CN104818735B - Detect drill bit and the method carrying out pile measurement using this detection drill bit - Google Patents
Detect drill bit and the method carrying out pile measurement using this detection drill bit Download PDFInfo
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- CN104818735B CN104818735B CN201510185806.7A CN201510185806A CN104818735B CN 104818735 B CN104818735 B CN 104818735B CN 201510185806 A CN201510185806 A CN 201510185806A CN 104818735 B CN104818735 B CN 104818735B
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- drill bit
- cymoscope
- detection
- accelerometer
- pipe fitting
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- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The present invention relates to pile foundation detection field, detect drill bit particularly to a kind of, detection drill bit opens up fluted, in groove, accommodate accelerometer or cymoscope；Detect and in drill bit, be provided with the first connecting wire, one end of the first connecting wire connects accelerometer or cymoscope, and the other end connects signal sampler；The method also relating to carry out pile measurement using this detection drill bit.Accelerometer or cymoscope are integrated on detection drill bit, so while boring, realize echo detecting, the method is simple to operation, sleeve pipe, the gap that need not fill between sleeve pipe and the wall of a borehole need not be buried, and the exciting ripple that sends of exciting source is directly over pile body, accelerated degree meter or cymoscope are received after soil around pile, it is to avoid the weak phenomenon of echo-signal that communication process medium excessively leads to.
Description
Technical field
The present invention relates to pile foundation detection field, carry out particularly to a kind of detection drill bit and using this detection drill bit
The method of pile measurement.
Background technology
Pile foundation as the important component part of engineering structure, for superstructure load is delivered in Rock soil Foundation, its
Quality condition plays vital effect to guaranteeing engineering structure safe operation.It is in the pile foundation top of service phase engineering structure
There are other structures it is impossible to detect to it using the pile measurement means that the construction time is commonly used, in order to solve military service engineering
The pile foundation technology condition detection of structure, evaluation problem, Chinese scholars are passed through to have researched and proposed side hole transmitted wave method, and have developed
Corresponding instrument equipment, has worked out detection technique standard.
Side hole transmitted wave method testing equipment generally comprises：Exciting source, sensor and signal sampler.Exciting source is using reflection
The hand hammer of ripple method detection, power rod, sensor adopts vibrating sensor or the cymoscope of waterproof, and signal sampler receives sensor
The signal that collects simultaneously is processed.Transmission instrument in side hole carries out detection to pile foundation and generally comprises the steps：(A) by pile foundation to be measured
Vertical boring；(B) bury sleeve pipe in the borehole；(C) sensor is transferred along along the sleeve pipe fill clear water with a determining deviation, sensing
Device receives and is delivered to the stress wave of receiving point from stake top exciting and exports to signal sampler；(D) signal sampler is collected
Data be analyzed can achieve detection, the evaluation of pile foundation.There is many deficiencies in existing detection technique：
(1) detection process includes boring, embedded sleeve pipe, boring are coupled with sleeve pipe, fresh water pouring, the multiple ring of on-the-spot test
Section, detection process operation is more, couple execute-in-place relatively difficult, longevity of service, the testing expense height of boring and sleeve pipe；
(2) space between sleeve pipe and the wall of a borehole needs to fill, and both coupling effects are difficult to ensure that；(3) need in sleeve pipe when testing to note
Qing Dynasty's water as couplant, if in sleeve pipe for muddy water, substantially will even increase SATT and extend the propagation time, impact
Detection results, meanwhile, the change of depth, corresponding to different turbidities, affects effect and the precision measuring further；(4) exciting
The elastic wave producing is sensed after being propagated with sleeve pipe coupling layer → this process of casing wall → clear water through pile body → soil layer → hole wall
Device receives, and in communication process, different medium classification is more, and extended media will produce echo, refracted wave, reduce transmission
Wave energy, changes the propagation path of ripple, increased Data Management Analysis difficulty.
As can be seen that current boring with detect detached side hole transmission beam method measuring technology, detection process complexity, costly,
The factor of impact test effect is many, is unfavorable for using the method, pile foundation quality being used for quickly detecting.
Content of the invention
The primary and foremost purpose of the present invention is to provide a kind of detection drill bit, reduces side hole transmission beam method operation easier, improves detection
Efficiency and precision.
