Fault rock mass rupture early warning analysis method and system based on energy dual indexes

Abstract

The present invention discloses a fault rock mass rupture early warning analysis method and system based on energy dual indicators, belonging to the field of engineering geological detection technology. The method comprises the following steps: obtaining the elastic modulus, standard temperature, displacement threshold, displacement rate threshold, stress threshold, strain threshold, elastic strain energy threshold and dissipated energy threshold of a standard rock sample; obtaining elastic strain energy, dissipated energy, elastic strain energy index, dissipated energy index and fault rock mass rupture early warning index by obtaining and analyzing stress data, temperature, displacement, displacement rate, strain data and stress-strain curve; and performing rock rupture early warning according to the fault rock mass rupture early warning index. The present invention accurately warns of rock rupture by analyzing the elastic strain energy index, dissipated energy index and fault rock mass rupture early warning index, thereby achieving the effect of accurately conducting early warning analysis of rock rupture, and solving the problem that it is difficult to accurately conduct early warning analysis of rock rupture in the prior art.

Description

Technical Field

[0001] The present invention relates to the technical field of engineering geological detection, and in particular to a fault rock mass rupture early warning analysis method and system based on energy dual indicators. Background Art

[0002] With the development of infrastructure projects such as transportation, water conservancy and other underground caverns in recent years, the most direct materials faced are various types of rocks. External excavation disturbances cause rocks in a state of equilibrium to be easily disturbed by external forces and cause major geological disasters such as rock fracture, large deformation, and collapse. The source of disasters is generally caused by rock instability and fracture. Rock fracture is cracks generated under the action of external loads. The cracks are continuously applied to the rock to cause large-scale cracks, which in turn lead to rock instability and destruction. Therefore, effective early warning of rock fracture is of great significance to the safety of underground engineering construction.

[0003] The existing rock fracture early warning and analysis methods mainly focus on the acoustic emission precursor information warning, taking the acoustic emission wave velocity, frequency, b value, fractal dimension, RA / AF and Kaiser point as precursor indicators, and realizing the early warning and analysis functions of rock fracture through real-time monitoring and early warning of underground rock movement and potential fracture risks.

[0004] For example, the invention patent with announcement number: CN115048884B discloses a method for digitally recording rock damage and fracture under the action of seepage stress coupling, including: obtaining rock damage and fracture data of multiple historical samples, and storing the data according to a preset template to obtain a database; calculating the stability parameters of the samples according to the state variables and characteristic information of the historical samples; establishing a correlation analysis model of the characteristic information and the stability parameters; collecting the characteristic information of the working face and inputting it into the correlation analysis model to obtain the real-time stability parameter; if the real-time stability parameter is greater than the stability parameter threshold, mapping the characteristic information of the working face to the database for verification and reconstruction of the correlation analysis model.

[0005] For example, a method for constructing a rock multi-scale fracture assessment index disclosed in a patent application with publication number: CN117993238A includes: S1, establishing a yield function F based on the Mogi-Coulomb three-dimensional strength criterion; S2, constructing a rock multi-scale fracture degree assessment index formula based on the geometric relationship between the strength envelope and the yield surface of the three-dimensional strength criterion and the stress point; S3, assessing the fracture degree of the rock mass based on the range zoning of the rock multi-scale fracture degree assessment index.

[0006] However, in the process of implementing the technical solution of the invention in the embodiments of the present application, the present application found that the above technology has at least the following technical problems:

[0007] In the existing technology, since the current research on rock fracture early warning mainly uses acoustic emission sensors to monitor the sound wave signals emitted by rocks before they are destroyed, so as to predict and warn of potential dangers, the precursor indicators of this early warning method are greatly affected by external factors and are subject to large fluctuations, there is a problem that it is difficult to accurately conduct early warning analysis of rock fractures. Summary of the invention

[0008] The embodiments of the present application solve the problem in the prior art that it is difficult to accurately perform early warning analysis on rock fractures by providing a fault rock fracture early warning analysis method and system based on energy dual indicators, thereby achieving accurate early warning analysis on rock fractures.

