CN110821430A - Fixing device for drilling camera hole opening and mounting method - Google Patents
Fixing device for drilling camera hole opening and mounting method Download PDFInfo
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- CN110821430A CN110821430A CN201911166310.XA CN201911166310A CN110821430A CN 110821430 A CN110821430 A CN 110821430A CN 201911166310 A CN201911166310 A CN 201911166310A CN 110821430 A CN110821430 A CN 110821430A
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- 238000005553 drilling Methods 0.000 title claims abstract description 70
- 238000000034 method Methods 0.000 title claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 73
- 239000010959 steel Substances 0.000 claims abstract description 73
- 239000011435 rock Substances 0.000 claims abstract description 26
- 238000012360 testing method Methods 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000005259 measurement Methods 0.000 claims abstract description 9
- 238000004140 cleaning Methods 0.000 claims abstract description 4
- 239000002360 explosive Substances 0.000 claims description 13
- 239000000523 sample Substances 0.000 claims description 7
- 238000004064 recycling Methods 0.000 claims description 2
- 238000005507 spraying Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 238000003384 imaging method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000007619 statistical method Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Images
Classifications
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- 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
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/01—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for anchoring the tools or the like
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- Life Sciences & Earth Sciences (AREA)
- 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)
- Earth Drilling (AREA)
Abstract
The utility model provides a be used for drilling camera hole mouth fixing device and installation method, includes and bears the tray, it sets up on rock mass ground surface to bear the tray, has bored vertical drilling on the rock mass, the arc surface that bears the tray is provided with the outer steel sheet of arc, and the outer steel sheet inboard of arc is provided with interior steel ring, and steel wire net connection is passed through with the outer steel sheet bottom of arc in interior steel ring bottom, be provided with the inflation pencil between the outer steel sheet of interior steel ring and arc. A method of installing a borehole camera aperture fixture, comprising the steps of: step 1: drilling a vertical drill hole; step 2: cleaning the vertical drilled hole and placing a fixing device; and step 3: placing the expansion medicated roll; and 4, step 4: fixing the fixing device; and 5: adjusting the position of the fixing device; step 6: installing a ruler reading device and a depth encoder; and 7: performing borehole camera shooting measurement; and 8: and (5) removing the fixing device after testing. The expansion cartridge reacts with water to extrude the rock mass, and the expansion cartridge, the inner steel ring, the outer steel ring and the rock mass form a compact hardened whole.
Description
Technical Field
The invention belongs to the technical field of geotechnical engineering drilling camera test, and particularly relates to a drilling camera orifice fixing device and an installation method.
Background
The underground rock mass is composed of rock blocks formed by different groups of structure surfaces in a staggered manner, the development characteristics and the distribution forms of the structure surfaces in the rock mass form the structure of the rock mass, the structure surfaces develop in the rock mass and are difficult to directly observe, and various geometric parameters of the structure surfaces can not be obtained. The drilling and shooting technology is widely applied to the fields of geotechnical engineering (underground stopes, underground water power stations, deep tunnels) and the like at present. A common drilling camera device is mainly a digital panoramic drilling camera system, a conical reflector in a camera probe of the system acquires image information of a drilling hole wall of 360 degrees, a depth encoder acquires position information of the camera probe, and a panoramic image of the drilling hole wall of 360 degrees is finally acquired through measurement and later-stage data processing and analysis. Scientific researchers have conducted deep structural face type recognition and development characteristic research on the aspects of shape, width, color, staggered relation and the like of structural faces, have analyzed the correlation of structural faces of large and small scales, and have provided a statistical method of rock structural face occurrence of underground engineering. Therefore, the targeted structural plane detection technology and statistical method are important contents for developing underground structural plane research.
The current drilling is made a video recording and is measured vertical hole and is fixed with the tripod, then fixes the depth sensor with the screw on the tripod, and the scene can make fixing device produce through long-time the use and rust the scheduling problem because humidity, dust scheduling problem, and the inaccurate problem of measurement shake can appear in the screw tightening, can appear the condition that the screw thread was twisted even.
Disclosure of Invention
The method improves the defects of the traditional borehole video test method, and the currently used borehole video probe is mostly an optical borehole video probe with the diameter of 5.3cm and the length of 40.0cm and in a cylindrical shape.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a be used for drilling camera hole mouth fixing device, is including bearing tray, interior steel ring, the outer steel sheet of arc and wire net, bearing the tray and setting up on rock mass ground surface, it has vertical drilling to bore on the rock mass, and the internal diameter of vertical drilling is greater than the setting of drilling camera diameter, the arc surface that bears the tray is provided with the outer steel sheet of arc, and the outer steel sheet inboard of arc is provided with interior steel ring, and interior steel ring bottom is connected through the wire net with the outer steel sheet bottom of arc, be provided with the inflation cartridge case between the outer steel sheet of interior steel ring and arc.
The radian of the two symmetrically arranged arc-shaped outer steel plates is larger than the radians of the other two symmetrically arranged arc-shaped outer steel plates.
