CN106437680A - Fissure measuring device matched with borehole television imager and using method - Google Patents
Fissure measuring device matched with borehole television imager and using method Download PDFInfo
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- CN106437680A CN106437680A CN201611103066.9A CN201611103066A CN106437680A CN 106437680 A CN106437680 A CN 106437680A CN 201611103066 A CN201611103066 A CN 201611103066A CN 106437680 A CN106437680 A CN 106437680A
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000000694 effects Effects 0.000 claims abstract description 5
- 230000011514 reflex Effects 0.000 claims description 34
- 238000005553 drilling Methods 0.000 claims description 20
- 238000004458 analytical method Methods 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 7
- 238000003384 imaging method Methods 0.000 claims description 7
- 238000005259 measurement Methods 0.000 claims description 6
- 238000011835 investigation Methods 0.000 claims description 4
- 230000005307 ferromagnetism Effects 0.000 claims description 3
- 239000012780 transparent material Substances 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 abstract description 4
- 239000000523 sample Substances 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 239000003245 coal Substances 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 208000031481 Pathologic Constriction Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000023753 dehiscence Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- VIKNJXKGJWUCNN-XGXHKTLJSA-N norethisterone Chemical compound O=C1CC[C@@H]2[C@H]3CC[C@](C)([C@](CC4)(O)C#C)[C@@H]4[C@@H]3CCC2=C1 VIKNJXKGJWUCNN-XGXHKTLJSA-N 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 210000001215 vagina Anatomy 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/002—Survey of boreholes or wells by visual inspection
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
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- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics (AREA)
- Geophysics And Detection Of Objects (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The invention discloses a fissure measuring device matched with a borehole television imager and a using method. The fissure measuring device comprises a vertical outer cylinder, an inner cylinder for installing a probe of a boring imager and a power supply control box; a reflecting lens is arranged on the upper portion of a cavity of the outer cylinder, and a bore wall image observed through the outer cylinder can be reflected by the reflecting lens; scales are arranged on the inner wall, opposite to the position where the reflecting lens is located, of the outer cylinder, and semi-transparent comparison strips are arranged on the scales at intervals. The distance between a camera and the reflecting lens is adjusted by relatively moving the outer cylinder and the inner cylinder, the bore fissure breaking condition is completely recorded through the camera, and the fissure width is obtained by comparing scale or fissure width with the comparison strips. The simple optical principle is adopted so that the bore wall image parallel to the axial direction of the camera can vertically income the camera, the observing effect is improved, and quantitative description of the bore wall fissure and the separation layer width is achieved.
Description
Technical field
The present invention relates to drilling television imager.
Background technology
Drilling television imager, as a kind of auxiliary investigation way, is extensively made in coal mining and some underground engineerings
With it gathers borehole wall panoramic picture by photographic head, so that engineers and technicians can obtain the lithology species on stratum, rock stratum
The information such as thickness, fractured situation.
Fractured situation is to evaluate the important indicator of rock layer mechanics performance quality, accurately measures crack orientation and aperture
Particularly significant.For the current drilling television imager using, limited by its camera structure, can only be taken the photograph by boring
As head observes the overall picture of hole wall rock, and some constructions such as width of the width in crack, absciss layer in boring cannot be quantitatively determined
Joint information, engineers and technicians can only rule of thumb evaluate fractured situation and absciss layer width size in boring etc.
Information, this mode there will naturally be larger error and requires it is impossible to meet.
For the problems referred to above, people have invented a kind of borehole television three-dimensional imaging instrument, this imager utilize built-in after
Process software and annular hole wall image mosaic can be launched into plane picture.Key using this borehole television three-dimensional imaging instrument
Be fltting speed will uniformly, if the fltting speed of photographic head is not at the uniform velocity, the image of expansion have overlapping or unintelligible it is impossible to
Obtain effective information.And in the engineering such as advance borehole detection in some coal minings, because working condition is poor, it is difficult to ensure that
The at the uniform velocity propulsion of photographic head, causes very big inconvenience to detection operations.So, this borehole television three-dimensional imaging instrument is opened in coal
Operate in the engineerings such as the advance borehole detection adopted relatively difficult, less efficient.
