CN205475366U - Foundation pile hangs down strain detection device - Google Patents
Foundation pile hangs down strain detection device Download PDFInfo
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- CN205475366U CN205475366U CN201620059051.6U CN201620059051U CN205475366U CN 205475366 U CN205475366 U CN 205475366U CN 201620059051 U CN201620059051 U CN 201620059051U CN 205475366 U CN205475366 U CN 205475366U
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- foundation pile
- hammer
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- pipe
- low strain
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Abstract
The utility model discloses a foundation pile hangs down strain detection device, including the signal acquisition appearance, the power hammer, it is placed in the pile bolck top of the foundation pile that awaits measuring, survey buret includes the push pipe, well pipe and the bottom tube that link to each other, and the cover is equipped with the plastics pipe box on survey buret's the outer wall, and survey buret is pre -buried, and just its axis is unanimous with the axis of the foundation pile that awaits measuring in the foundation pile that awaits measuring, signal receiver, including a signal receiver and the 2nd signal receiver, a signal receiver pastes and is connected with the signal acquisition appearance in the pile bolck of the foundation pile that awaits measuring and its output, and the 2nd signal receiver places to move in surveying buret and along the axis of surveying buret and sets up, and the 2nd signal receiver's output and signal acquisition appearance are connected. The utility model discloses comparing in prior art, adopting the first signal receiving arrangement and second signal receiving arrangement's combination, can contrast, improve the measuring accuracy, the plastics pipe box can make survey buret have corrosion -resistant, abrasion resistance, safe and reliable more.
Description
Technical field
This utility model belongs to construction detection technique field, and being specifically related to that a kind of foundation pile is low should
Become detection device.
Background technology
Pile foundation is the main of the engineering construction employings such as skyscraper, Factory Building, bridge, port and pier
One of base form, belongs to concealed work scope, and its quality good or not is directly connected to whole building
Safety.Just because of pile foundation is buried concealed work, its quality is wayward, relatively holds
The various quality problems of impact safe handling easily occur, pile detection as after constructing with make
By the important step of front acceptance of concealed work, for ensureing that the safety and stability of whole engineering construction plays
Highly important effect.
A kind of method of pile integrity detection is sound wave transmission method, and its principle is: pre-at pile body
Burying a number of sound detecting pipe, by the coupling of water, ultrasound wave is launched from a test tube,
Another root sound detecting pipe receives, measures the parameters,acoustic of detected concrete medium, by analyzing quilt
The change surveying concrete acoustic characteristic parameter differentiates the integrity of pile concrete between sound detecting pipe.
Sound detecting pipe pre-buried in this method is susceptible to clogging, and this brings difficulty for detection process
Degree.
Low strain dynamic pile integrity detection uses reflective wave method, and its principle is: using stake as one-dimensional
Rod member, elastic wave during longitudinal propagation, passes to another kind of natural impedance from a kind of medium in bar
During different medium, at its interface ripple by generation reflection and transmission；When stress wave passes through cross section
During the interface that long-pending generation changes suddenly, also by generation reflection and transmission；The interface of different shape (as
Expanding, undergauge, isolation and the various defects such as broken pile) form of its echo is different.Echo
Method i.e. judges pile quality according to the echo of the different shape received at stake apical grafting.Common
Low strain dynamic pile integrity detection, in order to not destroy foundation pile structure, only receives echo letter at stake apical grafting
Number, because the complexity of quality problems occurs in foundation pile, just draw merely with this kind of reflection wave signal
There is the conclusion of certain quality problems and there is certain error in foundation pile, measurement result does not prepares.
Therefore, a kind of measurement result Low Strain Dynamic Testing of Piles device accurately is needed badly.
Utility model content
In order to solve above-mentioned technical problem, this utility model provides a kind of Low Strain Dynamic Testing of Piles
Device.
In order to achieve the above object, the technical solution of the utility model is as follows:
This utility model provides a kind of Low Strain Dynamic Testing of Piles device, including:
Signal sampler；
Power is hammered into shape, and it is positioned over above the stake top of foundation pile to be measured；
Measure pipe, manage including the push pipe being connected, middle pipe and the end, measure and be arranged with on the outer wall of pipe
Plastic pipe sleeve, measures pipe and is embedded in foundation pile to be measured and the axis one of its axis and foundation pile to be measured
Cause；
Signal receiving device, receives device including the first signal receiving device and secondary signal, the
One signal receiving device is pasted on the stake top of foundation pile to be measured and its outfan with signal sampler even
Connecing, secondary signal receives in device is positioned over measurement pipe and moves setting along the axis measuring pipe,
Secondary signal receives the outfan of device and is connected with signal sampler.
