CN106442125B - Coal and rock breakdown speed simulated determination device and method - Google Patents
Coal and rock breakdown speed simulated determination device and method Download PDFInfo
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- CN106442125B CN106442125B CN201610569283.0A CN201610569283A CN106442125B CN 106442125 B CN106442125 B CN 106442125B CN 201610569283 A CN201610569283 A CN 201610569283A CN 106442125 B CN106442125 B CN 106442125B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/06—Special adaptations of indicating or recording means
- G01N3/066—Special adaptations of indicating or recording means with electrical indicating or recording means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/0617—Electrical or magnetic indicating, recording or sensing means
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- General Health & Medical Sciences (AREA)
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- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
A kind of coal and rock breakdown speed simulated determination device provided by the invention, including cabinet, the bottom of the cabinet are provided with coal and rock material and are pressed into coal and rock；It further include multiple detection units, the detection unit includes induction particle, measure traverse line, transfer wire, power supply, data acquisition module and host computer, the induction particle is fixedly installed on measure traverse line, the measure traverse line is electrically connected with transfer wire and passes through transfer wire and connects to power supply to form closed circuit, current signal on the data collecting module collected transfer wire is simultaneously input to upper host, the induction particle fits in the surface setting of coal and rock, and induction particle and measure traverse line correspond；Can the breakdown speed to coal and rock accurately measured, and will not be effected by environmental factors, guarantee measurement accuracy, to accurately instruct coal production.
Description
Technical field
The present invention relates to coal mine field more particularly to a kind of coal and rock breakdown speed simulated determination device and methods.
Background technique
In underground coal mine roadway digging process, coal and rock primary stress field equilibrium state constantly divides again after being disturbed
Cloth, the crack in corresponding coal and rock is generated in the case where stress field constantly adjusts to be extended, converges, penetrating through, until destroying unstability.
Coal and rock breakdown speed is to study the key parameter of coal petrography failure mechanism and unstable failure development process；It is existing
In technology, the breakdown speed of coal and rock is completed by simulated experiment, still, following defect exists in the prior art: existing
Some means of testing are low for the measurement accuracy of the breakdown speed of coal and rock, and are easy by shadows such as environment, interference signals
It rings, from being unable to accurately instruct coal production.
It, being capable of destruction speed to coal and rock it is, therefore, desirable to provide a kind of new coal and rock breakdown speed simulated determination device
Degree is accurately measured, and will not be effected by environmental factors, and guarantees measurement accuracy, to accurately instruct coal production.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of coal and rock breakdown speed simulated determination device, it can be to coal petrography
The breakdown speed of body is accurately measured, and will not be effected by environmental factors, and guarantees measurement accuracy, to accurately instruct
Coal production.
A kind of coal and rock breakdown speed simulated determination device provided by the invention, including cabinet, the bottom of the cabinet are set
It is equipped with coal and rock material and is pressed into coal and rock；
It further include multiple detection units, the detection unit includes induction particle, measure traverse line, transfer wire, power supply, number
According to acquisition module and host computer, the induction particle is fixedly installed on measure traverse line, the measure traverse line and transfer wire
It is electrically connected and passes through transfer wire and connect to power supply to form closed circuit, the electricity on the data collecting module collected transfer wire
Stream signal is simultaneously input to upper host, and the induction particle fits in the surface setting of coal and rock, incudes particle and measure traverse line
It corresponds.
Further, the measure traverse line be parallel to coal and rock surface setting, and the measure traverse line of each detection unit it
Between be arranged in parallel, and measure traverse line is arranged in straight mode.
Further, the transfer wire is fixed on the inner sidewall of cabinet by fixing piece.
Further, the induction particle is used and is made with coal and rock material.
Further, the bottom of the side side wall of the cabinet is provided with loading hole, the cabinet and is provided with loading hole
The opposite side wall of side wall, which is provided with, breaks through hole.
Correspondingly, the present invention also provides a kind of coal and rock breakdown speed simulated determination methods, comprising:
S1. coal and rock material is placed in cabinet, and coal and rock material is carried out to suppress smooth formation coal and rock, according to
Pressed coal and rock material determines the mounting height of induction particle；
S2., measure traverse line is installed, and measure traverse line is connected to power supply to form closed circuit by transfer wire, will be incuded
Particle is fixedly installed on measure traverse line and incudes particle and is bonded with the upper surface of coal and rock.
