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CN103439204A - Rock hardness measuring method and measuring apparatus - Google Patents

Rock hardness measuring method and measuring apparatus Download PDF

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Publication number
CN103439204A
CN103439204A CN2013103851487A CN201310385148A CN103439204A CN 103439204 A CN103439204 A CN 103439204A CN 2013103851487 A CN2013103851487 A CN 2013103851487A CN 201310385148 A CN201310385148 A CN 201310385148A CN 103439204 A CN103439204 A CN 103439204A
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hardness
rock
electric drill
bracket
drill
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CN103439204B (en
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王昌益
孙洁
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Abstract

The invention relates to a rock hardness measuring method and a measuring apparatus, belonging to the technical field of rock and soil mechanics basic theory and application. The rock hardness measuring method is used for solving the defect that the precision for people to measure the rock hardness is poor, and comprises the steps of: by virtue of a relationship among equal penetrating power, penetrating time and penetrating action quantity, obtaining a novel rock hardness formula as follows: A=F Delta t, A1=F Delta (t1). The measuring apparatus corresponding to the rock hardness measuring method comprises a bracket, wherein a tray with a drill hole is arranged on the bottom of the bracket; an electric drill is arranged inside the bracket; the electric drill is arranged on the bracket by a coupling shaft; a drill bit is arranged on the electric drill by a spring; an electronic meter is arranged on the electric drill; the electric drill and the electronic meter are controlled by a switch button arranged on the drill bit. According to the invention, a problem that the existing rock mineral hardness measurement is rough is solved on the basis that interaction about action is a quantitative theory of a phenomenon, thereby having important significance in developing and perfecting basic theory science, basic theory application science and geotechnical engineering science.

