CN101782554A - Full-split single pore sound wave test device and debugging method thereof - Google Patents
Full-split single pore sound wave test device and debugging method thereof Download PDFInfo
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- CN101782554A CN101782554A CN 201010115218 CN201010115218A CN101782554A CN 101782554 A CN101782554 A CN 101782554A CN 201010115218 CN201010115218 CN 201010115218 CN 201010115218 A CN201010115218 A CN 201010115218A CN 101782554 A CN101782554 A CN 101782554A
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Abstract
The invention relates to a full-split single pore sound wave test device and a debugging method thereof. The technical problem to be solved is to provide a full-split single pore sound wave test device and a debugging method thereof. Good coupling between a detection probe and the pore wall is guaranteed, and the interference of wave velocities of leather bags on real wave velocity of rock mass is overcome when the quality of the rock mass is poor. The technical scheme to solve the problem is that: the full-split single pore sound wave test device is provided with the detection probe on which a group of transmitting transducers and receiving transducers at intervals are arranged; an independent leather bag is coated outside each transducer; and each leather bag is provided with an independent thin water injection tube. The debugging method comprises the following steps: a, filling water in the leather bags, and putting the probe in a detection hole; b, filling water in the leather bags again and sampling; c, if the wave form is fuzzy, rotating or moving the probe and repeating the step b until the wave form is clear, and starting to detect. The full-split single pore sound wave test device and the debugging method thereof are mainly applied to nondestructive testing of loose areas for side slope and tunnel excavation in hydropower engineering, transportation, mine and other projects.
Description
Technical field
The present invention relates to a kind of single pore sound wave trial assembly puts and adjustment method, the trial assembly of particularly a kind of full separate type single pore sound wave is put and adjustment method, mainly be applicable to side slope, the Non-Destructive Testing of tunnel excavation relax zone of engineerings such as Hydraulic and Hydro-Power Engineering, traffic, mine, be specially adapted to the comparatively broken zone of rock mass, or go up inclined hole, common acoustic detector such as hole can't reach the single hole sonic detection under good water coupling (or other couplants couplings) situation straight up.
Background technology
Sonic detection is to utilize manual method that measured medium is applied dynamic load, as the excitaton source that excites elastic wave, make it in medium, to propagate, receive the information of acoustic wave (comprising: velocity of wave, amplitude, frequency, sound spectrum, waveform etc.) transmit by the amount of analysis measurement equipment then, come stable and lax, the damage range and the degree of evaluation engineering rock mass.Sonic detection is widely used in all kinds of engineering constructions, such as detecting the stable of underground cavern, roadway surrounding rock; Estimate the quality and the classification of rock mass; Mineral building, ore pillar stability monitoring; The validity check that foundation and slope reinforcement are handled; And the detection of karst and quartzy cave, soft stratum or interlayer, fault belt, waste mantle etc.
The program of rock mass single hole sonic detection generally is that at first at rock side slope to be detected or cavern's surface drilling, aperture, hole depth and hole are comprehensively determined to the specification according to the purpose, scope and the employed acoustic detection probe that detect; After boring is finished, foreign material such as the rock ballast in the hole, rock dust are removed (or cleaning) clean, two ripple detection probe that quiet down of single hole are put into the hole at the bottom of, water filling in the hole (or other couplant) is coupled acoustic detection probe and rock hole wall fully; Then according to code requirement, from the bottom of the hole to the aperture, every interval 20cm (can encrypt as requested) tests once; Repeat above-mentioned test process, until the aperture, test is finished.
In the above test procedure, the most key part is how to guarantee good coupling between sonic probe and instrument connection hole wall, if it is bad to be coupled, can't obtain the test sound wave waveform, or the waveform quality that obtains is very poor, and the interference of noise signal makes the actual signal distortion.In the actual engineering rock mass sonic test process, generally adopt water to be coupled as couplant (also can adopt other fluid couplant), just might there be following several problem in this:
(1) if test position rock mass is comparatively broken, for hole or oblique hole down straight down, the very fast seepage of the water in the filling orifice is fallen, and can't guarantee good water coupling;
(2) some mines composition is comparatively responsive to moisture (or other couplant) in rock mass, meets water softening or expansion, and its physico-mechanical properties is changed, and makes water coupling test result lose meaning;
(3) water in injection sonic detection hole is penetrated into hole rock cranny on every side, and the filling crack also might impact sonic detection result's authenticity;
(4) to hole or hole obliquely straight up, can't water filling be coupled, common acoustic detector can't detect.
