CN114563283A - Test system and test method for simulating soft rock shear rheology through multi-field coupling - Google Patents
Test system and test method for simulating soft rock shear rheology through multi-field coupling Download PDFInfo
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- 238000005859 coupling reaction Methods 0.000 title claims abstract description 32
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- 238000010998 test method Methods 0.000 title description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 141
- 238000010008 shearing Methods 0.000 claims abstract description 55
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- 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
- G01N3/24—Investigating strength properties of solid materials by application of mechanical stress by applying steady shearing forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
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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
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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
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Abstract
The invention provides a test system for simulating soft rock shear rheology by multi-field coupling, which is used for carrying out shear test on a soft rock sample and comprises: the device comprises an upper shearing box, a lower shearing box, a water pressure loading device and a mechanical pressure loading device, wherein the upper shearing box and the lower shearing box form a box body of an integrated structure, and a soft rock sample is arranged in the box body; the water pressure loading device is connected with the box body, and is used for inputting a solution mechanical pressure loading device with a preset PH value into the box body under the water pressure of a preset value, and is connected with the box body, and is used for applying a physical pressure of the preset value to the box body and shearing the soft rock sample. The method is used for researching the rheological effect and the strength parameter of the soft rock stratum under the single or combined action of different osmotic pressures, different shear stresses, different blasting parameters and different chemical solutions, and further providing effective and reliable test reference for researching the real stratum corresponding to the stratum environment simulated by the test system for simulating the soft rock shear rheology through multi-field coupling.
Description
Technical Field
The invention belongs to the technical field of rock-soil body shear tests, and particularly relates to a test system and a test method for simulating soft rock shear rheology through multi-field coupling.
Background
A two-fold limestone stratum containing weak interlayers widely exists in southwest areas of China, the stratum has abundant high-quality limestone mineral resources and is an important building material source for building a large number of basic facilities in China, and the research on the mechanical properties of the weak interlayers is crucial to the evaluation of the stability of mine side slopes. Research shows that under the coupling action of factors such as rainfall seepage and blasting mining, the slope deformation trend controlled by the weak interlayer presents typical aging characteristics which gradually increase along with time. Therefore, the research on the rheological property of the weak interlayer under multi-field coupling has important theoretical significance and engineering practical value for guaranteeing safe mining of mines. The weak interlayer is subjected to the long-term deterioration action of rainwater in an initial ground stress field, the shear strength is continuously weakened, and the plasticity and rheological property of the rock mass are remarkably changed; repeated blasting in mining causes damage accumulation of the weak interlayer and deterioration of mechanical properties; meanwhile, the corrosion damage phenomena of the weak interlayer caused by various water chemical environments such as acid rain, surface water polluted by surrounding environmental factors, underground water and the like are more and more, the accumulation effect of the slow corrosion action is changed from the surface structure of an object to the inside of the object, so that the mineral composition, the microstructure and the mechanical property of a rock body can be changed, and the adverse engineering effect is caused; therefore, under the repeated and mutual action of the coupling of the water-force-chemical-blasting process (HMC-blasting vibration), the rheological effect of the weak interlayer is obviously changed, the strength parameter is continuously reduced, the side slope continuously generates creep deformation along the weak interlayer, and when the damage and the deformation are accumulated to a certain degree, the side slope generates integral sliding deformation damage along the weak interlayer. In order to research the rheological effect of the weak interlayer in practical engineering, the development of indoor shear rheological test research is the simplest and most effective means at the present stage. At present, the conventional shear rheological test method for rock is very mature, but shear rheological tests under HMC-blasting vibration coupling are only reported, and a test device and a test method for rock shear rheological effects under the single or combined action of different osmotic pressures, different shear stresses, different blasting parameters and different chemical solutions are not seen. .
Namely, the prior art still has blank for the experimental exploration of rheological effect, strength parameters and the like of the weak interlayer when the soft rock stratum is subjected to multi-field coupling, namely under the repeated and interactive action of coupling of water-force-chemistry-blasting process (HMC-blasting vibration);
therefore, the investigation of the rheological effect and the strength parameter of the soft rock stratum under the single or combined action of different osmotic pressures, different shear stresses, different blasting parameters and different chemical solutions provides an effective and reliable test reference for the actual soft rock stratum investigation, and the technical problem to be solved by the technical personnel in the field is urgently needed.
