CN108917620A - The micro-dilapidation testing device of highway engineering concrete component thickness - Google Patents
The micro-dilapidation testing device of highway engineering concrete component thickness Download PDFInfo
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- CN108917620A CN108917620A CN201810689616.2A CN201810689616A CN108917620A CN 108917620 A CN108917620 A CN 108917620A CN 201810689616 A CN201810689616 A CN 201810689616A CN 108917620 A CN108917620 A CN 108917620A
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- 238000012360 testing method Methods 0.000 title claims abstract description 23
- 238000001514 detection method Methods 0.000 claims abstract description 77
- 238000009434 installation Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 230000009467 reduction Effects 0.000 abstract description 4
- 238000007796 conventional method Methods 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000006378 damage Effects 0.000 description 19
- 238000000034 method Methods 0.000 description 16
- 238000005070 sampling Methods 0.000 description 10
- 238000005553 drilling Methods 0.000 description 7
- 238000007689 inspection Methods 0.000 description 7
- 238000005259 measurement Methods 0.000 description 6
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012937 correction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000012372 quality testing Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
- G01B11/06—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
A kind of micro-dilapidation testing device for highway engineering concrete component thickness belongs to highway engineering technical field.The micro-dilapidation testing device includes：Detection bar (1), casing (2), single side protecting line rubber sleeve (3), angle measuring scale bracket (5), angle measuring scale (6), the horizon equipment (7) being respectively placed on detection bar (1), it is placed in the miniature webcam (4) of detection bar (1) lower end, the wheel type encoder (8) being placed on single side protecting line rubber sleeve (3), the data logger (10) being connect respectively with detection bar (1), angle measuring scale (6), wheel type encoder (8) by data line (9).The present invention is reequiped or is prepared according to a conventional method using the product and material of market purchase.The advantages of device of the detection, is：1, concrete component is destroyed small；2, work efficiency is high for detection；3, detection data accuracy is high；4, effects of energy saving and emission reduction is good；5, it is easy to complete the subsequent reparation of rear part for detection.
Description
Technical field：
The present invention relates to the micro-dilapidation testing device of highway engineering concrete component thickness, belongs to highway engineering technical field.
Background technique：
Highway engineering concrete component micro-dilapidation testing is the important link of Highway Engineering Quality Control.Micro-dilapidation testing is
The new quality determining method further to grow up on the basis of traditional damage testing method and nondestructive determination, micro- damaged inspection
The characteristics of survey be can by inspection concrete component on according to detection it needs to be determined that detection position, to by inspection component damage it is small, reduce
It is influenced to by inspection element bearing capacity.It is accurate, direct, objective that testing result has, easy to operate.Micro-dilapidation testing can also simultaneously
Verification method as conventional lossless detection method.Therefore highway engineering concrete component is detected using micro-dilapidation testing method
It can accurate, directly, objectively reflect the defect situation by inspection component inside, while the resource that also can be reduced traditional damage testing disappears
Consumption, to achieve the purpose that improve quality testing accuracy and energy-saving and emission-reduction.
Conventional road engineering concrete component thickness detecting method and device mainly have following two class at present：
1, damage testing method, detection method is to use dedicated core drilling machine and diamond hollow thin-wall drill bit, in structure
Core boring sampling is on concrete to detect a kind of detection method of concrete thickness；
2, drilling core examination method, detection method are to be taken using the mechanically direct drill core that carries out in concrete members of drill core
Sample, core sample directly measure core sample after taking out.
This two classes device is all the conventional equipment of highway engineering component thickness detection at present.But in practical highway engineering component
Apparatus above still has following some problems in Thickness sensitivity use process：
1, concrete component is destroyed big.If damage testing method is after carrying out damage testing to concrete component, due to mixed
Solidifying soil component damage is huge, will be so that component some lost or completely lose bearing capacity, therefore damage testing Fa highway work
Unsuitable large-scale promotion application in the detection of journey component thickness；
2, detection working efficiency is low.When such as being detected using core boring sampling method to concrete thickness, the drilling speed of drill bit
Degree needs to control within a certain period of time, is not easy too fast, and causes local damage to concrete, can cause to element bearing capacity centainly
It influences, therefore core boring sampling method carries out the low unsuitable large-scale promotion application of detection working efficiency to concrete thickness；
3, detection data accuracy is poor.Using damage testing method in component thickness detection process, due to detection faces be by
Concrete fracture is randomly formed, and there are certain angle modification relationships with actual value for measured value, and damage testing method is only capable of to reality
Measured value measures.Using core boring sampling method in component thickness detection process, since measurement core sample is by core drilling machine in coagulation
It drills through to obtain on native component, there are certain angle modification relationships with actual value for core sample thickness measured value, and core boring sampling method is only
Measured value can be measured.
