CN105937402A - Anchor bolt supporting system with self-drilling type recognizable loose surrounding rock drill bit - Google Patents
Anchor bolt supporting system with self-drilling type recognizable loose surrounding rock drill bit Download PDFInfo
- Publication number
- CN105937402A CN105937402A CN201610271842.XA CN201610271842A CN105937402A CN 105937402 A CN105937402 A CN 105937402A CN 201610271842 A CN201610271842 A CN 201610271842A CN 105937402 A CN105937402 A CN 105937402A
- Authority
- CN
- China
- Prior art keywords
- drill bit
- signal
- anchor bolt
- signal receiving
- sender unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 32
- 239000011435 rock Substances 0.000 title claims abstract description 29
- 238000004873 anchoring Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 230000001788 irregular Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/003—Machines for drilling anchor holes and setting anchor bolts
-
- 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
- E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
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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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Structural Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The present invention discloses an anchor bolt supporting system with a self-drilling type recognizable loose surrounding rock drill bit, and is characterized in that the anchor bolt supporting system comprises a pdc drill bit, a gasket with a stress sensor, a drill pipe, an acoustic signal receiving device, a signal transmitting device, a signal receiving and processing device, a positioner, a connector, an anchor bolt, an anchor bolt pallet and a fastening nut; the pdc drill bit, the gasket with the stress sensor, the drill pipe, the connector, the anchor bolt, the anchor bolt pallet and the fastening nut are successively connected and fixed; the drill pipe is provided with the acoustic signal receiving device and the signal transmitting device; the stress sensor and the acoustic signal receiving device are respectively connected with the signal transmitting device; and the signal transmitting device transmits signals acquired by the stress sensor and the acoustic signal receiving device to the signal receiving and processing device. The surrounding rock loose circle can be automatically recognized, a lot of anchor bolt materials can be saved, and the good anchoring effect can be achieved.
Description
Technical field
The present invention relates to underground engineering suspension roof support field, particularly relate to a kind of band self-drilling type and can recognize that the Bolt System of loosening country rock drill bit.
Background technology
Destroying stress of primary rock poised state after underworkings excavation, thus tunnel-surrounding radial stress can be caused to drop to zero, Surrounding Rock Strength is decreased obviously, and stress concentration phenomenon occurs.After this concentrated stress exceedes Surrounding Rock Strength, the crushed zone formed at tunnel-surrounding country rock is wall rock loosening ring.Its physical state shows as the increase of Rockmass fractures and the reduction of stress level thereof.Thus in current Bolt System, after generally requiring the scope of the relaxation zone understanding country rock, just can carry out the design of reasonable supporting parameter.
Wall rock loosening ring is generally of certain shape, and when country rock is isotropic, vertical stress is equal with horizontal stress is then circular, is otherwise oval；When the non-same sex of country rock, relaxation zone is irregular.Along with roadway excavation is carried out to deep, mechanical character of surrounding rock often shows as nonlinear, and this also has led to the appearance of the various relaxation zone shapes such as butterfly.In anchor rod anchored theory, effective anchoring of anchor pole to be realized, it is necessary for making anchor pole anchor head be anchored in the rock stratum beyond relaxation zone, to reach the purpose of safety support.Due to relaxation zone shape irregular in the underground engineering of current deep, for saving anchor pole material and for reaching preferable anchoring effect, it usually needs roadway surrounding rock diverse location relaxation zone is measured.
The automatic identification of relaxation zone it is difficulty with at present, it is common that by workman by virtue of experience, determining according to the difficulty of boring sound and inlet hole, the relaxation zone scope sometimes determined is not accurate enough, there is bigger potential safety hazard during rockbolt installation.It addition, accurately identify the mensuration needing to carry out single relaxation zone scope in advance, operation is loaded down with trivial details, wastes time and energy.
Summary of the invention
In order to solve above-mentioned technical problem, the invention provides a kind of band self-drilling type and can recognize that the Bolt System of loosening country rock drill bit.
The present invention solves above-mentioned technical problem and the technical scheme is that a kind of band self-drilling type can recognize that the Bolt System of loosening country rock drill bit, it is characterised in that: include that pdc drill bit, band strain gauge pad, drilling rod, acoustic signals receive device, sender unit, signal reception and processing means, localizer, adapter, anchor pole, anchor rod pallet board and clamp nut；Described pdc drill bit, band strain gauge pad, drilling rod, adapter, anchor pole, anchor rod pallet board and clamp nut are sequentially connected with fixing, described drilling rod is provided with acoustic signals and receives device, sender unit, strain gauge is connected with sender unit respectively with sound wave signal receiving device, and the signal of strain gauge and sound wave signal receiving device collection is sent to signal and receives and processing means by sender unit.
Above-mentioned band self-drilling type can recognize that in the Bolt System of loosening country rock drill bit, and described acoustic signals receives device and is respectively arranged with one in drilling rod both sides, is being provided with anti-rattler about, and acoustic signals is received device and is connected with sender unit by wire.
Above-mentioned band self-drilling type can recognize that in the Bolt System of loosening country rock drill bit, described drilling rod is provided with localizer.
