CN108106941A - A kind of the rock testing system and test method of the effect of drive local load - Google Patents
A kind of the rock testing system and test method of the effect of drive local load Download PDFInfo
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- CN108106941A CN108106941A CN201810016367.0A CN201810016367A CN108106941A CN 108106941 A CN108106941 A CN 108106941A CN 201810016367 A CN201810016367 A CN 201810016367A CN 108106941 A CN108106941 A CN 108106941A
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- 239000011435 rock Substances 0.000 title claims abstract description 83
- 238000012360 testing method Methods 0.000 title claims abstract description 40
- 230000000694 effects Effects 0.000 title claims abstract description 32
- 238000010998 test method Methods 0.000 title abstract description 5
- 239000003921 oil Substances 0.000 claims description 35
- 238000006073 displacement reaction Methods 0.000 claims description 12
- 239000002199 base oil Substances 0.000 claims description 11
- 238000002474 experimental method Methods 0.000 claims description 7
- 238000009666 routine test Methods 0.000 claims description 6
- 239000011888 foil Substances 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 4
- 230000000994 depressogenic effect Effects 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims description 3
- 235000006508 Nelumbo nucifera Nutrition 0.000 claims 1
- 240000002853 Nelumbo nucifera Species 0.000 claims 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 claims 1
- 238000011160 research Methods 0.000 abstract description 6
- 230000001737 promoting effect Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
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Classifications
-
- 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
-
- 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
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
-
- 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
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
-
- 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
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
Abstract
The present invention relates to the rock testing systems and test method of a kind of effect of drive local load, and compared with conventional rock testing system, effect is extremely apparent.The present invention meets xial feed and keeps certain level, axial power local action is carried out to rock sample using dynamic load local action bar, so as to improve the research level to rock mechanics intensity.The present invention meets conventional rock testing system synchronization and applies the requirement of high-frequency power Local Loads, and can realize power Local Loads and confining pressure synchronously loading SERVO CONTROL, test data automatic collection.System of the present invention is stable, reliability is higher, is worth promoting and applying in the laboratory for carrying out rock mechanics indepth property research.
Description
Technical field
The present invention relates to rock or the measuring technology of the mechanical property of concrete, more specifically to a kind of drive office
The rock testing system of portion's load effect and a kind of rock testing method of drive local load effect.
Background technology
Rock is as one of main matter for forming the earth's crust, with current underground engineering, hydraulic engineering and great deep work
Cheng Jianshe is closely related.The research of the mechanical characteristic and destruction characteristic of rock is carried out, the feature of rock material is understood, contributes to
Instruct engineering is actual to build.And rock mechanics intensity is one most basic property of rock material, study of rocks mechanical strength, no
The technological means of disconnected linguistic term rock mechanics, is of great importance for the development for promoting rock mechanics.
The exploitation of deep rock mass is often related to strong geologic process with utilizing, and the effect of strong power can destroy mineral products money
Ambient stress residing for source influences the physico mechanical characteristic and stability of deep rock mass.Ground under dynamic loading is in itself
The high stress energy release of accumulation often triggers great disaster.Therefore, study dynamic load state under rock deformation failure and
Mechanical characteristic is of great significance.
Rock testing system commonly used in the prior art is mainly by axis pressure system, confining pressure system and control system group
Into operation principle is to apply axial compressive force to sample by axial system, applies confining pressure to sample by balancing gate pit, passes through simultaneously
Control system moves the upper and lower end face of sample, and then simulates mechanical characteristic of the source rock sample under various complex working conditions
And failure mode.
Although the rock testing system of the prior art can simulate the rock failure mechanism of rock characteristic under different operating modes,
The influence that both confining pressure and dynamic load act synergistically to rock is not accounted for.
The content of the invention
Rock it is an object of the invention to overcome the deficiencies of the prior art and provide a kind of effect of drive local load is strong
Test system and a kind of rock testing method of drive local load effect are spent, meets xial feed and keeps certain
Level carries out rock sample axial power local action using dynamic load local action bar, strong to rock mechanics so as to improve
The research level of degree.