For realizing object above, the technical solution used in the present invention is：A kind of detection drill bit, detection drill bit offers recessed
Groove, accommodates accelerometer or cymoscope in groove；Detect and in drill bit, be provided with the first connecting wire, the one of the first connecting wire
End connects accelerometer or cymoscope, and the other end connects signal sampler.
Compared with prior art, there is following technique effect in the present invention：Accelerometer or cymoscope are integrated in detection bore
On head, so while boring, realize echo detecting, sleeve pipe need not be arranged, significantly optimizing detection process, reduce detection
Expense and cost.
Further object is that providing a kind of method carrying out pile measurement using detection drill bit, reduce side hole
Transmission beam method operation easier, improves detection efficiency and precision.
For realizing object above, the technical solution used in the present invention is：One kind carries out pile foundation inspection using foregoing detection drill bit
The method surveyed, comprises the steps：(A) arrange exciting source at the top of pile foundation or sidepiece；(B) using with accelerometer or inspection
The detection drill bit of ripple device is vertically holed in the other certain distance of pile foundation；(C) boring, exciting source are stopped after often boring lower certain distance
Start exciting, exciting ripple accelerated degree meter or cymoscope after pile body, soil around pile are received；(D) signal sampler collection is visited
The output information of the positional information and accelerometer or cymoscope of surveying drill bit obtains pile foundation quality information after treatment.
Compared with prior art, there is following technique effect in the present invention：Accelerometer or cymoscope are integrated in detection bore
On head, so while boring, realize echo detecting, the method is simple to operation, need not bury sleeve pipe, need not fill sleeve pipe
Gap and the wall of a borehole between, and the exciting ripple that sends of exciting source is directly over pile body, accelerated degree meter or detection after soil around pile
Device is received, it is to avoid the weak phenomenon of echo-signal that communication process medium excessively leads to.
Brief description
Fig. 1 is the sectional view detecting drill bit；
Fig. 2 is the structural representation being detected using detection drill bit.
Specific embodiment
With reference to Fig. 1 to Fig. 2, the present invention is described in further detail.
Refering to Fig. 1, a kind of detection drill bit, detection drill bit 1 opens up fluted, in groove, accommodate accelerometer or detection
Device 10；Detect and in drill bit 1, be provided with the first connecting wire 21, one end of the first connecting wire 21 connects accelerometer or cymoscope
10, the other end connects signal sampler 2.By accelerometer or cymoscope 10 be arranged on detection drill bit 1 on, so, just can to
Under carry out the collection of exciting source 4 echo-signal while holed, realize the quality of side hole transmission beam method detection of pier foundation 3.Pass through
This detection drill bit 1 with accelerometer or cymoscope 10, can be without burying sleeve pipe, without to sleeve pipe and the wall of a borehole again
Between gap be filled with, it is to avoid be lost in echo communication process, improve testing result accuracy.
Preferably, the reception of echo for convenience, described groove is along detecting the annular groove that drill bit 1 circumference opens up,
Accelerometer or cymoscope 10 are in the ring-type matching with annular recess size.
Detect drill bit 1 to improve it is also possible to individually in addition make on the basis of existing static sounding probe.This
In embodiment, described detection drill bit 1 includes conical probe 30 and first and second pipe fitting 40,50, and the two ends of the first pipe fitting 40 are respectively
It is connected with conical probe 30, the second pipe fitting 50 and three's coaxial core arrangement, the periphery wall of the first pipe fitting 40 and conical probe 30, the
The end face of two pipe fittings 50 encloses and constitutes described annular groove.Conical probe 30 mainly facilitate boring, the second pipe fitting 50 be easy to
Sounding rod is connected, and arranges the first pipe fitting 40 between conical probe 30 and the second pipe fitting 50, is convenient arrangement accelerometer or inspection
Ripple device 10.
Preferably, arrange the first connecting wire 21 for convenience, the first described pipe fitting 40 is arranged with accelerometer or inspection
Offer on the periphery wall of ripple device 10 through hole for arrange the first connecting wire 21, through hole opens along the radial direction of the first pipe fitting 40
If so, just the first connecting wire 21 can be entered walking line in the inside detecting drill bit 1.