Content of the invention
In order to overcome existing borehole television three-dimensional imaging instrument to detect etc. in engineering in advance borehole, because fltting speed be difficult to even
Speed, so that it is relatively difficult to operate, less efficient technological deficiency, the present invention provides a kind of drilling television imager supporting
Fracture measuring device, in order to quantitative detection boring fractured situation, for judge strata movement situation offer effective foundation.
Present invention simultaneously provides the using method using this device.
The technical scheme is that：
A kind of supporting fracture measuring device of drilling television imager is it is characterised in that it includes：Vertical outer tube and interior
Cylinder and power controling box；Wherein：
Described outer tube is transparent outer tube, and the top of outer tube barrel chamber is provided with reflex reflector lens, the minute surface of reflex reflector lens and outer tube
Axis angle is 45 degree, can reflex to, by reflex reflector lens, the hole wall scene observing through outer tube；Height residing for reflex reflector lens
The outer tube inner wall on degree opposite is provided with scale, and on graduation mark, interval setting translucent contrasts striped, translucent contrast striped again
Width goes forward one by one successively, until being covered with the height of the opposite residing for reflex reflector lens；It is provided with ring in the barrel of outer tube bottom to be uniformly distributed
Eight electric magnet, all electromagnet coils are in parallel, and two joints after parallel connection are connected on two metallic bonds；Outer tube bottom
Inwall is provided with the outer tube guide groove of two symmetrical axial directions；Two metallic bonds are separately mounted in two symmetrical outer tube guide grooves；
Described inner core is the inner core of reducing, and inner core top external diameter mates with outer tube internal diameter, lower outer diameter and outer tube external diameter
Unanimously, inner core top is arranged in outer tube and is in reflex reflector lens with lower portion, and inner tank theca is provided with corresponding with outer tube guide groove
Inner core guide groove, so that above-mentioned two metallic bonds being arranged in outer tube guide groove is also simultaneously attached in inner core guide groove, metallic bond was both
Limit inner core and outer tube mutually rotates, and do not affect inner core and slide axially in outer tube；Interior barrel chamber is used for installing borehole television
The photographic head of imager；It is provided with eight inner core electric magnet corresponding with outer tube electric magnet, all electromagnetism in the barrel of inner core bottom
Coil two joint of ferrum is also connected in parallel on above-mentioned two metallic bond；When inner core and outer tube electromagnetism ferromagnetism same/opposite, interior
Cylinder carries photographic head up/down in outer tube and moves；
Described power controling box is the current control being provided with accumulator, precise control size of current and direction in casing
Element, output the two poles of the earth of current controling element are electrically connected with above-mentioned two metallic bonds by electric switch and wire.
Further, described inner core is provided with some screws for fixing drilling television imager photographic head.
Further, in order that photographic head clear view is to hole wall situation, described outer tube is antifog transparent material.
Further, in order to protect reflex reflector lens, it is full of compacting body in the space after reflex reflector lens.