[0009] The embodiment of the present application provides a fault rock mass rupture early warning analysis method based on energy dual indicators, comprising the following steps: obtaining the elastic modulus, standard temperature, displacement threshold, displacement rate threshold, stress threshold, strain threshold, elastic strain energy threshold and dissipated energy threshold of a standard rock sample; obtaining stress data and strain data of the rock to be tested and drawing a stress-strain curve; obtaining elastic strain energy, dissipated energy, elastic strain energy index, dissipated energy index and fault rock mass rupture early warning index by analyzing stress data, temperature, displacement, displacement rate, strain data and stress-strain curve; performing rock rupture early warning according to the elastic strain energy index, dissipated energy index and fault rock mass rupture early warning index, and the specific method for obtaining the fault rock mass rupture early warning index is: obtaining the weight ratio of the preset elastic strain energy index and the dissipated energy index from a database; constructing a fault rock mass rupture early warning index calculation formula; the specific fault rock mass rupture early warning index calculation formula is:

[0010] ;

[0011] In the formula, Expressed as Point fault rock mass rupture early warning indicators, , It is represented by the number of the corresponding points of stress data and strain data. Expressed as the total number of points corresponding to stress data and strain data, Expressed as Point elastic strain energy index, Expressed as The dissipated energy index of the point, It is expressed as the weight ratio of elastic strain energy index in fault rock mass rupture early warning index, It is expressed as the weight ratio of dissipated energy index in fault rock mass rupture warning index.

[0012] Furthermore, the stress threshold is the maximum stress value of the standard rock sample subjected to a mechanical uniaxial compression test until the standard rock sample becomes unstable and fails; the strain threshold is the maximum strain value of the standard rock sample subjected to a mechanical uniaxial compression test until the standard rock sample becomes unstable and fails; the elastic strain energy threshold is the maximum elastic strain energy of the standard rock sample subjected to a mechanical uniaxial compression test until the standard rock sample becomes unstable and fails; the dissipated energy threshold is the maximum dissipated energy of the standard rock sample subjected to a mechanical uniaxial compression test until the standard rock sample becomes unstable and fails; the displacement threshold is the maximum displacement of the standard rock sample subjected to a mechanical uniaxial compression test until the standard rock sample becomes unstable and fails; and the displacement rate threshold is the maximum displacement rate of the standard rock sample subjected to a mechanical uniaxial compression test until the standard rock sample becomes unstable and fails.

[0013] Furthermore, the specific method for obtaining the elastic strain energy index is: obtaining the number of points corresponding to stress data and strain data, and numbering the points corresponding to stress data and strain data; obtaining the preset weight ratio of strain value, temperature and displacement from the database; constructing an elastic strain energy index calculation formula; the specific elastic strain energy index calculation formula is:

[0014] ;

[0015] In the formula, Expressed as Point elastic strain energy index, , It is represented by the number of the corresponding points of stress data and strain data. Expressed as the total number of points corresponding to stress data and strain data, Expressed as the elastic strain energy threshold, Expressed as elastic modulus, It is expressed as the stress-strain curve The corresponding strain value at the point is, It is the temperature of the rock under test. It is the standard temperature of the standard rock sample test. It is expressed as the weight ratio of strain value in the elastic strain energy index. It is expressed as the weight ratio of temperature in the elastic strain energy index, It is expressed as the displacement when testing the rock. It is expressed as the displacement threshold value during the standard rock sample test, It is expressed as the weight ratio of displacement in the elastic strain energy index. is a natural constant.

[0016] Furthermore, the specific analysis process of the elastic strain energy index is as follows: obtaining the elastic strain energy index, obtaining the first threshold value of the elastic strain energy index and the second threshold value of the elastic strain energy index, comparing the elastic strain energy index with the first threshold value of the elastic strain energy index and the second threshold value of the elastic strain energy index; when the elastic strain energy index is less than the first threshold value of the elastic strain energy index and greater than the second threshold value of the elastic strain energy index, it indicates that the elastic strain energy index is in a general abnormal range, that is, the elastic strain energy of the rock to be measured is close to the elastic strain energy threshold value, that is, the elastic strain energy of the rock to be measured is in a state of being on the verge of release; when the elastic strain energy index is less than the second threshold value of the elastic strain energy index or the elastic strain energy index is greater than the first threshold value of the elastic strain energy index and the strain data is greater than the strain threshold value, it indicates that the elastic strain energy index is in a serious abnormal range, that is, the elastic strain energy of the rock to be measured is in a state of rapid release; when the elastic strain energy index is less than the second threshold value of the elastic strain energy index and the strain data is less than the strain threshold value, it indicates that the elastic strain energy index is in a normal range, that is, the elastic strain energy of the rock to be measured is less than the elastic strain energy threshold value, that is, the elastic strain energy of the rock to be measured is in an accumulated state.

[0017] Furthermore, the specific method for obtaining the dissipated energy index is: obtaining the number of points corresponding to stress data and strain data, and numbering the points corresponding to stress data and strain data; constructing a calculation formula for the dissipated energy index; the specific calculation formula for the dissipated energy index is:

[0018] ;

[0019] In the formula, Expressed as The dissipated energy index of the point, , It is represented by the number of the corresponding points of stress data and strain data. Expressed as the total number of points corresponding to stress data and strain data, Expressed as elastic modulus, It is expressed as the stress-strain curve The stress value corresponding to the point is, It is expressed as the stress-strain curve The corresponding strain value at the point is, Expressed as the dissipated energy threshold, It is expressed as the displacement rate when testing the rock to be tested, It is expressed as the displacement rate threshold value in the standard rock sample test, is a natural constant.

