CN215053300U

CN215053300U - Novel vertical resistance to plucking static load experiment of single pile device

Info

Publication number: CN215053300U
Application number: CN202022688838.8U
Authority: CN
Inventors: 毕岩卫
Original assignee: Shandong Kejian Quality Testing And Evaluation Technology Co ltd
Current assignee: Shandong Kejian Quality Testing And Evaluation Technology Co ltd
Priority date: 2020-11-19
Filing date: 2020-11-19
Publication date: 2021-12-07
Anticipated expiration: 2030-11-19

Abstract

The utility model discloses a novel vertical resistance to plucking static load experiment of single pile device, which comprises a ground, the subaerial pit of having seted up, be equipped with the foundation pile in the pit, the both sides of pit all are equipped with the base on the ground, every the last lateral wall fixedly connected with high-pressure oil pump of base, every the high-pressure oil pump all through high-pressure oil pipe fixedly connected with and homonymy base on lateral wall fixed connection's the jack, every the common fixedly connected with backup pad of drive end of jack, the last lateral wall symmetry of backup pad runs through and is provided with two pull rods. The utility model discloses an extension of jack drive end drives two pull rods and shifts up simultaneously, through the cooperation of both sides fixture block and draw-in groove for foundation pile both sides atress is even, improves the accuracy that pressure sensor data detected, and the motor drive bull stick rotates in order to adjust the distance between two pull rods, and the convenience is detected not unidimensional foundation pile.

Description

Novel vertical resistance to plucking static load experiment of single pile device

Technical Field

The utility model relates to a foundation pile test technical field especially relates to a novel vertical resistance to plucking static load experiment of single pile device.

Background

The single-pile vertical uplift bearing capacity detection refers to a process of testing the vertical uplift resistance of a single pile through a certain method and carrying out analysis processing. The method for acquiring the vertical uplift bearing capacity of the single pile comprises a vertical uplift static load test of the single pile, a standard empirical formula and theoretical analysis. Through the statistical analysis and processing of the related data, the uplift limit bearing capacity of the engineering test pile can be calculated.

At present, the precast pile reinforcement cages are inserted into a plurality of holes to expose longer steel bars, uplift piles are manufactured when concrete is poured into the holes in the medium age period, operation is troublesome, cost is high, the steel bars are not firm in structure, and detection data are inaccurate due to the fact that stress is uneven easily when foundation piles are tested.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem in the background art, and the novel vertical resistance to plucking static load experiment of single pile device that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a novel single-pile vertical anti-pulling static load experimental device comprises a ground, a pit is arranged on the ground, a foundation pile is arranged in the pit, bases are arranged on the ground on two sides of the pit, a high-pressure oil pump is fixedly connected to the upper side wall of each base, each high-pressure oil pump is fixedly connected with a jack fixedly connected with the side wall of the base on the same side through a high-pressure oil pipe, a supporting plate is fixedly connected to the driving end of each jack together, two pull rods symmetrically penetrate through the upper side wall of the supporting plate, a clamping block is fixedly connected to the side wall of one side opposite to the lower end of each pull rod, clamping grooves matched with the clamping block are formed in the side walls of the two sides of the clamping grooves, pressure sensors are fixedly connected to the upper side walls of the two clamping grooves, limiting blocks located on two sides of the supporting plate are fixedly sleeved on the outer side walls of the two pull rods, and the outer side wall of each limiting block is attached to two sides of the supporting plate, one of them the pull rod is located the one end lateral wall fixedly connected with connecting rod of backup pad below, the one end slip cover that the pull rod was kept away from to the connecting rod is equipped with the connecting cylinder, the inner wall of connecting cylinder and the common fixedly connected with spring of one end that the connecting rod is located the connecting cylinder, the last lateral wall fixedly connected with of base runs through the displacement detection pole that the lateral wall set up under the backup pad, the lateral wall slip cover of displacement detection pole is equipped with the lantern ring with the lateral wall fixed connection of connecting cylinder, two the pull rod is equipped with adjustment mechanism with the last lateral wall of backup pad.

