CN209353384U - A kind of hole drilling type existing building pile's integrity testing device - Google Patents
A kind of hole drilling type existing building pile's integrity testing device Download PDFInfo
- Publication number
- CN209353384U CN209353384U CN201822196031.5U CN201822196031U CN209353384U CN 209353384 U CN209353384 U CN 209353384U CN 201822196031 U CN201822196031 U CN 201822196031U CN 209353384 U CN209353384 U CN 209353384U
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- China
- Prior art keywords
- existing building
- pile
- hole
- gravitation ball
- testing device
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- 238000005553 drilling Methods 0.000 title claims abstract description 20
- 238000011016 integrity testing Methods 0.000 title claims abstract description 19
- 230000001133 acceleration Effects 0.000 claims abstract description 21
- 238000007405 data analysis Methods 0.000 claims abstract description 12
- 239000004570 mortar (masonry) Substances 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 238000012545 processing Methods 0.000 claims description 9
- 238000013480 data collection Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 17
- 238000005259 measurement Methods 0.000 abstract description 7
- 238000012360 testing method Methods 0.000 abstract description 6
- 238000004458 analytical method Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 4
- 230000035939 shock Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 9
- 238000013461 design Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000007689 inspection Methods 0.000 description 2
- 239000012491 analyte Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 238000012372 quality testing Methods 0.000 description 1
Landscapes
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The utility model relates to a kind of hole drilling type existing building pile's integrity testing devices, pass through the setting of electric hoisting frame, it realizes to the adjusting of gravitation ball height and position and the calibration of drop point site, the free-falling of gravitation ball energy applies impact load to existing building pile foundation, gravitation ball exciting force F signal is detected by acceleration transducer, spread speed V signal of the shock wave through pile body is detected by velocity sensor, the analysis of V/F mechanical admittance curves is carried out by data analysis system, obtain pile integrity detection result, it can efficiently solve and carry out add-story reconstruction in existing construction foundation, or in the case that surrounding enviroment influence its safety, carry out pile measurement during encounter because top existing building influence, the problem of carrying out, is difficult to existing building pile measurement, it is smaller with being destroyed to existing building, testing result is accurate and reliable , highly-safe, test equipment is simple, at low cost, detection time is short, flexible and convenient and the advantages of be suitable for existing building narrow space.
Description
Technical field
The utility model belongs to building pile foundation quality testing field, more specifically to a kind of hole drilling type existing building
Pile's integrity testing device.
Background technique
Existing building pile detection is a complex and difficult task.Due to existing building pile measurement
Unique and complexity, at present still not no mature detection means.According to the detection method of " architecture foundation pile inspection specifications "
And its related request, detected using its detection method existing building stake it is long and enter supporting course depth, do not influencing
It cannot achieve in the case where foundation pile normal use.Currently, the detection method of foundation pile integrity has four classes, i.e., low strain dynamic method,
Large strain method, supercritical ultrasonics technology and core drilling method.There are many low strain integrity testing method, but each method requires to install sensor
It in foundation pile bottom, taps at the top of foundation pile, the stress wave of generation is propagated along pile body, and the stress wave received by analyte sensors is anti-
The lasting of curve, phase, amplitude are penetrated, to evaluate pile integrity.For existing building, stake top and cushion cap and superstructure are
It is connected with each other, sensor is installed at stake bottom and percussion stake top generation stress wave is all relatively difficult, and response signal is complex, it is difficult to
Accurately using its tracing pattern come the case where analyzing foundation pile；For Large strain method, sensor is installed and weight taps at all just
It can not；Ultrasonic method detection needs embedded sound detecting pipe, even if foundation pile is embedded with sound detecting pipe when being poured, after pile detection,
It has generally also been destroyed in foundation construction, therefore, the pile detection for existing building is also that can not carry out；Core drilling method inspection
It surveys, it is destructive serious, it cannot achieve substantially.
Utility model content
The technical issues of the utility model solves is to carry out increasing layer in existing building or influenced by surrounding enviroment, existing to build
It builds foundation bearing capacity to be affected, needs to detect pile foundation, the architectural design drawing encountered during this is lost etc., it can not
Accurate judgement pile body position, the problem of pile's integrity testing can not be carried out, provide it is a kind of safe and reliable, it is broken to existing building
Bad small, hole drilling type existing building pile's integrity testing device easy to operate.
