CN102967653B - Anchor rod nondestructive testing method and device - Google Patents
Anchor rod nondestructive testing method and device Download PDFInfo
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- CN102967653B CN102967653B CN201210367732.5A CN201210367732A CN102967653B CN 102967653 B CN102967653 B CN 102967653B CN 201210367732 A CN201210367732 A CN 201210367732A CN 102967653 B CN102967653 B CN 102967653B
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Abstract
The invention discloses a kind of anchor rod nondestructive testing method and device, the method adopts a kind of anchor pole pick-up unit of plastic bullet exciting, this device comprises anchor pole (4), wherein, establish one to excite face (5) at anchor pole (4) exposed end portion, excite aligning within the scope of the 0 ~ 20cm of face (5) to excite face (5) to be provided with a plastic bullet can launching plastic bullet in distance and launch vibrator (3); Accept sensor (2) exciting face (5) is provided with, accept sensor (2) and be connected with anchor pole detector (1) by line (6).The present invention adopts plastic bullet exciting, clash at bullet and excite during face and can produce elastic wave, this elastic wave can obtain anchor pole detect required for hammer vibration energy and frequency, the mechanical vibration wave that anchor pole is additional can be reduced again greatly, for anchor pole detects the exciting mode providing a kind of the best.
Description
Technical field
The present invention relates to a kind of anchor rod nondestructive testing method and device, belong to civil engineering work technical field of nondestructive testing.
Background technology
In present Construction of Civil Engineering, cavern, side slope usually use a large amount of anchor poles to carry out anchoring process, and the Non-Destructive Testing of anchor pole is the important method evaluating cavern, side slope anchor pole quality, therefore anchor pole detection without damage equipment and technology show its importance especially fast and accurately.Anchor pole detection without damage equipment comprises signal and launches vibrator, sensor and signal collection and analysis instrument etc.
Chinese patent literature application number is 201110057649.3, name is called that the data of " anchor rod nondestructive testing method based on Multi-source Information Fusion " discloses a kind of anchor rod nondestructive testing method based on Multi-source Information Fusion, the hand hammer that its test platform comprises more than four kinds materials, the computing machine being arranged on the sonic sensor on tested anchor pole exposed junction anchor head, the data collector be connected with sonic sensor and being connected with data collector; When Non-Destructive Testing is carried out to anchor pole, by more than four kinds pumping signals, the acoustic emissions signal of anchor pole bottom is sent in data collector by sonic sensor, carry out calculating with identifying based on the data processing of Multi-source Information Fusion to the data that described data collector gathers by computing machine again, Non-Destructive Testing is carried out to described anchor pole.The excitation method of the method adopts artificial hammer to knock etc. to belong to rigidity exciting mode, and the mechanical vibration wave of the mechanical vibration institute association of the large amplitude that rigidity exciting inevitably brings anchor pole end subsidiary, mask the reflection wave signal that relatively weak anchor pole is useful, cause accuracy of detection not ideal enough, error is larger.Therefore, this anchor pole detection method or undesirable.
Summary of the invention
Technical matters to be solved by this invention is to provide the anchor rod nondestructive testing method and device that the plasticity that obtains best elastic wave in a kind of anchor pole detection without damage excites, to overcome the deficiency of the mechanical vibration interference wave of the large amplitude that prior art produces when exciting.
For solving the problems of the technologies described above, a kind of anchor rod nondestructive testing method of the present invention, comprise the method that devices such as adopting signal transmitting vibrator, sensor and signal collection and analysis instrument carries out anchor pole detection, wherein, the method adopts a kind of anchor pole pick-up unit of plastic bullet exciting, this device is provided with a plasticity bullet can launching a kind of plasticity bullet and launches vibrator, when carrying out anchor pole and detecting, launch excite face 0 ~ 20cm within the scope of the aligning of vibrator on the termination of distance anchor pole by this plasticity bullet and excite surface launching plasticity bullet to carry out exciting.