At above-mentioned several problems, several " dry hole acoustic wave transducer " (being acoustic detection probe) or dry hole acoustic detectors have been developed in engineering rock mass sonic detection field at present, their main design philosophy is to utilize rubber pocket that whole acoustic detection probe is encased fully, water filling in the capsule, guarantee the coupling fully of water and rubber bag tank, utilize hydraulic pressure or air pressure that rubber pocket and hole wall are adjacent to then.In the water zone little to the rock mass property effect, rubber pocket also can be provided with tubule flowing water outward, further improves the coupling between rubber pocket and detection hole wall.The problem of these several dry hole transducers is: at the relatively poor position of rock mass, and the velocity of wave that is likely rubber pocket that acoustic detection probe measures.
Summary of the invention
The technical problem to be solved in the present invention is: at the problem of above-mentioned existence provide a kind of simple in structure, easy to use, detect the reliably full separate type single pore sound wave trial assembly of data stabilization and put and adjustment method, relatively poor in the rock mass condition, couplant is not suitable for detect rock mass directly contact, obliquely the hole, straight up in the sonic detection process of condition such as hole, guarantee on the one hand between acoustic detection probe and the leather bag and good coupling between leather bag and hole wall, overcome on the other hand rock-mass quality when relatively poor the leather bag velocity of wave to the interference of true rock mass velocity.
The technical solution adopted in the present invention is: full separate type single pore sound wave trial assembly is put, has detection probe, the transmitting transducer and the receiving transducer of one group of space are installed on it, it is characterized in that: each transmitting transducer and receiving transducer all wrap up a separate leather bag outward, and each leather bag is all joined separately independently water filling tubule.
Described sonic test device adopts a two receipts formula, and transmitting transducer is installed in the detection probe bottom, and one of them receiving transducer is contained in the detection probe top, and another receiving transducer is contained in the detection probe middle part.
Distance between described two receiving transducers is 20cm.
An overflow pipe that is used for water filling in detecting the hole is respectively established in described detection probe top and bottom, its effect is the situation that can't be adjacent to coupling at leather bag and hole wall really, (it is downward-sloping or straight down the time to detect the hole, uses the water pipe of detection probe bottom by the slowly water filling in the hole of this overflow pipe; Detect that the hole is inclined upwardly or straight up the time, use the water pipe at detection probe top), make the slit between current filling leather bag and detection hole hole wall, improve the coupling (if the rock water-swellable of test zone or softening then should not adopt the method) between leather bag and detection hole hole wall.
The adjustment method that full separate type single pore sound wave trial assembly is put is characterized in that step is as follows:
A, water-filling in three leather bags are respectively put into detection probe then and are detected the hole predetermined position;
B, successively to the leather bag water-filling that is positioned at detection probe middle part, top and bottom, leather bag is expanded is adjacent to coupling with detecting the hole hole wall, promptly begin sampling in the water filling process, if the waveform of gathering is fuzzy, and the leather bag internal pressure then goes to step c near its utmost carrying ability; If the waveform of gathering is clear, then go to step f;
C, part are discharged three water in the leather bag, make leather bag and detect the hole hole wall and throw off, rotate vertically or radially mobile detection probe after, execution in step b once more;
D, after step c debugs repeatedly, if the waveform of gathering is still fuzzy, the test zone rock is met water and can not occurred expanding or ruckbildung simultaneously, then goes to step e; If the waveform of gathering is clear, then go to step f;
E, by overflow pipe slowly water filling in detecting the hole of detection probe top and bottom, make current filling leather bag and the slit of detecting between the hole wall of hole, improve the coupling between leather bag and detection hole hole wall;
F, stop water-filling, begin to detect.
The invention has the beneficial effects as follows: the present invention wraps up each transmitting transducer and receiving transducer with separate one by one leather bag, water filling makes it to expand and reaches good coupling with hole wall in leather bag, realized the dry hole detection, both solved the rock crushing position because of leaking or obliquely, the difficulty of conventional water coupling can't be carried out in the hole straight up, overcome of the influence of leather bag acoustic velocity again to true rock mass acoustic velocity, enlarged the sensing range of conventional acoustic detection probe and to the adaptability of testing conditions, thereby make the sonic detection data more reliable and stable, have comparatively wide application prospect.
Description of drawings
Fig. 1 is the structural drawing of detection probe among the embodiment 1.
Fig. 2 is the structural drawing behind embodiment 1 water-filling.
Fig. 3 is the synoptic diagram (hole straight up) of embodiment 1 moving process.
Fig. 4 is the structural drawing of detection probe among the embodiment 2.
Structural drawing after Fig. 5 embodiment 2 inflations.
Fig. 6 is the synoptic diagram (hole straight up) of embodiment 2 moving process.