Existing static sounding probe itself typically all carries foil gauge 60 to gather the relevant information of soil layer, if here
It is only used for during the echo detecting exciting source 4 being not need to arrange foil gauge 60, but, in order to preferably analyze the matter of pile foundation 3
Amount, preferably also sets up foil gauge 60, to soil layer information in the present embodiment.Described conical probe 30 includes taper
31 and pipe section 32, the major diameter side of conical head 31 is connected with one end of pipe section 32, the other end of pipe section 32 and
One pipe fitting 40 is connected；Foil gauge 60 is provided with the inwall of described pipe section 32, one end of the second connecting wire 22 connects strain
Piece 60, the other end connects signal sampler 2.
The working environment of foil gauge 60 needs to seal waterproof, in order to improve reliability and the life-span of foil gauge 60 work, institute
It is perfused with waterproof and sealing material 70 in the tube chamber of pipe section 32, the first pipe fitting 40 and the second pipe fitting 50 stated.Waterproof sealing material
The setting of material 70, also ensures the reliability of accelerometer or cymoscope 10 signal output.
Additionally provide a kind of method that use foregoing detection drill bit carries out pile measurement in the present embodiment, walk including following
Suddenly：(A) arrange exciting source 4 at the top of pile foundation 3 or sidepiece；(B) using the detection drill bit 1 with accelerometer or cymoscope 10
Vertically holed in the other certain distance of pile foundation 3；(C) stop boring after often boring lower certain distance, exciting source 4 starts exciting, swashs
Vibration wave accelerated degree meter or cymoscope 10 after pile body, soil around pile are received；(D) signal sampler 2 collection detects drill bit 1
The output information of positional information and accelerometer or cymoscope 10 obtains pile foundation quality information after treatment.By when holing
Carry out the collection of echo-signal so that the process of detection is more easy, simultaneously as accelerometer or cymoscope 10 and soil around pile
Directly contact, communication process is without going past too many medium, thus institute is impacted very little, the intensity of echo-signal and precision also phase
Increase with answering, so, finally obtained pile foundation quality is also more accurate.
Preferably, in described step B, hole and the distance of pile foundation 3 that detection drill bit 1 is come outbreak out are less than or equal to 2 meters,
Hole bottom depth is more than at least 3 meters of pile foundation 3 bottom depth.Described step D processes as follows and obtains pile foundation quality letter
Breath：(D1) signal sampler 2 is m- when being generated according to the information of the positional information, accelerometer or cymoscope 10 output of exciting source 4
Depth oscillogram；(D2) the Mintrop wave slope-inversion point in m- depth oscillogram when the determining or wave amplitude significantly position at change；(D3)
Pile foundation quality is determined according to the position that each flex point or wave amplitude significantly change.
Claims (6)
1. a kind of detect drill bit it is characterised in that：Detect open up on drill bit (1) fluted, accommodate in groove accelerometer or
Cymoscope (10)；Detect and in drill bit (1), be provided with the first connecting wire (21), one end of the first connecting wire (21) connects acceleration
Degree meter or cymoscope (10), the other end connects signal sampler (2)；Described groove opens up along detecting drill bit (1) circumference
Annular groove, accelerometer or cymoscope (10) are in the ring-type matching with annular recess size；Described detection drill bit (1) bag
Include conical probe (30) and first and second pipe fitting (40,50), the two ends of the first pipe fitting (40) respectively with conical probe (30), second
Pipe fitting (50) is connected and three's coaxial core arrangement, the periphery wall of the first pipe fitting (40) and conical probe (30), the second pipe fitting (50)
End face enclose and constitute described annular groove；Described conical probe (30) includes conical head (31) and pipe section (32), cone
The major diameter side of forming head (31) is connected with one end of pipe section (32), the other end of pipe section (32) and the first pipe fitting (40) phase
Even；Foil gauge (60) is provided with the inwall of described pipe section (32), one end of the second connecting wire (22) connects foil gauge
(60), the other end connects signal sampler (2).
2. as claimed in claim 1 detection drill bit it is characterised in that：Described the first pipe fitting (40) be arranged with accelerometer or
Offer on the periphery wall of cymoscope (10) through hole for arrangement the first connecting wire (21), through hole is along the footpath of the first pipe fitting (40)
Open up to direction.
3. as claimed in claim 1 detection drill bit it is characterised in that：Described pipe section (32), the first pipe fitting (40) and
It is perfused with waterproof and sealing material (70) in the tube chamber of the second pipe fitting (50).