The fracture measuring device using method of the present invention, comprises the following steps：
The first step, during bore detecting, is detected for the first time to boring first by borehole imaging instrument, and is recorded boring and split
The depth location of gap rupture event；
Second step, then, photographic head is fixed on inner core, carries out quadratic probing to boring；Before starting to detect, open electricity
The electric switch of source control chamber, adjusts size of current and direction, makes photographic head reach maximum apart from the distance of reflex reflector lens；
3rd step, the fracture measuring device of the present invention is progressively transferred to the investigation depth position in boring with photographic head
Put, in decentralization process, when observing the wall of a borehole crack, operate electric switch, adjust the distance of photographic head and reflex reflector lens, directly
To reaching optimal photographic effect, recorded a video, the scale on outer tube inner wall and contrast strip record are got off；Record and split at one
Adjust electric current after gap rupture event, make inner core and outer tube relative movement, so that reflex reflector lens distance is reached with photographic head front end distance
Maximum, then finds at next crack and repeats aforesaid operations, until by all borehole fissure rupture event records on the wall of a borehole
Finish；
4th step, by analysis video recording result, realizes carrying out quantitative measurement to shooting fracture width；
During analysis, carry out quantitative analyses, concrete grammar in conjunction with the scale on outer sleeve inwall and contrast striped fracture
It is：
When surveyed crack and borehole axial angle are larger, at this moment crack and scale direction are substantially parallel, by graduation mark
Directly read fracture width；
When crack and borehole axial angle are less, now, it is difficult directly to be measured using scale, using contrast striped
It is determined, select the width that the width that contrast striped closest with crack is institute's fracture detection, if single contrast striped
Width do not reach the width in detected crack, multiple contrast stripeds can be combined the width judging crack.
Advantages of the present invention and beneficial effect are：
1st, the present invention utilizes illuminator principle, and existing drilling television imager supports the use, and not only whole process have taken brill
The rupture event such as all borehole fissure and absciss layer on hole wall, and Treatment Analysis video recording result when, without as prior art that
Sample needs to be converted into plane picture, but the crack photographing directly is compared thus obtaining crack width with contrast striped or scale
Degree, so need the harsh conditions of at the uniform velocity propulsion when there is not video recording.
2nd, the existing drilling television imager of this matched with devices uses, and is modified without to existing instrument, significantly drops
Low use cost；The design of whole device is accurate, simple to operate, and supporting existing drilling television imager does not affect existing when using
Some observations, recording function.Using simple optical principle, make the hole wall scene vertical incidence shooting parallel to photographic head axial direction
Head, improves observation effect, and achieves the quantitative description to hole wall crack and absciss layer width.
3rd, the inventive method is utilized equally can to combine multiple contrast stripeds with quantitative measurement absciss layer width, during measurement
Get up to judge absciss layer width.
Brief description
Fig. 1 is embodiment overall structure diagram；
Fig. 2 is inner tube structure schematic diagram；
Fig. 3 is the Section A-A schematic diagram of Fig. 2；
Fig. 4 is outer tube structure schematic diagram；
Fig. 5 is the section B-B schematic diagram of Fig. 4；
Fig. 6 is optical schematic diagram；
Fig. 7 is scale and contrast striped layout drawing.
In figure：1- photographic head, 2- outer tube electric magnet, 3- screw, 4- wire, 5- outer tube guide groove, 6- inner core guide groove, 7- stores
Battery, 8- current controling element, 9- electric switch, 10- metallic bond, 11- inner core electric magnet, 12- casing, 13- scale, 14- contrasts
Striped, 15- reflex reflector lens, 16- the wall of a borehole, 17- outer tube, 18- inner core, 19- physical objects, α by survey crack and boring axial direction
Angle.
