CN2658752Y - Device for fixing sensor on anchor head and obtaining three-component detection signal - Google Patents
Device for fixing sensor on anchor head and obtaining three-component detection signal Download PDFInfo
- Publication number
- CN2658752Y CN2658752Y CN 200320116138 CN200320116138U CN2658752Y CN 2658752 Y CN2658752 Y CN 2658752Y CN 200320116138 CN200320116138 CN 200320116138 CN 200320116138 U CN200320116138 U CN 200320116138U CN 2658752 Y CN2658752 Y CN 2658752Y
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- CN
- China
- Prior art keywords
- anchor pole
- sensor
- clamp device
- anchor
- securing device
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- Expired - Lifetime
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- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The utility model relates to a fixing device for a tri-component sensor in a piled-anchor detection, consists of a securing device, sensors and a hand-operated screw, and is characterized in that the sensors are fixed on the securing device; the securing device is covered on a piled anchor; the hand-operated screw is reinforced between the securing device and the piled anchor. Three sensors are fixed on the securing device. The utility model secures the sensors on the end portions of the piled anchor through the securing device; overcomes the defect of bad repeated detection waveforms resulted in the old single-component sensor fixed on the piled anchor in a hand-supporting way or other fixing ways; also obtains a tri-component detection signals for an easy analysis on the signals and enables a more effective and more reliable judgment on the anchoring quality of the piled anchor.
Description
Technical field
The utility model belongs to a kind of test fixture of anchor pole, is that a kind of anchor pole detects the three-component sensor fastening device specifically.
Background technology
Anchor pole is the member of a highly stressed, and the anchor system stability prediction is in case error often brings immeasurable loss to engineering, thereby whether it works by the predetermined mode of design to need inspection.Current, anchorage technology is widespread use in large-scale construction projects such as water conservancy and hydropower, mine excavation, road and rail tunnel, subway, deep basal pit and high slope maintenance, and is simultaneously on-the-spot because of the construction existing problems and do not have the advanced complete accident that detection means caused and also get more and more with economic loss.But owing to many-sided reason, the detection of domestic and international anchor rod anchored quality and stress still rests on and utilizes hydraulic jack to carry out the destructive drawing experimental phase.This detection means is not only taken a lot of work but also time-consuming, the more important thing is that this detection means produces stronger disturbance to the rock mass through bolt anchorage, reduced the reinforcement effect of anchor pole to country rock, because of its detection method be breakage and can only inspect by random samples, far can not adapt to the requirement of on-the-spot extensive anchor bolt construction quality testing.Caused worldwide geophysics worker's concern at the research of anchor rod anchored quality Dynamic Non-Destruction Measurement.In the eighties, Sweden once released the commercialization detecting instrument that supersonic reflection method detects the grouting rock bolt anchoring status, can not make quantitative evaluation again but ultrasonic attenuation is big and shooting conditions is harsh, so on-the-spot inapplicable;
Geophone (receiving transducer) is installed by audio frequency stress wave Non-Destructive Testing field observation system in the anchor pole outer end, apply the power of impulsing in the end, just can produce stress wave at anchor rod system, this stress wave will carry the information of anchor rod system and return, received by anchor pole outer end geophone, noted by the form of vibrational waveform by detecting instrument, the signal that is recorded is the basic document of assay anchor pole quality, reaches the purpose of estimating the anchor pole quality after analysis is handled.Because at present audio frequency stress wave Non-Destructive Testing field observation system and pick-up unit (particularly explosive source and receiving transducer) can not satisfy the detection requirement, as observe that repeatability is bad, explosive source energy instability etc.
Summary of the invention
The utility model provides a kind of and solves the bad problem of detection signal repeatability, and the anchor pole of three component signals of one-time detection detection three-component sensor fastening device, has improved the confidence level of detection signal, to overcome above-mentioned deficiency.
To achieve these goals, the utility model is made of clamp device, sensor and hand screw, is characterized in: sensor is fixed on the clamp device, and clamp device is enclosed within on the anchor pole head, reinforces by hand screw between clamp device and the anchor pole head;
A screw thread hole clipping is arranged on the above-mentioned clamp device, and after hand screw revolved the screw thread hole clipping, its hand screw head can withstand on the anchor pole;
At least two of the sensor of said fixing on clamp device;
The sensor of said fixing on clamp device is three.