The upper end face of the inner steel ring is provided with a threaded hole.
A method of installing a borehole camera aperture fixture, comprising the steps of:
step 1: drilling a vertical drill hole with the depth of 30-50m at the position of a side slope or a stope step of open-pit ore by using a drilling machine;
step 2: cleaning scum at the periphery of the vertical drill hole to ensure that no bulge is formed at the periphery of the vertical drill hole, and placing the fixing device into the vertical drill hole;
and step 3: then placing a proper amount of expansion explosive cartridges between the inner steel ring and the arc-shaped outer steel plate;
and 4, step 4: injecting a certain amount of water into the expansion explosive cartridge along the vertical drilling hole, standing for a period of time, and forming a dense hardened whole by the expansion of the expansion explosive cartridge, the inner steel ring, the arc-shaped outer steel plate and the rock mass;
and 5: leveling the fixture for the bore and ensuring that the measuring device axis coincides with the vertical bore axis;
step 6: a ruler reading device of a measuring drilling camera device is placed on the upper surface of an inner steel ring of the fixing device, the ruler reading device is fixed through the matching of a bolt and a threaded hole in the inner steel ring, and meanwhile, a drilling camera depth encoder is installed on the upper surface of the inner steel ring;
and 7: performing drilling camera measurement, connecting a drilling camera probe with a signal wire, connecting the signal wire and a depth encoder with a drilling camera host, and performing vertical hole drilling camera test;
and 8: and after the test is finished, spraying water on the expansion cartridge of the fixing device, standing for a period of time, dismantling the fixing device, and recycling.
The invention has the beneficial effects that:
1. the expansion explosive cartridge reacts with water to extrude the rock mass around the drilled hole, and the expansion explosive cartridge, the inner and outer steel wall rings and the rock mass form a compact hardened whole;
2. when the drilling video test is carried out, the device can be completely fixed at the position of the orifice, and adverse factors such as shaking of the ruler reading device and the like are avoided after the device is connected with the reading device;
3. the four device dragging seats are placed on the ground surface of the drilled hole, so that the device can be better positioned in a central position before being fixed, and the device can also be better fixed;
4. the device can be used for better drilling and shooting measurement, can conveniently and accurately obtain an expanded image or a three-dimensional image, can more clearly reflect the development condition of the rock mass joint crack formed by the measured points, and more accurately represents the picture formed by drilling and shooting.
5. The method has the main advantages of recovery, strong applicability, accurate measurement of the depth of the borehole camera image, and better conformity between the image and the actual geological condition of the rock mass on site. The underground drilling geological information digitalization is realized, the operation is simple, the image is clear, and the underground drilling can be subjected to omnibearing observation imaging. When the deep hole opening is measured, the measuring accuracy of the hole opening fixing device is more obvious, the technical problem that the depth sensor is not accurately fixed in the traditional drilling shooting technology is solved, and the drilling imaging technology and the device are substantially developed.
Drawings
FIG. 1 is a front view of a borehole camera aperture fixture of the present invention;
FIG. 2 is a top view of the camera aperture fixture for drilling of the present invention;
1-bearing tray, 2-inner steel ring, 3-expansion explosive cartridge, 4-arc outer steel plate, 5-steel wire mesh, 6-vertical drilling hole and 7-rock mass.
Detailed Description
The invention is described in further detail below with reference to the figures and the detailed description.
As shown in figures 1 and 2, a fixing device for a drilling and shooting hole opening comprises a bearing tray 1, an inner steel ring 2, an arc-shaped outer steel plate 4 and a steel wire mesh 5, wherein the bearing tray 1 is arranged on the ground surface of a rock body 7, the bearing tray 1 is used for dragging the fixing device to avoid falling into a vertical drilling hole 6, the vertical drilling hole 6 is drilled on the rock body 7, the depth of the vertical drilling hole 6 is determined according to the test condition and the condition of the result of the rock body 7 to be tested, the inner diameter of the vertical drilling hole 6 is larger than the diameter of a drilling camera, the arc surface of the bearing tray 1 is provided with the arc-shaped outer steel plate 4, the arc-shaped outer steel plate 4 is provided with four arc-shaped outer steel plates, the radian of two symmetrically arranged arc-shaped outer steel plates 4 is larger than the radians of the other two symmetrically arranged arc-shaped outer steel plates 4, the inner steel ring 2 is arranged, the bottom end of the inner steel ring 2 is connected with the bottom end of the outer arc steel plate 4 through a steel wire mesh 5, an expansion cartridge 3 is arranged between the inner steel ring 2 and the outer arc steel plate 4, and the quantity of the expansion cartridges 3 is determined according to the inner diameter of the vertical drilled hole 6.
After the expansion cartridge 3 is installed, water is added for reaction, and an expanding agent in the expansion cartridge 3 reacts with the water to form a hardened body with high strength and hardness, and the hardened body is closely combined with the rock mass 7 on the inner wall of the vertical drilling hole 6.
