CN211690466U

CN211690466U - Pile foundation resistance to plucking detection device

Info

Publication number: CN211690466U
Application number: CN201922060018.1U
Authority: CN
Inventors: 肖登峰; 李启松; 肖绪胜
Original assignee: Hubei Edong Pile Foundation Engineering Co ltd
Current assignee: Hubei Edong Pile Foundation Engineering Co ltd
Priority date: 2019-11-22
Filing date: 2019-11-22
Publication date: 2020-10-16
Anticipated expiration: 2029-11-22

Abstract

The utility model relates to a pile foundation resistance to plucking detection device, its base, the slip that sets up including the level set up in the supporting seat and the fixed setting of base top in determine module on the supporting seat, be provided with the drive on the base the supporting seat is followed base length direction horizontal slip's drive assembly, drive assembly including slide set up in supporting part and drive on the base the gliding drive division of supporting part, be provided with on the supporting part be used for with the horizontally backup pad that the supporting seat propped up, the supporting part can drive backup pad up-and-down motion. The utility model discloses a drive assembly adjusts detection assembly's position, does not need the reuse hoist to hoist the supporting seat, easy operation, and labour saving and time saving has reduced construction cost.

Description

Pile foundation resistance to plucking detection device

Technical Field

The utility model belongs to the technical field of pile foundation performance detection device's technique and specifically relates to a pile foundation resistance to plucking detection device is related to.

Background

The pile foundation is a foundation structure for bearing buildings in the current engineering construction, and is mainly divided into a precast pile and a cast-in-place pile. The uplift performance of the pile foundation is one of necessary indexes in engineering acceptance, and when the uplift performance of the pile foundation is detected, factors such as the type, the section, the length, the site environment and the like of the pile foundation need to be considered.

Chinese patent with patent publication No. CN207215591U discloses a pile foundation uplift static load test reaction device, which comprises a connecting plate fixedly connected with a main reinforcement exposed at the top of a pile foundation to be tested, wherein the connecting plate is connected with a stress plate, the stress plate is connected with a reaction plate through a plurality of stress pull rods, and a reaction device for applying an upward acting force to the reaction plate is connected below the reaction plate in a butting manner; a plurality of connecting holes are formed in the connecting plate, the main ribs of the pile foundation to be tested penetrate through the connecting holes, the part of the connecting holes is connected with the connecting plate through connecting nuts, and the connecting nuts are located at the same horizontal height.

The technical scheme has the following defects: for furthest's improvement detection data's accuracy, jack needs the vertical upwards to the power of exerting force to the pile foundation, consequently need adjust the position of jack and make it be located the pile foundation directly over, and the jack need fix usually and just can accurately measure on the supporting seat that has very high structural strength, consequently the supporting seat is the steel construction usually, its volume and weight are great, need hoist with the hoist and just can adjust its position, the adjustment is inconvenient and waste time and energy, increase construction cost.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a pile foundation resistance to plucking detection device, the position of the adjustment determine module of being convenient for makes it be located the pile foundation directly over.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: the utility model provides a pile foundation resistance to plucking detection device, including the base that the level set up, slide set up in the supporting seat of base top and fixed set up in detection subassembly on the supporting seat, be provided with the drive on the base the supporting seat is followed base length direction horizontal slip's drive assembly, drive assembly including slide set up in supporting part and drive on the base the gliding drive division of supporting part, be provided with on the supporting part be used for with the horizontally backup pad that the supporting seat propped up, the supporting part is used for the drive backup pad up-and-down motion.

Through adopting above-mentioned technical scheme, the base plays the supporting role to whole detection device, the supporting seat is used for supporting the determine module and is convenient for it to the pile foundation application of force, bear the downward power that the pile foundation produced when extracting simultaneously, the determine module is handled the pressure data transmission that will detect simultaneously to the pile foundation application ascending pulling force, drive assembly is used for driving the supporting seat and sets up the determine module horizontal movement on the supporting seat, the scalable setting of supporting part and the setting of backup pad, can prop the supporting seat and make things convenient for drive unit drive supporting seat horizontal movement.

The present invention may be further configured in a preferred embodiment as: the supporting part comprises a vertically arranged hydraulic cylinder, a piston rod of the hydraulic cylinder is vertically upward, the supporting plate is fixedly arranged at the end part of the piston rod of the hydraulic cylinder, a sliding groove for the supporting part to slide is formed in the base along the length direction of the base, the supporting part is arranged in the sliding groove in a sliding mode, and when the piston rod of the hydraulic cylinder is in a contraction state, the upper surface of the supporting plate is lower than the upper surface of the base.