[0020] Furthermore, the specific analysis process of the dissipated energy index is as follows: obtaining the dissipated energy index, obtaining the first threshold value and the second threshold value of the dissipated energy index, comparing the dissipated energy index with the first threshold value and the second threshold value of the dissipated energy index, when the dissipated energy index is less than the first threshold value of the dissipated energy index and greater than the second threshold value of the dissipated energy index, it indicates that the dissipated energy index is in a general abnormal range, that is, the dissipated energy of the rock to be tested is close to the dissipated energy threshold; when the dissipated energy index is greater than the first threshold value of the dissipated energy index, it indicates that the dissipated energy index is in a serious abnormal range, that is, the dissipated energy of the rock to be tested is greater than the dissipated energy threshold, that is, the dissipated energy of the rock to be tested is in a rapid accumulation state; when in other situations, it indicates that the dissipated energy index is in a normal range, that is, the dissipated energy of the rock is less than the dissipated energy threshold, that is, the dissipated energy of the rock to be tested is in a slow accumulation state.

[0021] Furthermore, the elastic modulus is the ability of the shape and size of the rock to be tested to undergo elastic deformation when the rock to be tested is subjected to an external force.

[0022] Furthermore, the specific analysis process of the fault rock rupture warning indicator is as follows: obtaining the fault rock rupture warning indicator, obtaining the first threshold value of the fault rock rupture warning indicator and the second threshold value of the fault rock rupture warning indicator, comparing the fault rock rupture warning indicator with the first threshold value of the fault rock rupture warning indicator and the second threshold value of the fault rock rupture warning indicator; when the fault rock rupture warning indicator is less than the first threshold value of the fault rock rupture warning indicator and greater than the second threshold value of the fault rock rupture warning indicator and the strain data is less than the strain threshold value, it indicates that the fault rock rupture warning indicator is in a general abnormal range, that is, the rock to be tested is in a state of being on the verge of rupture; when the fault rock rupture warning indicator is less than the second threshold value of the fault rock rupture warning indicator or the fault rock rupture warning indicator is greater than the first threshold value and the strain data is greater than the strain threshold value, it indicates that the fault rock rupture warning indicator is in a serious abnormal range, that is, the rock to be tested is in a ruptured state; when in other situations, it indicates that the fault rock rupture warning indicator is in a normal range, that is, the rock to be tested is in a safe state.

[0023] Furthermore, the specific process of performing rock fracture early warning analysis is: when the fault rock fracture early warning index is within the normal range, the rock fracture early warning analysis system does not issue an early warning; when the fault rock fracture early warning index is within the general abnormal range, the rock fracture early warning analysis system issues a warning indication; when the fault rock fracture early warning index is within the serious abnormal range, the rock fracture early warning analysis system issues a danger indication.

[0024] The embodiment of the present application provides a fault rock rupture early warning analysis system based on energy dual indicators, including: a standard data acquisition module, a test data acquisition module, a data analysis module and an early warning module; wherein the standard data acquisition module is used to obtain the elastic modulus, standard temperature, displacement threshold, displacement rate threshold, stress threshold, strain threshold, elastic strain energy threshold and dissipated energy threshold of a standard rock sample; the test data acquisition module is used to obtain the temperature, displacement, displacement rate, stress data and strain data of the rock to be tested and draw a stress-strain curve; the data analysis module is used to obtain elastic strain energy, dissipated energy, elastic strain energy index, dissipated energy index and fault rock rupture early warning index by analyzing stress data, temperature, displacement, displacement rate, strain data and stress-strain curve; the early warning module is used to perform rock rupture early warning according to the elastic strain energy index, dissipated energy index and fault rock rupture early warning index.

[0025] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0026] 1. The temperature, displacement, displacement rate, stress data and strain data of the rock to be tested are used to obtain the stress-strain curve, thereby obtaining the elastic modulus, elastic strain energy, dissipated energy, elastic strain energy index, dissipated energy index and fault rock mass rupture early warning index, thereby realizing rock rupture early warning based on the elastic strain energy index, dissipated energy index and fault rock mass rupture early warning index, effectively solving the problem that it is difficult to accurately perform early warning analysis on rock rupture in the existing technology.

[0027] 2. The elastic strain energy index is obtained through the temperature, displacement, elastic modulus and strain data of the rock to be tested, so as to analyze the elastic strain energy index of the rock to be tested, thereby realizing the analysis of the elastic strain energy of the rock to be tested through the elastic strain energy index.

