CN106703795A - Roof rock in the lane grade while drilling detection device and method based on laser distance meter - Google Patents
Roof rock in the lane grade while drilling detection device and method based on laser distance meter Download PDFInfo
- Publication number
- CN106703795A CN106703795A CN201611101971.0A CN201611101971A CN106703795A CN 106703795 A CN106703795 A CN 106703795A CN 201611101971 A CN201611101971 A CN 201611101971A CN 106703795 A CN106703795 A CN 106703795A
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- Prior art keywords
- rock
- drilling
- top board
- pulse type
- mass
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- 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.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B49/003—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 by analysing drilling variables or conditions
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B45/00—Measuring the drilling time or rate of penetration
Abstract
The invention discloses a roof rock in the lane grade while drilling device and method based on laser distance meter; the technical scheme is suitable for the greatly changeable geological conditions of roof rock formation development and rock hardness and belongs to the technical area of the mine tunnel support. The drilling distance of the top hole in fixed interval time 3s is tested using a pulse laser rangefinder and a roof reflector combining with the excavation procedure in the construction of the anchorage support technology the basic quality grade of the roof rock in the anchoring technology, the 'displacement - drilling speed' curve in the borehole is gotten, comprising the curve with the rock mass quality classification standard established and the I-V level of rock drilling rate standard library, the each basic quality degrade of rock body is obtained quantitatively in the drilling hole scope. The device and method are simple, the real-time and continuous while drill detection is realized in the construction process of the lane, particularly in the condition of the greatly changeable roof rock hardness in the lane.
Description
Technical field
Device and method is surveyed with probing the present invention relates to a kind of back rock-mass quality grade based on laser range finder,
It is particularly suited for gathering the larger geological information of mine roof strata structure development, firmness change and uses, belongs to mine working branch
The technical field of shield.
Background technology
In tunneling construction, local roof rock mass gross grade is varied widely in tunnel, and quality is high, good stability
Rock mass, it is not necessary to or only need to little its support reinforcement measure, it is possible to ensure engineering construction and the safety for using；Quality
Difference, the bad rock mass of stability, usually can be to the construction of engineering and using bringing many potential safety hazards, or even can be in tunnel
Construct and occur top board disaster during, it is necessary to the peace for taking complicated its support reinforcement measure to ensure roadway construction and use
Entirely.Therefore, in roadway support tunneling process, the judgement of rock mass basic quality's grade is carried out accurately and in time, for ensureing
Back stabilization and safety tool are of great significance.
Decision method research at present to back rock mass basic quality grade is less, according to GB《Engineering rock mass
Grade scale》, basic skills is to use geology rock core drill, and back rock mass is cored, and rock mass is calculated in laboratory
Gross index BQ values, rock mass basic quality's classification is carried out to roof rock mass according to BQ values, but this method time-consuming, take
With height, the build of geological drilling rig is also larger, is not suitable for being used in driving face.Therefore needing proposition one kind badly can be applied to coal
Ore deposit tunnel working environment, quick, the accurate method for judging roof rock mass gross grade.
The content of the invention
Technical problem：It is easy to use for above-mentioned technical problem, there is provided a kind of simple structure, solve driving face top
Plate part variation of lithological causes the improper problem of supporting, and by the gross grade of the quick rock mass for judging local top board, and
When adjust support pattern and supporting parameter, realize the back rock mass based on laser range finder of digging laneway safely and fast
Credit rating surveys device and method with probing.
Technical scheme：To realize above-mentioned technical problem, the back rock-mass quality based on laser range finder of the invention
Grade with boring detection device, including pulse type laser rangefinder, top board reflector, fastener and monomer jumbolter；Its
Middle monomer jumbolter is vertically set on roadway floor, and anchor pole is vertically pierced into back, pulse type laser rangefinder
Back is arranged on monomer jumbolter and pointed to using fastener, and top board reflector is arranged on back and pulse
The corresponding position of formula laser range finder.
Described pulse type laser rangefinder fixed time intervals, the distance between measurement and top board reflector, so as to obtain
The distance of monomer jumbolter drilling and carry out record storage in unit fixed interval, set on pulse type laser rangefinder
There is communication interface, be easy to be connected with computer, " displacement-drilling speed " curve is quickly generated using computer.
The structure of described top board reflector is the infundibulate stood upside down, and the top of reflector is enclosed construction, small hole at bottom part
A diameter of 45mm, top board reflector is fixed on top board using the expansion bolt of M6 × 55.
The side of described fastener is fastened with flange type of attachment, and the other end is provided with to be surveyed for placing pulse type laser
The holder of distance meter, is the funnel structure for standing upside down at the top of box, and the orifice diameter of funnel structure bottom is 2mm.