S3. the distance between two neighboring induction particle L is measuredi-1, and measure coal and rock material destruction mouth and recently
The distance between induction particle L0；
S4. startup power supply flows through measure traverse line with electric current, and passes through data collecting module collected current signal and defeated
Out；
S5. apply stress into cabinet, when stress condition reaches setting condition, then open the destruction mouth of cabinet, record coal
T at the time of rock mass starts to destroy0And each measure traverse line current signal interrupt at the time of ti-1；
S6. according to formulaThe coal and rock that (i-1)-th induction particle incudes particle to i-th is calculated to break
Bad average speed Vi, wherein i=1,2 ..., n, n are the number for incuding particle.
Further, the induction particle is made of coal and rock material.
Further, the length of measure traverse line extends perpendicularly to wall box, and measure traverse line when measure traverse line is arranged
Keep straight.
Further, the bottom of the side side wall of the cabinet is provided with loading hole, the cabinet and is provided with loading hole
The opposite side wall of side wall, which is provided with, breaks through hole.
Beneficial effects of the present invention: coal and rock breakdown speed simulated determination device and method of the invention, it can be to coal petrography
The breakdown speed of body is accurately measured, and will not be effected by environmental factors, and guarantees measurement accuracy, to accurately instruct
Coal production, and structure is simple, it is easy to operate, it is low in cost.
Detailed description of the invention
The invention will be further described with reference to the accompanying drawings and examples:
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is electrical schematic diagram of the present invention.
Specific embodiment
Fig. 1 is the structural diagram of the present invention, as shown, a kind of coal and rock breakdown speed simulation provided by the invention is surveyed
Determine device, including cabinet 1, the bottom of the cabinet 1 is provided with coal and rock material and is pressed into coal and rock 6；
It further include multiple detection units, the detection unit includes induction particle 5, measure traverse line 7, transfer wire 3, power supply
8, data acquisition module 9 and host computer 10, the induction particle 5 are fixedly installed on measure traverse line 7, the measure traverse line 7
It is electrically connected with transfer wire 3 and connect to form closed circuit with power supply 8 by transfer wire 3, the data acquisition module 9 acquires
Current signal on transfer wire is simultaneously input to upper host 10, wherein data acquisition module is using existing current acquisition electricity
Road or current sensor, the induction particle 5 fit in the surface setting of coal and rock 6, induction particle 5 and measure traverse line 7 one
One is corresponding, that is to say, that an induction particle is arranged on a measure traverse line, to guarantee the accuracy of measurement result, wherein surveying
It measures conducting wire and selects that diameter is small, insulated paint line of easy fracture, and transfer wire can then be selected and be relatively large in diameter and more solid lead
Line facilitates the stability of fixed and electric current transmission；In coal and rock destructive process, coal and rock failure mechanics are propagated on line
When incuding particle, induction particle will be moved under the promotion of air-flow to the destruction mouth of coal and rock, and two lines one of measurement is driven to start shipment
It is dynamic, measure traverse line is broken under the tensile stress of induction particle, so that interruptive current transmits, it, can be right by above structure
The breakdown speed of coal and rock is accurately measured, and will not be effected by environmental factors, and guarantees measurement accuracy, thus accurately
Coal production is instructed, and structure is simple, it is easy to operate, it is low in cost.
In the present embodiment, the measure traverse line 7 is parallel to the surface setting of coal and rock 6, and the measurement of each detection unit
It is arranged in parallel between conducting wire 7, and measure traverse line 7 is arranged in straight mode, and measure traverse line 7 is perpendicular to the side wall of cabinet 1,
By this structure, can guarantee to incude in particle motion process can break measure traverse line in time, so that response speed is improved,
Guarantee the accuracy of final measurement.
In the present embodiment, the transfer wire 3 is fixed on the inner sidewall of cabinet by fixing piece 4, in order to guarantee to transmission
The stability maintenance of conducting wire, it is ensured that measurement experiment is gone on smoothly, and the inner sidewall of cabinet is provided with wire casing, wire casing vertical direction is set
It sets, fixing piece 4 is made of the materials such as rubber, clay, so that transfer wire be firmly fixed.
In the present embodiment, the induction particle 5 with coal and rock material using being made, in this way, can effectively really
It protects coal and rock and incudes the consistency of the physical characteristic of particle, so that the accuracy of measurement is improved, when needs are to induction particle
When distance of dishing out measures, then incuding particle can be made of gypsum, cement or metal block, to prevent induction particle
It destroys and is unable to measure distance of dishing out, distance of dishing out refers to the initial position of induction particle to breaking the stop position after conducting wire
Distance.