[0028] 3. The dissipated energy index is obtained through the displacement rate, elastic modulus, stress data and strain data of the rock to be tested, so as to analyze the dissipated energy index of the rock to be tested, thereby realizing the analysis of the dissipated energy of the rock to be tested through the dissipated energy index. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A flow chart of a fault rock mass rupture early warning analysis method based on energy dual indicators provided in an embodiment of the present application;

[0030] Figure 2 A fault rock mass rupture warning index curve diagram provided in the embodiment of the present application;

[0031] Figure 3 A schematic diagram of the structure of a fault rock rupture early warning analysis system based on energy dual indicators provided in an embodiment of the present application. DETAILED DESCRIPTION

[0032] The embodiments of the present application solve the problem that it is difficult to accurately perform early warning analysis on rock fractures in the prior art by providing a fault rock fracture early warning analysis method and system based on energy dual indicators. The elastic modulus, elastic strain energy, dissipated energy, elastic strain energy index, dissipated energy index and fault rock fracture early warning index are obtained by obtaining the temperature, displacement, displacement rate, stress data and strain data of the rock to be tested and the stress-strain curve, thereby obtaining the elastic modulus, elastic strain energy, dissipated energy, elastic strain energy index, dissipated energy index and fault rock fracture early warning index, thereby realizing rock fracture early warning based on the elastic strain energy index, dissipated energy index and fault rock fracture early warning index, and realizing accurate early warning analysis of rock fracture.

[0033] The technical solution in the embodiment of the present application is to solve the above-mentioned problem that it is difficult to accurately perform early warning analysis on rock fractures. The overall idea is as follows:

[0034] By obtaining the elastic modulus, standard temperature, displacement threshold, displacement rate threshold, stress threshold, strain threshold, elastic strain energy threshold and dissipated energy threshold of standard rock samples, the temperature, displacement, displacement rate, stress data and strain data of the rock to be tested are obtained and the stress-strain curve is plotted. The stress data, temperature, displacement, displacement rate, strain data and stress-strain curve are analyzed to obtain the elastic strain energy, dissipated energy, elastic strain energy index and dissipated energy index. The elastic strain energy index and the dissipated energy index are comprehensively analyzed to obtain the fault rock mass rupture early warning index. Rock rupture early warning is carried out according to the fault rock mass rupture early warning index, thereby achieving the effect of accurate early warning analysis of rock rupture.

[0035] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0036] like Figure 1As shown, it is a flow chart of the fault rock mass rupture early warning analysis method based on energy dual indicators provided in an embodiment of the present application, and the method includes the following steps: obtaining the elastic modulus, standard temperature, displacement threshold, displacement rate threshold, stress threshold, strain threshold, elastic strain energy threshold and dissipated energy threshold of a standard rock sample; obtaining the temperature, displacement, displacement rate, stress data and strain data of the rock to be tested and drawing a stress-strain curve; obtaining elastic strain energy, dissipated energy, elastic strain energy index, dissipated energy index and fault rock mass rupture early warning index by analyzing the temperature, displacement, displacement rate, force data, strain data and stress-strain curve; performing rock rupture early warning according to the elastic strain energy index, dissipated energy index and fault rock mass rupture early warning index, and the specific method for obtaining the fault rock mass rupture early warning index is: obtaining the weight ratio of the preset elastic strain energy index and the dissipated energy index from the database; constructing a calculation formula for the fault rock mass rupture early warning index; the specific calculation formula for the fault rock mass rupture early warning index is:

[0037] ;

[0038] In the formula, Expressed as Point fault rock mass rupture early warning indicators, , It is represented by the number of the corresponding points of stress data and strain data. Expressed as the total number of points corresponding to stress data and strain data, Expressed as Point elastic strain energy index, Expressed as The dissipated energy index of the point, It is expressed as the weight ratio of elastic strain energy index in fault rock mass rupture early warning index, It is expressed as the weight ratio of dissipated energy index in fault rock mass rupture warning index.

[0039] In this embodiment, the process of obtaining the standard rock sample is: obtaining a rock with the same composition as the rock to be tested, and processing it into a standard sample for the laboratory, that is, obtaining the standard rock sample.

[0040] In this embodiment, different strain data correspond to different stress data, and the process of acquiring the stress-strain curve of the rock to be tested is: in a two-dimensional image, the corresponding stress-strain curve is depicted with the strain data as the horizontal axis and the stress data corresponding to the strain data as the vertical axis.