Technical scheme is as follows：
A kind of rock testing system of drive local load effect, including main loading frame, axis pressure system, dynamic load
Local action confining pressure system, dynamic load local action confining pressure system are provided with dynamic load local action balancing gate pit, dynamic load local action bar,
Dynamic load local action balancing gate pit includes balancing gate pit's main body, rubber sleeve, upper holder block, lower lock block, and rubber sleeve is arranged at balancing gate pit
The inner wall of main body surrounds oil pressure chamber with balancing gate pit's main body, and balancing gate pit's main body offers the oil inlet communicated with oil pressure chamber, rock examination
Sample is arranged in rubber sleeve, and upper holder block, lower lock block penetrate respectively from the upper end of balancing gate pit's main body, lower end, with rock sample
Upper surface, lower surface offset；One end of dynamic load local action bar is connected with axis pressure system, and the other end is connected with upper holder block, axis pressure
System applies power local load by dynamic load local action bar to rock sample.
Preferably, balancing gate pit's main body includes balancing gate pit's sleeve, pressure chamber upper cover, balancing gate pit's lower cover, pressure chamber upper cover, pressure
Power room lower cover distinguishes sealed set in the upper end opening and lower ending opening of balancing gate pit's sleeve；Pressure chamber upper cover, balancing gate pit's lower cover point
Through hole is not offered, and upper holder block, lower lock block penetrate respectively from the through hole of pressure chamber upper cover, balancing gate pit's lower cover.
Preferably, axis pressure system includes loading top oil cylinder, loading base oil cylinder, displacement sensor, dynamic load force snesor, add
It carries top oil cylinder to be arranged at the top of main loading frame, loading base oil cylinder is arranged on the pedestal of main loading frame, local positioned at dynamic load
The lower section of actuating pressure room, displacement sensor are arranged on the oil cylinder of dynamic load top, for gathering axial displacement data, dynamic load power sensing
Device is arranged at the output terminal of loading top oil cylinder, for gathering the size of power Local Loads.
Preferably, dynamic load local action confining pressure system includes dynamic load local action loading frame, dynamic load local action pressure
Power room, dynamic load local action bar, load sensor, dynamic load local action loading frame are installed on the output terminal of loading top oil cylinder,
Dynamic load local action bar is arranged in dynamic load local action loading frame, and one end is connected with the output terminal of loading top oil cylinder, the other end
It is connected with upper holder block, load sensor is arranged at dynamic load local action loading frame lower surface, for gathering xial feed data.
Preferably, dynamic load local action confining pressure system further includes dynamic load local action trolley, dynamic load local action trolley
It is slidably connected by slide and main loading frame；The dynamic load local action loading frame being integrated, dynamic load local action pressure are set
Power room, dynamic load local action bar are installed on dynamic load local action trolley.
Preferably, it further includes the pressure indoor of drive local load effect, slided by slide and main loading frame
The routine test trolley of connection；During using pressure indoor, the dynamic load local action loading frame being integrated, dynamic load will be set locally to make
It is released and is connected from main loading frame with balancing gate pit, dynamic load local action bar, and dynamic load local action trolley is released, it then will peace
Routine test trolley push-in equipped with pressure indoor, pressure indoor is connected with main loading frame.
A kind of rock testing method of drive local load effect, using the rock testing system,
Step is as follows：
1) sample is installed：
It sticks to detect the foil gauge of axial deformation on rock sample surface, is packed into dynamic load local action balancing gate pit,
Dynamic load local action loading frame, dynamic load local action balancing gate pit, dynamic load local action bar are installed on main loading frame；
2) loading of axially loaded and dynamic load：
First, full of oil, it will then control in dynamic load local action balancing gate pit and apply level-one confining pressure, keep constant；Then apply
Add xial feed and record data, when being loaded into target xial feed, control loading power Local Loads.
Preferably, it is dismantled after the completion of experiment：Dynamic load local action bar is promoted to initial position, axis is unloaded and is depressed into about
0.5MPa unloads confining pressure to 0MPa, loading base oil cylinder is dropped to initial position.
