Fault slip rock burst physical simulation test and monitoring method

Abstract

The invention belongs to the technical field of underground engineering rock burst physical simulation, and provides a fault slippage rock burst physical simulation test and monitoring method which comprises the following steps: making a model test piece; wherein an electric conductor is pre-buried in the model test piece according to a preset position, inclination and trend; a loading test is carried out on the manufactured model test piece, and when a fault needs to be activated through loading, the electric conductor is powered on to activate the fault; acquiring resistivity information, stress information and thermal imaging information of the model test piece in the loading process; according to the resistivity information, the stress information and the thermal imaging information, the deformation condition and the fault activation degree of the model test piece are judged. The strength of the rock mass near the fault is weakened in an electric activation mode, the test effect and the test efficiency are improved, the deformation condition and the fault activation degree of the model test piece are judged according to the resistivity information, the stress information and the thermal imaging information, the monitoring precision is guaranteed, and a favorable guarantee is provided for research of underground engineering disasters.

Description

Technical Field

[0001] The invention belongs to the technical field of physical simulation of rock burst in underground engineering, and in particular relates to a physical simulation test and monitoring method of rock burst in fault slip. Background Art

[0002] When carrying out underground engineering, disasters such as roof collapse often occur in the rock mass around the tunnel. In order to reduce the occurrence of disasters during construction and improve construction safety, a physical model is constructed to simulate the stress and displacement of underground engineering faults, which is of great significance for understanding the occurrence mechanism of various disasters in actual underground engineering.

[0003] The inventors found that when conducting a physical simulation test of fault slip and impact ground pressure, the current test method cannot activate the fault well. When the fault is activated simply by relying on impact force, it often causes the appearance of faults in other parts, affecting the test results, test efficiency and monitoring accuracy, and is not conducive to the study of underground engineering disasters. Summary of the invention

[0004] In order to solve the above problems, the present invention proposes a fault slip impact rock pressure physical simulation test and monitoring method. The present invention weakens the strength of the rock mass near the fault by electrical activation, improves the fault activation effect, ensures the test effect and test efficiency, and judges the deformation of the model specimen and the degree of fault activation according to the resistivity information, force information and thermal imaging information, thereby ensuring the monitoring accuracy.

[0005] In order to achieve the above object, the present invention is implemented through the following technical solutions: The present invention provides a fault slip rock burst physical simulation test and monitoring method, comprising: A model specimen is made; wherein, in the model specimen, a conductor is embedded in accordance with a preset position, inclination and direction; Carry out a loading test on the manufactured model specimen, and when the load reaches the point where fault activation is required, energize the conductor to activate the fault; Obtain the resistivity information, stress information and thermal imaging information of the model specimen during the loading process; determine the deformation of the model specimen and the degree of fault activation based on the resistivity information, stress information and thermal imaging information.

[0006] Furthermore, in the model specimen, the relative position between the tunnel and the fault structure is determined, and a conductive copper wire mesh is pre-buried at the location of the fault according to the inclination and strike conditions.

[0007] Furthermore, in the model specimen, iron powder and mica flakes were added near the conductor.

[0008] Furthermore, the faults of the model specimens were activated by mainly electrical excitation and supplemented by continuous stress loading in the slip area.

[0009] Furthermore, a preset first-level loading cylinder is used to directly load the model specimen, a loading plate acting on the surface of the model specimen is arranged on the first-level loading cylinder, and a preset second-level loader is used to compensate the first-level loading cylinder.

[0010] Furthermore, when the loading plate and the model specimen are separated due to instantaneous deformation of the boundary between the model specimen and the first-level loading cylinder, the second-level loader directly compensates the first-level loading cylinder to maintain the loading state between the first-level loading cylinder and the model specimen.

[0011] Furthermore, multiple first-level loading cylinders are preset to load different areas of the model specimen, and some first-level loading cylinders in the slip area are unloaded and withdrawn to provide slip space for the fault; the first-level loading cylinders along the fault slip direction follow up the loading force in time at the moment of fault slip and compensate.

[0012] Furthermore, the fault weakening effect can be adjusted by controlling the current intensity in the conductor.