Specific embodiment
Below in conjunction with the accompanying drawings one of present invention embodiment is further described：
As shown in figure 1, a kind of fracture measuring device supporting with drilling television imager, including：Outer tube 17, inner core 18 and
Power controling box；
Described outer tube 17 constructs as shown in Figure 4, Figure 5, and it is transparent outer tube, and the top in outer tube 17 chamber is provided with reflex reflector lens
15, the minute surface of reflex reflector lens 15 is 45 degree with outer tube 17 axis angle, can be reflexed to by reflex reflector lens 15 and see through outer tube 17
The hole wall scene measuring；The barrel on the height opposite residing for reflex reflector lens 15 is provided with scale 13, at interval of a milli on scale 13
Rice setting translucent contrast striped 14, translucent contrast striped 14 width goes forward one by one successively from one millimeter of beginning, goes forward one by one one every time
Millimeter, thus contrast width of fringe be followed successively by one millimeter, two millimeters, three millimeters ... .. by that analogy, deployment scenarios are shown in Fig. 7, Fig. 7
In show that millimeter scale 13 has 50 lines, millimeter scale 13 is arranged altogether eight contrast stripeds 14, the 8th contrast article
Stricture of vagina is the widest to reach eight millimeters；It is provided with the equally distributed eight outer tube electric magnet 2 of ring, all electromagnetism in the barrel of outer tube 17 chamber bottom
The coils from parallel connection of coils of ferrum 12, two joints after parallel connection are connected on two metallic bonds 10；Outer tube 17 lower inner wall is provided with two
The outer tube guide groove 5 of individual symmetrical axial direction；Two metallic bonds 10 are separately mounted in two symmetrical outer tube guide grooves 5；
Described inner core 18 constructs as shown in Figure 2 and Figure 3, and it is the inner core of reducing, in inner core 18 top external diameter and outer tube 17
Footpath is mated, and lower outer diameter is consistent with outer tube 17 external diameter, and inner core 18 top is arranged in outer tube 17 and is in reflex reflector lens below 15
Position, inner core 18 outer wall is provided with inner core guide groove 6 corresponding with outer tube guide groove 5, so that above-mentioned two metallic bond 10 is also installed simultaneously
6 in inner core guide groove, metallic bond 10 limits inner core 18 and outer tube 17 mutually rotates, but does not affect inner core 18 in outer tube 17
Slide axially；Inner core 18 chamber is used for installing the photographic head 1 of drilling television imager；It is provided with the barrel of inner core 18 bottom with outward
The cylinder corresponding eight inner core electric magnet 11 of electric magnet 2, coil two joint of all inner core electric magnet 11 is also connected in parallel on above-mentioned two
On individual metallic bond 10；When the electromagnetism ferromagnetism same/opposite of inner core 18 and outer tube 17, inner core 18 carries photographic head 1 in outer tube
In 17, up/down moves；
Described power controling box is the electricity being provided with accumulator 7 and precise control size of current and direction in casing 12
Flow-control element 8, electric switch 9 and wire 4 and above-mentioned two metallic bonds 10 electricity phase are passed through in output the two poles of the earth of current controling element 8
Even.
Further, described inner core 18 is provided with some screws 3 for fixing drilling television imager photographic head 1.
Further, in order that photographic head 1 clear view is to the wall of a borehole 16 situation, described outer tube 17 is antifog transparent material
Material.
Further, in order to protect reflex reflector lens 15, it is full of compacting body thing 19 in the space after reflex reflector lens 15.
The fracture measuring device using method of the present invention, comprises the following steps：
The first step, during bore detecting, the photographic head 1 first by borehole imaging instrument is detected for the first time to boring, and remembers
The depth location of the lower borehole fissure rupture event of record.
Second step, then, photographic head 1 is fixed on inner core 18, carries out quadratic probing to boring；Before starting to detect, beat
The electric switch of switch power supply control chamber, adjusts size of current and direction, so that photographic head 1 is reached apart from the distance of reflex reflector lens 15
Greatly；
3rd step, the fracture measuring device of the present invention is progressively transferred to the investigation depth position in boring with photographic head 1
Put, in decentralization process, when observing the wall of a borehole crack, operate electric switch, adjust photographic head 1 and reflex reflector lens 15 away from
From, until it reaches optimal photographic effect, recorded a video, the scale on outer tube 17 inwall and contrast striped complete documentation are got off；
Recorded and adjusted electric current after crack rupture event at, made inner core 18 and outer tube 17 relative movement, make reflex reflector lens 15 distance with
Photographic head 1 front end distance reaches maximum, then finds at next crack and repeats aforesaid operations, until by all brills on the wall of a borehole
Porous dehiscence gap rupture event record finishes；
4th step, by analysis video recording result, realizes carrying out quantitative measurement to shooting fracture width；Measurement optical principle is such as
Shown in Fig. 6；
During analysis, carry out quantitative analyses in conjunction with the scale on outer tube 17 inwall and contrast striped fracture, concrete grammar is：
When surveyed crack and borehole axial angle α are larger, at this moment crack and scale direction are substantially parallel, by graduation mark
Directly read fracture width；
When surveyed crack and borehole axial angle α are less, now, it is difficult directly to be measured using scale, using right
It is determined than striped, select the width that the width that contrast striped closest with crack is institute's fracture detection, if single right
Do not reach the width in detected crack than the width of striped, multiple contrast stripeds can be combined the width judging crack.