[0041] Furthermore, the stress threshold is the maximum stress value of the standard rock sample subjected to a mechanical uniaxial compression test until the standard rock sample becomes unstable and fails; the strain threshold is the maximum strain value of the standard rock sample subjected to a mechanical uniaxial compression test until the standard rock sample becomes unstable and fails; the elastic strain energy threshold is the maximum elastic strain energy of the standard rock sample subjected to a mechanical uniaxial compression test until the standard rock sample becomes unstable and fails; the dissipated energy threshold is the maximum dissipated energy of the standard rock sample subjected to a mechanical uniaxial compression test until the standard rock sample becomes unstable and fails; the displacement threshold is the maximum displacement of the standard rock sample subjected to a mechanical uniaxial compression test until the standard rock sample becomes unstable and fails; and the displacement rate threshold is the maximum displacement rate of the standard rock sample subjected to a mechanical uniaxial compression test until the standard rock sample becomes unstable and fails.

[0042] In this embodiment, the specific process of the mechanical uniaxial compression test is: placing a standard rock sample on a rock testing machine, applying a displacement loading rate of 0.1 mm / min through the rock testing machine until the standard rock sample is unstable and damaged, obtaining the stress data and strain data of the standard rock sample during the entire destruction process, and drawing the stress-strain curve of the standard rock sample, and obtaining the elastic modulus, standard temperature, displacement threshold, displacement rate threshold, stress threshold, strain threshold, elastic strain energy threshold and dissipated energy threshold. The stress data and strain data of the standard rock sample are obtained through a universal testing machine.

[0043] In this embodiment, the stress threshold is obtained by drawing the stress-strain curve of the standard rock sample, and the maximum stress on the stress-strain curve of the standard rock sample is the stress threshold. The strain threshold is obtained by drawing the stress-strain curve of the standard rock sample, and the strain value corresponding to the stress threshold on the stress-strain curve of the standard rock sample is the strain threshold. The elastic strain energy threshold is obtained by calculating the stress threshold and the strain threshold, and the dissipated energy threshold is obtained by calculating the stress-strain curve, the stress threshold and the strain threshold of the standard rock sample.

[0044] In this embodiment, it should be noted that after the standard rock sample reaches the maximum stress value, the standard rock sample becomes unstable and breaks. At this time, the standard rock sample has been deformed. As the strain data increases, the stress required for the deformation of the standard rock sample decreases, that is, the stress data will decrease. Similarly, before the standard rock sample reaches the maximum elastic strain energy, the deformation degree of the standard rock sample increases, and thus the elastic strain energy of the standard rock sample also increases. After the maximum elastic strain energy of the standard sample rock is reached, the rock will break. After the rock breaks, the deformation ability of the standard rock sample decreases rapidly, and the elastic strain energy of the standard rock sample will be rapidly released and converted into dissipated energy. At this time, the dissipated energy will accumulate rapidly, that is, after reaching the stress threshold, the stress data will become smaller, and after reaching the elastic strain energy threshold, the elastic strain energy will become smaller, and after reaching the dissipated energy threshold, the dissipated energy will increase.

[0045] Furthermore, the specific method for obtaining the elastic strain energy index is as follows: obtaining the number of points corresponding to stress data and strain data, and numbering the points corresponding to stress data and strain data; obtaining the preset weight ratio of strain value, temperature and displacement from the database; and constructing a calculation formula for the elastic strain energy index. The specific calculation formula for the elastic strain energy index is:

[0046] ;

[0047] In the formula, Expressed as Point elastic strain energy index, , It is represented by the number of the corresponding points of stress data and strain data. Expressed as the total number of points corresponding to stress data and strain data, Expressed as the elastic strain energy threshold, Expressed as elastic modulus, It is expressed as the stress-strain curve The corresponding strain value at the point is, It is the temperature of the rock under test. It is the standard temperature of the standard rock sample test. It is expressed as the weight ratio of strain value in the elastic strain energy index. It is expressed as the weight ratio of temperature in the elastic strain energy index, It is expressed as the displacement when testing the rock. It is expressed as the displacement threshold value during the standard rock sample test, It is expressed as the weight ratio of displacement in the elastic strain energy index. is a natural constant.

[0048] In this embodiment, the specific process of obtaining the preset weight ratio of strain value, displacement and temperature from the database is: obtaining historical data related to the elastic strain energy index, finding the relationship between the strain value, displacement and temperature and the elastic strain energy index, using the nonlinear least squares method to perform curve fitting to obtain a fitting curve, and obtaining the fitting effect of the fitting curve by analyzing the root mean square error. The fitting curve with the smallest root mean square error is used as the fitting curve with the best fitting effect, and the real-time strain value and temperature are brought into the fitting curve to obtain the corresponding weight ratio.