Preferably, adjustment mechanism include with backup pad lateral wall fixed connection's support, the upper end fixedly connected with motor of support, the output shaft of motor is towards openly and fixedly connected with bull stick, the both ends of bull stick all rotate be connected with homonymy pull rod lateral wall sliding connection's slider.

Preferably, the pull rod on the right side is located one end lateral wall fixedly connected with inserted bar of backup pad below, the other end sliding sleeve of inserted bar is equipped with the sleeve with left side pull rod lateral wall fixed connection, telescopic lateral wall threaded connection has fastening bolt, fastening bolt's tip offsets with the one end lateral wall that the inserted bar is located the sleeve.

Preferably, one end of the connecting rod, which is positioned in the connecting cylinder, is fixedly connected with a limiting plate.

Preferably, the upper side wall of the supporting plate is provided with a sliding groove matched with the pull rod.

Preferably, the slider is the T type setting of putting horizontally, two the lateral wall of pull rod all is seted up with slider assorted T type spout.

Compared with the prior art, this novel vertical resistance to plucking static load experiment of single pile device's advantage lies in:

1. the high-pressure oil pump is used for pressurizing the jack through the high-pressure oil pipe so that the driving end of the jack is extended and the supporting plate is driven to move upwards, so that the two pull rods are driven to move upwards through the limiting plate, and the clamping blocks on the two sides are matched with the clamping grooves, so that the stress on the two sides of the foundation pile is uniform, and the accuracy of data detection of the pressure sensor is improved;

2. the rotating rod and the sliding blocks are arranged, the rotating rod is driven to rotate through the motor, so that the sliding blocks at the two ends of the rotating rod are driven to move in opposite directions, the two pull rods are pulled to move in opposite directions or move in opposite directions, the distance between the two pull rods is adjusted, and foundation piles with different sizes can be conveniently detected;

to sum up, the utility model discloses an extension of jack drive end drives two pull rods and shifts up simultaneously, through the cooperation of both sides fixture block with the draw-in groove for foundation pile both sides atress is even, improves the accuracy that pressure sensor data detected, and the motor drive bull stick rotates in order to adjust the distance between two pull rods, and the convenience is detected not unidimensional foundation pile.

Drawings

FIG. 1 is a schematic structural view of a novel single-pile vertical uplift static load experiment device provided by the utility model;

FIG. 2 is an enlarged view of A in FIG. 1;

fig. 3 is the utility model provides a novel plan view of pull rod and slider junction among vertical resistance to plucking static load experimental apparatus of single pile.

In the figure: the device comprises a ground surface 1, a base 2, a high-pressure oil pump 3, a high-pressure oil pipe 4, a jack 5, a supporting plate 6, a pull rod 7, a clamping block 8, a foundation pile 9, a pressure sensor 10, a limiting block 11, a connecting rod 12, a connecting cylinder 13, a lantern ring 14, a spring 15, a displacement detection rod 16, a bracket 17, a motor 18, a rotating rod 19, a sliding block 20, an inserted rod 21, a sleeve 22 and a fastening bolt 23.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a novel single pile vertical anti-pulling static load experimental device comprises a ground 1, a pit is arranged on the ground 1, a foundation pile 9 is arranged in the pit, bases 2 are respectively arranged on the ground 1 at two sides of the pit, a high-pressure oil pump 3 is fixedly connected to the upper side wall of each base 2, each high-pressure oil pump 3 is fixedly connected with a jack 5 fixedly connected with the upper side wall of the base 2 at the same side through a high-pressure oil pipe 4, a support plate 6 is fixedly connected to the driving end of each jack 5 together, a clamping block 8 is fixedly connected to the side wall at one side opposite to the lower end of each pull rod 7, clamping grooves matched with the clamping block 8 are respectively arranged on the side walls at two sides of the foundation pile 9, a pressure sensor 10 is fixedly connected to the upper side walls of the two clamping grooves, two pull rods 7 are symmetrically arranged on the upper side wall of the support plate 6 in a penetrating manner, and the support plate 6 applies force to the two pull rods 7 through a limiting block 11, so as to ensure that the two pull rods 7 evenly stress the two sides of the foundation pile 9 and improve the accuracy of data detection of the pressure sensor 10.

