CN209353385U - A kind of existing building pile's integrity testing device that can repeat hammering automatically - Google Patents
A kind of existing building pile's integrity testing device that can repeat hammering automatically Download PDFInfo
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- CN209353385U CN209353385U CN201822196032.XU CN201822196032U CN209353385U CN 209353385 U CN209353385 U CN 209353385U CN 201822196032 U CN201822196032 U CN 201822196032U CN 209353385 U CN209353385 U CN 209353385U
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- existing building
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- electric machine
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- 238000011016 integrity testing Methods 0.000 title claims abstract description 17
- 238000001514 detection method Methods 0.000 claims abstract description 26
- 230000001133 acceleration Effects 0.000 claims abstract description 17
- 238000007405 data analysis Methods 0.000 claims abstract description 9
- 238000013480 data collection Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 13
- 238000004458 analytical method Methods 0.000 abstract description 6
- 238000010276 construction Methods 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 abstract description 4
- 230000035939 shock Effects 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 abstract description 3
- 238000007689 inspection Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012491 analyte Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000005553 drilling 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
- 230000001960 triggered effect Effects 0.000 description 1
Landscapes
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model relates to a kind of existing building pile's integrity testing devices that can repeat hammering automatically, pass through the setting of electric hoisting frame, it realizes to the adjusting of weight height and position and the calibration of drop point site, the free-falling of weight energy applies impact load to existing building pile foundation, weight repeatedly continuous exciting is realized by electric machine control system, weight 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, in the case where can effectively solve existing construction foundation and being influenced its safety by force majeure, the existing building foundation pile encounter during pile measurement is difficult to the problem of being detected, existing building is destroyed smaller, it is enhanced in a manner of repeatedly hammering pair The recognition capability of fine defects improves the degree of automation and detection accuracy in detection process, shortens detection time, reduce testing cost.
Description
Technical field
The utility model belongs to building pile foundation quality testing field, can repeat to hammer automatically more specifically to one kind
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, and since number of taps is insufficient, dynamics is uneven, lack repeatability compared with
Good exciting mode, so that the recognition capability to fine defects is poor；For Large strain method, sensor is installed and weight taps
Not may；Ultrasonic method detection needs embedded sound detecting pipe, even if foundation pile is embedded with sound detecting pipe when being poured, examines in foundation pile
It after survey, has generally also been destroyed in foundation construction, therefore, the pile detection for existing building is also that can not carry out；Drill core
Method detection, it is destructive serious, it cannot achieve substantially.
Utility model content
The technical issues of the utility model solves is when existing building needs to carry out pile detection, and what is encountered can not carry out
The problem of pile's integrity testing, provides a kind of pair of existing building and destroys small, and easy to operate, detection accuracy is high to be weighed automatically
The existing building pile's integrity testing device hammered again.
In order to solve the above-mentioned technical problem, the utility model provides a kind of existing building pile foundation that can repeat hammering automatically
Integrity detection device comprising weight, electric hoisting frame, acceleration transducer, velocity sensor, signal picker, data
Analysis system and electric machine control system, the acceleration transducer are mounted on the weight, and the velocity sensor is mounted on
The top surface of pile foundation, the velocity sensor and the acceleration transducer connect with the data collection terminal of the signal picker respectively
It connects, the data output end of the signal picker is connect with the data analysis system, and the electric hoisting frame includes liftable
The bracket and lifting component of adjusting, the lifting component includes line roller, messenger wire and motor, and the line roller is rotatably connected to institute
The top of bracket is stated, the motor is fixed on the top of the bracket, and the power output end of the motor is connect with the line roller,
On the line roller, the end of the messenger wire is connect the messenger wire with the weight, bracket weight described in hanging
Direction be equipped with gag lever post, the gag lever post is equipped with the limit hole that passes through for the messenger wire, the electric machine control system
Including electric machine controller and limit switch, the limit switch be mounted on it is on the gag lever post and mutually close with the limit hole,
The limit switch is connect with the electric machine controller, and the electric machine controller is connect with the motor, when the weight is promoted
When to the gag lever post, the weight is contacted with the limit switch, and the electric machine controller controls the motor idle running, is discharged
The weight free-falling, after the motor dallies setting time, the electric machine controller controls the motor load rotation,
The weight is sling to reset.
As the preferred scheme of the utility model, the velocity sensor is mounted on the central axis apart from the pile foundation
2/3rds radial positions.
As the preferred scheme of the utility model, the detection faces of the velocity sensor are fitted in the stake by couplant
The top surface of base.
As the preferred scheme of the utility model, the weight is set to the surface of the center of the pile foundation.
As the preferred scheme of the utility model, the center position at the top of the pile foundation is equipped with rubber pad.
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.