Preferably, into one, in step 1), dynamic load local action balancing gate pit is installed on dynamic load local action trolley
On, dynamic load local action bar with upper holder block is connected, is pushed into dynamic load local action trolley, connects data cable and oil pipe, completes examination
Sample is installed；
In step 2), power Local Loads act on rock sample with certain frequency or amplitude, and are applying power
Gradual removal xial feed or confining pressure during Local Loads；
In step 3), dynamic load local action trolley is released, unloads rock sample, experiment is completed.
Preferably, the peak load that power Local Loads are applied is 300KN, highest frequency 70Hz；Power is local
The waveform of load is sine wave, triangular wave or square wave.
Beneficial effects of the present invention are as follows：
The rock testing system and test method of drive local load effect of the present invention, with conventional rock
Stone strength test system is compared, and effect is extremely apparent.The present invention meets xial feed and keeps certain level, is locally made using dynamic load
Axial power local action is carried out to rock sample with bar, so as to improve the research level to rock mechanics intensity.The present invention
Meet conventional rock testing system synchronization and apply the requirement of high-frequency power Local Loads, and can realize power office
Portion's load and confining pressure synchronously load SERVO CONTROL, test data automatic collection.
System of the present invention is stable, reliability is higher, is worth carrying out the experiment of rock mechanics indepth property research
It is promoted and applied in room.
Description of the drawings
Fig. 1 is the sectional view of the rock testing main structure of system of drive Local Loads；
Fig. 2 is the top view of the rock testing main structure of system of drive Local Loads；
Fig. 3 is the structure sectional view of dynamic load local action balancing gate pit；
In figure：10 be main loading frame, and 11 be pedestal, and 20 be dynamic load top oil cylinder, and 21 be displacement sensor, and 22 be dynamic load power
Sensor, 23 be loading base oil cylinder, and 30 be dynamic load local action balancing gate pit, and 301 be upper holder block, and 302 be lower lock block, and 303 be rubber
Leather sheath cylinder, 304 be balancing gate pit's sleeve, and 305 be oil inlet, and 306 be pressure chamber upper cover, and 307 be balancing gate pit's lower cover, and 31 be dynamic load office
Portion's actuating rod, 32 be dynamic load local action loading frame, and 33 be load sensor, and 34 be dynamic load local action trolley, and 40 be rock
Stone sample.
Specific embodiment
The present invention is further described in detail with reference to the accompanying drawings and embodiments.
The present invention can not meet the missing of axial dynamic load and confining pressure synchronization control function to solve the prior art, provide
A kind of the rock testing system and test method of the effect of drive local load, meet xial feed and keep certain level,
Axial power local action is carried out to rock sample using dynamic load local action bar, rock mechanics intensity is ground so as to improve
Study carefully level.
As shown in Figure 1 and Figure 2, the rock testing system of drive local load effect, including main loading frame
Frame 10 (in the present embodiment, peak load 200kN), axis pressure system, dynamic load local action confining pressure system, axis pressure system are used to carry
For axis pressure, dynamic load local action confining pressure system is used to realize that confining pressure is acted on local load simultaneously.
Axis pressure system includes loading top oil cylinder 20 (in the present embodiment, maximum output 300kN), loading base oil cylinder 23, position
Displacement sensor 21, dynamic load force snesor 22 (in the present embodiment, maximum range 500kN), loading top oil cylinder 20 are arranged on main add
10 top of frame is carried, loading base oil cylinder 23 is arranged on the pedestal 11 of main loading frame 10, positioned at dynamic load local action balancing gate pit
30 lower section provides certain power by Hydraulic servo system or displacement progress is axially loaded, and the load of application can be passed by load
Sensor 33 feeds back to computer.Displacement sensor 21 is arranged on dynamic load top oil cylinder 20, for gathering axial displacement data and leading to
It crosses data transmission wires and displacement data is transmitted to electronic computer, dynamic load force snesor 22 is arranged at the defeated of loading top oil cylinder 20
Outlet, for gathering the size of power Local Loads and being monitored.