[0013] Furthermore, the comprehensive evaluation index is determined based on the resistivity information, stress information and thermal imaging information; the deformation of the model specimen and the degree of fault activation are judged based on the size of the comprehensive evaluation index. for: ; in, For the current moment The resistivity at ; The resistivity at the previous moment; For the current moment The magnitude of the force at the time The magnitude of the force at the previous moment; The time it takes for the thermal imaging to change from uniform to non-uniform; The preset duration; , and is the weight coefficient; , and The initial value is , and When the resistivity suddenly increases or decreases, the force suddenly increases or decreases, and the thermal imaging changes from uniform to non-uniform, and one or two of the indicators are greater than the corresponding preset value, the corresponding weight coefficient is increased to maintain + + =1 unchanged, the corresponding preset value is greater than the corresponding threshold value; and when the three first evaluation indicators, the second evaluation indicators and the third evaluation indicators are all greater than the corresponding preset values, or are all less than the corresponding preset values, , and Initial value , and .

[0014] Furthermore, the surrounding rocks at both ends of the fault are connected and formed into an anchored rock mass through support components with deformation resistance. Before the fault slips, the support components conform to Newton's first law, and the force change characteristics of the support components are consistent with the force change characteristics of the fault. When the fault slips, the sliding characteristics conform to Newton's second law, and the stress of the support components rapidly decreases to a stable value. By measuring the force and deformation characteristics on the support components, the force and sliding characteristics of the fault slip are analyzed.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention pre-buries a conductor in a model specimen according to a preset position, inclination and direction; performs a loading test on the manufactured model specimen, and when the fault needs to be activated, energizes the conductor to activate the fault; weakens the strength of the rock mass near the fault by electrical activation, thereby improving the test effect and test efficiency; determines the deformation of the model specimen and the degree of fault activation based on resistivity information, force information and thermal imaging information, thereby ensuring monitoring accuracy and providing favorable guarantees for the study of underground engineering disasters.

[0016] 2. During the manufacturing process of the model specimen of the present invention, iron powder and mica flakes are added to the material near the fault simulation structure, which further weakens the strength of the rock mass near the fault and improves the fault activation effect.

[0017] 3. In the present invention, when the loading plate and the model specimen are separated due to instantaneous deformation of the boundary between the model specimen and the first-level loading cylinder, the second-level loader directly compensates the first-level loading cylinder, so that the first-level loading cylinder and the model specimen maintain a loaded state, avoiding the problem of stress energy loss.

[0018] 4. In the present invention, the fault weakening effect is adjusted by controlling the current intensity in the conductor, thereby achieving the same purpose as the actual fault structure activation degree, and improving the validity and value of the test data. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings in the specification that constitute a part of this embodiment are used to provide a further understanding of this embodiment. The schematic embodiments of this embodiment and their descriptions are used to explain this embodiment and do not constitute improper limitations on this embodiment.

[0020] Figure 1 This is a flow chart of Example 1 of the present invention. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0022] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0023] Embodiment 1: like Figure 1 As shown, this embodiment provides a fault slip rock burst physical simulation test and monitoring method, including: S1. Determine the content of the physical simulation test of fault slip rock burst, including prefabrication of high-impact proneness model specimens containing fault surfaces, and construction of a physical simulation test system capable of simulating fault slip rock burst.

[0024] S2. Determine the content of physical simulation monitoring of fault slip rock burst, including real-time monitoring of fault status and surrounding rock status.

[0025] S3. Prefabricate high impact tendency model specimens containing fault surfaces, including configuring simulation materials with high impact tendency, presetting fault simulation structures when casting test model specimens, and completing rapid prototyping of simulated tunnels.

[0026] It can be understood that configuring the simulation material with high impact tendency means adding the simulation material with high impact tendency near the fault of the model specimen. Optionally, a preset proportion of iron powder and mica flakes are added to the conventional materials for making the underground tunnel geotechnical model to obtain the simulation material with high impact tendency, and the obtained simulation material with high impact tendency is added near the fault position of the model specimen.

[0027] When the rapid prototyping of the simulated tunnel is completed, optionally, a simulated tunnel can be formed in the model specimen by excavating the model specimen after casting, pre-embedding a tunnel forming device during casting, or reserving a tunnel.

[0028] S4. Construct a physical simulation test system capable of simulating fault slip impact ground pressure, including a loading system that can achieve zoned continuous graded multi-gradient loading, local stable loading under disturbance conditions, and local continuous rapid loading under local load-keeping conditions; local continuous rapid loading under local load-keeping conditions is achieved to assist fault activation.