A method of installing a borehole camera aperture fixture, comprising the steps of:
step 1: drilling a vertical borehole 6 with the depth of 40m at the side slope of the open-air ore by using a 90mm drilling machine;
step 2: cleaning scum at the periphery of the vertical drilling hole 6, processing slag blocks on the surface of the vertical drilling hole 6 to ensure that the periphery of the vertical drilling hole 6 is not raised and kept clean, putting a fixing device into the vertical drilling hole 6, and dragging the inner part of the vertical drilling hole 6 through four bearing trays 1 on the fixing device;
and step 3: placing fifteen bags of expansion explosive cartridges 3 between the inner steel ring 2 and the arc-shaped outer steel plate 4 according to the specific situation of the vertical drilling 6, and placing the expansion explosive cartridges in order;
and 4, step 4: 1Kg of water is injected into the expansion explosive cartridge 3 along the vertical drilling hole 6, the mixture is kept stand for 10min, and the expansion explosive cartridge expands to form a solid hardened whole with the inner steel ring 2, the arc-shaped outer steel plate 4 and the rock mass 7;
and 5: leveling the fixture for the orifice and ensuring that the axis of the fixture coincides with the axis of the vertical bore 6;
step 6: a ruler reading device of the drilling and shooting measurement device is placed on the upper surface of the inner steel ring of the fixing device, and the ruler reading device is fixed through the matching of a bolt and a threaded hole in the inner steel ring 2, so that the ruler reading device can be detached after an experiment and is convenient to use, and meanwhile, a drilling and shooting depth encoder is arranged on the upper surface of the inner steel ring 2, so that data testing can be stably carried out;
and 7: performing drilling camera measurement, connecting a drilling camera probe with a signal line, connecting the signal line and a depth encoder with a drilling camera host, and performing vertical hole drilling camera test;
and 8: after the test is finished, 2Kg of water is sprayed on the expansion cartridge 3 of the fixing device, and after standing for 10min, the fixing device is dismantled and recycled.
Claims (4)
1. The utility model provides a be used for drilling camera hole mouth fixing device, its characterized in that, including bearing tray, interior steel ring, the outer steel sheet of arc and wire net, bearing the tray and setting up on the rock mass ground surface, it has vertical drilling to bore on the rock mass, and the internal diameter of vertical drilling is greater than the setting of drilling camera diameter, the arc surface that bears the tray is provided with the outer steel sheet of arc, and the outer steel sheet inboard of arc is provided with interior steel ring, and interior steel ring bottom is connected through the wire net with the outer steel sheet bottom of arc, be provided with the inflation cartridge between the outer steel sheet of interior steel ring and arc.
2. A drill camera aperture fixture according to claim 1 wherein: the radian of the two symmetrically arranged arc-shaped outer steel plates is larger than the radians of the other two symmetrically arranged arc-shaped outer steel plates.
3. A drill camera aperture fixture according to claim 1 wherein: the upper end face of the inner steel ring is provided with a threaded hole.
4. A method of installing a borehole camera aperture fixture according to claim 1 comprising the steps of:
step 1: drilling a vertical drill hole with the depth of 30-50m at the position of a side slope or a stope step of open-pit ore by using a drilling machine;
step 2: cleaning scum at the periphery of the vertical drill hole to ensure that no bulge is formed at the periphery of the vertical drill hole, and placing the fixing device into the vertical drill hole;
and step 3: then placing a proper amount of expansion explosive cartridges between the inner steel ring and the arc-shaped outer steel plate;
and 4, step 4: injecting a certain amount of water into the expansion explosive cartridge along the vertical drilling hole, standing for a period of time, and forming a dense hardened whole by the expansion of the expansion explosive cartridge, the inner steel ring, the arc-shaped outer steel plate and the rock mass;
and 5: leveling the fixture for the bore and ensuring that the measuring device axis coincides with the vertical bore axis;
step 6: a ruler reading device of a measuring drilling camera device is placed on the upper surface of an inner steel ring of the fixing device, the ruler reading device is fixed through the matching of a bolt and a threaded hole in the inner steel ring, and meanwhile, a drilling camera depth encoder is installed on the upper surface of the inner steel ring;
and 7: performing drilling camera measurement, connecting a drilling camera probe with a signal wire, connecting the signal wire and a depth encoder with a drilling camera host, and performing vertical hole drilling camera test;
and 8: and after the test is finished, spraying water on the expansion cartridge of the fixing device, standing for a period of time, dismantling the fixing device, and recycling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911166310.XA CN110821430B (en) | 2019-11-25 | 2019-11-25 | Fixing device for drilling camera hole opening and mounting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911166310.XA CN110821430B (en) | 2019-11-25 | 2019-11-25 | Fixing device for drilling camera hole opening and mounting method |
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| Publication Number | Publication Date |
|---|---|
| CN110821430A true CN110821430A (en) | 2020-02-21 |
| CN110821430B CN110821430B (en) | 2022-07-29 |
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| CN201911166310.XA Active CN110821430B (en) | 2019-11-25 | 2019-11-25 | Fixing device for drilling camera hole opening and mounting method |
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