Description

Rock hardness determination method and determination instrument
Technical Field
The invention relates to a rock hardness measuring method and a measuring instrument, belonging to the technical field of rock-soil mechanics basic theory and application.
Background
The problem of the method for measuring the hardness of the mineral rock is one of the most basic problems in rock mechanics and mineralogy, and whether the relation between the hardness of the mineral rock and the detection effect can be correctly known is the key for determining whether the scientific method for detecting, analyzing and calculating the hardness of the mineral rock can be correctly mastered.
Hardness is not only used to measure mechanical properties of minerals, but is also commonly used to measure hardness properties of rock and industrial materials. Hardness is a property that reflects the ability of a material to resist the action of pressure, abrasion and the like, and is a characteristic that reflects the law of the relationship between the action quantity borne by the material and the deformation quantity generated under the action of the material.
At present, the methods adopted by people for researching the hardness of minerals and rocks have certain defects. Such as the mohs method (mohs hardness meter), the range of hardness of minerals and rocks is roughly determined by scoring the mineral to be measured with minerals of known hardness (such as talc, gypsum, calcite, fluorite, apatite, orthoclase, quartz, topaz, corundum, diamond). That is, the surface of the mineral to be scored was observed for the presence of a notch, and if there was a notch, the hardness of the sample to be scored was higher than that of the mineral having a known hardness (durometer). For example, if a mineral is capable of being carved by quartz but not feldspar, the hardness of the mineral must be between 6 and 7, and the hardness of the mineral can be approximately 6.5. The hardness detection, analysis and calculation method has the advantages of generality and inaccuracy.
In general, most minerals, rocks are unstable, the same, but taken from different crustal locations, and their hardness will vary due to the effects they experience and the history of weathering. For example, rock formations of the same mineral composition have variable hardness from the surface to a certain depth, and the surface with strong weathering has low hardness and the deep with low weathering has high hardness. Only a portion of the minerals are less affected by the degree of efflorescence. That is, the hardness of mineral rocks is uncertain, the method and apparatus for measuring hardness should have accuracy, various hardness changes should be measured, and small differences in hardness should be measured, that is, differences in hardness between ten kinds of mineral hardness, i.e., talc, gypsum, calcite, fluorite, apatite, orthoclase, quartz, topaz, corundum, and diamond, should be accurately measured. However, the conventional method and apparatus for measuring the hardness of mineral rocks are difficult to achieve. In addition, the hardness is a mechanical property of rock minerals, and the measuring method of the hardness is unified with the measuring method of the rock mechanical property, but the unified rule can not be reflected by the traditional hardness measuring and measuring method. This deficiency greatly reduces the practical range of applications for the hardness parameter.
Disclosure of Invention
The invention provides a rock hardness measuring method and a measuring instrument aiming at the defect that the accuracy of rock hardness measurement is poor.
The technical scheme for solving the technical problems is as follows:
a rock hardness measuring method features that the relation between equal penetrating power, penetrating time and penetrating action is used to obtain the hardness of rock
Figure BDA00003741805600021
A ═ F Δ t, a1=FΔt1(ii) a Wherein,
t represents the relative hardness of the mineral with the standard hardness of the same thickness, and is called the hardness of the rock for short;
f represents isopenetrating power;
a represents the penetration amount of the standard hardness minerals with equal thickness;
A1representing the penetration action amount of the rock with the same thickness and hardness to be measured;
Δ t represents the penetration time of the standard hardness minerals of equal thickness;
△t1in the penetration of rocks of uniform thickness and hardness to be measuredAnd (3) removing the solvent.
The rock hardness measuring instrument comprises a support, wherein a tray with a drilled hole is arranged at the bottom of the support; an electric drill is arranged in the bracket and is arranged on the bracket through a coupling, and a drill bit is arranged on the electric drill through a spring; the electric drill is provided with an electronic instrument, and the electric drill and the electronic instrument are controlled by a switch button arranged on the drill bit.
Compared with the prior art, the invention has the beneficial effects that: based on the quantitative theory that the action is a phenomenon in the action science, the method solves the problem of rough measurement of the hardness of the existing rock mineral, and has important significance for the development and the perfection of basic theory science, basic theory application science and geotechnical engineering science.
On the basis of the technical scheme, the invention can be further improved as follows.
Furthermore, the electric drill is arranged on the bracket through a lifting rod and a supporting frame; and the bottom of the tray is provided with a support leg.
The beneficial effect of adopting the further scheme is that: the height of the electric drill is adjusted in a micro-scale mode by adjusting the lifting rod; due to the arrangement of the supporting legs, the supporting legs do not need to be supported by other structures when in use, and the use is more convenient.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a sectional view taken along line A-A of FIG. 1;
fig. 3 is a schematic structural diagram of the tray of the present invention.
In the figure, 1, a coupling; 2. an electric drill; 3. a support frame; 4. a lifting rod; 5. an electronic instrument; 6. a spring; 7. a switch button; 8. a drill bit; 9. a support leg; 10. a tray; 11. drilling; 12. and (4) a bracket.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
A rock hardness measuring method features that the relation between equal penetrating power, penetrating time and penetrating action is used to obtain the hardness of rock
Figure BDA00003741805600031
A ═ F Δ t, a1=FΔt1(ii) a Wherein,
t represents the relative hardness of the mineral with the standard hardness of the same thickness, and is called the hardness of the rock for short;
f represents isopenetrating power;
a represents the penetration amount of the standard hardness minerals with equal thickness;
A1representing the penetration action amount of the rock with the same thickness and hardness to be measured;
Δ t represents the penetration time of the standard hardness minerals of equal thickness;
△t1the penetration time of a rock of equal thickness of hardness to be measured is indicated.
The rock hardness measuring instrument comprises a support 12, wherein a tray 10 with a drill hole 11 is arranged at the bottom of the support 12, and supporting legs 9 are arranged at the bottom of the tray 10; an electric drill 2 is arranged in the support 12, the electric drill 2 is mounted on the support 12 through a coupling 1, and a drill bit 8 is arranged on the electric drill 2 through a spring 6; the electric drill 2 is provided with an electronic instrument 5, and the electric drill 2 and the electronic instrument 5 are controlled by a switch button 7 arranged on a drill bit 8.
When the electric drill 2 is manufactured, the electric drill is arranged on the bracket 12 through the lifting rod 4 and the support frame 3.
When the method and the instrument are used, corundum is taken as a standard reference object, and the Mohs hardness is measuredIn the column, the hardness of corundum is noted as 9, whereas in the present invention, the hardness of corundum is noted as 0.9. The revolution is fixed, the revolution does not need to be too large, and 1200 revolutions per minute can be achieved; the diameter of the drill bit 8 is 4 mm; an electronic instrument 5 for timing is arranged on the electric drill 2 and is provided with a switch button 7 for simultaneously starting and closing the electric drill 2 and the timing instrument 5, namely, the electric drill 2 starts to work, and the timing instrument 5 starts to run; when the electric drill 2 stops drilling, the timing instrument 5 stops running immediately; the drilling holes 11 on the tray 10 are arranged to control the drill bit 8 to freely extend and retract within a certain range. The rock slice of measured hardness is placed in the borehole 11 of the tray 10 below the drill bit 8. When the drill bit 8 works, the drill bit 8 is compressed and retracted, so that the switch button 7 is pushed to start the electric drill 2 and the timing instrument 5 to run, when a rock slice is penetrated, the retraction pressure is suddenly reduced, the drill bit 8 is pushed by the pressure of the spring 6 to immediately extend forwards, the switch button 7 is closed, and the timing instrument 5 stops working immediately. This makes it possible to easily read the start and end times of the effective operation of the drill 2. In the measurement of hardness, the rock to be measured is ground into a slice of a certain standard thickness, and then the slice is drilled through by the electric drill 2 to obtain the starting time t of the running of the timing instrument 510And shutdown time t1tAnd further obtains the time deltat for the operation of the electric drill 21=t1t-t10The hardness of the rock mineral species represented by the lamella is then calculated according to the following formula:
T = Δt 1 Δt .
wherein, Deltat represents the equal-thickness drilling-through time of the standard hardness rock mineral. In order to determine the value of equal-thickness drilling-through time delta t of standard hardness rock mineral, corundum is selected as a test object, the corundum is ground into a standard-thickness sheet, and the drilling-through time delta t of the standard-thickness sheet is measured1Then according toTo calculate the value of the equal thickness drilling-through time Deltat for obtaining the standard hardness rock mineral, namely
Δt = Δt 1 T = Δt 1 0.9 .
With the value of delta t, the hardness of any rock mineral can be measured by using the hardness measuring method, the hardness measuring instrument and the hardness measuring formula. I.e. the hardness of any material is
Figure BDA00003741805600053
Obviously, corundum is defined as a standard hardness mineral, and other hardnesses are relative to corundum.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (4)