[0029] Optionally, in some embodiments, the loading system can be implemented by a conventional test device; in other embodiments, a plurality of loading cylinders can be respectively arranged at each loading surface direction of the model specimen to construct the loading system. It can be understood that the loading system and the subsequent monitoring device are both connected to a control system, and the control system can realize the control functions of data reception, data processing and related actions.

[0030] S5. Determine the real-time monitoring of the fault status, mainly including judging the overall and local deformation of the model specimen by the change of resistivity, judging the degree of fault activation by the sudden change of force of the fault slip monitoring device, and judging the local deformation of the model specimen by thermal imaging analysis.

[0031] It is understandable that different deformations of model specimens correspond to different resistivities. The relationship between the deformation of the model specimens and the resistivity can be fitted in advance based on historical data, so that the deformation of the model specimens can be directly obtained based on the resistivity during the test. The fault slip monitoring device can use force sensors, etc., which can be set at the monitoring position of the model specimen according to needs. During thermal imaging analysis, information collection and judgment can be achieved with the help of a thermal imager.

[0032] S6. Determine the real-time monitoring of the surrounding rock status, mainly including using a multi-directional stress monitoring device to monitor the surrounding rock stress in real time, using digital photography technology to capture the changes of preset points in the tunnel in real time to determine the displacement of the tunnel surrounding rock, and using a support force monitoring device to monitor the dynamic changes of the support force in real time.

[0033] This embodiment realizes the physical simulation test of fault slip impact ground pressure and the early warning monitoring of fault slip impact ground pressure. In the model specimen, the conductor is embedded according to the preset position, inclination and direction; the model specimen is loaded and tested, and when the fault needs to be activated, the conductor is energized to activate the fault; the strength of the rock mass near the fault is weakened by electrical activation, which improves the test effect and test efficiency. According to the resistivity information, force information and thermal imaging information, the deformation of the model specimen and the degree of fault activation are judged, which ensures the monitoring accuracy and provides favorable guarantee for the research of underground engineering disasters.

[0034] Optional, resistivity information: when stress is applied to the model specimen, the model specimen will deform and the resistivity will change; when the load is stable, the resistivity is stable; therefore, before the fault is activated, the resistivity is fixed, and during the fault activation process, the resistivity will increase or decrease suddenly, which is the first evaluation indicator for judging deformation and fault activation. Force information: the principle is the same as above, the collected force information will change; however, in order to avoid the influence of external factors such as voltage, mutual verification is required; during the fault activation process, the force magnitude will increase or decrease suddenly, which is the second evaluation indicator for judging deformation and fault activation. Thermal imaging: before the fault slips, due to the change in strength near the fault, the model specimen will show a slip trend, causing the surface thermal imaging to change from uniform to non-uniform, which is the third evaluation indicator for judging deformation and fault activation, which can be expressed by duration.

[0035] The above three phenomena of sudden increase or decrease in resistivity, sudden increase or decrease in force, and change of thermal imaging from uniform to non-uniform occur simultaneously, or two of them occur, or one of them is more prominent, and all of them can be judged, and the three phenomena verify each other.

[0036] In some embodiments, the comprehensive evaluation index can be determined by weighted fusion, for example, for: ; in, For the current moment The resistivity at ; The resistivity at the previous moment, the current moment and the previous moment The time interval can be preset; For the current moment The magnitude of the force at the time The magnitude of the force at the previous moment; The time it takes for the thermal imaging to change from uniform to non-uniform; To preset the duration, we can obtain it by taking the average value of the duration of each change from uniform to non-uniform in historical experiments; , and is a weight coefficient. Optionally, when at least one of the following phenomena occurs: a sudden increase or decrease in resistivity, a sudden increase or decrease in force, and a change in thermal imaging from uniform to non-uniform, there is + + =1 relationship, and the corresponding weight coefficient of the phenomenon that does not occur is 0.