Claims (5)
1. a kind of supporting fracture measuring device of drilling television imager is it is characterised in that it includes vertical outer tube and inner core
And power controling box；Wherein：
Described outer tube is transparent outer tube, and the top of outer tube barrel chamber is provided with reflex reflector lens, the minute surface of reflex reflector lens and outer tube axis
Angle is 45 degree, can reflex to, by reflex reflector lens, the hole wall scene observing through outer tube；Height pair residing for reflex reflector lens
The outer tube inner wall in face is provided with scale, and on graduation mark, interval setting translucent contrasts striped, translucent contrast width of fringe again
Go forward one by one successively, until being covered with the height of the opposite residing for reflex reflector lens；It is provided with ring equally distributed eight in the barrel of outer tube bottom
Individual electric magnet, all electromagnet coils are in parallel, and two joints after parallel connection are connected on two metallic bonds；Outer tube lower inner wall
It is provided with the outer tube guide groove of two symmetrical axial directions；Two metallic bonds are separately mounted in two symmetrical outer tube guide grooves；
Described inner core is the inner core of reducing, and inner core top external diameter is mated with outer tube internal diameter, and lower outer diameter is consistent with outer tube external diameter,
Inner core top is arranged in outer tube and is in reflex reflector lens with lower portion, and inner tank theca is provided with inner core corresponding with outer tube guide groove
Guide groove, makes above-mentioned two metallic bonds being arranged in outer tube guide groove also be simultaneously attached in inner core guide groove, and metallic bond had both limited interior
Cylinder and outer tube mutually rotate, and do not affect inner core and slide axially in outer tube；Interior barrel chamber is used for installing drilling television imager
Photographic head；It is provided with eight inner core electric magnet corresponding with outer tube electric magnet, the line of all electric magnet in the barrel of inner core bottom
Enclose two joints to be also connected in parallel on above-mentioned two metallic bond；When inner core is identical or contrary with outer tube electromagnetism ferromagnetism, inner core is taken
Band photographic head up or down in outer tube moves；
Described power controling box is the current control unit being provided with accumulator, precise control size of current and direction in casing
Part, output the two poles of the earth of current controling element are electrically connected with above-mentioned two metallic bonds by electric switch and wire.
2. the supporting fracture measuring device of drilling television imager as claimed in claim 1 is it is characterised in that described inner core
It is provided with the multiple screws for fixing drilling television imager photographic head.
3. the supporting fracture measuring device of drilling television imager as claimed in claim 1 is it is characterised in that described outer tube
For antifog transparent material.
4. the supporting fracture measuring device of drilling television imager as claimed in claim 1 is it is characterised in that in reflex reflector lens
It is full of compacting body in space below.