A kind of existing building pile's integrity testing device that can repeat hammering automatically for implementing the utility model, and it is existing
Technology compares, and has the following beneficial effects:
The utility model passes through the setting of electric hoisting frame, realizes to the adjusting of weight height and position and the school of drop point site
Standard, the free-falling of weight energy apply impact load to existing building pile foundation, realize that weight is repeatedly continuous by electric machine control system
Exciting, detects weight exciting force F signal by acceleration transducer, detects propagation of the shock wave through pile body by velocity sensor
Speed V signal carries out the analysis of V/F mechanical admittance curves by data analysis system, obtains pile integrity detection as a result, it is possible to effectively
In the case that ground solution existing construction foundation is influenced its safety by force majeure, encounter both during pile measurement
There is architecture foundation pile to be difficult to the problem of being detected, it is smaller to existing building destruction, it is enhanced in a manner of repeatedly hammering to subtle
The recognition capability of defect improves the degree of automation and detection accuracy in detection process, shortens detection time, reduces inspection
Survey cost.
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 the existing building pile's integrity testing device that one kind provided by the utility model can repeat hammering automatically
Structural schematic diagram；
Fig. 2 is the structural schematic diagram of electric hoisting frame.
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.
Referring to figure 1 and figure 2, the preferred embodiment of the utility model, a kind of existing building that can repeat hammering automatically
Pile's integrity testing device comprising weight 1, electric hoisting frame 2, acceleration transducer 3, velocity sensor 4, signal acquisition
Device 5, data analysis system 6 and electric machine control system, the acceleration transducer 3 are mounted on the weight 1, and the speed passes
Sensor 4 is mounted on the top surface of pile foundation 9, the velocity sensor 4 and the acceleration transducer 3 respectively with the signal picker
5 data collection terminal connection, the data output end of the signal picker 5 is connect with the data analysis system 6, described electronic
Upending frame 2 includes the bracket 21 that liftable is adjusted and lifting component, and 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 power output end of the motor 24 is connect with the line roller 22, and the messenger wire 23 is on the line roller 22, the messenger wire
23 end is connect with the weight 1, and gag lever post 25, the limit are equipped on the direction of weight 1 described in hanging of bracket 21
Position bar 25 is equipped with the limit hole 26 passed through for the messenger wire 23, and the electric machine control system includes electric machine controller 7 and limit
Bit switch 8, the limit switch 8 are mounted on the gag lever post 25 and mutually close with the limit hole 26, the limit switch 8
It is connect with the electric machine controller 7, the electric machine controller 7 is connect with the motor 24, when the weight 1 is promoted to the limit
When the bar 25 of position, the weight 1 is contacted with the limit switch 8, and the electric machine controller 7 controls the motor 24 and dallies, release
1 free-falling of weight, after the motor 24 dallies setting time, it is negative that the electric machine controller 7 controls the motor 24
Idling is dynamic, slings the weight 1 and resets.
The utility model passes through the setting of electric hoisting frame 2 as a result, realizes the adjusting to 1 height and position of weight and drop point
The calibration of position, 1 energy free-falling of weight apply impact load to existing building pile foundation, realize weight by electric machine control system
More than 1 continuous exciting, detects 1 exciting force F signal of weight by acceleration transducer 3, detects shock wave by velocity sensor 4
Spread speed V signal through pile body carries out the analysis of V/F mechanical admittance curves by data analysis system 6, obtains pile integrity detection
As a result, it is possible to efficiently solve in the case that existing construction foundation influenced its safety by force majeure, pile measurement is carried out
The existing building foundation pile encountered in the process is difficult to the problem of being detected, smaller to existing building destruction, with the side repeatedly hammered
Formula enhances the recognition capability to fine defects, improves the degree of automation and detection accuracy in detection process, shortens inspection
The time is surveyed, testing cost is reduced.
Illustratively, the velocity sensor 4 is mounted on 2/3rds radius positions of the central axis apart from the pile foundation 9
Set place；The detection faces of the velocity sensor 4 are fitted in the top surface of the pile foundation 9 by couplant, to ensure to acquire signal
Accuracy；The weight 1 is set to the surface of the center of the pile foundation 9；The center position at the top of the pile foundation 9
Equipped with rubber pad 10, to prevent weight 1 from damaging to pile foundation top.
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.