Disclosure of Invention
The invention provides a test system for simulating shear rheology of soft rock by multi-field coupling, which at least solves the technical problems;
in order to solve the above problems, a first aspect of the present invention provides a multi-field coupling soft rock shear rheology simulation test system, for performing a shear test on a soft rock sample, the system comprising: an upper shearing box; the upper shearing box and the lower shearing box form a box body of an integrated structure, and the soft rock sample is arranged in the box body; the mechanical pressure loading device is connected with the box body and is used for applying physical pressure of a preset value to the box body; and the water pressure loading device is connected with the box body and is used for inputting solutions with different pressures and different PH values into the box body.
In a first aspect, the mechanical pressure loading device comprises a normal static pressure gauge, a horizontal dynamic pressure gauge and a horizontal static pressure gauge; the normal-phase static pressure device is arranged at the center of the top of the upper shearing box and is used for applying vertical pressure to the upper shearing box; the horizontal dynamic load pressure device is arranged on one side of the box body and is used for applying periodic vibration pressure to the box body; the horizontal static load pressure gauge is arranged on the other side of the box body, acts on the lower shearing box and is used for applying constant horizontal thrust to the lower shearing box.
In a first aspect, the system further comprises: the intermediate pressure device is arranged between the normal phase pressure sensor and the box body and communicated with the box body; the water pressure loading device further comprises: the first water tank is filled with purified water; a second water tank, wherein a regulating solution is arranged in the second water tank; a third water tank, wherein a PH tester is arranged in the third water tank; the first water tank and the second water tank are communicated with the third water tank and are used for inputting a preset amount of purified water or a preset amount of adjusting solution into the third water tank so as to form a mixed solution with a preset PH value; the rubber hose is communicated with the third water tank and the intermediate pressure device so as to input the mixed solution into the box body through the intermediate pressure device.
In a first aspect, the water pressure loading device includes: the water pump is arranged on the rubber hose; the water pump controller is connected with the water pump and used for controlling the output frequency of the water pump; and the water pressure sensor is arranged on the rubber hose and used for detecting the pressure of the mixed solution flowing through the rubber hose and transmitting a signal of the pressure to the water pump controller.
In a first aspect, the system further comprises: the AD converter, the AD converter with water pressure sensor and water pump controller connects, the AD converter is used for receiving the water pressure signal that water pressure sensor detected, and will water pressure signal conversion for signal of telecommunication send to water pump controller.
In a first aspect, the system further comprises: and the outlet of the air compressor is also connected with the rubber hose and used for inputting air into the box body through the rubber hose and drying the sample.
In a first aspect, the system further comprises: a support including a first support surface and a second support surface, the second support surface being located above the first support surface; the bearing box is arranged on the first supporting surface and is used for bearing the box body; the normal static pressure device is arranged on the second supporting surface, and the output end of the normal static pressure device penetrates through the second supporting surface to be in contact with the intermediate pressure device.
In a first aspect, a slide rail is arranged on the first supporting surface, the length of the slide rail exceeds the coverage range between the first supporting surface and the second supporting surface, and a pulley is arranged on the bearing box and can slide along the slide rail.
In a first aspect, the system further comprises: the first displacement sensor is arranged on the normal static load pressure gauge and used for detecting the normal displacement of the box body; and the second displacement sensor is arranged on the lower box body and used for detecting the horizontal displacement of the box body.
In a second aspect, the present invention provides a method for simulating soft rock shear rheology, the method being applied to any one of the above-mentioned multi-field coupling soft rock shear rheology simulation test systems, the method including: preparing a soft rock sample; the preparation of the soft rock sample comprises the following steps: configuring materials similar to the actual physical parameters of the soft rock according to the actual physical parameters of the soft rock to form the soft rock sample; placing the soft rock sample in a shearing device; applying a preset mechanical vibration pressure to the shearing equipment and applying a preset water pressure to the shearing equipment; the applying a preset water pressure to the shearing device comprises: inputting a mixed solution with a preset PH value into the shearing equipment according to a preset pressure value; applying a shear force to the shearing device; recording the normal displacement and the horizontal displacement of the shearing device.