In order to solve the above-mentioned technical problem, the utility model provides a kind of hole drilling type existing building pile's integrity testing
Device comprising gravitation ball, electric hoisting frame, acceleration transducer, velocity sensor, signal picker, data analysis system
And data processing computer, the acceleration transducer are mounted on the gravitation ball, the velocity sensor is mounted on pile foundation
Top surface, the velocity sensor and the acceleration transducer connect with the data collection terminal of the signal picker respectively,
The data output end of the signal picker is connect with the data input pin of the data analysis system, the data analysis system
Data output end connect with the data processing computer, the electric hoisting frame include liftable adjust bracket and lifting
Component, the lifting component include line roller, messenger wire and motor, and the line roller is rotatably connected to the top of the bracket, institute
State the top that motor is fixed on the bracket, the power output end of the motor is connect with the line roller, the messenger wire wound on
On the line roller, the end of the messenger wire is broken off relations equipped with t shape, is installed at the top of the gravitation ball and is connected with t shape unhook
Hanging ring, gag lever post is equipped on the direction of bracket gravitation ball described in hanging, the gag lever post is equipped with and hangs for described
The limit hole that line passes through, it includes L shape bar and hammer lever that the t shape, which breaks off relations, and the upper end of the L shape bar is connect with the messenger wire, institute
The lower end for stating L shape bar is connect with the hanging ring, and the hammer lever is horizontally fixed on the top of the L shape bar, when the hammering
When bar is tapped by external force, the t shape unhook can be swung using the limit hole as fulcrum, the lower end of the L shape bar and institute
State hanging ring disengaging, gravitation ball free-falling.
As the preferred scheme of the utility model, at the top of the pile foundation with cushion cap, the cushion cap is apart from the pile foundation
Central axis 2/3rds radial positions be equipped with acquisition hole, it is described acquisition hole bottom surface be the pile foundation top surface.
As the preferred scheme of the utility model, the bottom surface in the acquisition hole is equipped with one layer of fast hard mortar, fast hard mortar
Upper surface is installed with steel plate, and the velocity sensor is adsorbed on the steel plate by magnetic attracting device.
As the preferred scheme of the utility model, at the top of the pile foundation with cushion cap, the cushion cap is in the pile foundation
Exciting hole is equipped at axial centerline, the bottom surface in the exciting hole is the top surface of the pile foundation.
As the preferred scheme of the utility model, the bottom surface in the exciting hole is equipped with one layer of fast hard mortar, fast hard mortar
Upper surface is installed with backing plate.
As the preferred scheme of the utility model, the acceleration transducer is mounted on the top of the gravitation ball, and position
In in the surrounded space of the hanging ring.
As the preferred scheme of the utility model, the acceleration transducer is equipped with wireless transmitter module, and the signal is adopted
Storage is equipped with the wireless receiving module to match with the wireless transmitter module.
As the preferred scheme of the utility model, the length of the hammer lever is greater than the aperture of the limit hole.
Implement a kind of hole drilling type existing building pile's integrity testing device of the utility model, compared with prior art
Compared with having the following beneficial effects:
The utility model realizes adjusting to gravitation ball height and position and drop point site by the setting of electric hoisting frame
Calibration, the free-falling of gravitation ball energy apply impact load to existing building pile foundation, detect gravitation ball by acceleration transducer and swash
Shake power F signal, detects spread speed V signal of the shock wave through pile body by velocity sensor, is carried out by data analysis system
V/F mechanical admittance curves are analyzed, and are obtained pile integrity detection result and are sent to storage in data processing computer and show, can
It efficiently solves in the case where existing construction foundation carries out add-story reconstruction or surrounding enviroment influence its safety, carries out
Encounter during pile measurement because top existing building influence, the problem of carrying out, is difficult to existing building pile measurement, is had
Have to existing building destroy it is smaller, testing result is accurate and reliable, highly-safe, test equipment is simple, at low cost, detection time
It is short, flexible and convenient and the advantages of be suitable for existing building narrow space.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the utility model embodiment, the attached drawing of embodiment will be made below simple
Ground introduction.
