CN215857910U

CN215857910U - High pile foundation detection device

Info

Publication number: CN215857910U
Application number: CN202122448831.3U
Authority: CN
Inventors: 张凯庆; 马小锋; 陈孝兵; 蔡建华
Original assignee: Sichuan Jiufeng Technology Co ltd
Current assignee: Sichuan Jiufeng Technology Co ltd
Priority date: 2021-10-12
Filing date: 2021-10-12
Publication date: 2022-02-18
Anticipated expiration: 2031-10-12

Abstract

The utility model relates to the technical field of pile foundation detection, and discloses a high pile foundation detection device which comprises a first clamping ring, a second clamping ring, a connecting pipe, a detection nail and a low strain detector, wherein the front end of the first clamping ring is hinged with the front end of the second clamping ring, the rear end of the first clamping ring is connected with the rear end of the second clamping ring through a split bolt, and a split nut is in threaded connection with the side surface of the split bolt. This high pile is with basic pile foundation detection device, through first snap ring, the second snap ring, the connecting pipe, the sleeve pipe, the uide bushing, the stopper, press the pipe, the electric drill, set screw, adjusting nut and to mutually supporting between the stay bolt, the axial of guaranteeing to survey the nail on each high pile and the equal same effect of angle of vertical face contained angle have been reached, solved when carrying out low strain detection to high pile, the axial of surveying the nail between different pile foundations is great with the angle difference of vertical face contained angle, influence the problem of testing result accuracy.

Description

High pile foundation detection device

Technical Field

The utility model relates to the technical field of pile foundation detection, in particular to a foundation pile foundation detection device for a high pile.

Background

The high pile is also called a high bearing platform pile foundation, can transmit external force transmitted by an upper structure to a deeper foundation bearing layer through a bearing platform and the pile, is widely applied to large-span bridges, wharfs and offshore oil platforms because of good vertical load bearing capacity, the lower half part of the high pile is usually immersed in water after the construction is finished, so when the integrity of the pile foundation is detected, the detection is usually carried out through low strain, but when the detection is carried out, the pile head of the high pile is covered by an upper building and is difficult to knock from the top end, so the knocking position needs to be changed, knocking is carried out from the side surface of the pile body, if a nylon hammer is directly used for knocking the side surface of the pile body, the direction of the excitation force is vertical to the axial direction of the pile body at the moment, the excitation force is difficult to be transmitted along the axial direction of the pile body, larger measurement error is caused, and before the detection of the pile body, often need to beat the slant hole at the side surface of high stake, then will survey in the nail drive hole and strike the survey nail, just can obtain comparatively accurate measured data.

There are a plurality of high piles under the high pile pier, so when detecting pile foundation integrality, also need punch to a plurality of high piles, but this kind of work of punching all needs the measurement personnel to use handheld electric drill to drill, however the high pile adopts high strength concrete when building more, so measurement personnel appears the nail hole skew easily at drilling in-process, thereby it is great to lead to the angle difference of surveying nail axle center and vertical face contained angle between different pile foundations, thereby influence final testing result's accuracy.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a high pile foundation detection device, which has the advantage of ensuring that the included angles between the axial direction and the vertical surface of the detection nail on each high pile are the same, and solves the problem that the detection result accuracy is influenced because the angle difference between the included angles between the axial direction and the vertical surface of the detection nail among different pile foundations is large when the high pile is subjected to low-strain detection.

(II) technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a foundation pile foundation detection device for high pile, includes first snap ring, second snap ring, connecting pipe, survey nail and low strain detector, the front end of first snap ring is articulated with the front end of second snap ring, the rear end of first snap ring is connected with the rear end of second snap ring through split bolt, the side surface threaded connection of split bolt has the split nut, the right side of split nut supports with the left side of second snap ring and holds, the connecting pipe is located the right side of first snap ring, the connecting pipe has the uide bushing through the bushing, the uide bushing is connected with through the stopper and presses the pipe, press the pipe to be connected with the electric drill through set screw, set screw's side surface threaded connection has adjusting nut.

Preferably, the connecting pipe and the first clamping ring are integrally arranged, the included angle between the axial line of the connecting pipe and the vertical surface is thirty degrees, and the included angle between the exciting force angle and the axial direction of the pile body is reduced so as to ensure that the exciting force is transmitted along the axial direction of the pile body as far as possible.

Preferably, the connecting pipe is an external thread pipe, the sleeve pipe is an internal thread pipe, the side surface of the connecting pipe is connected with the internal thread of the sleeve pipe, so that the guide sleeve can be quickly disassembled and assembled, the installation of the measuring nail is prevented from being influenced, and one end of the first clamping ring and the bottom fixed connection of the guide sleeve are far away from the sleeve pipe.

Preferably, the side face of the limiting block is fixedly connected with the side face of the pressure pipe, a limiting groove is formed in the guide sleeve, the limiting block is located in the limiting groove, the limiting groove limits the pressure pipe in the guide sleeve through the limiting block, and the pressure pipe can only move in the guide sleeve along the axial direction.