In the present embodiment, the bottom of the side side wall of the cabinet is provided with loading hole 12, the cabinet and be provided with plus
The opposite side wall of side wall for carrying hole, which is provided with, breaks through hole 11, wherein loading hole and breaks through hole and is sealed under usually, passes through lid
Plate, sealing plate etc. are sealed, and by loading hole, apply gas into cabinet from loading device, make to keep gas pressure in cabinet
Power is then opened when pressure condition meets experimental condition and breaks through hole, at this point, the destruction mouth that hole is equivalent to coal and rock is broken through, in reality
In the arrangement of border, measure traverse line be provided with loading hole or to break through the side wall in hole parallel；Certainly, in order to guarantee the sealing of cabinet
Property, cabinet is provided with case lid (for the prior art, being not shown in the figure).
Correspondingly, the present invention also provides a kind of coal and rock breakdown speed simulated determination methods, comprising:
S1. coal and rock material is placed in cabinet 1, and coal and rock material is carried out to suppress smooth formation coal and rock 6, root
The mounting height of induction particle is determined according to pressed coal and rock material；
S2., measure traverse line 7 is installed, and measure traverse line 7 is connect to form closed circuit by transfer wire 3 with power supply 8, it will
Induction particle 5 is fixedly installed on measure traverse line 7 and incudes particle to be bonded with the upper surface of coal and rock 6.
S3. the distance between two neighboring induction particle L is measuredi-1, and measure coal and rock material destruction mouth and recently
The distance between induction particle L0；
S4. startup power supply flows through measure traverse line with electric current, and passes through data collecting module collected current signal and defeated
Out；
S5. apply stress into cabinet, when stress condition reaches setting condition, then open the destruction mouth of cabinet, record coal
T at the time of rock mass starts to destroy0And each measure traverse line current signal interrupt at the time of ti-1；
S6. according to formulaThe coal and rock that (i-1)-th induction particle incudes particle to i-th is calculated to break
Bad average speed Vi, wherein i=1,2 ..., n, n are the number for incuding particle；By the above-mentioned means, can be broken to coal and rock
Bad speed is accurately measured, and will not be effected by environmental factors, and guarantees measurement accuracy, to accurately instruct coal mine raw
It produces.
Wherein, during coal and rock material development, it is divided into the following two kinds mode: integral type compacting and layer-stepping pressure
System:
After integral type compacting refers to coal and rock material being put into cabinet, according to the deformed state and survey of coal and rock material
The thickness for measuring desired coal and rock determines the amount for being put into the coal and rock material of cabinet, is then suppressed, then by coal and rock
Upper surface is smooth, then measures conducting wire and incude the arrangement of particle.
Coal and rock material is first put into a part into cabinet by layer-stepping compacting, is then suppressed coal and rock material
Molding, then places into coal and rock material and is suppressed, and due to the molding for the coal and rock first suppressed, suppresses upper layer coal and rock
Shi Buhui impacts the structure of lower layer's coal and rock, to guarantee the accuracy of measurement result.
In the present embodiment, the induction particle is made of coal and rock material, in this way, can effectively ensure coal petrography
The consistency of the physical characteristic of body and induction particle, to improve the accuracy of measurement, when need to induction particle dish out away from
When from measuring, then incuding particle can be made of gypsum, cement or metal block, thus prevent induction particle damage and
It is unable to measure distance of dishing out, distance of dishing out refers to the initial position of induction particle to the distance for breaking the stop position after conducting wire.
In the present embodiment, the length of measure traverse line extends perpendicularly to wall box when measure traverse line is arranged, and measures
Conducting wire keeps straight；In this way, it can guarantee to incude in particle motion process and can break measure traverse line in time, thus
Response speed is improved, guarantees the accuracy of final measurement.
In the present embodiment, the bottom of the side side wall of the cabinet is provided with loading hole 12, the cabinet and be provided with plus
The opposite side wall of the side wall in load hole, which is provided with, breaks through hole 11, wherein breaks through the destruction mouth of the i.e. coal and rock of mouth；Loading hole and break through hole
It is sealed under usually, is sealed by cover board, sealing plate etc., by loading hole, applies gas into cabinet from loading device
Body makes to keep gas pressure in cabinet, when pressure condition meets experimental condition, then opens and breaks through hole, at this point, it is suitable to break through hole
In the destruction mouth of coal and rock, in actual arrangement, measure traverse line be provided with loading hole or to break through the side wall in hole parallel；In case
On the side wall of body, it is additionally provided with wiring hole 13, conducting wire is used for transmission and draws and connect to power supply, certainly, wiring hole can also be set
It sets on the case lid of cabinet.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to compared with
Good embodiment describes the invention in detail, those skilled in the art should understand that, it can be to skill of the invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered at this
In the scope of the claims of invention.