4, time-consuming, energy consumption is high, costly for detection cooperating early period.Component thickness was detected using core boring sampling method
Cheng Zhong need to employ core drilling machine and carry out drill core operation, also need to provide power source of the electric power as core drilling machine, due to part drill core equipment
Also vehicle is needed to assist when having certain mass carrying, and the position of highway engineering is in field mostly, to provide basic drill core item
Part is not a simple thing, therefore to component thickness detection, time-consuming that energy consumption is high using core boring sampling method, unsuitable extensive
It promotes and applies.
5, component damage is repaired difficult after the completion of detecting.To concrete component after the completion of traditional thickness detecting method detection
When being repaired, need to expend a large amount of manpower and material resources, especially damage testing method, can be to component due to huge to component damage
Cause the permanent damage that can not be repaired.
For overcome existing highway engineering component thickness detecting method and device there are the shortcomings that, the present invention is provided.Through document
Retrieval has no open report same as the present invention.
Summary of the invention：
The purpose of the present invention is to provide a kind of pair, concrete component destruction is small, work efficiency is high for detection, detection data is quasi-
True property is high, effects of energy saving and emission reduction is good, subsequent repairs the micro- broken of the highway engineering concrete component thickness for readily facilitating popularization and application
Damage detection device.
The micro-dilapidation testing device of highway engineering concrete component thickness of the invention, by detection bar (1), casing (2), list
Line rubber sleeve (3), miniature webcam (4), angle measuring scale bracket (5), angle measuring scale (6), horizon equipment (7), wheeled are protected in face
Encoder (8), data line (9), data logger (10) are constituted.
Assembly relation is：Detection bar (1) bottom is installed by miniature webcam (4)；Data line (9) and miniature webcam
(4) top connection；Data line (9) is penetrated from detection bar (1) bottom, is pierced by from detection bar (1) top；Casing (2) bottom
Tube bottom penetrates at the top of single side protecting line rubber sleeve (3), is pierced by from single side protecting line rubber sleeve (3) bottom；Detection bar (1) bottom is from set
It penetrates at the top of pipe (2), is pierced by from casing (2) bottom；At the top of angle measuring scale bracket (5) bottom and single side protecting line rubber sleeve (3)
Front position connection, when installation, need to allow angle measuring scale bracket (5) parallel with detection bar (1)；Angle measuring scale bracket (5) top
Position setting angle measuring scale (6) angle annulus connects on the front, and angle measuring scale (6) measures arm bottom front middle position peace
It fills horizon equipment (7)；It is connect on the left of wheel type encoder (8) bottom surface and single side protecting line rubber sleeve (3) top surface, when installation need to allow wheeled volume
The idler wheel of code device (8) is contacted with pole face on the left of detection bar (1)；First data line (9) one end and miniature webcam (4) are even
It connects, the other end is connect with data logger (10)；Second data line (9) one end is connect with angle measuring scale (6), another
End is connect with data logger (10)；Third root data line (9) one end is connect with wheel type encoder (8), the other end and number
It is connected according to recorder (10).
The device of the invention is reequiped or is prepared according to a conventional method using the product and material of market purchase.
The advantage of the invention is that：
1, concrete component is destroyed small.The device of the invention before detection, need to be using electric drill in concrete component to be measured
On drill through minor diameter detection hole, drill through minor diameter detection hole to by inspection component damage it is small, do not influence by inspection component bearing capacity, because
This device of the invention is convenient for a wide range of easy to promote and utilize.