Preferably, the inside of uide bushing is provided with buffer spring, buffer spring keeps away from the one end of connecting the pipe and supports with the bottom of pressing the pipe and hold, and buffer spring can slow down the impact of electric drill when drilling, avoids the drill bit of electric drill to break because of assaulting too greatly.

Preferably, the electric drill is inserted into the pipe pressing device, one end, close to the connecting pipe, of the positioning screw abuts against the side surface of the electric drill, the positioning screw limits the relative position of the electric drill and the pipe pressing device, and the pipe pressing device is suitable for electric drills of various types and different sizes.

Compared with the prior art, the utility model provides a high pile foundation detection device, which has the following beneficial effects:

1. this high pile is with basic pile foundation detection device, through first snap ring, the second snap ring, the connecting pipe, the sleeve pipe, the uide bushing, the stopper, press the pipe, the electric drill, set screw, adjusting nut and to mutually supporting between the stay bolt, the axial of guaranteeing to survey the nail on each high pile and the equal same effect of angle of vertical face contained angle have been reached, solved when carrying out low strain detection to high pile, the axial of surveying the nail between different pile foundations is great with the angle difference of vertical face contained angle, influence the problem of testing result accuracy.

2. This high pile is with basic pile foundation detection device, through first snap ring, the second snap ring, the connecting pipe, the sleeve pipe, the uide bushing, the stopper, press the pipe, the electric drill, set screw, adjusting nut and the mutually supporting between the split bolt, reached and guaranteed on each high pile that the survey nail goes into pile body degree of depth homogeneous phase with the effect, solved and when carrying out low strain detection to high pile, the survey nail between different pile foundations goes into pile body degree of depth difference, influence the problem of testing result accuracy.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is an enlarged view taken at A of FIG. 1 in accordance with the present invention;

FIG. 3 is a schematic view of a retaining ring according to the present invention;

fig. 4 is a schematic structural view of the measuring nail of the present invention after being installed.

Wherein: 1. a first snap ring; 2. a second snap ring; 3. connecting pipes; 4. measuring a nail; 5. a low strain detector; 6. a sleeve; 7. a guide sleeve; 8. a limiting block; 9. pressing a pipe; 10. a limiting groove; 11. a buffer spring; 12. an electric drill; 13. a set screw; 14. adjusting the nut; 15. and (4) oppositely pulling the bolts.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, a foundation pile foundation detection device for a high pile includes a first clamp ring 1, a second clamp ring 2, a connecting pipe 3, a nail 4 and a low strain detector 5, the low strain detector is an instrument for detecting the integrity of a pile foundation, a stress wave pulse is generated by applying an excitation signal on a pile top, a reflected wave is generated when impedance changes during the propagation process along a pile body, the detector analyzes the propagation time, amplitude and waveform characteristics of the reflected wave to judge the integrity of the pile body, the front end of the first clamp ring 1 is hinged with the front end of the second clamp ring 2, the rear end of the first clamp ring 1 is connected with the rear end of the second clamp ring 2 through a split bolt 15, the first clamp ring 1 and the second clamp ring 2 are both arc rings, the first clamp ring 1, the second clamp ring 2 and the split bolt 15 together form a positioning ring, a split nut is connected with the side surface of the split bolt 15 through threads, the right side of split nut supports with the left side of second snap ring 2 and holds, the holding ring is connected with the side surface fastening of pile foundation this moment, connecting pipe 3 is located the right side of first snap ring 1, connecting pipe 3 sets up with first snap ring 1 as an organic whole, the contained angle of connecting 3 axial lines of pipe and vertical face is thirty degrees, connecting pipe 3 is connected with uide bushing 7 through sleeve pipe 6, connecting pipe 3 is external thread pipe, sleeve pipe 6 is internal thread pipe, the side surface of connecting pipe 3 and the inside threaded connection of sleeve pipe 6, the one end that first snap ring 1 was kept away from to sleeve pipe 6 and the bottom fixed connection of uide bushing 7, the inside of connecting pipe 3 and the inside intercommunication of uide bushing 7, uide bushing 7 is connected with through stopper 8 and presses pipe 9, stopper 8's the side and the side surface fixed connection who presses pipe 9, stopper 8's quantity is total four, four all around pressing pipe 9 is distributed respectively.