The fixed stopper 11 that is located 6 both sides of backup pad is all fixed to the lateral wall of two pull rods 7, the lateral wall of every stopper 11 all pastes with the both sides of backup pad 6 mutually, high-pressure oil pump 3 makes the drive end extension of jack 5 through high pressure fuel pipe 4 to jack 5 pressurization, drive backup pad 6 and shift up, thereby stopper 11 through its top drives two pull rods 7 and shifts up simultaneously, and then through the cooperation of both sides fixture block 8 with the draw-in groove, stimulate foundation pile 9, thereby accomplish foundation pile 9's resistance to plucking process.

One of them pull rod 7 is located one end lateral wall fixedly connected with connecting rod 12 of backup pad 6 below, and the one end slip cover that pull rod 7 was kept away from to connecting rod 12 is equipped with connecting cylinder 13, and connecting rod 12 is located the one end fixedly connected with limiting plate of connecting cylinder 13, has avoided breaking away from connecting cylinder 13 at the in-process that pull rod 7 drove connecting rod 12 and removed.

The inner wall of connecting cylinder 13 and the common fixedly connected with spring 15 of one end that connecting rod 12 is located connecting cylinder 13, spring 15 has made things convenient for pull rod 7 to drive connecting rod 12 and has removed the in-process, connecting rod 12 can stretch out and draw back in connecting cylinder 13, the last lateral wall fixedly connected with of base 2 runs through displacement detection pole 16 that the lateral wall set up under backup pad 6, the lateral wall slip cap of displacement detection pole 16 is equipped with lantern ring 14 with the lateral wall fixed connection of connecting cylinder 13, shift up through pull rod 7 pulling foundation pile 9, pull rod 7 drives lantern ring 14 through connecting rod 12 and connecting cylinder 13 and slides on displacement detection pole 16 and moves up, the displacement detection pole 16 of being convenient for detects the distance that foundation pile 9 moved up, cooperate pressure sensor 10's data calculation foundation pile 9's resistance to plucking value.

Two pull rods 7 are equipped with adjustment mechanism with backup pad 6's last lateral wall, adjustment mechanism includes the support 17 with backup pad 6 side wall fixed connection, support 17's upper end fixedly connected with motor 18, motor 18's output shaft is positive and fixedly connected with bull stick 19 towards, bull stick 19's both ends are all rotated and are connected with slider 20 with 7 lateral wall sliding connection of homonymy pull rod, slider 20 is the T type setting of putting horizontally, two pull rod 7's lateral wall all seted up with slider 20 assorted T type spout, backup pad 6's last lateral wall seted up with pull rod 7 assorted spout, motor 18 drive bull stick 19 rotates, thereby drive the slider 20 at its both ends and remove toward opposite direction, and then stimulate two pull rod 7 and remove or opposite movement in opposite directions, with the distance between two pull rod 7 of regulation, the convenience is detected not unidimensional foundation pile 9.

Further, the pull rod 7 that is located the right side is located one end lateral wall fixedly connected with inserted bar 21 of backup pad 6 below, the other end sliding sleeve of inserted bar 21 is equipped with sleeve 22 with 7 lateral wall fixed connection of left side pull rod, sleeve 22's lateral wall threaded connection has fastening bolt 23, fastening bolt 23's tip offsets with the one end lateral wall that inserted bar 21 is located sleeve 22, screw in fastening bolt 23 fixes inserted bar 21 and sleeve 22, so that connect the lower extreme of two pull rods 7 into an organic whole, improve pull rod 7's steadiness.

Further, unless otherwise specifically stated or limited, the above-described fixed connection is to be understood in a broad sense, and may be, for example, welded, glued, or integrally formed as is conventional in the art.