[0037] In some other embodiments, , and The initial value is , and When the resistivity suddenly increases or decreases, the force suddenly increases or decreases, and the thermal image changes from uniform to non-uniform, the first evaluation index appears. , the second evaluation index And the third evaluation index If both of them are greater than the corresponding threshold, and one or two of the indicators are greater than the corresponding preset value, the corresponding weight coefficient is increased to maintain + + =1 unchanged, the corresponding preset value is greater than the corresponding threshold value; and when the three first evaluation indicators, the second evaluation indicators and the third evaluation indicators are all greater than the corresponding preset values, or are all less than the corresponding preset values, , and Initial value , and By adjusting the weight coefficients of the first evaluation index, the second evaluation index and the third evaluation index in real time, the accuracy of judging the deformation of the model specimen and the degree of fault activation can be improved.

[0038] Optionally, the deformation of the model specimen and the degree of fault activation can be evaluated based on the comprehensive evaluation index The size is determined.

[0039] In some embodiments, optionally, a fault simulation structure is prefabricated in the model specimen. In combination with the relative position of the underground project and the fault, according to the inclination, strike, angle and width of the fault, a fault simulation structure is prefabricated in the model specimen. The specific process of making a model specimen containing a fault includes: S3.1. Determine the relative position between the tunnel and the fault simulation structure; arrange the conductor at the location of the fault according to the inclination and strike, etc. The conductor may be a conductive copper wire mesh; S3.2. In the process of making the model specimen, using materials with high impact tendency, combined with the fault width and fault plane strength, using high impact tendency materials with auxiliary materials such as iron powder and mica sheets added near the conductive copper wire mesh to make a fault simulation structure; During the process of making the model specimen, iron powder, mica flakes, etc. were added to the materials near the fault simulation structure, weakening the strength of the nearby materials.

[0040] S3.3. The faults of the model specimens are activated mainly by electrical excitation and supplemented by continuous high stress loading in the slip zone, so as to achieve fault activation during the test.

[0041] During the model specimen test, when it is necessary to activate the fault, the conductive copper wire mesh is energized to further weaken the rock strength near the copper wire mesh, thereby achieving the purpose of activating the fault; optionally, the fault weakening effect is achieved by controlling the current intensity to achieve the same degree of activation as the actual fault structure.

[0042] In some embodiments, in order to ensure that the activation degree of the fault structure of the model specimen during the test is the same as the actual activation degree of the fault structure, the current intensity is adjusted in real time during the test. Optionally, in the historical data, according to the force information and deformation information related to the actual fault structure activation degree, or according to the force information and deformation information obtained in the test, data fitting is performed with time as the horizontal coordinate and force information and deformation information as the vertical coordinate. After fitting according to the force information and deformation information related to the actual fault structure activation degree, it is scaled according to the ratio between the test data to achieve the purpose of the coordinate value corresponding to the coordinate value when fitting the test data. During the test, the deformation and force conditions monitored in real time are compared with the deformation and force corresponding to the same moment in the fitting data. When the difference between the deformation or force actually monitored and the deformation or force in the fitting data is greater than the preset difference within a certain time range, the current intensity is adjusted until the difference between the deformation or force actually monitored and the deformation or force in the fitting data is within the preset difference.

[0043] It can be understood that the difference between the actual monitored deformation and the deformation in the fitting data includes negative values ​​and positive values. When compared with the preset difference, the absolute value is compared; when the difference between the actual monitored deformation and the deformation in the fitting data is negative, and the absolute value is greater than the preset difference, the current intensity is increased; when the difference between the actual monitored deformation and the deformation in the fitting data is positive and greater than the preset difference, the current intensity is reduced. Similarly, the difference between the actual monitored force and the force in the fitting data includes negative values ​​and positive values. When compared with the preset difference, the absolute value is compared; when the difference between the actual monitored force and the force in the fitting data is negative, and the absolute value is greater than the preset difference, the current intensity is increased; when the difference between the actual monitored force and the force in the fitting data is positive and greater than the preset difference, the current intensity is reduced.

[0044] Optionally, during the test, the slip area is continuously loaded with high stress, and other parts are stably loaded to achieve auxiliary fault activation.

[0045] Optionally, in the process of casting the model specimen from bottom to top, after each casting to a certain depth, the fluidity of the material within a certain distance below will decrease, so the fault is made later than the model specimen. According to the engineering overview such as the strike, dip and dip of the fault, auxiliary devices are used to lay materials such as mica sheets and iron powder in the area with low fluidity at the corresponding position, so as to reduce the strength of the rock mass at the fault position and form a weak surface.

[0046] This embodiment realizes the production of a prefabricated fault simulation structure and the activation of the fault during the test.