Dynamic load local action confining pressure system include dynamic load local action loading frame 32, dynamic load local action balancing gate pit 30,
Dynamic load local action bar 31, load sensor 33 (in the present embodiment, maximum range 2000kN).As shown in figure 3, dynamic load is local
Actuating pressure room 30 includes balancing gate pit's main body, rubber sleeve 303, upper holder block 301, lower lock block 302, and rubber sleeve 303 is arranged at
The inner wall of balancing gate pit's main body surrounds oil pressure chamber with balancing gate pit's main body, and balancing gate pit's main body offers the oil inlet communicated with oil pressure chamber
305, rock sample is arranged in rubber sleeve 303, upper holder block 301, lower lock block 302 respectively from the upper end of balancing gate pit's main body, under
End penetrates, and the upper surface, lower surface with rock sample offset；One end of dynamic load local action bar 31 is connected with axis pressure system, separately
One end is connected with upper holder block 301, and axis presses system to apply power local load to rock sample by dynamic load local action bar 31.Pressure
Power room main body includes balancing gate pit's sleeve 304, pressure chamber upper cover 306, balancing gate pit's lower cover 307, under pressure chamber upper cover 306, balancing gate pit
Lid 307 distinguishes sealed set in the upper end opening and lower ending opening of balancing gate pit's sleeve 304；Pressure chamber upper cover 306, balancing gate pit's lower cover
307 offer through hole respectively, and upper holder block 301, lower lock block 302 are respectively from pressure chamber upper cover 306, the through hole of balancing gate pit's lower cover 307
It penetrates.
Dynamic load local action loading frame 32 is installed on the output terminal of loading top oil cylinder 20, and dynamic load local action bar 31 is worn
In dynamic load local action loading frame 32, one end is connected with the output terminal of loading top oil cylinder 20, and the other end connects with upper holder block 301
It connects, load sensor 33 is arranged at 32 lower surface of dynamic load local action loading frame, for gathering xial feed data and passing through
Payload data is transmitted to electronic computer by data transmission wires.
In order to realize the multi-purpose function of the present invention, that is, realize conventional rock testing and drive of the present invention
The rock testing of local load's effect, and corresponding to two kinds of test purposes, it is necessary to two sets of test devices.In the present invention, bag
Axis pressure system, the dynamic load local action confining pressure system of drive local load effect are included, further includes not drive local load work
Pressure indoor.Dynamic load local action confining pressure system further includes dynamic load local action trolley 34, and dynamic load local action trolley 34 is logical
Slide is crossed to be slidably connected with main loading frame 10；The dynamic load local action loading frame 32 being integrated, dynamic load local action are set
Balancing gate pit 30, dynamic load local action bar 31 are installed on dynamic load local action trolley 34.Pressure indoor is arranged on through slide and master
On the routine test trolley that loading frame 10 is slidably connected.
The dynamic load local action confining pressure system that pressure indoor of drive local load effect is not acted on drive local load
Altogether with main loading frame 10 and the loading base oil cylinder 23 of axis pressure system, surveyed by sliding dynamic load local action trolley 34 or routine
Trolley is tried, realizes function switch.In use, can according to implement demand installation drive local load act on pressure indoor or
The dynamic load local action confining pressure system of person's drive local load effect.If what is be currently installed on is dynamic load local action confining pressure system
System will then set the dynamic load local action loading frame 32 being integrated, dynamic load local action balancing gate pit, it is necessary to the pressure indoor that changes the outfit
30th, dynamic load local action bar 31 is released from main loading frame 10 and connected, and dynamic load local action trolley 34 is released, then will peace
Routine test trolley push-in equipped with pressure indoor, pressure indoor is connected with main loading frame 10.Otherwise similarly.
It is strong using the rock the present invention also provides a kind of rock testing method of drive local load effect
Test system is spent, step is as follows：
1) sample is installed：
It sticks to detect the foil gauge of axial deformation on rock sample surface, is packed into dynamic load local action balancing gate pit 30
It is interior, dynamic load local action loading frame 32, dynamic load local action balancing gate pit 30, dynamic load local action bar 31 are installed on main loading
On frame 10.