Through adopting above-mentioned technical scheme, through pneumatic cylinder drive backup pad up-and-down motion, the backup pad can prop up the supporting seat, and after accomplishing the adjustment of determine module position, the piston rod shrink of pneumatic cylinder because the upper surface of backup pad is less than the upper surface of base, makes the supporting seat place on the base, supports it through the base, improves bearing structure's stability.

The present invention may be further configured in a preferred embodiment as: the drive division includes the edge drive screw and the guide bar that base length direction set up, the drive screw both ends rotate set up in the spout is along on its length direction's the both sides wall, and its coaxial fixed driving motor that is provided with in tip, the guide bar both ends are fixed set up in the spout is along on its length direction's the both sides wall, supporting part threaded connection in drive screw is last and sliding connection in on the guide bar.

Through adopting above-mentioned technical scheme, driving motor drives drive screw and rotates, and supporting part threaded connection just sliding connection is on the guide bar on drive screw, and under the limiting displacement of guide bar, drive screw can drive the length direction motion of supporting part along the guide bar, can drive promptly and place the supporting seat motion in the backup pad.

The present invention may be further configured in a preferred embodiment as: the supporting part further comprises a sliding seat fixedly connected with the hydraulic cylinder, a threaded hole for the driving screw to penetrate through and a smooth hole for the guide rod to penetrate through in a sliding mode are formed in the sliding seat, and the driving screw is sleeved with the sliding seat in a sliding mode.

Through adopting above-mentioned technical scheme, the drive screw is located to the sliding seat screw thread cover and on the guide bar was located to the slip cap, and drive screw can drive the sliding seat and slide along guide bar length direction, and on the pneumatic cylinder was fixed in the sliding seat, the sliding seat played the supporting role to the pneumatic cylinder, drives the pneumatic cylinder motion through the sliding seat simultaneously.

The present invention may be further configured in a preferred embodiment as: the slide way is provided with along its length direction's "T" shape slide on its length direction's both sides lateral wall along the spout, the sliding seat both sides seted up with the slide slides the "T" shape slide rail of adaptation, the slide rail slide set up in on the slide.

Through adopting above-mentioned technical scheme, the setting of slide rail and slide makes the sliding seat slide set up in on the slide rail, support the vertical direction of sliding seat through the slide rail, rather than supporting the sliding seat through drive screw and guide bar, it is more stable to the support intensity of sliding seat.

The present invention may be further configured in a preferred embodiment as: the base sets up to two that are parallel to each other, and two base symmetries set up in the subaerial of pile foundation both sides, two all be provided with on the base drive assembly, two the pneumatic cylinder and two equal synchronous operation of driving motor, the both sides of supporting seat set up respectively on two bases.

Through adopting above-mentioned technical scheme, the setting of two bases supports the supporting seat, and bearing structure is more stable, and the synchronous operation of two driving motor and two pneumatic cylinders props up and drives its horizontal motion simultaneously to the both ends of supporting seat simultaneously, avoids leading in the supporting seat motion process both ends asynchronous and take place the slope.

The present invention may be further configured in a preferred embodiment as: the detection assembly comprises a jack fixedly arranged above the supporting seat, a horizontal top plate is arranged above the jack, a pressure sensor is arranged at the bottom of the top plate, and connecting pieces fixedly connected with the pile foundation are arranged around the top plate.

Through adopting above-mentioned technical scheme, jack exerts ascending power to the roof, and the roof passes through fixed connection between connecting piece and the pile foundation, passes through the connecting piece with the pressure of jack and transmits the pile foundation on, through the pressure sensor on the roof, real-time detection pressure data and transmit data processing system and handle.

The present invention may be further configured in a preferred embodiment as: the connecting piece is the reinforcing bar, the roof passes through the reinforcement welding and realizes its fixed connection with the pile foundation on the pile foundation.

Through adopting above-mentioned technical scheme, the welded steel structure operation is got up comparatively simply, and is difficult for breaking off, and fixed effect is better.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the position of the detection assembly is adjusted through the driving assembly, the supporting seat does not need to be lifted for adjustment, the operation is simple, time and labor are saved, and the construction cost is reduced;

2. the setting of supporting part when conveniently adjusting the determine module position, after the position adjustment is accomplished, still supports the determine module through the base, and the supporting effect is better.

Drawings

Fig. 1 is a schematic view of the three-dimensional structure of the present invention.

Fig. 2 is a top view of the present invention.

Fig. 3 is a cross-sectional view taken along line B-B of fig. 2.

Fig. 4 is a partially enlarged schematic view of a portion a in fig. 3.

In the figure, 1, a base; 2. a supporting seat; 3. a detection component; 4. a drive assembly; 11. a chute; 31. a jack; 32. a top plate; 33. a connecting member; 41. a support portion; 42. a drive section; 411. a hydraulic cylinder; 412. a support plate; 421. a drive screw; 422. a guide bar; 423. a drive motor; 424. a sliding seat; 425. a slideway; 426. a slide rail.