Above-mentioned band self-drilling type can recognize that in the Bolt System of loosening country rock drill bit, described signal receives and processing means includes signal receiving module, signal processing module, memory module, level switch module, display lamp, signal receiving module, memory module and level switch module are connected with signal processing module respectively, the output termination display lamp of level switch module.
The beneficial effects of the present invention is: the present invention installs strain gauge in Bolt System additional and acoustic signals receives device, and stress and the acoustic signals of collection by dispensing device, are sent to signal and receive and processing means, so Bolt System can identify wall rock loosening ring automatically, remove workman from by virtue of experience, relaxation zone scope is determined according to the difficulty of boring sound and inlet hole, cause relaxation zone scope sometimes not accurate enough, the problem that there is bigger potential safety hazard.Further, since current relaxation zone shape irregular in the underground engineering of deep, substantial amounts of anchor pole material can be saved after automatically identifying relaxation zone, reach preferable anchoring effect simultaneously.
Accompanying drawing explanation
Fig. 1 is the knot schematic diagram of the present invention.
Fig. 2 is pdc drill bit side schematic view in the present invention.
Fig. 3 is pdc drill bit schematical top view in the present invention.
Fig. 4 is that in the present invention, acoustic signals receives device sectional drawing (A-A section).
Fig. 5 is localizer profile in the present invention (B-B section).
Fig. 6 is that in the present invention, signal receives and the structure principle chart of processing means.
Specific implementation method
With specific embodiment, the present invention is described in further detail below in conjunction with the accompanying drawings.
As shown in Figure 1, the present invention is from left to right followed successively by pdc drill bit 1, band strain gauge pad (strain gauge) 2, and drilling rod 3, acoustic signals receive device 4, sender unit 7, localizer 8, adapter 9, anchor pole 10, anchor rod pallet board 11 and clamp nut 12；Outer end of the present invention has jumbolter 13 offer to creep into power, and the most also signal receives and processing means 14, and for acoustic signals and the wireless receiving of stress signal, 15 is display lamp.
Described pdc drill bit 1 is threaded connection and is arranged on drilling rod 3, mainly include composite sheet 17 and wing 18, hydrophthalmia 16, wherein hydrophthalmia 16 is used to carry injecting paste material, such as Fig. 2, shown in 3, wherein there is the pad 2 equipped with strain gauge pdc drill bit 1 and drilling rod 3 junction, for collecting the stress of pdc drill bit 1 vertical direction, its information sends sender unit 7 to by wire 6；
As shown in Figure 4, drilling rod 3 receiving device 4 equipped with acoustic signals, described acoustic signals receives device 4 and is respectively arranged with one in drilling rod 3 both sides, is having anti-rattler 5 about, and signal sends sender unit 7 to by wire 6；
Described sender unit 7 is also contained on drilling rod 3, it is positioned at drilling rod 3 interlude, the information that described sender unit 7 receives strain gauge 2 and sound wave signal receiving device 4 transmits, and after signal processing, received and processing means 14 to signal by signal emission module short-distance transmission signal；
As it is shown in figure 5, localizer 8 is arranged on drilling rod 3, it is used for making drilling rod 3 centering；
Described adapter 9 is used for jointed rod 3 and anchor pole 10；
Described anchor pole 10 exposed junction has anchor rod pallet board 11 to be fastened with anchor pole 10 by clamp nut 12；
Described jumbolter 13 is connected with anchor pole 10 exposed junction, drives whole anchor pole 10 to creep into forward, and the operation of described jumbolter 13 is controlled by air motor 19.
Described signal receives and processing means 14 includes signal receiving module, signal analysis module, memory module, level switch module, display lamp, and its structure principle chart is as shown in Figure 6.Described memory module can store stress signal and acoustic signals, it is simple to processed offline and analysis.Described signal receives and processing means 14 receives acoustic signals and the stress signal that sender unit 7 launches, it is transmitted separately to memory module store, and carried out signal processing by signal processing module, when acoustic signals and stress signal all judge that boring is beyond wall rock loosening ring, then judge that current country rock is as stabilizing surrounding rock, and display signal is exported to display lamp 15, now display lamp 15 flashes, and workman closes jumbolter according to concrete condition.
nullThe work process of the present invention is as follows: when this Bolt System works，Jumbolter air leg 20 rises，It is connected with anchor pole 10 exposed junction，Open air motor 19，Boring starts，Now strain gauge 2 collects the stress of pdc drill bit 1 vertical direction，Acoustic signals collection device collects the acoustic signals in boring，It is transferred to sender unit 7 respectively by wire 6，Process through sender unit 7，Send acoustic signals and stress signal to signal by wireless signal transmission to receive and processing means 14，After signal reception and processing means 14 receive the signal of sound wave and stress，First coherent signal is stored，Then the analyzing and processing of signal is carried out，When both of which judges that drill bit enters adjoining rock stability district，Done by display lamp 15 and show，Operator can select stopping to creep into according to on-site actual situations.