Specifically, in step 1), stick to detect the foil gauge of axial deformation on rock sample surface, by rock sample
Rubber sleeve 303, is then placed in balancing gate pit's sleeve 304 by rubber sleeve 303 in sidewall sheath, is packed into upper holder block 301 and tightens
Pressure chamber upper cover 306, balancing gate pit's lower cover 307.Dynamic load local action balancing gate pit 30 is installed on dynamic load local action trolley 34,
Dynamic load local action bar 31 with upper holder block 301 is connected, i.e., dynamic load local action bar 31 is inserted into the hole of upper holder block 301；It pushes away
Enter dynamic load local action trolley 34, connect data cable and oil pipe, complete sample installation.
2) loading of axially loaded and dynamic load：
First, full of oil, it will then control in dynamic load local action balancing gate pit 30 and apply level-one confining pressure, keep constant；Then
Apply xial feed and record data, when being loaded into target xial feed, control loading power Local Loads.Further,
Power Local Loads act on rock sample, and the gradual removal when applying power Local Loads with certain frequency or amplitude
Xial feed or confining pressure.Wherein, the peak load that power Local Loads are applied is 300KN, highest frequency 70Hz；Power
The waveform of Local Loads is sine wave, triangular wave or square wave.
3) dismantled after the completion of experiment：
Dynamic load local action bar 31 is promoted to initial position, axis is unloaded and is depressed into about 0.5MPa, confining pressure is unloaded to 0MPa, will load
Base oil cylinder 23 drops to initial position.Dynamic load local action trolley 34 is released, unloads rock sample, experiment is completed.
Above-described embodiment is intended merely to illustrate the present invention, and is not used as limitation of the invention.As long as according to this hair
Bright technical spirit is changed above-described embodiment, modification etc. will all fall in the range of the claim of the present invention.
Claims (10)
1. a kind of rock testing system of drive local load effect, which is characterized in that including main loading frame, axis pressure
System, dynamic load local action confining pressure system, dynamic load local action confining pressure system are provided with dynamic load local action balancing gate pit, dynamic load office
Portion's actuating rod, dynamic load local action balancing gate pit include balancing gate pit's main body, rubber sleeve, upper holder block, lower lock block, and rubber sleeve is set
In the inner wall of balancing gate pit's main body, oil pressure chamber is surrounded with balancing gate pit's main body, balancing gate pit's main body offers the oil inlet communicated with oil pressure chamber
Mouthful, rock sample is arranged in rubber sleeve, and upper holder block, lower lock block penetrate respectively from the upper end of balancing gate pit's main body, lower end, with rock
Upper surface, the lower surface of stone sample offset；One end of dynamic load local action bar is connected with axis pressure system, and the other end connects with upper holder block
It connects, axis presses system to apply power local load to rock sample by dynamic load local action bar.
2. the rock testing system of drive local load effect according to claim 1, which is characterized in that pressure
Room main body includes balancing gate pit's sleeve, pressure chamber upper cover, balancing gate pit's lower cover, pressure chamber upper cover, balancing gate pit's lower cover difference sealed set
In the upper end opening and lower ending opening of balancing gate pit's sleeve；Pressure chamber upper cover, balancing gate pit's lower cover offer through hole respectively, upper holder block,
Lower lock block penetrates respectively from the through hole of pressure chamber upper cover, balancing gate pit's lower cover.
3. the rock testing system of drive local load effect according to claim 1, which is characterized in that axis pressure
System includes loading top oil cylinder, loading base oil cylinder, displacement sensor, dynamic load force snesor, and loading top oil cylinder is arranged on main loading
Frame roof, loading base oil cylinder is arranged on the pedestal of main loading frame, positioned at the lower section of dynamic load local action balancing gate pit, displacement
Sensor is arranged on the oil cylinder of dynamic load top, and for gathering axial displacement data, dynamic load force snesor is arranged at loading top oil cylinder
Output terminal, for gathering the size of power Local Loads.