Detailed Description

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

Referring to fig. 1 and 3, for the utility model discloses a pile foundation resistance to plucking detection device, including two bases 1 that are parallel to each other that the level set up, two bases 1 symmetry respectively set up in waiting to detect the both sides of pile foundation. The horizontal supporting seat 2 is arranged above the two bases 1 in a sliding mode, the supporting seat 2 is in a long strip shape, the supporting seat 2 is perpendicular to the length direction of the bases 1, and two ends of the supporting seat are placed on the two bases 1 respectively. The detection component 3 is fixedly arranged above the supporting seat 2 at the middle part thereof, the detection component 3 comprises a jack 31 fixedly arranged on the supporting seat 2, a horizontal top plate 32 is fixedly arranged at the end part of a piston rod of the jack 31, the piston rod of the jack 31 is fixedly connected to the center of the top plate 32, and a pressure sensor (not shown in the figure) is arranged at the joint of the bottom surface of the top plate 32 and the jack 31. The fixed connecting piece 33 that is provided with in side of roof 32 is used for with pile foundation fixed connection, connecting piece 33 is many reinforcing bars in this embodiment, many equal vertical downwards of reinforcing bar and with the pile foundation on the reinforcing bar welded fastening who reserves, the reinforcing bar that the welding was accomplished all is in the state of straightening, jack 31's pressure can be vertical upwards and transmit the pile foundation completely through the welded steel structure on, handle pressure data real-time transmission to data processing system through pressure sensor.

Referring to fig. 2 and 4, the base 1 is provided with a driving unit 4 for driving the support base 2 to horizontally slide along the longitudinal direction of the base 1, and the driving unit 4 includes a support portion 41 (see fig. 1) slidably provided on the base 1 and a driving portion 42 (see fig. 1) for driving the support portion 41 to slide. The base 1 is provided with a sliding groove 11 along the length direction thereof for the sliding arrangement of the supporting portion 41, and the supporting portion 41 is arranged in the sliding groove 11 in a sliding manner. The supporting portion 41 includes a vertically disposed hydraulic cylinder 411, a piston rod of the hydraulic cylinder 411 is disposed vertically upward, a horizontal supporting plate 412 is fixedly disposed at an end of the piston rod, and two ends of the supporting seat 2 are located right above the two supporting plates 412. The two hydraulic cylinders 411 on the two bases 1 are controlled by a control system to synchronously operate, when piston rods of the hydraulic cylinders 411 are in a contraction state, the upper surface of the supporting plate 412 is lower than the upper surface of the base 1, at the moment, the supporting seat 2 is placed on the base 1, and the bottom surfaces of the supporting seats 2 are abutted to the upper surface of the base 1; when the piston rod of the hydraulic cylinder 411 extends, the supporting plate 412 jacks up the supporting seat 2, and the two ends of the supporting seat 2 are placed on the two supporting plates 412, so that the supporting seat 2 and the detecting component 3 arranged thereon are convenient to move.

Referring to fig. 2 and 4, the driving portion 42 includes a driving screw 421 and a guide rod 422 arranged along the length direction of the base 1, the driving screw 421 and the guide rod 422 are located on the same horizontal plane, two ends of the driving screw 421 are rotatably connected to two side walls of the sliding chute 11 along the length direction thereof through bearings, two ends of the guide rod 422 are fixedly arranged on the two side walls of the sliding chute 11 along the length direction thereof, one end of the driving screw 421 is coaxially and fixedly provided with a driving motor 423, and the two driving motors 423 on the two bases 1 are controlled by a control system to synchronously operate. Wear to be equipped with sliding seat 424 on drive screw 421 and the guide bar 422, the both ends of sliding seat 424 are seted up respectively and are supplied the screw hole that drive screw 421 screw thread wore to establish and supply guide bar 422 to slide the smooth hole of wearing to establish, and sliding seat 424 screw thread is worn to locate on drive screw 421 and slide and is worn to locate on the guide bar 422. Two T-shaped slideways 425 along the length direction are arranged on the side walls of the two sides of the sliding chute 11 along the length direction, two T-shaped sliding rails 426 which are respectively matched with the two slideways 425 in a sliding manner are arranged on the two sides of the sliding seat 424, and the two sides of the sliding seat 424 are arranged in the two slideways 425 in a sliding manner through the sliding rails 426. The pneumatic cylinder 411 is fixedly arranged on the sliding seat 424, the bottom of the pneumatic cylinder 411 is fixedly arranged on the upper surface of the sliding seat 424 through a bolt, the driving motor 423 is used for driving the driving screw 421 to rotate, and the sliding seat 424 moves along the length direction of the guide rod 422 under the limiting effect of the guide rod 422, so that the pneumatic cylinder 411 is driven to horizontally move. When the piston rod of hydraulic cylinder 411 extended, backup pad 412 with supporting seat 2 jack-up, supporting seat 2 both ends were placed on two backup pads 412, supporting seat 2 was along with the motion of backup pad 412 this moment to realize the regulation of the horizontal position of supporting seat 2.