The utility model adopts clamp device, sensor is fixed tightly in the anchor pole end, overcome hand steered or other modes of old-fashioned simple component sensor and be fixed on the shortcoming that the anchor pole head causes the detection waveform poor repeatability, and obtain the three-component detection signal simultaneously, be easy to signal analysis, make the differentiation of anchor rod anchored quality more effective, more reliable.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 1 is the sectional view of the utility model clamp device.
Embodiment
Further specify the utility model below in conjunction with drawings and Examples.
The utility model adopts three-component sensor 6-1～6-3 is fixed in the clamp device 1, and clamp device 1 is enclosed within on the anchor pole head 2, and with the hand screw 3 that is installed on the clamp device 1 itself and anchor pole is tightened up, and is solid firm.Three signal connector lugs 4 that clamp device 1 is drawn are connected with external instrument, anchor pole head 2 excitings (adopting hammering or super magnetic focus), are accepted the signal that is spread out of by three signal connector lugs 4 by external instrument.It is the short remained shock wave detector of moving-coil type of 60HZ-100HZ that sensor 6-1 of the present utility model adopts dominant frequency; It is the short remained shock transducer of piezoelectric type of 10-20 that sensor 6-2 of the present utility model adopts dominant frequency; Sensor 6-3 of the present utility model adopts acceleration transducer.
Claims (5)
1, a kind of anchor pole detects the three-component sensor fastening device, constitute by clamp device (1), sensor (6) and hand screw (3), it is characterized in that: sensor (6) is fixed on the clamp device (1), clamp device (1) is enclosed within on the anchor pole head (2), reinforces by hand screw (3) between clamp device (1) and the anchor pole head (2).
2, anchor pole as claimed in claim 1 detects the three-component sensor fastening device, it is characterized in that: a screw thread hole clipping (5) is arranged on the clamp device (1), after hand screw (3) revolved screw thread hole clipping (5), its hand screw (3) head can withstand on the anchor pole head (2).
3, anchor pole as claimed in claim 1 detects the three-component sensor fastening device, it is characterized in that: be fixed on (6) at least two of sensors on the clamp device (1).
4, anchor pole as claimed in claim 3 detects the three-component sensor fastening device, and it is characterized in that: the sensor (6) that is fixed on the clamp device (1) is three.
5, anchor pole as claimed in claim 4 detects the three-component sensor fastening device, it is characterized in that: it is the short remained shock wave detector of moving-coil type of 60HZ-100HZ that sensor (6-1) adopts dominant frequency; It is the short remained shock transducer of piezoelectric type of 10-20 that sensor (6-2) adopts dominant frequency; Sensor (6-3) adopts acceleration transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320116138 CN2658752Y (en) | 2003-11-28 | 2003-11-28 | Device for fixing sensor on anchor head and obtaining three-component detection signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320116138 CN2658752Y (en) | 2003-11-28 | 2003-11-28 | Device for fixing sensor on anchor head and obtaining three-component detection signal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2658752Y true CN2658752Y (en) | 2004-11-24 |
Family
ID=34346186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320116138 Expired - Lifetime CN2658752Y (en) | 2003-11-28 | 2003-11-28 | Device for fixing sensor on anchor head and obtaining three-component detection signal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2658752Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104567769A (en) * | 2013-10-18 | 2015-04-29 | 中铁九局集团工程检测试验有限公司 | Displacement measuring bracket applied to pullout test of anchor rod |
| CN105672310A (en) * | 2016-01-28 | 2016-06-15 | 深圳冶建院建筑技术有限公司 | Anchor head displacement measuring device and method |
| CN111998881A (en) * | 2020-08-25 | 2020-11-27 | 华亭煤业集团有限责任公司 | Fixing device for cylindrical sensor |
-
2003
- 2003-11-28 CN CN 200320116138 patent/CN2658752Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104567769A (en) * | 2013-10-18 | 2015-04-29 | 中铁九局集团工程检测试验有限公司 | Displacement measuring bracket applied to pullout test of anchor rod |
| CN105672310A (en) * | 2016-01-28 | 2016-06-15 | 深圳冶建院建筑技术有限公司 | Anchor head displacement measuring device and method |
| CN105672310B (en) * | 2016-01-28 | 2018-04-20 | 中冶建筑研究总院（深圳）有限公司 | Anchor pole displacement measuring means and method |
| CN111998881A (en) * | 2020-08-25 | 2020-11-27 | 华亭煤业集团有限责任公司 | Fixing device for cylindrical sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20131128 Granted publication date: 20041124 |