Embodiment
Embodiment 1: as shown in Figure 1 to Figure 3, present embodiment sonic test device adopts a two receipts formula, comprise detection probe, a transmitting transducer 1 is installed in its bottom, a receiving transducer 2 is respectively installed at top and middle part, and the distance between two receiving transducers 2 is 20cm, simultaneously at each transmitting transducer 1 and the separate leather bag 3 of receiving transducer 2 outer wrapping, each transmitting transducer 1 and receiving transducer 2 are spaced from each other, solved when the rock mass condition is relatively poor, leather bag 3 acoustic velocity are to the interference of true rock mass acoustic velocity.Each leather bag 3 is all joined separately independently water filling tubule, the double simultaneously gas outlet of doing of this water filling tubule.Before the use, with hand extruding leather bag 3, gas in the capsule is discharged from the water filling tubule, then before detection probe is put into the detection hole, in leather bag 3, charge into a certain amount of water (or other couplant) by the water filling tubule, the water yield that charges into will be controlled according to the size that detects the aperture, hole, fully is coupled can guarantee detection probe and leather bag 3, can easily put into the detection hole again and be advisable.
Should at first utilize hydraulic pressure that leather bag 3 and detection hole hole wall are fitted tightly in the testing process, when leather bag 3 can't be adjacent to coupling really with detection hole hole wall, can utilize detection probe top and bottom that an overflow pipe 4 respectively is set, the flexible pipe that this overflow pipe employing diameter is 5-8mm gets final product.(it is downward-sloping or straight down the time to detect the hole, uses the overflow pipe of detection probe bottom by overflow pipe 4 slowly water filling in detecting the hole; Detect that the hole is inclined upwardly or straight up the time, use the overflow pipe at detection probe top), make the slit between current filling leather bag 3 and detection hole hole wall, improve the coupling (if the rock water-swellable of test zone or softening then should not adopt the method) between leather bag 3 and detection hole hole wall.In actual the use, the bottom of detection probe is connected by the water source outside water pipe, cable etc. and the hole, sonic apparatus etc.
The implementation step of present embodiment is as follows:
A, by detection requirement cloth hole, boring and clear hole, make it to possess testing conditions;
B, make leather bag 3, on leather bag 3, arrange water filling tubule, the bottom of detection probe, top layout overflow pipe 4 simultaneously by the diameter that detects aperture, hole and detection probe;
C, in three leather bags 3, respectively charge into an amount of water (or other couplants), filled water amount is controlled according to the size that detects the aperture, hole, can guarantee that detection probe and leather bag 3 fully are coupled, can easily put into the detection hole again is advisable, then detection probe is put into and detected the bottom, hole, so both can reduce the water injection time of leather bag 3 in the testing process, and can reduce water-filling again simultaneously leather bag 3 is filled quick-fried chance, improve the efficient that detects;
D, to leather bag 3 water-fillings (or other couplants) that are positioned at detection probe middle part, then to leather bag 3 water-fillings (or other couplants) that are positioned at the detection probe top, at last to leather bag 3 water-fillings (or other couplants) that are positioned at the detection probe bottom, utilize hydraulic pressure that leather bag 3 and detection hole hole wall are adjacent to, reach good coupling, promptly begin sampling in the water filling process, in the time can collecting acoustic waveform, stop water filling; As the utmost carrying ability (again fill then possible explosion) of water-filling hydraulic pressure near leather bag 3, two receiving cables still have one or two can not collect clear waveform, then should partly discharge three water in the leather bag 3, make leather bag 3 and detect hole hole wall disengagement, the detection probe that detects in the hole is rotated suitable angle, or radially move less distance, again water filling then, receive waveform, detect test, till receiving complete waveform clearly;
E, meet that expanding can not appear in water or during phenomenon such as softening when the rock of test zone, if through debugging repeatedly, really can not obtain desirable waveform, (it is downward-sloping or straight down the time to detect the hole, uses the overflow pipe of detection probe bottom then can to utilize overflow pipe 4 slowly water filling in the hole of detection probe top and bottom; Detect that the hole is inclined upwardly or straight up the time, use the overflow pipe at detection probe top), make current filling leather bag 3 and the slit of detecting between the hole wall of hole, improve the coupling between leather bag 3 and detection hole hole wall.Certainly, if the rock water-swellable of test zone or softening then should not adopt the method, still need the patient careful position and the direction of debugging sonic apparatus and adjusting detection probe;
After f, first measuring point were finished, part was discharged three water in the leather bag 3, made leather bag 3 and detected hole hole wall disengagement, moves acoustic detection probe 20cm (or detecting the distance that requires regulation) to the aperture, and then leather bag 3 is carried out water-filling debugging, detection;
G, the rest may be inferred, detects up to finishing full hole.