2, work efficiency is high for detection.The device of the invention before detection, need to be bored on concrete component to be measured using electric drill
Minor diameter detection hole is taken, compared with existing core boring sampling equipment, detection hole does not need to obtain core sample, and detects bore dia and be less than
Drill core bore dia, the pore-forming efficiency of detection hole is significantly larger than the working efficiency of core boring sampling, therefore the device of the invention is convenient for big
Range is easy to promote and utilize.
3, detection data accuracy is high.The device of the invention is equipped with angle measuring scale (6), when detecting can be to detection hole
Measured with the angle of vertical line or the angle of horizontal plane, after measuring measured value can in conjunction with angle measurement data to measured value into
Row angle modification, compared with existing equipment, detection data accuracy is higher.
4, effects of energy saving and emission reduction is good.The device of the invention is when carrying out the operation of detection hole pore-forming, using electric drill as pore-forming
Tool, compared with existing core boring sampling equipment, the volume and quality of electric drill are smaller, and operation is simpler, are also not required to provide dedicated
Power supply (Charge)), effects of energy saving and emission reduction is more preferable, therefore the device of the invention is convenient for a wide range of easy to promote and utilize.
5, it is easy to complete the subsequent reparation of rear part for detection.It is detected using the device of the invention, it is necessary after detection
The detection hole left is repaired, compared with the detection hole (detection faces) that existing equipment leaves, detects bore dia small size
It is small, when carrying out subsequent reparation, a large amount of manpower and material resources will not be expended, will not be huge to component damage, therefore it is of the invention
Device is convenient for a wide range of easy to promote and utilize.
Detailed description of the invention：
Fig. 1 is apparatus of the present invention front-view schematic diagram.
Fig. 2 is apparatus of the present invention schematic rear view.
Fig. 3 is apparatus of the present invention schematic top plan view.
Fig. 4 is apparatus of the present invention elevational schematic view.
Fig. 5 is apparatus of the present invention left view schematic diagram.
Fig. 6 is apparatus of the present invention right side view.
Fig. 7 is schematic front view of the apparatus of the present invention when detecting on concrete component.
Specific embodiment：
The present invention is described in further detail with reference to the accompanying drawing.
The micro-dilapidation testing device of highway engineering concrete component thickness of the invention, by detection bar 1, casing 2, single side protecting
Line rubber sleeve 3, miniature webcam 4, angle measuring scale bracket 5, angle measuring scale 6, horizon equipment 7, wheel type encoder 8, data pass
Defeated line 9, data logger 10) it constitutes.
Assembly relation is：1 bottom of detection bar is installed by miniature webcam 4；Connect at the top of data line 9 and miniature webcam 4
It connects；Data line 9 is penetrated from 1 bottom of detection bar, is pierced by the top of detection bar 1；2 lower tube bottom of casing is from single side protecting line rubber
3 top of set penetrates, and is pierced by from 3 bottom of single side protecting line rubber sleeve；1 bottom of detection bar penetrates at the top of casing 2, from 2 bottom of casing
It is pierced by；5 bottom of angle measuring scale bracket is connect with 3 top front position of single side protecting line rubber sleeve, and when installation need to allow angle measurement
Ruler bracket 5 is parallel with detection bar 1；6 angle annulus of position setting angle measuring scale connects on the front on angle measuring scale bracket 5 top
It connects, angle measuring scale 6 measures arm bottom front middle position and installs horizon equipment 7；8 bottom surface of wheel type encoder and single side protecting line rubber
Cover connection on the left of 3 top surfaces, when installation need to allow the idler wheel of wheel type encoder 8 to contact with 1 left side pole face of detection bar；First radical is according to biography
Defeated 9 one end of line is connect with miniature webcam 4, and the other end is connect with data logger 10；Second 9 one end of data line and angle
It spends measuring scale 6 to connect, the other end is connect with data logger 10；9 one end of third root data line and wheel type encoder 8 connect
It connects, the other end is connect with data logger 10.
The device of the invention is reequiped or is prepared according to a conventional method using the product and material of market purchase.