Has the advantages that: the invention provides a test system for simulating shear rheology of soft rock by multi-field coupling, which is characterized in that a soft rock sample is arranged in a box body of an integrated structure formed by an upper shear box and a lower shear box, a preset physical pressure is applied to the box body by a mechanical pressure loading device so as to simulate stress environments of different degrees of a stratum, and a preset PH value solution is input into the box body by a water pressure loading device with a preset water pressure so as to simulate permeation and water pressure environments in the stratum. The shear test is carried out on the soft rock sample under the stress, permeability and water pressure environments to explore the rheological effect and the strength parameter of the soft rock stratum under the single or combined action of different osmotic pressures, different shear stresses, different blasting parameters and different chemical solutions, and further effective and reliable test reference is provided for the exploration of the real stratum corresponding to the stratum environment simulated by the test system for simulating the soft rock shear rheology through multi-field coupling. Namely, the research on the rheological property of the weak interlayer under multi-field coupling provides experimental reference for guaranteeing the theoretical significance of mine safe mining and the engineering practical value.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of an overall structure of a multi-field coupling soft rock shear rheology simulation test system according to an embodiment of the present invention;
FIG. 2 is a first side view of a multi-field coupling soft rock shear rheology simulation test system according to a first embodiment of the present invention;
FIG. 3 is a second side view of the multi-field coupled soft rock shear rheology simulation test system according to the first embodiment of the present invention;
FIG. 4 is a flow chart of a method for simulating a soft rock shear rheology test in a second embodiment of the present invention.
Description of reference numerals:
1. a normal static load pressure gauge;
2. a support;
3. a support pillar;
4. a horizontal dynamic load forcer;
5. a first displacement sensor;
6. a pressure device;
7. a pressure plate;
8. a screw;
9. a second displacement sensor;
10. an upper shearing box;
11. a lower shear box;
12. a ball bearing;
13. a horizontal static load forcer;
14. a carrying box;
15. a pulley;
16. a slide rail;
17. locking;
18. a rubber hose;
19. an air compressor;
20. a water pressure sensor;
21. an AD converter;
22. a water pump controller;
23. a voltage inverter;
24. a water pump;
25. a water tank;
26. a pH tester;
27. a water valve;
28 supporting the frame.
Detailed Description
The technical solutions in the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
Meanwhile, in the embodiments of the present description, when an element is referred to as being "fixed to" another element, it may be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical", "horizontal", "left", "right" and the like used in the embodiments of the present specification are for illustrative purposes only and are not intended to limit the present invention.
The first embodiment is as follows:
as shown in fig. 1 to 3, in this embodiment, a multi-field coupling soft rock shear rheology simulation test system is provided, where the test system is used to perform a shear test on a soft rock sample, and the system includes:
the device comprises an upper shearing box 10, a lower shearing box 11, a mechanical pressure loading device and a water pressure loading device;
the upper shearing box 10 and the lower shearing box 11 form an integral box body, and a soft rock sample is arranged in the box body;
the water pressure loading device is connected with the box body and is used for inputting a solution with a preset PH value into the box body under the water pressure of a preset value;
and the mechanical pressure loading device is connected with the box body and is used for applying physical pressure of a preset value to the box body and shearing the soft rock sample.
In the technical scheme, the soft rock sample is arranged in the box body of the integrated structure formed by the upper shearing box 10 and the lower shearing box 11, the physical pressure of a preset value is applied to the box body through the mechanical pressure loading device so as to simulate stress environments of different degrees of a stratum, and the solution with a preset PH value is input into the box body through the water pressure loading device with the water pressure of the preset value so as to simulate the permeation and water pressure environments in the stratum. The shear test is carried out on the soft rock sample under the stress, permeability and water pressure environments to explore the rheological effect and the strength parameter of the soft rock stratum under the single or combined action of different osmotic pressures, different shear stresses, different blasting parameters and different chemical solutions, and further effective and reliable test reference is provided for the exploration of the real stratum corresponding to the stratum environment simulated by the test system for simulating the soft rock shear rheology through multi-field coupling. Namely, the research on the rheological property of the weak interlayer under multi-field coupling provides experimental reference for guaranteeing the theoretical significance of mine safe mining and the engineering practical value.