For realizing said method, present invention also offers a kind of anchor pole pick-up unit of plastic bullet exciting, comprise anchor pole, wherein, establish one to excite face at anchor pole exposed end portion, excite aligning within the scope of the 0 ~ 20cm of face to excite face to be provided with a plastic bullet can launching plastic bullet in distance and launch vibrator; Accept sensor exciting face is provided with, accept sensor and be connected with anchor pole detector by line.
Further, when using described plastic bullet to launch vibrator transmitting plastic bullet, plastic bullet and the described interfacial angle that excites are 50 ~ 90
0, plastic bullet bullet detects with initial velocity 30 ~ 150m/s exciting anchor pole.
Further, the index of described plastic bullet is bullet plasticity, bullet density 1.0 ~ 1.6g/cm
3, caliber 5 ~ 9mm.
The present invention adopts plastic bullet exciting, clash at bullet and excite during face and can produce elastic wave, this elastic wave can obtain anchor pole detect required for hammer vibration energy and frequency, the mechanical vibration wave that anchor pole is additional can be reduced again greatly, for anchor pole detects the exciting mode providing a kind of the best.In addition, plastic bullet home market all can be purchased, and equipment is simple, efficient and convenient, can excite and obtain elastic wave required in the detection of good anchor pole, improve accuracy of detection.The present invention also can be applicable to, in the method for many similar employing elastic wave test object Performance and qualities, be worthy to be popularized.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Being labeled as in accompanying drawing: 1-anchor pole detector, 2-accepts sensor, and 3-plastic bullet launches vibrator, and 4-anchor pole, 5-excites face, 6-line.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further detailed explanation.
See Fig. 1, excite at anchor pole 4 arrangement in the side part in face 5 to accept sensor 2 and line 6 in figure, be connected with anchor pole detector 1 by line 6.Plastic bullet launch vibrator 3 be placed in the other side that anchor pole 4 excites face 5, and with excite face 5 angle of cut to be 50 ~ 90
0, muzzle with excite face 5 spacing 0 ~ 20cm.
During the invention process, anchor pole detector 1 is started shooting and is made instrument be in normal receive status setup test.During exciting, plastic bullet is launched vibrator 3 and is launched plastic bullet exciting and excite face 5, the elastic wave that anchor pole detector 1 is required in being detected by external trigger receptive pattern automatic acquisition anchor pole, and test completes.After the conventional Non-destructive Testing Data disposal route of elastic wave data obtained in test being processed, the quality measurements of anchor pole 4 can be obtained.
The present invention can make a start and to receive and the mode such as end side receipts is carried out in make a start receipts, side, selecting side according to detecting code.
A more than just embody rule example of the present invention, the technical scheme that the present invention also has other embodiment, all employings to be equal to replacement or equivalent transformation to be formed, all drops within this protection domain of the presently claimed invention.
Claims (3)
1. an anchor rod nondestructive testing method, comprise and adopt signal to launch vibrator, the devices such as sensor and signal collection and analysis instrument carry out the method for anchor pole detection, it is characterized in that: the method adopts a kind of anchor pole pick-up unit of plastic bullet exciting, this device is provided with a plasticity bullet can launching a kind of plasticity bullet and launches vibrator (3), when carrying out anchor pole and detecting, launching exciting face (5) 0 ~ 20cm within the scope of the aligning of vibrator (3) on the termination of distance anchor pole (4) by described plasticity bullet excites face (5) transmitting plasticity bullet to carry out exciting, use described plastic bullet launch vibrator (3) launch plastic bullet time, plastic bullet and describedly excite face (5) angle of cut to be 50 ~ 90
0, plastic bullet bullet detects with initial velocity 30 ~ 150m/s exciting anchor pole (4), selecting side make a start receipts or side make a start receive or end send out side receive a mode carry out.