[0049] In this embodiment, Represents the maximum elastic strain energy before rock instability and rupture, obtained by conducting a mechanical uniaxial compression test on a standard rock sample. It represents the rigidity of the rock to be tested when subjected to external force, and is obtained by conducting a mechanical uniaxial compression test on a standard rock sample. Represents the stress-strain curve The deformation degree of the rock to be tested at the point is obtained by placing a strain gauge on the rock to be tested. Represents the temperature of the rock to be tested during the test, which is obtained by placing a thermometer on the rock to be tested. It is expressed as the standard temperature of the standard rock sample during the test, obtained by placing a thermometer on the standard rock sample. Represents the displacement of the rock to be tested during the test, which is obtained through the displacement sensor. It is expressed as the displacement threshold of the standard rock sample during the test, which is obtained through the displacement sensor.

[0050] In this embodiment, the elastic strain energy is obtained by multiplying the square of the strain data and the elastic modulus and then taking the average value. The elastic strain energy and the elastic strain energy threshold are calculated to obtain the proximity between the elastic strain energy of the rock to be tested and the elastic strain energy threshold. The temperature affects the deformation capacity of the rock to be tested, thereby affecting the elastic strain energy of the rock to be tested. The displacement reflects the deformation state of the rock to be tested. This embodiment combines the elastic strain energy, displacement and temperature to obtain the elastic strain energy index. The closer the elastic strain energy of the rock to be tested is to the elastic strain energy threshold, the closer the elastic strain energy index is to 1, that is, the closer the elastic strain energy index is to the general abnormal range, that is, the closer the elastic strain energy of the rock to be tested is to the release state. This embodiment adopts a logarithmic operation method, which reduces the influence of errors, improves the stability of numerical calculations, and obtains a more accurate elastic strain energy index.

[0051] Furthermore, the specific analysis process of the elastic strain energy index is as follows: obtaining the elastic strain energy index, obtaining the first threshold value of the elastic strain energy index and the second threshold value of the elastic strain energy index, comparing the elastic strain energy index with the first threshold value of the elastic strain energy index and the second threshold value of the elastic strain energy index; when the elastic strain energy index is less than the first threshold value of the elastic strain energy index and greater than the second threshold value of the elastic strain energy index, it indicates that the elastic strain energy index is in a general abnormal range, that is, the elastic strain energy of the rock to be measured is close to the elastic strain energy threshold value, that is, the elastic strain energy of the rock to be measured is in a state of being on the verge of release; when the elastic strain energy index is less than the second threshold value of the elastic strain energy index or the elastic strain energy index is greater than the first threshold value of the elastic strain energy index and the strain data is greater than the strain threshold value, it indicates that the elastic strain energy index is in a serious abnormal range, that is, the elastic strain energy of the rock to be measured is in a state of rapid release; when the elastic strain energy index is less than the second threshold value of the elastic strain energy index and the strain data is less than the strain threshold value, it indicates that the elastic strain energy index is in a normal range, that is, the elastic strain energy of the rock to be measured is less than the elastic strain energy threshold value, that is, the elastic strain energy of the rock to be measured is in an accumulated state.

[0052] In this embodiment, historical data of the elastic strain energy indicator is obtained, and a first threshold value of the elastic strain energy indicator and a second threshold value of the elastic strain energy indicator are determined according to the historical data of the elastic strain energy indicator. The first threshold value of the elastic strain energy indicator and the second threshold value of the elastic strain energy indicator are respectively and , The value range is , The value range is , when the elastic strain energy index is less than the first threshold of the elastic strain energy index and greater than the second threshold of the elastic strain energy index, that is, , indicating that the elastic strain energy index is in the general abnormal range, that is, the elastic strain energy of the rock to be tested is close to the elastic strain energy threshold, that is, the rock to be tested is on the verge of breaking; when the strain data is greater than the strain threshold and appears or When the strain data is less than the strain threshold and If the situation is not met, it means that the elastic strain energy index is in the normal range, that is, the elastic strain energy of the rock to be tested is less than the elastic strain energy threshold, that is, the elastic strain energy of the rock to be tested is in an accumulated state, that is, the rock to be tested is in a safe state.

[0053] Furthermore, the specific method for obtaining the dissipated energy index is: obtaining the number of points corresponding to the stress data and the strain data, and numbering the points corresponding to the stress data and the strain data; constructing a calculation formula for the dissipated energy index; the specific calculation formula for the dissipated energy index is:

[0054] ;

[0055] In the formula, Expressed as The dissipated energy index of the point, , It is represented by the number of the corresponding points of stress data and strain data. Expressed as the total number of points corresponding to stress data and strain data, Expressed as elastic modulus, It is expressed as the stress-strain curve The stress value corresponding to the point is, It is expressed as the stress-strain curve The corresponding strain value at the point is, Expressed as the dissipated energy threshold, It is expressed as the displacement rate when testing the rock to be tested, It is expressed as the displacement rate threshold value in the standard rock sample test, is a natural constant.