A kind of back rock-mass quality grade based on laser range finder with bore detection method, comprise the following steps：
A. the drilling speed java standard library that the rock-mass quality grade of the ore deposit is for I~V grades is set up：In the ore deposit is with heading, on top
Plate choose sampled point, drilled through in the range of sampled point 20m different layers position rock and according to《Coal is determined with physical-mechanical properties of rock
Method》Combined machining obtains the rock mass sample that credit rating is I~V grades, using mine jumbolter and drill bit into standard specimen
Rock mass sample to I~V grades carries out drilling experiment, respectively obtains the rock mass drilling speed java standard library that rock-mass quality grade is I~V grades；
B., pulse type laser rangefinder is installed to the waist of monomer jumbolter using fastener, by monomer anchor
Bar drill machine is arranged at armature boring, and the position that drills as needed and the light path of laser range finder, on back with
Top board reflector is installed in pulse type laser rangefinder corresponding position, makes the laser that pulse type laser rangefinder is launched right through top board
The aperture of reflector bottom, completes the device to hole operation of pulse type laser rangefinder and top board reflector；
C. monomer jumbolter is started, in monomer jumbolter drilling process, using pulse type laser rangefinder by solid
Fixed interval time records the drilling distance of monomer jumbolter drilling rod, extension arm, drilling as needed in drilling process
Apart from the length of the extension arm that adds up in order；
D. the rod boring range data and the rock mass sample mass rank of the ore deposit for being obtained according to pulse type laser rangefinder
Rock mass drilling speed java standard library for I~V grades is analyzed, so as to determine the top drawn on back in the range of testing bore holes
Plate rock mass basic quality grade.
The unit fixed interval of the drilling distance of the record monomer jumbolter drilling rod is 3s, 4s or 5s.
Beneficial effect
This method is directed to roof rock mass gross grade, with reference to the operation of punchinging in the construction of anchoring support technology, uses
Pulse type laser rangefinder and top board reflector measure the drilling distance of fixed interval inside ceiling panel drilling, and realization is applied in top board
The detection of roof strata gross grade I~V grades is completed during work anchor pole or anchor cable, drilled in " displacement-brill
Speed " curve, the rock-mass quality classification standard that the curve and the ore deposit have been set up：It is right that I~V grade of rock mass drilling speed java standard library is carried out
Than analysis, the gross grade for drawing each rock mass in the range of drilling can be quantified, according to local rock formation in back
The change of gross grade adjusts the parameter of anchoring support in time, prevents in work progress because the rock stratum base of local top board
This credit rating is not clear and cause the not enough situation of supporting efficiency, stability of the roadway is ensured to greatest extent, reduce the hair of roof fall accident
It is raw, for the safe and efficient speedy drivage realized under complex geological condition provides supporting condition；The method equipment is simple, operation side
Just, can realize it is real-time to top board during roadway construction, continuous surveyed with probing, be particularly suited for back rock stratum hard
The condition that degree is changed greatly.
Brief description of the drawings
Fig. 1 is plane arrangement structure schematic diagram of the invention；
Fig. 2 is the schematic diagram of top board reflector of the invention；
Fig. 3 drilling displacement of the invention-drilling speed curve map.
In figure：1- pulse type laser rangefinders；2- top board reflectors；3- fasteners；4- hydraulic jumbolters；
5- backs；6- roadway floors.
Specific embodiment
An embodiment of the invention is further described below in conjunction with the accompanying drawings：
As shown in figure 1, the back rock-mass quality grade based on laser range finder of the invention with bore detection device,
Including pulse type laser rangefinder 1, top board reflector 2, fastener 3 and monomer jumbolter 4；Wherein monomer jumbolter 4
It is vertically set on roadway floor 6, and anchor pole is vertically pierced back 5, pulse type laser rangefinder 1 utilizes fastener
3 are arranged on monomer jumbolter 4 and point to back 5, and the side of described fastener 3 is tight with flange type of attachment
Gu, the other end is provided with the holder for placing pulse type laser rangefinder 1, is the funnel structure for standing upside down, leakage at the top of box
The orifice diameter of bucket structure bottom is 2mm；It is corresponding with pulse type laser rangefinder 1 that top board reflector 2 is arranged on back 5
Position, as shown in Fig. 2 the structure of described top board reflector 2 is the infundibulate stood upside down, the top of reflector is tied for closing
Structure, a diameter of 45mm of small hole at bottom part, top board reflector is fixed on top board using the expansion bolt of M6 × 55, described pulse
The fixed time intervals of formula laser range finder 1, the distance between measurement and top board reflector 2, so that when obtaining unit fixed intervals
The distance of the interior drilling of monomer jumbolter 4 simultaneously carries out record storage, and pulse type laser rangefinder 1 is provided with communication interface, just
It is connected in computer, " displacement-drilling speed " curve is quickly generated using computer.