[0047] In some embodiments, a preset primary loading cylinder is used to directly load the model specimen, a loading plate acting on the surface of the model specimen is provided on the primary loading cylinder, and a preset secondary loader is used to compensate the primary loading cylinder. Both the primary loading cylinder and the secondary loader can be implemented by conventional loading devices, which will not be described in detail here.

[0048] Specifically, when the loading plate and the model specimen are separated due to the instantaneous deformation of the boundary between the model specimen and the first loading cylinder, the second loading device directly compensates the first loading cylinder, and promptly keeps the first loading cylinder and the model specimen in a loading state to avoid stress energy loss. The second loading device can be excited by electric induction or high-pressure gas induction.

[0049] Multiple first-level loading cylinders are preset to load different areas of the model specimen. Some first-level loading cylinders in the slip area are unloaded and withdrawn to provide slip space for the fault. The first-level loading cylinders along the fault slip direction follow up the loading force in time at the moment of fault slip and compensate.

[0050] In some embodiments, under local load-maintaining conditions, local continuous rapid loading is used to assist fault activation and carry out physical simulation tests of fault slip impact ground pressure; fault slip simulation is achieved by locally rapidly unloading the loading surface that hinders fault slip and rapidly compensating loading the local loading surface along the direction of fault slip.

[0051] Optionally, the loading surface that hinders the fault slip needs to be judged according to the actual fault slip area; some loading cylinders in the slip area are quickly unloaded and withdrawn to provide slip space for the fault. The loading surface along the fault slip direction needs to follow up the loading force in time at the moment of fault slip and compensate to avoid the problem of stress unloading and early energy release caused by slow loading, and the failure to restore the rock burst characteristics.

[0052] In some embodiments, when monitoring sudden changes in sliding force, the force generated before the fault slips cannot be measured, and a support member that can withstand large deformation is used; the support member serves as an anchoring member to connect the surrounding rocks at both ends of the fault and form an anchored rock mass. Before the fault slips, the anchoring member conforms to Newton's first law, and the force change characteristics of the anchoring member are consistent with the force change characteristics of the fault. When the fault slips, the slip characteristics conform to Newton's second law, and the stress of the anchoring member will drop rapidly to a stable value. By measuring the force and deformation characteristics on the anchoring member, the force and slip characteristics when the fault slips can be analyzed.

[0053] In some embodiments, when installing the anchoring member, a simulated tunnel is formed in the model specimen by excavating the model specimen after casting, pre-embedding a tunnel forming device during casting, or reserving a tunnel, etc. A hole is drilled from the tunnel surface in a direction perpendicular to the fault, passing through the fault, and then the anchoring member is installed to transform the simulated natural rock mass into a simulated anchored rock mass.

[0054] In some embodiments, for model specimens of contoured excavated tunnels and model specimens of pre-buried tunnel forming devices, the tunnels can be formed before the model specimens are loaded, or after applying equivalent initial geostress conditions, depending on test requirements.

[0055] Optionally, the drilling direction is determined according to the relative position of the fault and the tunnel. The drilling direction can be at a certain angle to the fault structure surface, and the optional range is 60°~90°. The anchoring end of the anchoring component needs to pass through the fault, and the anchoring method can be mechanical anchoring or cementing agent anchoring. The anchoring component needs to be made of a material with large deformation characteristics, which can avoid fracture in the early stage of fault slip, so as to avoid the monitoring data being unable to feedback the fault slip characteristics.

[0056] In some embodiments, a dynamic force monitoring element is installed at the exposed end of the anchoring member to monitor the force and deformation of the anchored rock mass, thereby monitoring the force and slip characteristics of the fault.

[0057] In some embodiments, a dynamic force monitor is installed at the exposed end of the anchoring member, and a high prestress is applied. The dynamic force monitoring element reflects the effect of the applied prestress, and at the same time, the force characteristics during the entire fault slip process are monitored.

[0058] The above description is only a preferred embodiment of the present embodiment and is not intended to limit the present embodiment. For those skilled in the art, the present embodiment may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present embodiment shall be included in the protection scope of the present embodiment.