[0056] In this embodiment, It represents the rigidity of the rock to be tested when subjected to external force, and is obtained by conducting a mechanical uniaxial compression test on a standard rock sample. Represents the stress-strain curve The magnitude of the force acting on the unit area of ​​the rock to be tested at the point is obtained by placing a strain gauge on the rock to be tested. Represents the stress-strain curve The deformation degree of the rock to be tested at the point is obtained by placing a strain gauge on the rock to be tested. Represents the maximum dissipated energy before rock instability and fracture, obtained by conducting mechanical uniaxial compression tests on standard rock samples. Represents the displacement rate of the rock to be tested when it is tested, which is obtained by the displacement sensor. It represents the displacement rate threshold of the standard rock sample during the test of the standard rock sample, which is obtained by the displacement sensor.

[0057] In this embodiment, the sum of elastic strain energy and dissipated energy is obtained by integrating the stress-strain curve of the rock to be tested, and then the elastic strain energy is subtracted to obtain the dissipated energy of the rock to be tested. The dissipated energy and the dissipated energy threshold are calculated to obtain the proximity of the dissipated energy of the rock to be tested to the dissipated energy threshold. The displacement rate also reflects the dissipated energy and the state of the rock. Adding the displacement rate of the rock to be tested can more accurately obtain the dissipated energy index. The closer the dissipated energy of the rock to be tested is to the dissipated energy threshold, the closer the displacement rate of the rock to be tested is to the displacement rate threshold of the standard sample rock, and the closer the dissipated energy index is to 1, that is, the closer the dissipated energy index is to the general abnormal range. This embodiment adopts an exponential operation method, which can smooth the influence of abnormal values, improve the stability of numerical calculations, and make the obtained dissipated energy index more reliable.

[0058] Furthermore, the specific analysis process of the dissipated energy index is as follows: obtain the dissipated energy index, obtain the first threshold value and the second threshold value of the dissipated energy index, compare the dissipated energy index with the first threshold value and the second threshold value of the dissipated energy index, when the dissipated energy index is less than the first threshold value of the dissipated energy index and greater than the second threshold value of the dissipated energy index, it indicates that the dissipated energy index is in a general abnormal range, that is, the dissipated energy of the rock to be tested is close to the dissipated energy threshold; when the dissipated energy index is greater than the first threshold value of the dissipated energy index, it indicates that the dissipated energy index is in a serious abnormal range, that is, the dissipated energy of the rock to be tested is greater than the dissipated energy threshold, that is, the dissipated energy of the rock to be tested is in a rapid accumulation state; when in other situations, it indicates that the dissipated energy index is in a normal range, that is, the dissipated energy of the rock is less than the dissipated energy threshold, that is, the dissipated energy of the rock to be tested is in a slow accumulation state.

[0059] In this embodiment, the historical data of the dissipated energy indicator is obtained, and the first threshold value of the dissipated energy indicator and the second threshold value of the dissipated energy indicator are determined according to the historical data of the dissipated energy indicator. The first threshold value of the dissipated energy indicator and the second threshold value of the dissipated energy indicator are respectively and , The value range is , The value range is , when the dissipated energy index is less than the first threshold of the dissipated energy index and greater than the second threshold of the dissipated energy index, that is, , indicating that the dissipated energy index is in the general abnormal range, that is, the dissipated energy of the rock to be tested is close to the dissipated energy threshold, that is, the rock to be tested is on the verge of breaking; when If the situation occurs, it means that the dissipated energy index is in a serious abnormal range, that is, the dissipated energy of the rock to be tested is greater than the dissipated energy threshold, that is, the dissipated energy of the rock to be tested is in a rapid accumulation state; when the strain data is less than the strain threshold and When the situation is met, it means that the dissipated energy index is in the normal range, that is, the dissipated energy of the rock is less than the dissipated energy threshold, that is, the dissipated energy of the rock to be tested is in a slowly accumulating state.

[0060] Furthermore, the elastic modulus is the ability of the rock to undergo elastic deformation in shape and size when the rock is subjected to external force.

[0061] In this embodiment, the process of obtaining the elastic modulus is as follows: by conducting a mechanical uniaxial compression test on a standard rock sample in the laboratory, the stress-strain curve of the standard demonstration sample is obtained, and the ratio of stress to strain is calculated from 0 to the part before the peak intensity of the stress-strain curve to obtain the elastic modulus.