Fig. 1 is a kind of structural representation of hole drilling type existing building pile's integrity testing device provided by the utility model
Figure；
Fig. 2 is the structural schematic diagram of electric hoisting frame；
Fig. 3 is the structural schematic diagram of gravitation ball；
Fig. 4 is the structural schematic diagram that t type breaks off relations.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
Every other embodiment obtained, fall within the protection scope of the utility model.
In conjunction with referring to FIG. 1 to FIG. 4, the preferred embodiment of the utility model, a kind of hole drilling type existing building pile foundation is complete
Whole property detection device comprising gravitation ball 1, electric hoisting frame 2, acceleration transducer 3, velocity sensor 4, signal picker 5,
Data analysis system 6 and data processing computer 7, the acceleration transducer 3 are mounted on the gravitation ball 1, the speed
Sensor 4 is mounted on the top surface of pile foundation 8, the velocity sensor 4 and the acceleration transducer 3 respectively with the signal acquisition
The data collection terminal of device 5 connects, and the data of the data output end of the signal picker 5 and the data analysis system 6 input
End connection, the data output end of the data analysis system 6 are connect with the data processing computer 7, the electric hoisting frame 2
The bracket 21 and lifting component adjusted including liftable, the lifting component includes line roller 22, messenger wire 23 and motor 24, the line
Roller 22 is rotatably connected to the top of the bracket 21, and the motor 24 is fixed on the top of the bracket 21, the motor
24 power output end is connect with the line roller 22, and the messenger wire 23 is on the line roller 22, the end of the messenger wire 23
Equipped with t shape unhook 25, the top of the gravitation ball 1 is installed with the hanging rings 11 connecting with t shape unhook 25, and the bracket 21 exists
The direction of gravitation ball 1 described in hanging is equipped with gag lever post 26, and the gag lever post 26 is equipped with the limit passed through for the messenger wire 23
Position hole 27, the t shape unhook 25 include L shape bar 251 and hammer lever 252, and the upper end of the L shape bar 251 and the messenger wire 23 connect
It connects, the lower end of the L shape bar 251 is connect with the hanging ring 11, and the hammer lever 252 is horizontally fixed on the L shape bar 251
Top, when the hammer lever 252 is tapped by external force, the t shape unhook 25 can be that fulcrum be put with the limit hole 27
Dynamic, the lower end of the L shape bar 251 and the hanging ring 11 are detached from, 1 free-falling of gravitation ball.
The utility model passes through the setting of electric hoisting frame 2 as a result, realizes the adjusting to 1 height and position of gravitation ball and falls
The calibration of point position, 1 energy free-falling of gravitation ball apply impact load to existing building pile foundation, are examined by acceleration transducer 3
1 exciting force F signal of measuring gravity ball detects spread speed V signal of the shock wave through pile body by velocity sensor 4, passes through data
Analysis system 6 carries out the analysis of V/F mechanical admittance curves, obtains pile integrity detection result and is sent in data processing computer 7
Storage and display can efficiently solve and influence its safety in existing construction foundation progress add-story reconstruction or surrounding enviroment
Property in the case where, encounter during pile measurement because top existing building influence, it is difficult to existing building pile measurement
The problem of to carry out, has and destroys to existing building smaller, testing result is accurate and reliable, highly-safe, test equipment is simple, at
This is low, detection time is short, flexible and convenient and the advantages of be suitable for existing building narrow space.
Illustratively, at the top of for the pile foundation with cushion cap 9, the three of central axis of the cushion cap 9 apart from the pile foundation 8
/ bis- radial positions are equipped with acquisition hole 91, and the bottom surface in the acquisition hole 91 is the top surface of the pile foundation 8.In this way, acquisition hole
91 design can be avoided cushion cap 9 it is blocked up cause shear wave energy decaying it is excessive.Further, the bottom surface in the acquisition hole 91 is equipped with
One layer of fast hard mortar, keeps the top surface of pile foundation 8 smooth, and is installed with steel plate, the velocity sensor 4 in the upper surface of fast hard mortar
It is adsorbed on the steel plate by magnetic attracting device, facilitates installation, and ensure that velocity sensor 4 can be vertically installed at steel
It on plate, is bonded the detection end face of velocity sensor 4 completely with steel plate, and then ensures to acquire the accuracy of signal.