Specifically, as for the mechanical pressure loading device in the first embodiment, the first embodiment proposes an implementation manner, which includes: the normal phase static load pressure device, the horizontal dynamic load pressure device 4 and the horizontal static load pressure device 13 are arranged at the center of the top of the upper shearing box 10 and used for applying vertical pressure to the upper shearing box 10; the horizontal dynamic load pressure device 4 is arranged on one side of the box body and used for applying periodic vibration pressure to the box body and simulating vibration stress when the bottom layer is exploded, and the horizontal static load pressure device 13 is arranged on the other side of the box body and acts on the lower shearing box 11 and is used for applying constant horizontal thrust to the lower shearing box 11 so as to shear the soft rock sample.
Specifically, for the system in the first embodiment of the present invention, the system further includes an intermediate pressure device 6, the intermediate pressure device 6 is disposed between the normal pressure sensor and the box body, and is disposed on the box body through a pressure plate 7, and the intermediate pressure device 6 is communicated with the box body; based on this, the first embodiment further provides an implementation manner, which includes: the first water tank is filled with purified water; a second water tank, wherein a regulating solution is arranged in the second water tank; a third water tank, wherein a PH tester 26 is arranged in the third water tank; the first water tank and the second water tank are communicated with the third water tank and are used for inputting a preset amount of purified water and a preset amount of regulating solution into the third water tank so as to form a mixed solution with a preset PH value; the rubber hose 18 and the rubber hose 18 are communicated with the third water tank and the intermediate pressure device 6, so that the mixed solution is input into the box body through the intermediate pressure device 6 to simulate a complex underground water environment. Meanwhile, the first water tank, the second water tank and the third water tank are supported by a support frame 28, the arrangement positions of the first water tank and the second water tank are higher than that of the third water tank, water valves 27 are arranged at the water outlets of the first water tank and the second water tank, and when the water valves 27 are opened, the solution in the first water tank and the solution in the second water tank flow into the third water tank through gravity.
Meanwhile, in order to enable the rubber hose 18 in the first embodiment to output the preset water pressure value, the first embodiment also provides another implementation method for the water pressure loading device, and the implementation method includes: the water pump 24, the water pump controller 22 and the water pressure sensor, wherein the water pump 24 is arranged on the rubber hose 18; the water pump controller 22 is connected with the water pump 24 and is used for controlling the output frequency of the water pump 24; the water pressure sensor is provided on the rubber hose 18 for detecting the pressure of the mixed solution flowing through the rubber hose 18 and transmitting a signal of the pressure to the water pump controller 22. Specifically speaking, still be provided with the codec in the water pump controller 22, can carry out the signal compilation that corresponds according to the preset pressure numerical value that the staff edited to the voltage inverter 23 in with the signal transmission of preset pressure numerical value to water pump controller 22, this voltage inverter 23 carries out voltage frequency conversion according to received signal, for example: if the water pressure is less than the preset value, the water pump controller 22 will control the voltage frequency converter 23 in the water pump 24 to make the input voltage of the water pump 24 become larger, so that the power of the water pump 24 becomes larger, and the output water pressure also becomes larger: if the water pressure is greater than the preset value, the water pump controller 22 controls the voltage frequency converter 23 in the water pump 24 to reduce the input voltage of the water pump 24, so that the power of the water pump 24 is reduced, the output water pressure is also reduced, and the osmotic pressure is accurately controlled.
Further, as to the system in the embodiment of the present invention, the first embodiment further provides an implementation manner, where the implementation manner includes: AD converter 21, AD converter 21 is connected with water pressure sensor and water pump controller 22, and AD converter 21 is used for receiving the water pressure signal that water pressure sensor detected to convert water pressure signal to electric signal transmission to water pump controller 22. Therefore, the control of the water pressure is more accurate, and the experimental error is reduced.