4. the rock testing system of drive local load effect according to claim 3, which is characterized in that dynamic load
Local action confining pressure system includes dynamic load local action loading frame, dynamic load local action balancing gate pit, dynamic load local action bar, negative
Lotus sensor, dynamic load local action loading frame are installed on the output terminal of loading top oil cylinder, and dynamic load local action bar is arranged in dynamic
Local action loading frame is carried, one end is connected with the output terminal of loading top oil cylinder, and the other end is connected with upper holder block, load sensor
Dynamic load local action loading frame lower surface is arranged at, for gathering xial feed data.
5. the rock testing system of drive local load effect according to claim 4, which is characterized in that dynamic load
Local action confining pressure system further includes dynamic load local action trolley, and dynamic load local action trolley is slided by slide and main loading frame
Dynamic connection；The dynamic load local action loading frame being integrated, dynamic load local action balancing gate pit, the installation of dynamic load local action bar are set
In on dynamic load local action trolley.
6. the rock testing system of drive local load effect according to claim 5, which is characterized in that also wrap
The pressure indoor of Kuo Bu drives local load effect, the routine test trolley being slidably connected by slide and main loading frame；Make
During with pressure indoor, will the dynamic load local action loading frame that be integrated, dynamic load local action balancing gate pit, dynamic load local action be set
Bar is released from main loading frame and connected, and dynamic load local action trolley is released, and then will be equipped with the routine test of pressure indoor
Trolley is pushed into, and pressure indoor is connected with main loading frame.
A kind of 7. rock testing method of drive local load effect, which is characterized in that usage right requirement 1 to 6
Rock testing system described in one, step are as follows：
1) sample is installed：
It sticks to detect the foil gauge of axial deformation on rock sample surface, is packed into dynamic load local action balancing gate pit, it will be dynamic
Load local action loading frame, dynamic load local action balancing gate pit, dynamic load local action bar are installed on main loading frame；
2) loading of axially loaded and dynamic load：
First, full of oil, it will then control in dynamic load local action balancing gate pit and apply level-one confining pressure, keep constant；Then axis is applied
To load and data are recorded, when being loaded into target xial feed, control loading power Local Loads.
8. the rock testing method of drive local load effect according to claim 7, which is characterized in that experiment
It is dismantled after finishing：Dynamic load local action bar is promoted to initial position, axis is unloaded and is depressed into about 0.5MPa, unloads confining pressure to 0MPa,
Loading base oil cylinder is dropped into initial position.
9. the rock testing method of drive local load effect according to claim 8, which is characterized in that into one
In step 1), dynamic load local action balancing gate pit is installed on dynamic load local action trolley for ground, by dynamic load local action bar with it is upper
Briquetting connects, and is pushed into dynamic load local action trolley, connects data cable and oil pipe, completes sample installation；
In step 2), power Local Loads act on rock sample with certain frequency or amplitude, and local applying power
Gradual removal xial feed or confining pressure during load；
In step 3), dynamic load local action trolley is released, unloads rock sample, experiment is completed.
10. the rock testing method of drive local load effect according to claim 9, which is characterized in that dynamic
The peak load that power Local Loads are applied is 300KN, highest frequency 70Hz；The waveform of power Local Loads for sine wave,
Triangular wave or square wave.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810016367.0A CN108106941A (en) | 2018-01-08 | 2018-01-08 | A kind of the rock testing system and test method of the effect of drive local load |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810016367.0A CN108106941A (en) | 2018-01-08 | 2018-01-08 | A kind of the rock testing system and test method of the effect of drive local load |
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| CN109211668A (en) * | 2018-09-20 | 2019-01-15 | 中国矿业大学 | A kind of coal petrography assembly exploitation unloader test device and method |
| CN109580398A (en) * | 2018-10-26 | 2019-04-05 | 华侨大学 | A kind of test method of rock dynamic creep |
| CN112903460A (en) * | 2021-02-04 | 2021-06-04 | 太原理工大学 | Device and method for testing multi-row group column single-shaft bearing of inclined goaf under disturbance influence |
| CN112986026A (en) * | 2021-02-19 | 2021-06-18 | 长江水利委员会长江科学院 | High-frequency high-load cyclic dynamic load test device and method for rock |
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