Claims (4)
1. a band self-drilling type can recognize that the Bolt System of loosening country rock drill bit, it is characterised in that: include that pdc drill bit, band strain gauge pad, drilling rod, acoustic signals receive device, sender unit, signal receive and processing means, localizer, adapter, anchor pole, anchor rod pallet board and clamp nut；Described pdc drill bit, band strain gauge pad, drilling rod, adapter, anchor pole, anchor rod pallet board and clamp nut are sequentially connected with fixing, described drilling rod is provided with acoustic signals and receives device, sender unit, strain gauge is connected with sender unit respectively with sound wave signal receiving device, and the signal of strain gauge and sound wave signal receiving device collection is sent to signal and receives and processing means by sender unit.
Band self-drilling type the most according to claim 1 can recognize that the Bolt System of loosening country rock drill bit, it is characterized in that: described acoustic signals receives device and is respectively arranged with one in drilling rod both sides, being provided with anti-rattler about, acoustic signals is received device and is connected with sender unit by wire.
Band self-drilling type the most according to claim 1 can recognize that the Bolt System of loosening country rock drill bit, it is characterised in that: described drilling rod is provided with localizer.
Band self-drilling type the most according to claim 1 can recognize that the Bolt System of loosening country rock drill bit, it is characterized in that: described signal receives and processing means includes signal receiving module, signal processing module, memory module, level switch module, display lamp, signal receiving module, memory module and level switch module are connected with signal processing module respectively, the output termination display lamp of level switch module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610271842.XA CN105937402B (en) | 2016-04-28 | 2016-04-28 | A kind of Bolt System with the recognizable loosening country rock drill bit of self-drilling type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610271842.XA CN105937402B (en) | 2016-04-28 | 2016-04-28 | A kind of Bolt System with the recognizable loosening country rock drill bit of self-drilling type |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105937402A true CN105937402A (en) | 2016-09-14 |
| CN105937402B CN105937402B (en) | 2018-11-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610271842.XA Active CN105937402B (en) | 2016-04-28 | 2016-04-28 | A kind of Bolt System with the recognizable loosening country rock drill bit of self-drilling type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105937402B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107227968A (en) * | 2017-07-27 | 2017-10-03 | 贵州大学 | A kind of self-inspection anchor pole and its application method |
| CN108590764A (en) * | 2018-03-26 | 2018-09-28 | 西安科技大学 | Random background encourages the fully mechanized coal face environmental hazard early warning system and method for early warning of anchor pole array sensing |
| AU2017317602B2 (en) * | 2016-12-05 | 2019-08-08 | China University Of Mining And Technology | Sound level meter-based tunnel roof rock Protodyakovnov coefficient detecting-while-drilling apparatus and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013074745A2 (en) * | 2011-11-15 | 2013-05-23 | Saudi Arabian Oil Company | Methods for geosteering a drill bit in real time using drilling acoustic signals |
| CN203584444U (en) * | 2013-12-11 | 2014-05-07 | 广州市泰基工程技术有限公司 | Efficient and simple roofbolter |
| CN203891754U (en) * | 2014-05-23 | 2014-10-22 | 青岛业高建设工程有限公司 | Rear-impact self-propelled anchoring device |
| CN203978417U (en) * | 2014-07-29 | 2014-12-03 | 江苏中矿立兴能源科技有限公司 | A kind of intelligent pneumatic power leg-type vibration anchoring-bolt rig of identifying loosening area of surrounding rocks |
| CN205778950U (en) * | 2016-04-28 | 2016-12-07 | 湖南科技大学 | A kind of band self-drilling type can recognize that the Bolt System of loosening country rock drill bit |
-
2016
- 2016-04-28 CN CN201610271842.XA patent/CN105937402B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013074745A2 (en) * | 2011-11-15 | 2013-05-23 | Saudi Arabian Oil Company | Methods for geosteering a drill bit in real time using drilling acoustic signals |
| CN203584444U (en) * | 2013-12-11 | 2014-05-07 | 广州市泰基工程技术有限公司 | Efficient and simple roofbolter |
| CN203891754U (en) * | 2014-05-23 | 2014-10-22 | 青岛业高建设工程有限公司 | Rear-impact self-propelled anchoring device |
| CN203978417U (en) * | 2014-07-29 | 2014-12-03 | 江苏中矿立兴能源科技有限公司 | A kind of intelligent pneumatic power leg-type vibration anchoring-bolt rig of identifying loosening area of surrounding rocks |
| CN205778950U (en) * | 2016-04-28 | 2016-12-07 | 湖南科技大学 | A kind of band self-drilling type can recognize that the Bolt System of loosening country rock drill bit |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2017317602B2 (en) * | 2016-12-05 | 2019-08-08 | China University Of Mining And Technology | Sound level meter-based tunnel roof rock Protodyakovnov coefficient detecting-while-drilling apparatus and method |
| CN107227968A (en) * | 2017-07-27 | 2017-10-03 | 贵州大学 | A kind of self-inspection anchor pole and its application method |
| CN108590764A (en) * | 2018-03-26 | 2018-09-28 | 西安科技大学 | Random background encourages the fully mechanized coal face environmental hazard early warning system and method for early warning of anchor pole array sensing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105937402B (en) | 2018-11-06 |
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