This utility model, compared to prior art, uses the first signal receiving device and secondary signal
Receive the combination of device, can contrast, thus improve the accuracy of measurement, measure meanwhile
It is arranged with plastic pipe sleeve so that measure pipe and there is corrosion-resistant, mar proof, more on the outer wall of pipe
Add safe and reliable.
Wherein, it is that low strain dynamic passes that the first above-mentioned signal receiving device and secondary signal receive device
Sensor.
On the basis of technique scheme, also can do and improve as follows:
As preferred scheme, it is additionally provided with displacement transducer and angular transducer, displacement sensing
Device is arranged at secondary signal and receives on device, and angular transducer is arranged on measurement pipe.
Above-mentioned preferred scheme, angular transducer detection is used to measure the axis angle of pipe, thus
Judge that the axis measuring pipe is the most consistent with the axis of foundation pile to be measured；Displacement transducer detection second
The position of signal receiving device, thus judge the position of test point, it is simple to result is contrasted
Analyze, improve the accuracy measured.
As preferred scheme, above-mentioned power hammer includes hammering set, suspension arrangement, handle and tup into shape,
Suspension arrangement is arranged in hammer overlaps and its top and is arranged at hammer and puts, and tup is arranged at suspension arrangement
Bottom and be positioned at the outside of hammer set, handle is arranged in suspension arrangement and is connected with tup.
Wherein, suspension arrangement includes Flexible Connector and hammer folder, and the top of Flexible Connector is arranged
Putting in hammer, hammer sandwiched is placed in the bottom of Flexible Connector, and tup is arranged on hammer folder, handle
It is connected with hammer folder.
Using above-mentioned preferred scheme, rational in infrastructure, easy installation and removal, meanwhile, tup sets
It is placed on hammer folder, is easy to replace after tup weares and teares.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of this utility model.
Wherein, 10. signal sampler, 20. power hammers, 30. measure pipe, and 40. first signals receive dress
Putting, 41. secondary signals receive device, 50. foundation piles to be measured.
Detailed description of the invention
Describe preferred implementation of the present utility model below in conjunction with the accompanying drawings in detail.
In order to reach the purpose of this utility model, as it is shown in figure 1, of the present utility model wherein
A kind of embodiment provides a kind of Low Strain Dynamic Testing of Piles device, including:
Signal sampler 10；
Power hammer 20, it is positioned over above the stake top of foundation pile 50 to be measured；
Measure pipe 30, manage including the push pipe being connected, middle pipe and the end, measure on the outer wall of pipe 30
Be arranged with plastic pipe sleeve (not shown), measure pipe 30 be embedded in foundation pile 50 to be measured and
Its axis is consistent with the axis of foundation pile 50 to be measured；
Signal receiving device, receives device including the first signal receiving device 40 and secondary signal
41, the first signal receiving device 40 is pasted on the stake top of foundation pile 50 to be measured and its outfan and letter
Number Acquisition Instrument 10 connects, and secondary signal receives in device 41 is positioned over measurement pipe 30 and along surveying
The axis of buret 30 moves setting, and secondary signal receives outfan and the signals collecting of device 41
Instrument 10 connects.
Present embodiment, compared to prior art, uses the first signal receiving device 40 and second
The combination of signal receiving device 41, can contrast, thus improves the accuracy of measurement, with
Time, measure pipe 30 outer wall on be arranged with plastic pipe sleeve so that measure pipe 30 have corrosion-resistant,
Mar proof, more safe and reliable.
Wherein, it is low that the first above-mentioned signal receiving device 40 and secondary signal receive device 41
Strain transducer.
In order to optimize implementation result of the present utility model further, of the present utility model another
Plant in embodiment, on the basis of foregoing teachings, be additionally provided with displacement transducer (in figure not
Illustrate) and angular transducer (not shown), displacement transducer is arranged at secondary signal and connects
On receiving apparatus 41, angular transducer is arranged on measurement pipe 30.
Above-mentioned preferred scheme, angular transducer detection is used to measure the axis angle of pipe 30,
Thus judge that the axis measuring pipe 30 is the most consistent with the axis of foundation pile 50 to be measured；Displacement sensing
Device detection secondary signal receives the position of device 41, thus judges the position of test point, it is simple to
Result is analyzed, improves the accuracy measured.
In order to optimize implementation result of the present utility model further, of the present utility model another
Planting in embodiment, on the basis of foregoing teachings, above-mentioned power hammer 20 includes hammer set, hangs
Hang device, handle and tup, suspension arrangement is arranged in hammer overlaps and its top and is arranged at hammer and puts,
Tup is arranged at the bottom of suspension arrangement and is positioned at the outside of hammer set, and handle is arranged at suspension arrangement
In and be connected with tup.
Wherein, suspension arrangement includes Flexible Connector and hammer folder, and the top of Flexible Connector is arranged
Putting in hammer, hammer sandwiched is placed in the bottom of Flexible Connector, and tup is arranged on hammer folder, handle
It is connected with hammer folder.