Using a kind of existing building pile's integrity testing device that can repeat hammering automatically of the utility model, detection
Step includes the following:
Step 1 places rubber pad 10 in the center of pile foundation 9；
Step 2 is adding couplant at about 2/3 position of 9 center of pile foundation, then disposes velocity sensor 4 vertically
In top (namely cushion cap) surface of foundation pile；
Step 3 installs electric hoisting frame 2 and weight 1, electric hoisting frame 2 is set up in the top of pile foundation 9, by messenger wire 23
Weight 1 is connected across limit hole 26, adjust the height and position of electric hoisting frame 2 and calibrates the drop point site of weight 1, so that weight
1 can accurate exciting pile foundation 9 center；
Step 4 connects acceleration transducer 3, velocity sensor 4, signal picker 5, data point by data line
Analysis system 6 and electric machine control system；
Step 5 starts exciting, opens the switch on electric machine controller 7, and controller control motor lifts weight 1,
When weight 1 is mentioned to limit hole 26, limit switch 8 is triggered, electric machine controller 7 cuts off the current supply circuit of motor 24, motor 24
Idle running, 1 free-falling of weight generate exciting after contacting to earth；
Step 6, electric machine controller 7 control motor 24 again and promote weight 1, hammered next time after waiting 5s,
The waiting time of electric machine controller 7 and hammer number can be arranged according to the actual situation；
Collected multiple groups exciting acceleration a is carried out Conversion Analysis by step 7, obtains average exciting force F, and wave propagates speed
V is spent, the analysis of V/F mechanical admittance curves is carried out, by admittance magnitude function, comprehensive descision is carried out to pile body integrity, show that pile body is complete
Property testing 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 (6)
1. the existing building pile's integrity testing device that one kind can repeat hammering automatically, which is characterized in that including weight, electronic
Upending frame, acceleration transducer, velocity sensor, signal picker, data analysis system and electric machine control system, the acceleration
Degree sensor is mounted on the weight, and the velocity sensor is mounted on the top of pile foundation, the velocity sensor and described
Acceleration transducer is connect with the data collection terminal of the signal picker respectively, the data output end of the signal picker with
The data analysis system connection, the electric hoisting frame include the bracket that liftable is adjusted and lifting component, the lifting group
Part includes line roller, messenger wire and motor, and the line roller is rotatably connected to the top of the bracket, and the motor is fixed on described
The top of bracket, the power output end of the motor are connect with the line roller, and the messenger wire is described to hang on the line roller
The end of line is connect with the weight, gag lever post is equipped on the direction of bracket weight described in hanging, on the gag lever post
Equipped with the limit hole passed through for the messenger wire, the electric machine control system includes electric machine controller and limit switch, the limit
Bit switch is mounted on the gag lever post and mutually close with the limit hole, the limit switch and electric machine controller company
It connecing, the electric machine controller is connect with the motor, when the weight is promoted to the gag lever post, the weight and the limit
Bit switch contact, the electric machine controller control the motor idle running, discharge the weight free-falling, when the motor dallies
After setting time, the electric machine controller controls the motor load rotation, slings the weight and resets.
2. the existing building pile's integrity testing device of hammering can be repeated automatically as described in claim 1, which is characterized in that
The velocity sensor is mounted on 2/3rds radial positions of the central axis apart from the pile foundation.
3. the existing building pile's integrity testing device of hammering can be repeated automatically as claimed in claim 2, which is characterized in that
The detection faces of the velocity sensor are fitted in the top surface of the pile foundation by couplant.
4. the existing building pile's integrity testing device of hammering can be repeated automatically as described in claim 1, which is characterized in that
The weight is set to the surface of the center of the pile foundation.
5. the existing building pile's integrity testing device of hammering can be repeated automatically as claimed in claim 4, which is characterized in that
The center position at the top of the pile foundation is equipped with rubber pad.
6. the existing building pile's integrity testing device of hammering can be repeated automatically as described in claim 1, which is characterized in that
The acceleration transducer is equipped with wireless transmitter module, and the signal picker, which is equipped with, to match with the wireless transmitter module
Wireless receiving module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822196032.XU CN209353385U (en) | 2018-12-25 | 2018-12-25 | A kind of existing building pile's integrity testing device that can repeat hammering automatically |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822196032.XU CN209353385U (en) | 2018-12-25 | 2018-12-25 | A kind of existing building pile's integrity testing device that can repeat hammering automatically |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209353385U true CN209353385U (en) | 2019-09-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822196032.XU Expired - Fee Related CN209353385U (en) | 2018-12-25 | 2018-12-25 | A kind of existing building pile's integrity testing device that can repeat hammering automatically |
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| Country | Link |
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| CN (1) | CN209353385U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114965689A (en) * | 2022-04-24 | 2022-08-30 | 浙江省建设工程质量检验站有限公司 | Automatic vibration hammer for side-hole transmission wave method pile foundation detection |
-
2018
- 2018-12-25 CN CN201822196032.XU patent/CN209353385U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114965689A (en) * | 2022-04-24 | 2022-08-30 | 浙江省建设工程质量检验站有限公司 | Automatic vibration hammer for side-hole transmission wave method pile foundation detection |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190906 |