with one side of the pendulum bob (36) departing from the positioning hole (12), a top plate (7) is arranged on the support (31), two vertical plates (71) are arranged on the top plate (7), the winding wheel (33) is rotatably arranged between the two vertical plates (71), the top plate (7) is provided with a sliding groove (72), the length direction of the sliding groove (72) is consistent with the length direction of the output shaft of the servo motor (32), a sliding plate (73) is arranged on the top plate (7) in a sliding way, the servo motor (32) is arranged on the sliding plate (73), a sliding block (731) is arranged on the sliding plate (73), and the sliding block (731) is in sliding fit with the top plate (7) through the sliding groove (72); the winding device is characterized in that a circular insert rod (321) is coaxially connected to an output shaft of the servo motor (32), a circular insert cylinder (331) with an opening at one side is arranged at the end of the winding wheel (33), the circular insert rod (321) is in inserted fit with the circular insert cylinder (331), an L-shaped abutting plate (322) is further arranged on the output shaft of the servo motor (32), an abutted plate (3311) is arranged on the outer wall of the circular insert cylinder (331), after the circular insert rod (321) is inserted into the circular insert cylinder (331), one section of the L-shaped abutting plate (322) is located on the outer wall of the circular insert cylinder (331), and the L-shaped abutting plate (322) is used for abutting against the abutted plate (3311) in the circumferential direction of the circular insert cylinder (331); the top plate (7) is further provided with an air cylinder (74), and the air cylinder (74) is used for driving the sliding plate (73) to slide along the length direction of the sliding groove (72).

2. The apparatus of claim 1, wherein the means for securing the pile end of the precast pile into the bearing stratum comprises: the lifting plate (213) is provided with a telescopic cylinder (5), the hydraulic cylinder (222) and the hammering block (221) are both positioned in the telescopic cylinder (5), the telescopic cylinder (5) is formed by slidably connecting a plurality of sleeves (51), a release-preventing piece (6) is arranged between every two adjacent sleeves (51), the release-preventing piece (6) is used for preventing the two adjacent sleeves (51) from being separated, and the inner walls of the sleeves (51) are covered with sound-absorbing plates (511); keep away from on lifter plate (213) sleeve (51) tip is provided with rubber turn-ups (512), rubber turn-ups (512) are used for laminating mutually with the lateral wall of precast pile.

3. The device for ensuring the entry of the pile end of the precast pile into the bearing stratum as claimed in claim 2, wherein: anti-disengaging piece (6) include anticreep flange (61) and anticreep chimb (62), anticreep flange (61) set up the one side opening edge at sleeve (51), anticreep chimb (62) set up the opening edge at sleeve (51) opposite side, anticreep flange (61) on sleeve (51) and the anticreep chimb (62) phase lock joint on the adjacent sleeve (51).

4. The apparatus of claim 1, wherein the means for securing the pile end of the precast pile into the bearing stratum comprises: the base (1) is provided with an annular groove (13), the circle center of the annular groove (13) is located at the same point as the circle center of the positioning hole (12), the lower end of the support (31) is provided with an annular plate (3311), and the annular plate (3311) is placed in the annular groove (13) and rotates relative to the annular groove (13).

5. The apparatus of claim 1, wherein the means for securing the pile end of the precast pile into the bearing stratum comprises: the correcting and contrasting device (4) comprises a sliding bar (41) and a measuring rod (42), a sliding groove (14) is formed in the base (1), the length direction of the sliding groove (14) is parallel to the diameter direction of one of the positioning holes (12), the sliding bar (41) is placed in the sliding groove (14) and is in sliding fit with the sliding groove (14), the measuring rod (42) is hinged to the end portion, close to the positioning hole (12), of the sliding bar (41), a guide sheet (411) is vertically arranged at the end portion of the sliding bar (41), and an accommodating notch (351) is formed in the end portion of the measuring rod (42); when the measuring rod (42) rotates to the vertical state, the guide piece (411) is located in the accommodating notch (351) and attached to the inner side wall of the accommodating notch (351).

6. A construction method for ensuring that the pile end of a precast pile enters a bearing stratum is characterized by comprising the following steps: the device for ensuring the entry of the pile end of a precast pile into the bearing stratum according to any one of claims 1 to 5 comprises the following steps:

a positioning step: pushing the base (1), enabling the positioning hole (12) on the base (1) to be opposite to the ground surface needing pile planting in the vertical direction, and enabling the central axis of the precast pile to be coincident with the central axis of the positioning hole (12);

a hammering step: lifting the lifting plate (213) above the pile top of the precast pile, and then knocking the precast pile through the vertical hammering device (2) to enable the precast pile to sink gradually in the positioning hole (12);

a measurement step: pushing the sliding strip (41) to the side of the precast pile close to the positioning hole (12), so that the measuring rod (42) is attached to the pile wall of the precast pile, and checking the deviation of the measuring rod (42) and the precast pile in the vertical direction; if the measuring rod (42) is not completely attached to the surface of the precast pile, indicating that the precast pile has deviation; if the measuring rod (42) is completely attached to the surface of the precast pile, the precast pile has no large deviation;

deviation rectifying: hammering is carried out on one side of the deviation of the precast pile through the pendulum bob (36), external force is applied to enable the precast pile to be righted, and the measuring step is repeated after hammering.