For the system of the first embodiment of the present invention, the first embodiment further provides an implementation manner, where the implementation manner further includes: and an outlet of the air compressor 19 is also connected with the rubber hose 18, and the air compressor 19 is used for inputting air into the box body through the rubber hose 18 to dry the sample.
For the system of the first embodiment of the present invention, the first embodiment further provides an implementation manner, where the implementation manner further includes: the support comprises a support 2 and a bearing box 14, wherein the support 2 comprises a first supporting surface and a second supporting surface, and the second supporting surface is positioned above the first supporting surface; the carrying box 14 is arranged on the first supporting surface, and the carrying box 14 is used for carrying the box 14 body; the normal static pressure device 1 is arranged on the second supporting surface, and the output end of the normal static pressure device 1 passes through the second supporting surface to be contacted with the intermediate pressure device 6.
Further, with respect to the bracket 2 in the first embodiment, the first embodiment also proposes an implementation manner, which includes: be provided with slide rail 15 on the first holding surface, and the length of slide rail 15 surpasss the coverage between first holding surface and the second holding surface, bears and is provided with pulley 16 on the box 14, and pulley 16 can slide along slide rail 15, just so can be more accurate make the center alignment normal direction static load pressure gauge 1 and the horizontal static load ware of box body, reduce experimental error.
As to the system of the first embodiment of the present invention, the first embodiment further provides an implementation manner, where the implementation manner further includes: the first displacement sensor 5 is arranged on the normal static load pressure device 1 and is used for detecting the normal displacement of the box body; the second displacement sensor 9 is arranged on the lower box body and used for detecting the horizontal displacement of the box body.
Specifically, regarding the connection manner between the box body and the carrying box 14 in the first embodiment, the first embodiment further provides an implementation manner, which includes: the box body and the bearing box 14 are provided with the lock catches 17, so that the shearing box can move along with the box body when the bearing box 14 moves, and the lock catches 17 are released after the box body and the bearing box reach a proper position, so that pressure can be applied.
Further, as for the connection manner between the box body and the carrying box 14 in the first embodiment, the first embodiment further provides an implementation manner, which includes: the connection position of the bearing box 14 and the box body is connected in a threaded manner, namely, the detachable connection mode of the bearing box 14 and the box body is achieved through the mutual matching of the screw hole and the screw 8.
Still further, regarding the connection manner between the box body and the carrying box 14 in the first embodiment, the first embodiment proposes an implementation manner, which includes: a plurality of balls 12 are arranged between the bearing box 14 and the lower box body.
And, in order to prevent the carrying box 14 and the box body from deviating during the moving process, the first embodiment further proposes an implementation mode, which includes: the bearing box 14 is provided with a lock catch 17, the lower box body is provided with a lock ring, and when the bearing box 14 and the box body need to be moved, the lock catch 17 is buckled on the lock ring so as to temporarily fix the bearing box 14 and the box body.
The second embodiment:
as shown in fig. 4, the second embodiment provides a method for simulating a soft rock shear rheology test, where the method is applied to any one of the above test systems for simulating a soft rock shear rheology by multi-field coupling, and the method includes: firstly, preparing a soft rock sample; preparing a soft rock sample comprises: configuring materials similar to the actual physical parameters of the soft rock according to the actual physical parameters of the soft rock to form a soft rock sample; placing a soft rock sample in shearing equipment; then applying preset mechanical vibration pressure to the shearing equipment and applying preset water pressure to the shearing equipment; applying a preset water pressure to the shearing device comprises: inputting a mixed solution with a preset PH value into shearing equipment according to a preset pressure value; applying a shear force to the shearing device; and finally, recording the normal displacement and the horizontal displacement of the shearing equipment.
Further, for the second embodiment, after the mixed solution with the preset PH value is input into the shearing device according to the preset pressure value, the second embodiment further provides an implementation manner, which further includes: and injecting air into the soft rock sample in the box body by using air drying equipment so as to dry the soft rock sample.