1. A rock hardness measuring method is characterized in that: the new formula of the hardness of the rock is obtained by the relationship among equal penetrating power, penetrating time and penetrating action amount
Figure FDA00003741805500011
A ═ F Δ t, a1=FΔt1(ii) a Wherein,
t represents the relative hardness of the mineral with the standard hardness of the same thickness, and is called the hardness of the rock for short;
f represents isopenetrating power;
a represents the penetration amount of the standard hardness minerals with equal thickness;
A1representing the penetration action amount of the rock with the same thickness and hardness to be measured;
Δ t represents the penetration time of the standard hardness minerals of equal thickness;
△t1the penetration time of a rock of equal thickness of hardness to be measured is indicated.
2. A rock hardness measuring instrument, characterized in that: comprises a bracket (12), wherein the bottom of the bracket (12) is provided with a tray (10) with a drilling hole (11); an electric drill (2) is arranged in the support (12), the electric drill (2) is mounted on the support (12) through a coupling (1), and a drill bit (8) is arranged on the electric drill (2) through a spring (6); the electric drill is characterized in that an electronic instrument (5) is arranged on the electric drill (2), and the electric drill (2) and the electronic instrument (5) are controlled by a switch button (7) arranged on the drill bit (8).
3. The rock hardness measuring instrument according to claim 2, wherein: the electric drill (2) is arranged on the bracket (12) through the lifting rod (4) and the support frame (3).
4. A rock hardness measuring instrument according to claim 2 or 3, wherein: the bottom of the tray (10) is provided with a support leg (9).
CN201310385148.7A 2013-08-29 2013-08-29 A kind of formation hardness assay method and determining instrument Expired - Fee Related CN103439204B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106501110A (en) * 2016-12-05 2017-03-15 杨娇仔 A kind of rare earth ore rigidity detection device
CN108387469A (en) * 2018-02-27 2018-08-10 兰州理工大学 A kind of ground sample hardness tester
CN119715213A (en) * 2024-12-09 2025-03-28 华润水泥技术研发(广西)有限公司 Method for detecting hardness and strength of interior of aerated concrete blank body and speed insert rod for detection

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09126978A (en) * 1995-11-01 1997-05-16 Ohbayashi Corp Miniature drill testing method
CN101949259A (en) * 2010-10-15 2011-01-19 肖双喜 Multifunctional shale electric drill
CN202305355U (en) * 2011-10-31 2012-07-04 中国石油化工股份有限公司 Rock abrasiveness testing device
CN202735174U (en) * 2012-07-02 2013-02-13 中国石油集团西部钻探工程有限公司 Efficient shale hardness testing instrument
CN202861446U (en) * 2012-05-21 2013-04-10 浙江师范大学 Full-automatic drill lathe

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09126978A (en) * 1995-11-01 1997-05-16 Ohbayashi Corp Miniature drill testing method
CN101949259A (en) * 2010-10-15 2011-01-19 肖双喜 Multifunctional shale electric drill
CN202305355U (en) * 2011-10-31 2012-07-04 中国石油化工股份有限公司 Rock abrasiveness testing device
CN202861446U (en) * 2012-05-21 2013-04-10 浙江师范大学 Full-automatic drill lathe
CN202735174U (en) * 2012-07-02 2013-02-13 中国石油集团西部钻探工程有限公司 Efficient shale hardness testing instrument

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106501110A (en) * 2016-12-05 2017-03-15 杨娇仔 A kind of rare earth ore rigidity detection device
CN106501110B (en) * 2016-12-05 2018-12-04 张育栋 A kind of rare earth ore rigidity detection device
CN108387469A (en) * 2018-02-27 2018-08-10 兰州理工大学 A kind of ground sample hardness tester
CN119715213A (en) * 2024-12-09 2025-03-28 华润水泥技术研发(广西)有限公司 Method for detecting hardness and strength of interior of aerated concrete blank body and speed insert rod for detection

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