4. a kind of usage right requires the method that the detection drill bit described in 1 carries out pile measurement, comprises the steps：
(A) in the top of pile foundation (3) or sidepiece arrangement exciting source (4)；
(B) vertically bored in the other certain distance of pile foundation (3) using the detection drill bit (1) with accelerometer or cymoscope (10)
Hole；
(C) stop boring after often boring lower certain distance, exciting source (4) starts exciting, and exciting ripple is added after pile body, soil around pile
Velometer or cymoscope (10) are received；
(D) signal sampler (2) collection detects the positional information of drill bit (1) and the output letter of accelerometer or cymoscope (10)
Breath obtains pile foundation quality information after treatment.
5. as claimed in claim 4 using detect drill bit carry out pile measurement method it is characterised in that：Described step B
In, hole and the distance of pile foundation (3) that detection drill bit (1) is come outbreak out are less than or equal to 2 meters, and hole bottom depth is more than pile foundation
(3) at least 3 meters of bottom depth.
6. as claimed in claim 4 using detect drill bit carry out pile measurement method it is characterised in that：Described step D
Process as follows and obtain pile foundation quality information：
(D1) the information life that signal sampler (2) exports according to the positional information of exciting source (4), accelerometer or cymoscope (10)
M- depth oscillogram during one-tenth；
(D2) the Mintrop wave slope-inversion point in m- depth oscillogram when the determining or wave amplitude significantly position at change；
(D3) pile foundation quality is determined according to the position that each flex point or wave amplitude significantly change.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510185806.7A CN104818735B (en) | 2015-04-20 | 2015-04-20 | Detect drill bit and the method carrying out pile measurement using this detection drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510185806.7A CN104818735B (en) | 2015-04-20 | 2015-04-20 | Detect drill bit and the method carrying out pile measurement using this detection drill bit |
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| Publication Number | Publication Date |
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| CN104818735A CN104818735A (en) | 2015-08-05 |
| CN104818735B true CN104818735B (en) | 2017-03-01 |
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| CN201510185806.7A Expired - Fee Related CN104818735B (en) | 2015-04-20 | 2015-04-20 | Detect drill bit and the method carrying out pile measurement using this detection drill bit |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105297788B (en) * | 2015-10-16 | 2017-12-29 | 浙江工业大学 | Method for detecting pile foundation post grouting quality by applying electromagnetic wave CT technology |
| CN108956766B (en) * | 2018-06-09 | 2021-07-16 | 广东穗芳智慧建设科技有限公司 | Pile foundation quality detection method |
| CN108825136B (en) * | 2018-06-09 | 2020-03-31 | 耀华建设管理有限公司 | Building pile foundation detection device |
| CN110130419B (en) * | 2019-05-29 | 2021-02-02 | 华侨大学 | Cement mixing pile construction quality detection device and method |
| CN110924932A (en) * | 2019-12-09 | 2020-03-27 | 中铁第五勘察设计院集团有限公司 | Penetration test equipment and penetration test recorder thereof |
| CN112922046A (en) * | 2021-01-25 | 2021-06-08 | 王美娟 | High pile foundation detection device |
| CN113373908A (en) * | 2021-06-30 | 2021-09-10 | 北京三一智造科技有限公司 | Cast-in-place pile construction method |
| CN116559956B (en) * | 2023-04-28 | 2024-04-16 | 上海勘测设计研究院有限公司 | Submarine seismic wave testing equipment and method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2068678U (en) * | 1990-02-08 | 1991-01-02 | 铁道部科学研究院铁道建筑研究所 | Impact rod for nondestructive testing of foundation piles |
| JP4390670B2 (en) * | 2004-09-17 | 2009-12-24 | ジャパンパイル株式会社 | Calculation method of horizontal rigidity of pile |
| KR100847096B1 (en) * | 2007-03-02 | 2008-08-06 | 대림산업 주식회사 | The foundation strength characteristic and the pile support power calculation method using driving penetration cone and this |
| CN102425192A (en) * | 2011-09-22 | 2012-04-25 | 深圳思量微系统有限公司 | Pile foundation inclination real-time monitoring and prewarning system |
| CN103953076B (en) * | 2014-05-06 | 2016-01-13 | 上海交通大学 | Based on depth determination method at the bottom of the existing engineering pile stake of other hole transmitted wave bathmometry |
| CN204703200U (en) * | 2015-04-20 | 2015-10-14 | 交通运输部公路科学研究所 | Detection drill bit |
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