Illustratively, at the top of for the pile foundation with cushion cap 9, the cushion cap 9 is at the axial centerline of the pile foundation 8
Equipped with exciting hole 92, the bottom surface in the exciting hole 92 is the top surface of the pile foundation 8.In this way, the design in acquisition hole 91 can be avoided
Cushion cap 9 is blocked up to cause shear wave energy decaying excessive.Further, the bottom surface in the exciting hole 92 is equipped with one layer of fast hard mortar, fastly
The upper surface of hard mortar is installed with backing plate, prevents gravitation ball 1 from damaging to pile foundation top.
Illustratively, the acceleration transducer 3 is mounted on the top of the gravitation ball 1, and is located at 11 institute of hanging ring
It surrounds in space.Such design can make hanging ring 11 play protection to acceleration transducer 3, avoid acceleration transducer 3 because by
It is damaged to direct collision.
Illustratively, the acceleration transducer 3 be equipped with wireless transmitter module, the signal picker 5 be equipped with it is described
The wireless receiving module that wireless transmitter module matches.Such design can abandon the connection of data line, avoid accelerating
Spend drawing of the sensor 3 by data line.
Illustratively, the length of the hammer lever 252 is greater than the aperture of the limit hole 27, when gravitation ball 1 rises to limit
When the bar 26 of position, hammer lever 252 can be limited the blocking of hole 27, to realize the limit to 1 height and position of gravitation ball.
Using a kind of hole drilling type existing building pile's integrity testing device of the utility model, detecting step includes such as
Under:
Step 1 (swashs in the center of pile foundation 8 and being drilled apart from about 2/3 position of 8 center of pile foundation to cushion cap 9
Shake hole 92 and acquisition hole 91), it is drilled into the top surface of pile foundation 8；
Step 2, the fast hard mortar of bottom surface addition in acquisition hole 91 flatten bottom hole, are then put into steel plate, then pass through magnetic
Device is inhaled to be adsorbed in velocity sensor 4 on steel plate vertically；The fast hard mortar of bottom surface addition in exciting hole 92 flattens bottom hole, then
Backing plate is put into；
Step 3 installs electric hoisting frame 2 and gravitation ball 1, electric hoisting frame 2 is set up in the top of pile foundation 8, by messenger wire
23 pass through limit hole 27, using 25 connection messenger wires 23 of t shape unhook and gravitation ball 1, adjust the height and calibration weight of electric hoisting frame 2
The drop point site of power ball 1 falls into gravitation ball 1 vertically in exciting hole 92, is subject to not by hole wall friction；
Step 4 connects acceleration transducer 3, velocity sensor 4, signal picker 5, data point by data line
Analysis system 6 and data processing computer 7；
Step 5 starts exciting, opens motor 24 and switchs, gravitation ball 1 is mentioned to specified altitude assignment；It is artificial to tap t type rapidly
The hammer lever 252 of unhook, 1 whereabouts exciting of gravitation ball；
Collected exciting acceleration a is analyzed to obtain exciting force F, velocity of wave propagation V, it is bent to carry out V/F admittance by step 6
Line analysis obtains pile integrity detection result.
Above disclosed is only the preferred embodiment of the utility model, certainly cannot be practical new to limit this with this
The interest field of type, therefore equivalent variations made according to the patent scope of the utility model still belong to the utility model and are covered
Range.