A limiting groove 10 is formed in the guide sleeve 7, each limiting block 8 is provided with a limiting groove 10, the limiting blocks 8 are located in the limiting grooves 10, the pressure pipe 9 can only move within the allowable range of the limiting grooves 10 under the combined action of the limiting blocks 8 and the limiting grooves 10, the pressure pipe 9 cannot be separated from the guide sleeve 7, buffer springs 11 are arranged in the guide sleeve 7, at the moment, the buffer springs 11 are in a compressed state, one end, far away from the connecting pipe 3, of each buffer spring 11 abuts against the bottom end of the pressure pipe 9, the pressure pipe is connected with electric drills 12 through positioning screws 13, the number of the positioning screws 13 is four, the four positioning screws 13 are respectively distributed on the front side, the rear side, the left side and the right side of the pressure pipe 9, the electric drills 12 are inserted into the inner portion of the pressure pipe 9, drill bits of the electric drills 12 sequentially penetrate through the inner bottom wall of the guide sleeve 7 and the connecting pipe 3, one ends, close to the connecting pipes 3, of the positioning screws 13 abut against the side surfaces of the electric drills 12, and adjusting nuts 14 are in threaded connection with the side surfaces of the positioning screws 13, adjusting nut 14 is close to the one end of electric drill 12 and supports with the side surface of pressing the pipe 9 and hold, and each set screw 13 all is furnished with an adjusting nut 14, through first snap ring 1, second snap ring 2, the connecting pipe 3, sleeve pipe 6, uide bushing 7, stopper 8, press the pipe 9, electric drill 12, set screw 13, adjusting nut 14 and the cooperation each other between the split bolt 15, the equal same effect of the angle of axial and vertical face contained angle of survey nail 4 on having reached assurance each high stake, solved and when carrying out low strain detection to high stake, the axial of survey nail 4 is great with the angle difference of vertical face contained angle between different pile foundations, influence the problem of testing result accuracy.

When the electric drill 12 is used, the split bolt 15 is firstly pulled out, the first clamping ring 1 and the second clamping ring 2 are opened, the pile body is clamped between the first clamping ring 1 and the second clamping ring 2, then the split bolt 15 and the split nut are used for locking, at the moment, the relative position of a positioning ring consisting of the first clamping ring 1, the second clamping ring 2 and the split bolt 15 and the pile body is fixed, the guide sleeve 7 is connected with the connecting pipe 3 through the sleeve 6, at the moment, the guide sleeve 7 and the connecting pipe 9 are connected with the first clamping ring 1 into a whole, then the electric drill 12 is inserted into the connecting pipe 9 and screwed, the electric drill 12 is fixed at a proper position, at the moment, the bottom end of the drill bit of the electric drill 12 sequentially penetrates through the guide sleeve 7, the sleeve 6, the connecting pipe 3 and the first clamping ring 1 and then contacts with the side surface of the pile body, then the electric drill 12 is opened, the electric drill 12 is pushed to move along the axial direction of the connecting pipe 3, the drill bit of the electric drill 12 can drill into the pile body until the bottom end of the connecting pipe 9 moves to the bottom end, and then the electric drill 12 is moved reversely, so that the drilling work is completed, and then, only the sleeve 6 is required to be separated from the connecting pipe 3, the measuring nail 4 is nailed into the drill hole, the probe of the low-strain detector is coated with the coupling agent and pasted on the appropriate position of the surface of the pile body, and the measuring nail 4 is knocked by a nylon hammer, so that the measuring waveform can be obtained, and the integrity of the pile foundation is judged.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high pile is with basic pile foundation detection device, includes first snap ring (1), second snap ring (2), connecting pipe (3), survey nail (4) and low strain detector (5), its characterized in that: the front end of first snap ring (1) is articulated with the front end of second snap ring (2), the rear end of first snap ring (1) is connected with the rear end of second snap ring (2) through split bolt (15), the side surface threaded connection of split bolt (15) has split nut, the right side of split nut supports with the left side of second snap ring (2) and holds, connecting pipe (3) are located the right side of first snap ring (1), connecting pipe (3) are connected with uide bushing (7) through sleeve pipe (6), uide bushing (7) are connected with through stopper (8) and press pipe (9), press the pipe to be connected with electric drill (12) through set screw (13), the side surface threaded connection of set screw (13) has adjusting nut (14).

2. The foundation pile foundation detection device for the high pile according to claim 1, wherein: the connecting pipe (3) and the first clamping ring (1) are integrally arranged, and the included angle between the axial line of the connecting pipe (3) and the vertical surface is thirty degrees.

3. The foundation pile foundation detection device for the high pile according to claim 1, wherein: the connecting pipe (3) is an external threaded pipe, the sleeve (6) is an internal threaded pipe, the side surface of the connecting pipe (3) is connected with the internal thread of the sleeve (6), and one end of the sleeve (6), far away from the first clamping ring (1), is fixedly connected with the bottom end of the guide sleeve (7).

4. The foundation pile foundation detection device for the high pile according to claim 1, wherein: the side face of the limiting block (8) is fixedly connected with the side face of the pressure pipe (9), a limiting groove (10) is formed in the guide sleeve (7), and the limiting block (8) is located in the limiting groove (10).

5. The foundation pile foundation detection device for the high pile according to claim 1, wherein: a buffer spring (11) is arranged inside the guide sleeve (7), and one end, far away from the connecting pipe (3), of the buffer spring (11) is abutted against the bottom end of the pressing pipe (9).

6. The foundation pile foundation detection device for the high pile according to claim 1, wherein: the electric drill (12) is inserted into the pressure pipe (9), and one end, close to the connecting pipe (3), of the positioning screw (13) is abutted against the side surface of the electric drill (12).