The course of work of the invention is as follows：
1, the preparation before detecting.It needs to drill through detection hole on component to be measured using electric drill before detection, in detection position
Selection is need to select representative position, and drilling depth must be over component and fathom.Open each biography of hardware check
Whether sensor is working properly, as discovery sensor operation irregularity need to be adjusted or repair to abnormality sensor；
2, component thickness measures.Detection hole aperture is inserted into 3 bottom of single side protecting line rubber sleeve, firmly squeezes single side protecting line rubber
Gum cover 3 makes entire single side protecting line rubber sleeve 3 be fixed on detection hole orifice position, and miniature webcam 4 is inserted at the top of casing 2
It is pierced by from bottom, at the uniform velocity promotion detection bar) allow miniature webcam 4 at the uniform velocity to move inside detection hole, while passing through wheeled coding
Device 8 records detection bar 1 into the length inside detection hole, and data are transferred to data logger by third root data line 9
It is stored in 10, the image that miniature webcam 4 observes is transferred in data logger 10 by first data line 9 and is stored up
It deposits, stops the movement of detection bar 1 when miniature webcam 4 reaches thickness measurement locations, detection is read on data logger 10
Bar 1 enter detection hole in length data, this numerical value be component thickness measured value, the measurement arm of rotational angle measuring scale 6, when
Horizon equipment 7 is in a horizontal position the angle measuring scale 6 that stops operating, and angle correction numerical value, angle are read in data logger 10
Measurement data is transferred in data logger 10 by second data line 9 and is stored.
3, data processing.After distinguishing reading element thickness measured value and angle correction in data logger 10, utilize
Trigonometric function carries out angle modification to thickness measured value, and revised numerical value is thickness actual value.
Practical application shows that the requirement that purpose of design and building-site record information is fully achieved in the present invention.
Claims (1)
1. the micro-dilapidation testing device of highway engineering concrete component thickness, it is characterised in that the micro-dilapidation testing device is by detecting
Bar (1), casing (2), single side protecting line rubber sleeve (3), miniature webcam (4), angle measuring scale bracket (5), angle measuring scale
(6), horizon equipment (7), wheel type encoder (8), data line (9), data logger (10) are constituted；
Assembly relation is：Detection bar (1) bottom is installed by miniature webcam (4)；Data line (9) and miniature webcam (4) are pushed up
Portion's connection；Data line (9) is penetrated from detection bar (1) bottom, is pierced by from detection bar (1) top；Casing (2) lower tube bottom from
It penetrates at the top of single side protecting line rubber sleeve (3), is pierced by from single side protecting line rubber sleeve (3) bottom；Detection bar (1) bottom is from casing (2)
Top penetrates, and is pierced by from casing (2) bottom；Angle measuring scale bracket (5) bottom and single side protecting line rubber sleeve (3) top front position
Set connection, when installation need to allow angle measuring scale bracket (5) parallel with detection bar (1)；Angle measuring scale bracket (5) top is on the front
The connection of position setting angle measuring scale (6) angle annulus, it is horizontal that angle measuring scale (6) measures the installation of arm bottom front middle position
Device (7)；It is connect on the left of wheel type encoder (8) bottom surface and single side protecting line rubber sleeve (3) top surface, when installation need to allow wheel type encoder
(8) idler wheel is contacted with pole face on the left of detection bar (1)；First data line (9) one end is connect with miniature webcam (4),
The other end is connect with data logger (10)；Second data line (9) one end is connect with angle measuring scale (6), the other end
It is connect with data logger (10)；Third root data line (9) one end is connect with wheel type encoder (8), the other end and data