5. the user of the supporting fracture measuring device of the arbitrary described drilling television imager of a kind of utilization claim 1-4
Method is it is characterised in that step is as follows：
The first step, during bore detecting, is detected to boring for the first time first by borehole imaging instrument, and it is broken to record borehole fissure
Split the depth location of situation；
Second step, then, photographic head is fixed on inner core, carries out quadratic probing to boring；Before starting to detect, turn on the power control
The electric switch of case processed, adjusts size of current and direction, makes photographic head reach maximum apart from the distance of reflex reflector lens；
3rd step, fracture measuring device is progressively transferred to the investigation depth position in boring, in decentralization process with photographic head
In, when observing the wall of a borehole crack, operate electric switch, adjust the distance of photographic head and reflex reflector lens, until it reaches most preferably take the photograph
As effect, recorded a video, the scale on outer tube inner wall and contrast strip record are got off；After having recorded crack rupture event at
Adjust electric current, make inner core and outer tube relative movement, make reflex reflector lens distance reach maximum with photographic head front end distance, then find
At next, aforesaid operations are repeated in crack, until all borehole fissure rupture event records on the wall of a borehole are finished；
4th step, by analysis video recording result, realizes carrying out quantitative measurement to shooting fracture width；
During analysis, carry out quantitative analyses in conjunction with the scale on outer sleeve inwall and contrast striped fracture, concrete grammar is：
When surveyed crack and borehole axial angle are larger, at this moment crack and scale direction are substantially parallel, direct by graduation mark
Read fracture width；
When crack and borehole axial angle are less, now, it is difficult directly to be measured using scale, carried out using contrast striped
Determine, select the width that the width that contrast striped closest with crack is institute's fracture detection, if the width of single contrast striped
Degree does not reach the width in detected crack, needs for multiple contrast stripeds to combine the width judging crack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611103066.9A CN106437680B (en) | 2016-12-05 | 2016-12-05 | Crack measuring device matched with borehole television imager and using method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611103066.9A CN106437680B (en) | 2016-12-05 | 2016-12-05 | Crack measuring device matched with borehole television imager and using method |
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| Publication Number | Publication Date |
|---|---|
| CN106437680A true CN106437680A (en) | 2017-02-22 |
| CN106437680B CN106437680B (en) | 2023-03-21 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108760754A (en) * | 2018-06-05 | 2018-11-06 | 安徽省（水利部淮河水利委员会）水利科学研究院（安徽省水利工程质量检测中心站） | A kind of sucked type cracking of wall surface detection device and detection method |
| CN108798637A (en) * | 2018-06-07 | 2018-11-13 | 山东科技大学 | Detection method and its propulsion device are pried through in the pinpoint drilling of one kind |
| CN109577952A (en) * | 2019-01-18 | 2019-04-05 | 山东东泰工程咨询有限公司 | A kind of tunnel double-lining crack treatment drilling hole location detection instrument and its working method |
| CN109868791A (en) * | 2019-01-15 | 2019-06-11 | 北京国电水利电力工程有限公司 | The fining grout construction method of cultural relic protection project rock mass microfissure water |
| WO2019128015A1 (en) * | 2017-12-29 | 2019-07-04 | 中国矿业大学 | In-situ micro-observation apparatus and method for engineering rock mass microcosmic |
| CN110656927A (en) * | 2019-08-26 | 2020-01-07 | 中国矿业大学 | Fracture image measuring method based on borehole television |
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| CN108760754B (en) * | 2018-06-05 | 2021-06-22 | 安徽省（水利部淮河水利委员会）水利科学研究院（安徽省水利工程质量检测中心站） | Sucker type wall surface crack detection device and detection method |
| CN108798637A (en) * | 2018-06-07 | 2018-11-13 | 山东科技大学 | Detection method and its propulsion device are pried through in the pinpoint drilling of one kind |
| CN109868791A (en) * | 2019-01-15 | 2019-06-11 | 北京国电水利电力工程有限公司 | The fining grout construction method of cultural relic protection project rock mass microfissure water |
| CN109577952A (en) * | 2019-01-18 | 2019-04-05 | 山东东泰工程咨询有限公司 | A kind of tunnel double-lining crack treatment drilling hole location detection instrument and its working method |
| CN109577952B (en) * | 2019-01-18 | 2023-10-03 | 山东东泰工程咨询有限公司 | Hole position detection tool for tunnel secondary lining crack treatment drilling and working method thereof |
| CN110656927A (en) * | 2019-08-26 | 2020-01-07 | 中国矿业大学 | Fracture image measuring method based on borehole television |
| CN110656927B (en) * | 2019-08-26 | 2021-06-18 | 中国矿业大学 | Fracture image measuring method based on borehole television |
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