Claims (9)
1. a kind of coal and rock breakdown speed simulated determination device, it is characterised in that: including cabinet, the bottom of the cabinet is provided with
Coal and rock material is simultaneously pressed into coal and rock；
It further include multiple detection units, the detection unit includes incuding particle, measure traverse line, transfer wire, power supply, data to adopt
Collection module and host computer, the induction particle are fixedly installed on measure traverse line, and the measure traverse line is electrically connected with transfer wire
It connects and passes through transfer wire and connect to power supply to form closed circuit, the electric current letter on the data collecting module collected transfer wire
Number and be input to upper host, the induction particle fits in the surface setting of coal and rock, and induction particle and measure traverse line are one by one
It is corresponding.
2. coal and rock breakdown speed simulated determination device according to claim 1, it is characterised in that: the measure traverse line is parallel
It is arranged in the surface of coal and rock, and is arranged in parallel between the measure traverse line of each detection unit, and measure traverse line is with straight side
Formula setting.
3. coal and rock breakdown speed simulated determination device according to claim 1, it is characterised in that: the transfer wire passes through
Fixing piece is fixed on the inner sidewall of cabinet.
4. coal and rock breakdown speed simulated determination device according to claim 1, it is characterised in that: the induction particle uses
Material identical with coal and rock material is made.
5. coal and rock breakdown speed simulated determination device according to claim 1, it is characterised in that: the side side of the cabinet
The bottom of wall is provided with loading hole, and the cabinet side wall opposite with the side wall for being provided with loading hole, which is provided with, breaks through hole.
6. a kind of coal and rock breakdown speed simulated determination method, it is characterised in that: include:
S1. coal and rock material is placed in cabinet, and coal and rock material is carried out to suppress smooth formation coal and rock, according to compacting
Coal and rock material afterwards determines the mounting height of induction particle；
S2., measure traverse line is installed, and measure traverse line is connected to power supply to form closed circuit by transfer wire, particle will be incuded
It is fixedly installed on measure traverse line and incudes particle and be bonded with the upper surface of coal and rock；
S3. the distance between two neighboring induction particle L is measuredi-1, and measure coal and rock material destroys mouth and nearest sense
Answer the distance between particle L0；
S4. startup power supply flows through measure traverse line with electric current, and passes through data collecting module collected current signal and export；
S5. apply stress into cabinet, when stress condition reaches setting condition, then open the destruction mouth of cabinet, record coal and rock
T at the time of starting to destroy0And each measure traverse line current signal interrupt at the time of ti-1；
S6. according to formulaThe coal and rock destruction that (i-1)-th induction particle incudes particle to i-th is calculated to put down
Equal speed Vi, wherein i=1,2 ..., n, n are the number for incuding particle.
7. coal and rock breakdown speed simulated determination method according to claim 6, it is characterised in that: the induction particle is coal
Rock mass materials are made.
8. coal and rock breakdown speed simulated determination method according to claim 6, it is characterised in that: measure traverse line is surveyed when arranging
The length of amount conducting wire extends perpendicularly to wall box, and measure traverse line keeps straight.
9. according to coal and rock breakdown speed simulated determination method described in claim 6-8 any claim, it is characterised in that: institute
The bottom for stating the side side wall of cabinet is provided with loading hole, the cabinet side wall setting opposite with the side wall for being provided with loading hole
Have and breaks through hole.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610569283.0A CN106442125B (en) | 2016-07-19 | 2016-07-19 | Coal and rock breakdown speed simulated determination device and method |
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| CN201610569283.0A CN106442125B (en) | 2016-07-19 | 2016-07-19 | Coal and rock breakdown speed simulated determination device and method |
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| CN106442125A CN106442125A (en) | 2017-02-22 |
| CN106442125B true CN106442125B (en) | 2019-01-29 |
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2016
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| CN2224280Y (en) * | 1995-06-19 | 1996-04-10 | 武汉钢铁(集团)公司 | Long-distance centralized monitoring device for rock breaking |
| JPH1094735A (en) * | 1996-09-25 | 1998-04-14 | Hitachi Zosen Corp | Destruction method |
| CN202230077U (en) * | 2011-04-22 | 2012-05-23 | 西安科技大学 | Simulating test device for coupling function of solid-liquid-gas three-phase medium in coal mine stope |
| CN103278404A (en) * | 2013-05-20 | 2013-09-04 | 洛阳理工学院 | Testing device and method for simulating deep rock mass impact failure |
| CN104613905A (en) * | 2014-12-24 | 2015-05-13 | 山东科技大学 | Displacement monitoring device and use method thereof for three-dimensional similar simulation material simulation test |
| CN105301181A (en) * | 2015-07-08 | 2016-02-03 | 中国石油大学(华东) | Detonation gas rock breaking experimental device and method |
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| CN106442125A (en) | 2017-02-22 |
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