Recorder (10) connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810689616.2A CN108917620B (en) | 2018-06-28 | 2018-06-28 | Micro-damage detection device for thickness of highway engineering concrete member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810689616.2A CN108917620B (en) | 2018-06-28 | 2018-06-28 | Micro-damage detection device for thickness of highway engineering concrete member |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108917620A true CN108917620A (en) | 2018-11-30 |
| CN108917620B CN108917620B (en) | 2024-02-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810689616.2A Active CN108917620B (en) | 2018-06-28 | 2018-06-28 | Micro-damage detection device for thickness of highway engineering concrete member |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114923424A (en) * | 2022-05-06 | 2022-08-19 | 中国科学院西北生态环境资源研究院 | Automatic sand dune wind erosion wind accumulation monitoring device and method |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009013649A (en) * | 2007-07-04 | 2009-01-22 | Sekisui House Ltd | Cover concrete thickness checker |
| WO2009020576A1 (en) * | 2007-08-03 | 2009-02-12 | The Mill Steel Co. | Apparatus for determining gauge profile for flat rolled material |
| CN202372107U (en) * | 2011-12-23 | 2012-08-08 | 中建七局第三建筑有限公司 | Measuring device of floorslab casting thickness |
| CN205049127U (en) * | 2015-10-16 | 2016-02-24 | 苏州中材建设有限公司 | Concrete thickness measurement device |
| CN206420414U (en) * | 2017-01-17 | 2017-08-18 | 广东鼎耀工程技术有限公司 | A kind of thickness of cast-in-place concrete measuring instrument |
| CN107941120A (en) * | 2018-01-04 | 2018-04-20 | 陈雪美 | A kind of Simplified measurer of accurate measurement floor thickness of slab |
| CN107964990A (en) * | 2017-12-29 | 2018-04-27 | 上海岩土工程勘察设计研究院有限公司 | Lower embedding type concrete slab no-dig technique measuring thickness device and its thickness measuring method |
| CN207317687U (en) * | 2017-10-18 | 2018-05-04 | 河北建设集团股份有限公司 | A kind of simple measurement tool of concrete component thickness |
| CN207365872U (en) * | 2017-09-28 | 2018-05-15 | 河北省计量监督检测研究院廊坊分院 | A kind of construction pours thickness detection apparatus with cement |
| CN207472164U (en) * | 2017-11-23 | 2018-06-08 | 北京颐和工程监理有限责任公司 | Earthwork loose laying depth detection ruler |
-
2018
- 2018-06-28 CN CN201810689616.2A patent/CN108917620B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009013649A (en) * | 2007-07-04 | 2009-01-22 | Sekisui House Ltd | Cover concrete thickness checker |
| WO2009020576A1 (en) * | 2007-08-03 | 2009-02-12 | The Mill Steel Co. | Apparatus for determining gauge profile for flat rolled material |
| CN202372107U (en) * | 2011-12-23 | 2012-08-08 | 中建七局第三建筑有限公司 | Measuring device of floorslab casting thickness |
| CN205049127U (en) * | 2015-10-16 | 2016-02-24 | 苏州中材建设有限公司 | Concrete thickness measurement device |
| CN206420414U (en) * | 2017-01-17 | 2017-08-18 | 广东鼎耀工程技术有限公司 | A kind of thickness of cast-in-place concrete measuring instrument |
| CN207365872U (en) * | 2017-09-28 | 2018-05-15 | 河北省计量监督检测研究院廊坊分院 | A kind of construction pours thickness detection apparatus with cement |
| CN207317687U (en) * | 2017-10-18 | 2018-05-04 | 河北建设集团股份有限公司 | A kind of simple measurement tool of concrete component thickness |
| CN207472164U (en) * | 2017-11-23 | 2018-06-08 | 北京颐和工程监理有限责任公司 | Earthwork loose laying depth detection ruler |
| CN107964990A (en) * | 2017-12-29 | 2018-04-27 | 上海岩土工程勘察设计研究院有限公司 | Lower embedding type concrete slab no-dig technique measuring thickness device and its thickness measuring method |
| CN107941120A (en) * | 2018-01-04 | 2018-04-20 | 陈雪美 | A kind of Simplified measurer of accurate measurement floor thickness of slab |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114923424A (en) * | 2022-05-06 | 2022-08-19 | 中国科学院西北生态环境资源研究院 | Automatic sand dune wind erosion wind accumulation monitoring device and method |
| CN114923424B (en) * | 2022-05-06 | 2023-05-16 | 中国科学院西北生态环境资源研究院 | Automatic monitoring device and method for wind erosion and wind accumulation of sand dunes |
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| Publication number | Publication date |
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| CN108917620B (en) | 2024-02-27 |
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