Claims (8)
1. a kind of hole drilling type existing building pile's integrity testing device, which is characterized in that including gravitation ball, electric hoisting frame,
Acceleration transducer, velocity sensor, signal picker, data analysis system and data processing computer, the acceleration pass
Sensor is mounted on the gravitation ball, and the velocity sensor is mounted on the top surface of pile foundation, the velocity sensor and it is described plus
Velocity sensor is connect with the data collection terminal of the signal picker respectively, the data output end of the signal picker and institute
The data input pin connection of data analysis system is stated, the data output end of the data analysis system and the data processing calculate
Machine connection, the electric hoisting frame include the bracket that liftable is adjusted and lifting component, and the lifting component includes line roller, messenger wire
And motor, the line roller are rotatably connected to the top of the bracket, the motor is fixed on the top of the bracket, described
The power output end of motor is connect with the line roller, and for the messenger wire on the line roller, the end of the messenger wire is equipped with t shape
It breaks off relations, the hanging ring for connection of breaking off relations with the t shape is installed at the top of the gravitation ball, bracket gravitation ball described in hanging
Direction is equipped with gag lever post, and the gag lever post is equipped with the limit hole passed through for the messenger wire, and it includes L shape that the t shape, which breaks off relations,
The upper end of bar and hammer lever, the L shape bar is connect with the messenger wire, and the lower end of the L shape bar is connect with the hanging ring, the hammer
The top that bar is horizontally fixed on the L shape bar is hit, when the hammer lever is tapped by external force, the t shape unhook can be with institute
Stating limit hole is that fulcrum is swung, and the lower end of the L shape bar and the hanging ring are detached from, gravitation ball free-falling.
2. hole drilling type existing building pile's integrity testing device as described in claim 1, which is characterized in that held for having
At the top of the pile foundation of platform, it is equipped with acquisition hole in 2/3rds radial positions of central axis of the cushion cap apart from the pile foundation,
The bottom surface in the acquisition hole is the top surface of the pile foundation.
3. hole drilling type existing building pile's integrity testing device as claimed in claim 2, which is characterized in that the acquisition hole
Bottom surface be equipped with one layer of fast hard mortar, the upper surface of fast mortar firmly is installed with steel plate, and the velocity sensor passes through magnetic attracting device
It is adsorbed on the steel plate.
4. hole drilling type existing building pile's integrity testing device as described in claim 1, which is characterized in that held for having
At the top of the pile foundation of platform, the cushion cap is equipped with exciting hole at the axial centerline of the pile foundation, and the bottom surface in the exciting hole is
The top surface of the pile foundation.
5. hole drilling type existing building pile's integrity testing device as claimed in claim 4, which is characterized in that the exciting hole
Bottom surface be equipped with one layer of fast hard mortar, the upper surface of fast mortar firmly is installed with backing plate.
6. hole drilling type existing building pile's integrity testing device as described in claim 1, which is characterized in that the acceleration
Sensor is mounted on the top of the gravitation ball, and is located in the surrounded space of the hanging ring.
7. hole drilling type existing building pile's integrity testing device as described in claim 1, which is characterized in that the acceleration
Sensor is equipped with wireless transmitter module, and the signal picker is equipped with the wireless receiving mould to match with the wireless transmitter module
Block.
8. hole drilling type existing building pile's integrity testing device as described in claim 1, which is characterized in that the hammer lever
Length be greater than the limit hole aperture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822196031.5U CN209353384U (en) | 2018-12-25 | 2018-12-25 | A kind of hole drilling type existing building pile's integrity testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822196031.5U CN209353384U (en) | 2018-12-25 | 2018-12-25 | A kind of hole drilling type existing building pile's integrity testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209353384U true CN209353384U (en) | 2019-09-06 |
Family
ID=67800734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822196031.5U Expired - Fee Related CN209353384U (en) | 2018-12-25 | 2018-12-25 | A kind of hole drilling type existing building pile's integrity testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209353384U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116201182A (en) * | 2023-03-08 | 2023-06-02 | 湖北省地质实验测试中心(国土资源部武汉矿产资源监督检测中心) | Low-strain hammering device for large-diameter ultra-long pile and application method of low-strain hammering device |
-
2018
- 2018-12-25 CN CN201822196031.5U patent/CN209353384U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116201182A (en) * | 2023-03-08 | 2023-06-02 | 湖北省地质实验测试中心(国土资源部武汉矿产资源监督检测中心) | Low-strain hammering device for large-diameter ultra-long pile and application method of low-strain hammering device |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190906 |
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| CF01 | Termination of patent right due to non-payment of annual fee |