Now, the operation principle of the present invention is explained as follows:

start high-pressure oil pump 3, pressurize to jack 5 through high-pressure fuel pipe 4 and make the drive end extension of jack 5, it shifts up to drive backup pad 6, thereby stopper 11 through its top drives two pull rods 7 and shifts up simultaneously, backup pad 6 passes through stopper 11 to two pull rods 7 application of force, in order to ensure that two pull rods 7 are simultaneously to the even atress in both sides of foundation pile 9, the accuracy that improves pressure sensor 10 data detection, and then through the cooperation of both sides fixture block 8 with the draw-in groove, stimulate foundation pile 9, thereby accomplish the resistance to plucking process of foundation pile 9, pull rod 7 promotes foundation pile 9 and shifts up, pull rod 7 passes through connecting rod 12 and connecting cylinder 13 and drives lantern ring 14 and slide on displacement detection pole 16 and move up, the displacement detection pole 16 of being convenient for detects the distance that foundation pile 9 moved up, cooperate the resistance to plucking value of foundation pile 9 of pressure sensor 10's data calculation.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A novel single-pile vertical anti-pulling static load experimental device comprises a ground (1) and is characterized in that a pit is formed in the ground (1), a foundation pile (9) is arranged in the pit, bases (2) are arranged on the ground (1) on two sides of the pit, a high-pressure oil pump (3) is fixedly connected to the upper side wall of each base (2), each high-pressure oil pump (3) is fixedly connected with a jack (5) fixedly connected with the upper side wall of the base (2) on the same side through a high-pressure oil pipe (4), a supporting plate (6) is fixedly connected to the driving end of each jack (5) together, two pull rods (7) symmetrically penetrate through the upper side wall of the supporting plate (6), a clamping block (8) is fixedly connected to the side wall on one side opposite to the lower end of each pull rod (7), clamping grooves matched with the clamping block (8) are formed in the side walls on two sides of the foundation pile (9), the upper side walls of the two clamping grooves are fixedly connected with pressure sensors (10), the outer side walls of the two pull rods (7) are fixedly sleeved with limit blocks (11) positioned on two sides of the supporting plate (6), the outer side wall of each limit block (11) is attached to two sides of the supporting plate (6), one end of each pull rod (7) positioned below the supporting plate (6) is fixedly connected with a connecting rod (12), one end, far away from the pull rod (7), of each connecting rod (12) is slidably sleeved with a connecting cylinder (13), the inner wall of each connecting cylinder (13) and one end, located in each connecting cylinder (13), of each connecting rod (12) are fixedly connected with a spring (15) together, the upper side wall of the base (2) is fixedly connected with a displacement detection rod (16) penetrating through the lower side wall of the supporting plate (6), and the outer side wall of each displacement detection rod (16) is slidably sleeved with a sleeve ring (14) fixedly connected with the outer side wall of each connecting cylinder (13), and adjusting mechanisms are arranged on the upper side walls of the two pull rods (7) and the supporting plate (6).

2. The novel single-pile vertical uplift static load experiment device is characterized in that the adjusting mechanism comprises a support (17) fixedly connected with the side wall of the support plate (6), a motor (18) is fixedly connected to the upper end of the support (17), an output shaft of the motor (18) faces the front side and is fixedly connected with a rotating rod (19), and two ends of the rotating rod (19) are rotatably connected with sliding blocks (20) in sliding connection with the outer side wall of the pull rod (7) on the same side.

3. The novel single-pile vertical uplift static load experiment device is characterized in that an insert rod (21) is fixedly connected to the outer side wall of one end, located on the right side, of the pull rod (7) located below the support plate (6), a sleeve (22) fixedly connected to the outer side wall of the pull rod (7) on the left side is slidably sleeved on the other end of the insert rod (21), a fastening bolt (23) is connected to the outer side wall of the sleeve (22) in a threaded mode, and the end portion of the fastening bolt (23) abuts against the outer side wall of one end, located in the sleeve (22), of the insert rod (21).

4. The novel single-pile vertical uplift static load experiment device as claimed in claim 1, wherein a limiting plate is fixedly connected to one end of the connecting rod (12) located in the connecting cylinder (13).

5. The novel single-pile vertical uplift static load experiment device as claimed in claim 1, wherein a sliding groove matched with the pull rod (7) is formed in the upper side wall of the supporting plate (6).

6. The novel single-pile vertical uplift static load experiment device as claimed in claim 2, wherein the sliding blocks (20) are arranged in a flat T shape, and T-shaped sliding grooves matched with the sliding blocks (20) are formed in the outer side walls of the two pull rods (7).