2. the anchor pole pick-up unit of a plastic bullet exciting, comprise anchor pole (4), it is characterized in that: establish one to excite face (5) at anchor pole (4) exposed end portion, excite aligning within the scope of the 0 ~ 20cm of face (5) to excite face (5) to be provided with a plastic bullet can launching plastic bullet in distance and launch vibrator (3); Accept sensor (2) exciting face (5) is provided with, accept sensor (2) and be connected with anchor pole detector (1) by line (6); Use described plastic bullet launch vibrator (3) launch plastic bullet time, plastic bullet and describedly excite face (5) angle of cut to be 50 ~ 90
0, plastic bullet bullet detects with initial velocity 30 ~ 150m/s exciting anchor pole (4).
3. the anchor pole pick-up unit of plastic bullet exciting according to claim 2, is characterized in that: the index of described plastic bullet is bullet plasticity, bullet density 1.0 ~ 1.6g/cm
3, caliber 5 ~ 9mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210367732.5A CN102967653B (en) | 2012-09-28 | 2012-09-28 | Anchor rod nondestructive testing method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210367732.5A CN102967653B (en) | 2012-09-28 | 2012-09-28 | Anchor rod nondestructive testing method and device |
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| Publication Number | Publication Date |
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| CN102967653A CN102967653A (en) | 2013-03-13 |
| CN102967653B true CN102967653B (en) | 2015-12-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106525969A (en) * | 2016-10-27 | 2017-03-22 | 中国电建集团贵阳勘测设计研究院有限公司 | Device and method for carrying out nondestructive testing on anchor rod by adopting cosine linear scanning signal |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106290567A (en) * | 2016-08-12 | 2017-01-04 | 中国水利水电第七工程局有限公司 | A kind of lossless detection method of the long anchor pole of exposed junction in country rock or side slope supporting construction |
| CN107227968B (en) * | 2017-07-27 | 2023-06-16 | 贵州大学 | Self-checking anchor rod and using method thereof |
| CN112213391B (en) * | 2020-10-15 | 2022-05-27 | 山东省交通科学研究院 | Nondestructive excitation inspection device for anchor rod |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006003324A (en) * | 2004-06-21 | 2006-01-05 | Non-Destructive Inspection Co Ltd | Method of measuring distribution of axial force of lock bolt and method of measuring distribution of axial force of lock bolt and the lock bolt |
| CN100416269C (en) * | 2005-12-09 | 2008-09-03 | 重庆大学 | Non destructive detection mothod used for anchor rod anchored system |
| CN101457534B (en) * | 2008-12-24 | 2010-11-03 | 北京中交华安科技有限公司 | Impulse elastic wave energized residual signal restraining device and restraining method |
| CN201532381U (en) * | 2009-07-16 | 2010-07-21 | 招商局重庆交通科研设计院有限公司 | Anchor cable and anchor rod anchoring quality detecting device based on hole-bottom embedded reflecting device |
| CN102053117A (en) * | 2009-10-28 | 2011-05-11 | 上海建科建设发展有限公司 | Method for testing grouting compactness degree of prestressed pore of bridge based on elastic-wave energy dissipation rate |
| CN102183226B (en) * | 2011-03-11 | 2015-10-28 | 石家庄铁道大学 | Based on the anchor rod nondestructive testing method of Multi-source Information Fusion |
| CN102175195A (en) * | 2011-03-16 | 2011-09-07 | 江苏中矿立兴能源科技有限公司 | Non-full-length bonding anchor length nondestructive testing method for coal mines |
| CN202837244U (en) * | 2012-09-28 | 2013-03-27 | 中国水电顾问集团贵阳勘测设计研究院 | Anchor rod detection device for shock excitation of plastic bullet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106525969A (en) * | 2016-10-27 | 2017-03-22 | 中国电建集团贵阳勘测设计研究院有限公司 | Device and method for carrying out nondestructive testing on anchor rod by adopting cosine linear scanning signal |
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