Embodiment 2: as Fig. 4-shown in Figure 6, the present embodiment structure is substantially the same manner as Example 1, and its difference is, respectively establishes an independently air bag 5 in each leather bag 3 outside, and being centered close on same the straight line of each air bag 5.Air bag 5 is in contraction state before detection probe is put into the detection hole, after probe to be detected is put into the precalculated position of detecting the hole, to air bag 5 inflations, make air bag 5 bulging by air bag 5 gas-filled tube separately, the leather bag 3 that promotes water-filling is adjacent to coupling with detecting the hole hole wall, can carry out sonic detection.
The implementation step of present embodiment is as follows:
A1, b1, c1 step are with the step a among the embodiment 1, b, c;
D1, successively to air bag 5 inflation that is positioned at detection probe top, middle part and bottom, promptly begin sampling in the gas replenishment process, in the time can collecting acoustic waveform, stop inflation; As the utmost carrying ability (again fill then possible explosion) of inner gas pressure near air bag 5, two receiving cables still have one or two can not collect clear waveform, then answer the gas in three air bags 5 of emptying, the detection probe that detects in the hole is rotated suitable angle, or radially move less distance, inflation again receives waveform then, detect test, till receiving complete waveform clearly;
E1, step are with embodiment 1 step e;
After f1, first measuring point are finished, discharge the gas in three air bags 5, move acoustic detection probe 20cm (or detecting other distances that require regulation), and then air bag 5 is inflated debugging, detected to the aperture;
G1, the rest may be inferred, detects up to finishing full hole.
Claims (5)
1. full separate type single pore sound wave trial assembly is put, has detection probe, the transmitting transducer (1) and the receiving transducer (2) of one group of space are installed on it, it is characterized in that: each transmitting transducer (1) and receiving transducer (2) are outer all to wrap up a separate leather bag (3), and each leather bag (3) is all joined separately independently water filling tubule.
2. full separate type single pore sound wave according to claim 1 trial assembly is put, it is characterized in that: described sonic test device adopts a two receipts formula, transmitting transducer (1) is installed in the detection probe bottom, one of them receiving transducer (2) is contained in the detection probe top, and another receiving transducer (2) is contained in the detection probe middle part.
3. full separate type single pore sound wave according to claim 2 trial assembly is put, and it is characterized in that: the distance between described two receiving transducers (2) is 20cm.
4. put according to claim 1 or 2 or 3 described full separate type single pore sound wave trial assemblies, it is characterized in that: an overflow pipe (4) that is used for water filling in detecting the hole is respectively established in described detection probe top and bottom.
5. the full separate type single pore sound wave trial assembly adjustment method of putting is characterized in that step is as follows:
A, water-filling in three leather bags (3) are respectively put into detection probe then and are detected the hole predetermined position;
B, successively to leather bag (3) water-filling that is positioned at detection probe middle part, top and bottom, leather bag (3) is expanded be adjacent to coupling, promptly begin sampling in the water filling process, if the waveform of gathering is fuzzy with detecting the hole hole wall, and leather bag (3) internal pressure then goes to step c near its utmost carrying ability; If the waveform of gathering is clear, then go to step f;
C, part are discharged water in three leather bags (3), make leather bag (3) and detect the hole hole wall and throw off, rotate vertically or radially mobile detection probe after, execution in step b once more;
D, after step c debugs repeatedly, if the waveform of gathering is still fuzzy, the test zone rock is met water and can not occurred expanding or ruckbildung simultaneously, then goes to step e; If the waveform of gathering is clear, then go to step f;
E, by overflow pipe (4) slowly water filling in detecting the hole of detection probe top and bottom, make current filling leather bag (3) and the slit of detecting between the hole wall of hole, improve the coupling between leather bag (3) and detection hole hole wall;
F, stop water-filling, begin to detect.