After the rock-mass quality grade in the mine is set up for I~V grades of rock mass drilling speed java standard library, it can be deduced that jumbolter exists
Every kind of rock mass creeps into velocity interval value interiorly.In actual measurement can according to pulse type laser rangefinder every the 3s times record drilling away from
From, average rate of penetration of the jumbolter within the 3s times is drawn, contrasted by with java standard library, it is known that jumbolter creeps into
Roof rock mass credit rating in 3s distance ranges." displacement-drilling speed " figure of the whole drilling of generation, can more intuitively sentence
Break and the grade of the rock-mass quality every the top board in 3s drilling distances.As shown in figure 3, the drilling in first 3s time of rig
Distance is 0.2m, and average speed is a, according to rock mass drilling speed java standard library, it can be deduced that rock-mass quality in the range of drilling 0.2m etc.
Level, cyclic process can draw the rock-mass quality grade of drilling scope inside ceiling panel.
A kind of back rock-mass quality grade based on laser range finder with bore detection method, comprise the following steps：
A. the drilling speed java standard library that the rock-mass quality grade of the ore deposit is for I~V grades is set up：In the ore deposit is with heading, on top
Plate choose sampled point, drilled through in the range of sampled point 20m different layers position rock and according to《Coal is determined with physical-mechanical properties of rock
Method》Combined machining obtains the rock mass sample that credit rating is I~V grades, using mine jumbolter and drill bit into standard specimen
Rock mass sample to I~V grades carries out drilling experiment, respectively obtains the rock mass drilling speed java standard library that rock-mass quality grade is I~V grades；
B., pulse type laser rangefinder 1 is installed to the waist of monomer jumbolter 4 using fastener 3, will be single
Body jumbolter 4 is arranged at armature boring, and the position that drills as needed and the light path of laser range finder, in back
Top board reflector 2 is installed with the corresponding position of pulse type laser rangefinder 1 on 5, makes the laser that pulse type laser rangefinder 1 is launched just
Through the aperture of the bottom of top board reflector 2, the device to hole operation of pulse type laser rangefinder 1 and top board reflector 2 is completed；
C. start monomer jumbolter 4, in the drilling process of monomer jumbolter 4, pressed using pulse type laser rangefinder 1
The drilling distance of the fixed drilling rod of interval time record monomer jumbolter 4, the drilling of the drilling rod of record monomer jumbolter 4
The unit fixed interval of distance is 3s, 4s or 5s；The extension arm as needed in drilling process, drilling distance is in due order
The length of the cumulative extension arm of sequence；
D. the rod boring range data and the rock mass sample mass rank of the ore deposit for being obtained according to pulse type laser rangefinder 1
Rock mass drilling speed java standard library for I~V grades is analyzed, so as to determine to draw on back 5 in the range of testing bore holes
Roof rock mass gross grade.
Claims (6)
1. a kind of back rock-mass quality grade based on laser range finder with bore detection device, it is characterised in that：It is wrapped
Include pulse type laser rangefinder (1), top board reflector (2), fastener (3) and monomer jumbolter (4)；Wherein monomer anchor pole
Rig (4) is vertically set on roadway floor (6), and anchor pole is vertically pierced back (5), pulse type laser rangefinder
(1) it is arranged on monomer jumbolter (4) and points to back (5) using fastener (3), top board reflector (2) is set
In back (5) position corresponding with pulse type laser rangefinder (1).
2. according to claim 1 based on laser range finder back rock-mass quality grade with bore detection device, its
It is characterised by：Described pulse type laser rangefinder (1) fixed time intervals, the distance between measurement and top board reflector (2),
So as to obtain the distance of the drilling of monomer jumbolter (4) in unit fixed interval and carry out record storage, pulse type laser
Rangefinder (1) is provided with communication interface, is easy to be connected with computer, and " displacement-drilling speed " curve is quickly generated using computer.
3. according to claim 1 based on laser range finder back rock-mass quality grade with bore detection device, its
Spy is characterised by：The structure of described top board reflector (2) is the infundibulate stood upside down, and the top of reflector is enclosed construction, bottom
A diameter of 45mm of portion's aperture, top board reflector is fixed on top board using the expansion bolt of M6 × 55.