Using above-mentioned preferred scheme, rational in infrastructure, easy installation and removal, meanwhile, tup sets
It is placed on hammer folder, is easy to replace after tup weares and teares.
Above-described is only preferred implementation of the present utility model, it is noted that for this
For the those of ordinary skill in field, on the premise of creating design without departing from this utility model,
Can also make some deformation and improvement, these broadly fall into protection domain of the present utility model.
Claims (5)
1. a Low Strain Dynamic Testing of Piles device, it is characterised in that including:
Signal sampler；
Power is hammered into shape, and it is positioned over above the stake top of foundation pile to be measured；
Measure pipe, manage including the push pipe being connected, middle pipe and the end, sheathed on the outer wall of described measurement pipe
Plastic pipe sleeve, described measurement pipe is had to be embedded in foundation pile to be measured and the axis of its axis and foundation pile to be measured
Unanimously；
Signal receiving device, receives device including the first signal receiving device and secondary signal, described
First signal receiving device is pasted on the stake top of foundation pile to be measured and its outfan and described signal sampler
Connecting, described secondary signal reception device is positioned over described axle in measuring pipe and along described measurement pipe
Line moves setting, and described secondary signal receives the outfan of device and is connected with described signal sampler.
Low Strain Dynamic Testing of Piles device the most according to claim 1, it is characterised in that described
It is low strain dynamic sensor that one signal receiving device and secondary signal receive device.
Low Strain Dynamic Testing of Piles device the most according to claim 2, it is characterised in that also set up
Have displacement transducer and angular transducer, institute's displacement sensors to be arranged at described secondary signal to receive
On device, described angular transducer is arranged on described measurement pipe.
Low Strain Dynamic Testing of Piles device the most according to claim 1, it is characterised in that described power
Hammer includes hammering set, suspension arrangement, handle and tup into shape, and described suspension arrangement is arranged in described hammer set
And its top is arranged at described hammer and puts, described tup is arranged at bottom and the position of described suspension arrangement
In the outside of described hammer set, in described handle is arranged at described suspension arrangement and it is connected with described tup.
Low Strain Dynamic Testing of Piles device the most according to claim 2, it is characterised in that described outstanding
Hang device includes Flexible Connector and hammer folder, and the top of described Flexible Connector is arranged at described hammer set
On, described hammer sandwiched is placed in the bottom of described Flexible Connector, and described tup is arranged at described hammer folder
On, described handle is connected with described hammer folder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620059051.6U CN205475366U (en) | 2016-01-21 | 2016-01-21 | Foundation pile hangs down strain detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620059051.6U CN205475366U (en) | 2016-01-21 | 2016-01-21 | Foundation pile hangs down strain detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205475366U true CN205475366U (en) | 2016-08-17 |
Family
ID=56638055
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620059051.6U Active CN205475366U (en) | 2016-01-21 | 2016-01-21 | Foundation pile hangs down strain detection device |
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| CN (1) | CN205475366U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106592654A (en) * | 2016-12-28 | 2017-04-26 | 张继红 | Monitoring method for perpendicularity of steel pipe pile |
| CN107246840A (en) * | 2017-07-14 | 2017-10-13 | 浙江大学 | A kind of dynamic strain measuring method based on piezo-electric effect |
| CN107326943A (en) * | 2017-08-14 | 2017-11-07 | 厦门市工程检测中心有限公司 | A kind of method that low strain dynamic for realizing pile foundation gathers signal conformance |
| CN108487337A (en) * | 2018-04-21 | 2018-09-04 | 宁波亿诺维信息技术有限公司 | Geotechnical engineering reflection wave method system |
| CN110173006A (en) * | 2019-05-15 | 2019-08-27 | 浙江大学 | The stake top of foundation pile, Kong Zhongshuan measuring point low strain integrity test device and method |
-
2016
- 2016-01-21 CN CN201620059051.6U patent/CN205475366U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106592654A (en) * | 2016-12-28 | 2017-04-26 | 张继红 | Monitoring method for perpendicularity of steel pipe pile |
| CN107246840A (en) * | 2017-07-14 | 2017-10-13 | 浙江大学 | A kind of dynamic strain measuring method based on piezo-electric effect |
| CN107326943A (en) * | 2017-08-14 | 2017-11-07 | 厦门市工程检测中心有限公司 | A kind of method that low strain dynamic for realizing pile foundation gathers signal conformance |
| CN108487337A (en) * | 2018-04-21 | 2018-09-04 | 宁波亿诺维信息技术有限公司 | Geotechnical engineering reflection wave method system |
| CN110173006A (en) * | 2019-05-15 | 2019-08-27 | 浙江大学 | The stake top of foundation pile, Kong Zhongshuan measuring point low strain integrity test device and method |
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| GR01 | Patent grant |