Since the second embodiment and the first embodiment are an embodiment with the same inventive concept, and part of the structure is completely the same, the structure of the second embodiment that is substantially the same as that of the first embodiment will not be described in detail, and the detailed description will not be referred to the first embodiment.
Finally, it should be noted that: the above-mentioned embodiments are merely specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; and the modifications, changes or substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention. Are intended to be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (10)
1. A test system for simulating soft rock shear rheology through multi-field coupling is used for carrying out shear test on a soft rock sample, and is characterized by comprising:
an upper shearing box;
the upper shearing box and the lower shearing box form a box body of an integrated structure, and the soft rock sample is arranged in the box body;
the water pressure loading device is connected with the box body and is used for inputting a solution with a preset PH value into the box body under the water pressure of a preset value
And the mechanical pressure loading device is connected with the box body and is used for applying physical pressure of a preset value to the box body and shearing the soft rock sample.
2. The multi-field coupling soft rock shear rheology simulation test system of claim 1, wherein the mechanical pressure loading device comprises a normal static load pressure gauge, a horizontal dynamic load pressure gauge and a horizontal static load pressure gauge;
the normal-phase static pressure device is arranged at the center of the top of the upper shearing box and is used for applying vertical pressure to the upper shearing box;
the horizontal dynamic load pressure device is arranged on one side of the box body and is used for applying periodic vibration pressure to the box body;
the horizontal static load pressure gauge is arranged on the other side of the box body, acts on the lower shearing box and is used for applying constant horizontal thrust to the lower shearing box.
3. The system for simulating soft rock shear rheology using multi-field coupling as claimed in claim 1 further comprising:
the intermediate pressure device is arranged between the normal phase pressure sensor and the box body and communicated with the box body;
the water pressure loading device further comprises:
the first water tank is filled with purified water;
a second water tank, wherein a regulating solution is arranged in the second water tank;
a third water tank, wherein a PH tester is arranged in the third water tank;
the first water tank and the second water tank are communicated with the third water tank and are used for inputting a preset amount of purified water and a preset amount of regulating solution into the third water tank so as to form a mixed solution with a preset PH value;
the rubber hose is communicated with the third water tank and the intermediate pressure device so as to input the mixed solution into the box body through the intermediate pressure device.
4. The system for simulating shear rheology of soft rock of claim 3 wherein said water pressure loading means comprises:
the water pump is arranged on the rubber hose;
the water pump controller is connected with the water pump and used for controlling the output frequency of the water pump;
and the water pressure sensor is arranged on the rubber hose and used for detecting the pressure of the mixed solution flowing through the rubber hose and transmitting a signal of the pressure to the water pump controller.
5. The system for simulating soft rock shear rheology using multi-field coupling as claimed in claim 4 further comprising:
the AD converter, the AD converter with water pressure sensor and the water pump controller is connected, the AD converter is used for receiving the water pressure signal that water pressure sensor detected, and will water pressure signal conversion is signal of telecommunication send to the water pump controller.
6. The system for simulating soft rock shear rheology using multi-field coupling of claim 3 further comprising:
and the outlet of the air compressor is also connected with the rubber hose and used for inputting air into the box body through the rubber hose so as to dry the soft rock sample.
7. The system for simulating soft rock shear rheology using multi-field coupling of claim 3 further comprising:
a support including a first support surface and a second support surface, the second support surface being located above the first support surface;
the bearing box is arranged on the first supporting surface and is used for bearing the box body;
the normal static pressure device is arranged on the second supporting surface, and the output end of the normal static pressure device penetrates through the second supporting surface to be in contact with the intermediate pressure device.
8. The multi-field coupling soft rock shear rheology simulation test system of claim 7, further comprising:
the bearing box is characterized in that a sliding rail is arranged on the first supporting surface, the length of the sliding rail exceeds the coverage range between the first supporting surface and the second supporting surface, and a pulley is arranged on the bearing box and can slide along the sliding rail.