4. according to claim 1 based on laser range finder back rock-mass quality grade with bore detection device, its
Spy is characterised by：The side of described fastener (3) is fastened with flange type of attachment, and the other end is provided with for placing pulsed
The holder of laser range finder (1), is the funnel structure for standing upside down at the top of box, and the orifice diameter of funnel structure bottom is 2mm.
5. a kind of back rock-mass quality grade based on laser range finder of 1 described device of usage right requirement with probing
Survey method, it is characterised in that comprise the following steps：
A. the drilling speed java standard library that the rock-mass quality grade of the ore deposit is for I~V grades is set up：In the ore deposit is with heading, in top board choosing
Take sampled point, drilled through in the range of sampled point 20m different layers position rock and according to《Coal and physical-mechanical properties of rock measure side
Method》Combined machining obtains the rock mass sample that credit rating is I~V grades, using mine jumbolter and drill bit pair into standard specimen
I~V grades of rock mass sample carries out drilling experiment, respectively obtains the rock mass drilling speed java standard library that rock-mass quality grade is I~V grades；
B., pulse type laser rangefinder (1) is installed to the waist of monomer jumbolter (4) using fastener (3), will
Monomer jumbolter (4) is arranged at armature boring, and the position that drills as needed and the light path of laser range finder, in tunnel
Top board reflector (2) is installed with pulse type laser rangefinder (1) corresponding position on top board (5), pulse type laser rangefinder (1) is sent out
The laser penetrated completes pulse type laser rangefinder (1) and top board reflector right through the aperture of top board reflector (2) bottom
(2) device to hole operation；
C. start monomer jumbolter (4), in monomer jumbolter (4) drilling process, use pulse type laser rangefinder (1)
The drilling distance of monomer jumbolter (4) drilling rod is recorded by fixed interval time, is lengthened as needed in drilling process and bored
Bar, length of the drilling apart from the extension arm that adds up in order；
D. the rod boring range data according to pulse type laser rangefinder (1) acquisition is with the rock mass sample mass rank of the ore deposit
I~V grades of rock mass drilling speed java standard library is analyzed, so as to determine to draw on back (5) in the range of testing bore holes
Roof rock mass gross grade.
6. according to claim 5 based on laser range finder back rock-mass quality grade with bore detection device, its
Spy is characterised by：It is described record monomer jumbolter (4) drilling rod drilling distance unit fixed interval be 3s, 4s or
5s。
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611101971.0A CN106703795A (en) | 2016-12-05 | 2016-12-05 | Roof rock in the lane grade while drilling detection device and method based on laser distance meter |
| PCT/CN2017/091609 WO2018103324A1 (en) | 2016-12-05 | 2017-07-04 | Laser rangefinder-based measurement while drilling device and method for determining rock mass grade of tunnel roof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611101971.0A CN106703795A (en) | 2016-12-05 | 2016-12-05 | Roof rock in the lane grade while drilling detection device and method based on laser distance meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106703795A true CN106703795A (en) | 2017-05-24 |
Family
ID=58935687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611101971.0A Pending CN106703795A (en) | 2016-12-05 | 2016-12-05 | Roof rock in the lane grade while drilling detection device and method based on laser distance meter |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106703795A (en) |
| WO (1) | WO2018103324A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107575160A (en) * | 2017-09-28 | 2018-01-12 | 河南理工大学 | Rock stratum information intelligent bores survey machine |
| WO2018103324A1 (en) * | 2016-12-05 | 2018-06-14 | 中国矿业大学 | Laser rangefinder-based measurement while drilling device and method for determining rock mass grade of tunnel roof |
| CN108286459A (en) * | 2018-01-16 | 2018-07-17 | 山东科技大学 | Back potentially danger rock stratum method of determining range |
| CN110486007A (en) * | 2019-08-29 | 2019-11-22 | 武汉长盛煤安科技有限公司 | Coal mine is with brill rock reaction force in-situ testing device and method |
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| CN109086502B (en) * | 2018-07-20 | 2022-11-11 | 西安理工大学 | Rock mass mechanical parameter rapid determination method based on rotary cutting penetration sounding technology |
| CN109086503B (en) * | 2018-07-20 | 2022-09-30 | 西安理工大学 | Rock mass rapid grading method based on rotary cutting penetration sounding technology |
| CN111396039B (en) * | 2020-05-13 | 2023-06-06 | 天地科技股份有限公司 | Coal mine tunnel roof lithology drilling judgment device and judgment method |
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| Publication number | Publication date |
|---|---|
| WO2018103324A1 (en) | 2018-06-14 |
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Application publication date: 20170524 |