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| CN2010101152183A CN101782554B (en) | 2010-02-26 | 2010-02-26 | Full-split single pore sound wave test device and debugging method thereof |
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| CN2010101152183A CN101782554B (en) | 2010-02-26 | 2010-02-26 | Full-split single pore sound wave test device and debugging method thereof |
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| CN101782554B CN101782554B (en) | 2012-01-11 |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230916A (en) * | 2011-06-10 | 2011-11-02 | 西南交通大学 | Single-transmitter double-receiver working method for ultrasonic flaw detection |
| CN102704438A (en) * | 2012-06-25 | 2012-10-03 | 中国水电顾问集团华东勘测设计研究院 | Test method for operation safety of tunnel under effect of external water pressure |
| CN103147748A (en) * | 2013-03-19 | 2013-06-12 | 中国水电顾问集团中南勘测设计研究院 | Downwards-opened drilling acoustic wave test water plugging device |
| CN103698398A (en) * | 2014-01-22 | 2014-04-02 | 武汉大学 | Transducer for detecting rock mass acoustic wave |
| CN104278983A (en) * | 2014-09-30 | 2015-01-14 | 中国电建集团西北勘测设计研究院有限公司 | Coupling device for sound-wave all-around testing dry hole probe |
| CN104713950A (en) * | 2015-03-31 | 2015-06-17 | 中国科学院武汉岩土力学研究所 | Acoustic wave test coupling device and test method thereof |
| CN105467014A (en) * | 2015-12-31 | 2016-04-06 | 中国科学院武汉岩土力学研究所 | Device and method for automatically testing loose circle of surrounding rock in dry hole |
| CN105489106A (en) * | 2016-01-08 | 2016-04-13 | 河南理工大学 | Hard roof water-injection softening laboratorial simulation system and method |
| CN105548354A (en) * | 2015-11-27 | 2016-05-04 | 中国电建集团贵阳勘测设计研究院有限公司 | Device for engineering quality test in dry hole |
| CN109488380A (en) * | 2018-11-29 | 2019-03-19 | 山东理工大学 | A kind of tube wave monitoring method of underground engineering dynamic disaster local solution danger effect |
| CN110700819A (en) * | 2019-10-12 | 2020-01-17 | 重庆市市政设计研究院 | Anhydrous drilling sound wave detection and water pressure test integrated device |
| CN111220710A (en) * | 2019-11-07 | 2020-06-02 | 中国石油天然气集团公司管材研究所 | Pipeline stripping monitoring system and monitoring method |
| CN112433007A (en) * | 2020-11-10 | 2021-03-02 | 湖南柿竹园有色金属有限责任公司 | Mobile portable acoustic emission probe fixing and silencing device |
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230916A (en) * | 2011-06-10 | 2011-11-02 | 西南交通大学 | Single-transmitter double-receiver working method for ultrasonic flaw detection |
| CN102704438A (en) * | 2012-06-25 | 2012-10-03 | 中国水电顾问集团华东勘测设计研究院 | Test method for operation safety of tunnel under effect of external water pressure |
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| CN104713950A (en) * | 2015-03-31 | 2015-06-17 | 中国科学院武汉岩土力学研究所 | Acoustic wave test coupling device and test method thereof |
| CN104713950B (en) * | 2015-03-31 | 2017-11-14 | 中国科学院武汉岩土力学研究所 | Sonic test coupling device and method of testing |
| CN105548354A (en) * | 2015-11-27 | 2016-05-04 | 中国电建集团贵阳勘测设计研究院有限公司 | Device for engineering quality test in dry hole |
| CN105548354B (en) * | 2015-11-27 | 2018-11-02 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of device carrying out construction quality test in dry hole |
| CN105467014A (en) * | 2015-12-31 | 2016-04-06 | 中国科学院武汉岩土力学研究所 | Device and method for automatically testing loose circle of surrounding rock in dry hole |
| CN105489106A (en) * | 2016-01-08 | 2016-04-13 | 河南理工大学 | Hard roof water-injection softening laboratorial simulation system and method |
| CN105489106B (en) * | 2016-01-08 | 2018-02-13 | 河南理工大学 | A kind of laboratory simulation tight roof water filling melded system and method |
| CN109488380A (en) * | 2018-11-29 | 2019-03-19 | 山东理工大学 | A kind of tube wave monitoring method of underground engineering dynamic disaster local solution danger effect |
| CN110700819A (en) * | 2019-10-12 | 2020-01-17 | 重庆市市政设计研究院 | Anhydrous drilling sound wave detection and water pressure test integrated device |
| CN110700819B (en) * | 2019-10-12 | 2023-08-18 | 重庆市市政设计研究院 | Anhydrous drilling sound wave detection and pressurized water test integrated device |
| CN111220710A (en) * | 2019-11-07 | 2020-06-02 | 中国石油天然气集团公司管材研究所 | Pipeline stripping monitoring system and monitoring method |
| CN111220710B (en) * | 2019-11-07 | 2023-09-08 | 中国石油天然气集团公司管材研究所 | Pipeline stripping monitoring system and monitoring method |
| CN112433007A (en) * | 2020-11-10 | 2021-03-02 | 湖南柿竹园有色金属有限责任公司 | Mobile portable acoustic emission probe fixing and silencing device |
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