9. The system for simulating soft rock shear rheology using multi-field coupling as claimed in claim 1 further comprising:
the first displacement sensor is arranged on the normal static load pressure gauge and used for detecting the normal displacement of the box body;
and the second displacement sensor is arranged on the lower box body and is used for detecting the horizontal displacement of the box body.
10. A method for simulating shear rheology test of soft rock by multi-field coupling, which is applied to the test system for simulating shear rheology of soft rock by multi-field coupling as claimed in any one of claims 1 to 9, and which comprises:
preparing a soft rock sample; the preparation of the soft rock sample comprises the following steps: configuring materials similar to the actual physical parameters of the soft rock according to the actual physical parameters of the soft rock to form the soft rock sample;
placing the soft rock sample in a shearing device;
applying a preset mechanical vibration pressure to the shearing equipment and applying a preset water pressure to the shearing equipment; the applying a preset water pressure to the shearing device comprises: inputting a mixed solution with a preset PH value into the shearing equipment according to a preset pressure value;
applying a shear force to the shearing device;
recording the normal displacement and the horizontal displacement of the shearing device.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115078128A (en) * | 2022-06-29 | 2022-09-20 | 江河工程检验检测有限公司 | Test equipment and test method for simulating rock shear failure in real underwater environment |
| CN116907995A (en) * | 2023-09-14 | 2023-10-20 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Test system and test method for detecting multi-field coupling mechanical properties of mixed rock |
| CN117250068A (en) * | 2023-11-20 | 2023-12-19 | 华侨大学 | Soft rock sample preparation equipment and sample preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106771072A (en) * | 2016-12-26 | 2017-05-31 | 大连理工大学 | Continue the Mineral rheology pilot system of water environment effect |
| CN107063962A (en) * | 2016-12-16 | 2017-08-18 | 河海大学 | Rock couples infiltration experiment device and method |
| US20190011344A1 (en) * | 2017-07-06 | 2019-01-10 | Inst Rock & Soil Mech Cas | Ring Shear and Seepage-Coupled Apparatus and Ring Shear and Seepage-Coupled Test System for Rock and Rock Fracture under Tension or Compression Stress |
| CN110779811A (en) * | 2019-10-25 | 2020-02-11 | 武汉科技大学 | Rainfall seepage and blasting vibration coupling simulation soft rock shear rheology test system |
-
2022
- 2022-02-16 CN CN202210141988.8A patent/CN114563283A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107063962A (en) * | 2016-12-16 | 2017-08-18 | 河海大学 | Rock couples infiltration experiment device and method |
| CN106771072A (en) * | 2016-12-26 | 2017-05-31 | 大连理工大学 | Continue the Mineral rheology pilot system of water environment effect |
| US20190011344A1 (en) * | 2017-07-06 | 2019-01-10 | Inst Rock & Soil Mech Cas | Ring Shear and Seepage-Coupled Apparatus and Ring Shear and Seepage-Coupled Test System for Rock and Rock Fracture under Tension or Compression Stress |
| CN110779811A (en) * | 2019-10-25 | 2020-02-11 | 武汉科技大学 | Rainfall seepage and blasting vibration coupling simulation soft rock shear rheology test system |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115078128A (en) * | 2022-06-29 | 2022-09-20 | 江河工程检验检测有限公司 | Test equipment and test method for simulating rock shear failure in real underwater environment |
| CN115078128B (en) * | 2022-06-29 | 2023-10-20 | 江河安澜工程咨询有限公司 | Rock shear failure test equipment and test method for simulating real underwater environment |
| CN116907995A (en) * | 2023-09-14 | 2023-10-20 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Test system and test method for detecting multi-field coupling mechanical properties of mixed rock |
| CN116907995B (en) * | 2023-09-14 | 2023-12-05 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Test system and test method for detecting multi-field coupling mechanical properties of mixed rock |
| CN117250068A (en) * | 2023-11-20 | 2023-12-19 | 华侨大学 | Soft rock sample preparation equipment and sample preparation method thereof |
| CN117250068B (en) * | 2023-11-20 | 2024-01-30 | 华侨大学 | Soft rock sample preparation equipment and sample preparation method thereof |
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