Claims

1. A physical simulation test and monitoring method for fault slip rock burst, characterized in that: include: A model specimen is made; wherein, in the model specimen, a conductor is embedded in accordance with a preset position, inclination and direction; Carry out a loading test on the manufactured model specimen, and when the load reaches the point where fault activation is required, energize the conductor to activate the fault; Obtain the resistivity information, stress information and thermal imaging information of the model specimen during the loading process; determine the deformation of the model specimen and the degree of fault activation based on the resistivity information, stress information and thermal imaging information.

2. The fault slip rock burst physical simulation test and monitoring method according to claim 1, characterized in that: In the model specimen, the relative position between the tunnel and the fault structure is determined, and a conductive copper wire mesh is pre-buried at the location of the fault according to the inclination and strike.

3. The fault slip rock burst physical simulation test and monitoring method according to claim 1, characterized in that: In the model specimen, iron powder and mica flakes were added near the conductor.

4. The fault slip rock burst physical simulation test and monitoring method according to claim 1, characterized in that: The faults of the model specimens are activated by mainly electrical excitation and supplemented by continuous stress loading in the slip area.

5. The fault slip rock burst physical simulation test and monitoring method according to claim 1, characterized in that: The model specimen is directly loaded by a preset first-level loading cylinder, a loading plate acting on the surface of the model specimen is arranged on the first-level loading cylinder, and a preset second-level loader is used to compensate the first-level loading cylinder.

6. The fault slip rock burst physical simulation test and monitoring method according to claim 5, characterized in that: When the loading plate and the model specimen are separated due to the instantaneous deformation of the boundary between the model specimen and the first-level loading cylinder, the second-level loader directly compensates the first-level loading cylinder to keep the loading state between the first-level loading cylinder and the model specimen.

7. The fault slip rock burst physical simulation test and monitoring method according to claim 5, characterized in that: Multiple first-level loading cylinders are preset to load different areas of the model specimen, and some first-level loading cylinders in the slip area are unloaded and withdrawn to provide slip space for the fault; The first-stage loading cylinder along the fault slip direction promptly follows up the loading force and compensates at the moment of fault slip.

8. The fault slip rock burst physical simulation test and monitoring method according to claim 1, characterized in that: The fault weakening effect is adjusted by controlling the current intensity in the conductor; In the historical data, data fitting is performed with time as the horizontal axis and force information and deformation information as the vertical axis; when the difference between the actual monitored deformation and the deformation in the fitting data is a negative value, and the absolute value is greater than the preset difference, the current intensity is increased; When the difference between the deformation actually monitored and the deformation in the fitting data is positive and greater than a preset difference, the current intensity is reduced; When the difference between the actual monitored force and the force in the fitting data is a negative value, and the absolute value is greater than the preset difference, the current intensity is increased; When the difference between the actual monitored force and the force in the fitting data is positive and greater than the preset difference, the current intensity is reduced.

9. The fault slip rock burst physical simulation test and monitoring method according to claim 1, characterized in that: Determine the comprehensive evaluation index based on the resistivity information, stress information and thermal imaging information; judge the deformation of the model specimen and the degree of fault activation based on the size of the comprehensive evaluation index. for: ； in, For the current moment The resistivity at ; The resistivity at the previous moment; For the current moment The magnitude of the force at the time The magnitude of the force at the previous moment; The time it takes for the thermal imaging to change from uniform to non-uniform; The preset duration; , and is the weight coefficient; , and The initial value is , and When the resistivity suddenly increases or decreases, the force suddenly increases or decreases, and the thermal imaging changes from uniform to non-uniform, and one or two of the indicators are greater than the corresponding preset value, the corresponding weight coefficient is increased to maintain + + =1 unchanged, the corresponding preset value is greater than the corresponding threshold value; and when the three first evaluation indicators, the second evaluation indicators and the third evaluation indicators are all greater than the corresponding preset values, or are all less than the corresponding preset values, , and Initial value , and .

10. The fault slip rock burst physical simulation test and monitoring method according to claim 1, characterized in that: Through support components with deformation resistance, the surrounding rocks at both ends of the fault are connected to form an anchored rock mass; before the fault slips, the support components conform to Newton's first law, and the force change characteristics of the support components are consistent with the force change characteristics of the fault; when the fault slips, the sliding characteristics conform to Newton's second law, and the stress of the support components quickly decreases to a stable value; by measuring the force and deformation characteristics on the support components, the force and sliding characteristics during fault slip are analyzed.

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