The implementation principle of the embodiment is as follows: when the uplift resistance of the pile foundation is detected, the two bases 1 are symmetrically placed on the ground on two sides of the pile foundation, and the supporting base 2 is placed on the two bases 1; the hydraulic cylinder 411 is controlled to be in a contraction state through the control device, then the driving motor 423 is controlled to operate, the driving screw 421 is driven to rotate, and the driving screw 421 drives the sliding seat 424 and the hydraulic cylinder 411 fixed on the sliding seat 424 to move; when the hydraulic cylinder 411 moves to a position where the support plates 412 are located right below the support base 2, the driving motor 423 is turned off, and then the piston rod of the hydraulic cylinder 411 is controlled to extend, so that the two support plates 412 support the support base 2; open driving motor 423 drive backup pad 412 and place the motion of supporting seat 2 above that, jack 31 to on supporting seat 2 is located the pile foundation directly over, and the reinforcing bar welded fastening who reserves on with the reinforcing bar on roof 32 and the pile foundation this moment makes the reinforcing bar after the welding be in straightening state, can measure.

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

1. The utility model provides a pile foundation resistance to plucking detection device which characterized in that: base (1), the slip that sets up including the level set up in supporting seat (2) and fixed set up in detection subassembly (3) on supporting seat (2) above base (1), be provided with the drive on base (1) supporting seat (2) are followed base (1) length direction horizontal slip's drive assembly (4), drive assembly (4) including the slip set up in supporting part (41) and the drive on base (1) supporting part (41) gliding drive division (42), be provided with on supporting part (41) be used for with the horizontally backup pad (412) that supporting seat (2) propped up, supporting part (41) are used for driving backup pad (412) up-and-down motion.

2. The pile foundation uplift detection device according to claim 1, wherein: the supporting part (41) includes the pneumatic cylinder (411) of vertical setting, the piston rod of pneumatic cylinder (411) is vertical upwards, backup pad (412) fixed set up in the tip of pneumatic cylinder (411) piston rod, offer the confession along its length direction on base (1) supporting part (41) slide spout (11) that set up, supporting part (41) slide set up in spout (11), work as when the piston rod of pneumatic cylinder (411) is in the shrink state, the upper surface of backup pad (412) is less than the upper surface of base (1).

3. The pile foundation uplift detection device according to claim 2, wherein: drive division (42) include edge drive screw (421) and guide bar (422) that base (1) length direction set up, drive screw (421) both ends rotate set up in spout (11) are along on its length direction's the both sides wall, and its tip coaxial fixed be provided with driving motor (423), guide bar (422) both ends are fixed set up in spout (11) are along on its length direction's the both sides wall, supporting part (41) threaded connection in on drive screw (421) and sliding connection in on guide bar (422).

4. The pile foundation uplift detection device according to claim 3, wherein: supporting part (41) still include with pneumatic cylinder (411) fixed connection's sliding seat (424), offer the confession on sliding seat (424) the screw hole that driving screw (421) screw thread wore to establish and the confession guide bar (422) slide the smooth hole of wearing to establish, sliding seat (424) thread bush is located driving screw (421) are gone up and sliding bush is located guide bar (422) are gone up.

5. The pile foundation uplift detection device according to claim 4, wherein: the chute (11) is provided with along its length direction ' T ' shape slide (425) on its length direction's both sides lateral wall, slide (424) both sides seted up with slide (425) slip adaptation ' T ' shape slide rail, slide rail (426) slide set up in on slide (425).

6. The pile foundation uplift detection device according to claim 5, wherein: base (1) sets up to two that are parallel to each other, and two base (1) symmetry sets up in the subaerial of pile foundation both sides, two all be provided with on base (1) drive assembly (4), two pneumatic cylinder (411) and two equal synchronous operation of driving motor (423), two double-phase ends of supporting seat (2) set up respectively on two bases (1).

7. The pile foundation uplift detection device according to claim 6, wherein: detection component (3) including fixed set up in jack (31) of supporting seat (2) top, the top of jack (31) is provided with horizontally roof (32), the bottom of roof (32) is provided with pressure sensor, the both sides of roof (32) be provided with be used for with pile foundation fixed connection's connecting piece (33).

8. The pile foundation uplift detection device according to claim 7, wherein: connecting piece (33) are the reinforcing bar, roof (32) realize its and pile foundation's fixed connection through the steel reinforcement welding on the pile foundation.