[0062] Furthermore, the specific analysis process of the fault rock rupture warning indicator is as follows: obtaining the fault rock rupture warning indicator, obtaining the first threshold value of the fault rock rupture warning indicator and the second threshold value of the fault rock rupture warning indicator, comparing the fault rock rupture warning indicator with the first threshold value of the fault rock rupture warning indicator and the second threshold value of the fault rock rupture warning indicator; when the fault rock rupture warning indicator is less than the first threshold value of the fault rock rupture warning indicator and greater than the second threshold value of the fault rock rupture warning indicator and the strain data is less than the strain threshold value, it indicates that the fault rock rupture warning indicator is in a general abnormal range, that is, the rock to be tested is in a state of being on the verge of rupture; when the fault rock rupture warning indicator is less than the second threshold value of the fault rock rupture warning indicator or the fault rock rupture warning indicator is greater than the first threshold value and the strain data is greater than the strain threshold value, it indicates that the fault rock rupture warning indicator is in a serious abnormal range, that is, the rock to be tested is in a ruptured state; when in other situations, it indicates that the fault rock rupture warning indicator is in a normal range, that is, the rock to be tested is in a safe state.

[0063] In this embodiment, the specific process of obtaining the preset weight ratio of the elastic strain energy index and the dissipated energy index from the database is: obtaining historical data related to the fault rock rupture warning index, finding the relationship between the elastic strain energy index and the dissipated energy index and the fault rock rupture warning index, using the nonlinear least squares method to perform curve fitting to obtain a fitting curve, and obtaining the fitting effect of the fitting curve by analyzing the root mean square error. The fitting curve with the smallest root mean square error is used as the fitting curve with the best fitting effect, and the real-time elastic strain energy index and dissipated energy index are brought into the fitting curve to obtain the corresponding weight ratio.

[0064] In this embodiment, the strain data less than the strain threshold represents that the rock to be tested is in an undeformed state, that is, the rock to be tested is in an unbroken state, and the strain data greater than the strain threshold represents that the rock to be tested is in a deformed state, that is, the rock to be tested is in a broken state. Both the elastic strain energy index and the dissipated energy index reflect the fracture condition of the rock to be tested. This embodiment combines the elastic strain energy index and the dissipated energy index to better reflect the fracture condition of the rock. The above formula can smooth the influence of outliers by performing nonlinear transformation through the inverse secant function, so that the obtained fault rock fracture warning index is more reliable and explanatory.

[0065] In this embodiment, historical data of fault rock mass rupture warning indicators are obtained, and a first threshold value of the fault rock mass rupture warning indicator and a second threshold value of the fault rock mass rupture warning indicator are determined according to the historical data of the fault rock mass rupture warning indicators. The first threshold value of the fault rock mass rupture warning indicator and the second threshold value of the fault rock mass rupture warning indicator are respectively and , The value range is , The value range is , when the fault rock mass rupture warning index is less than the first threshold of the fault rock mass rupture warning index and greater than the second threshold of the fault rock mass rupture warning index, that is, , indicating that the fault rock mass rupture warning index is in the general abnormal range, that is, the rock to be tested is on the verge of rupture; when the strain data is greater than the strain threshold and appears or When the strain data is less than the strain threshold and If the fault rock rupture warning index is within the normal range, the rock to be tested is in a safe state.

[0066] like Figure 2 As shown, it is a fault rock rupture warning index curve diagram provided by the embodiment of the present application, with the elastic strain energy index as the independent variable and the fault rock rupture warning index as the dependent variable. Through the increase and decrease analysis of curves 1, 2 and 3, it can be seen that when the elastic strain energy index is larger, the fault rock rupture warning index is larger; when the elastic strain energy index is smaller, the fault rock rupture warning index is smaller. The statistical table of fault rock rupture warning index data is shown in Table 1:

[0067] Table 1 Statistical table of relevant data of fault rock mass rupture warning indicators

[0068]

[0069] It can be seen from Table 1 that for curve 1, curve 2 and curve 3, when the elastic strain energy index of curve 1, curve 2 and curve 3 is 1.00, when the dissipated energy index of curve 1, curve 2 and curve 3 is 0.80, 1.00 and 1.20 respectively, and other parameters are consistent, the dynamic permeability index of curve 1, curve 2 and curve 3 is 1.31, 1.33 and 1.35 respectively. It can be seen that when the elastic strain energy index is consistent with other parameters, the larger the dissipated energy index is, the larger the fault rock rupture warning index is.

[0070] Furthermore, the specific process of rock fracture early warning analysis is as follows: when the fault rock fracture early warning index is within the normal range, the rock fracture early warning analysis system does not issue an early warning; when the fault rock fracture early warning index is within the general abnormal range, the rock fracture early warning analysis system issues a warning indication; when the fault rock fracture early warning index is within the serious abnormal range, the rock fracture early warning analysis system issues a danger indication.

[0071] In this embodiment, when the fault rock rupture warning indicator is in the normal range, that is, the elastic strain energy is less than the elastic strain energy threshold, and the dissipated energy is less than the dissipated energy threshold, the rock is in a safe state at this time, and the rock rupture warning analysis system does not issue an early warning; when the fault rock rupture warning indicator is in the general abnormal range, that is, the elastic strain energy is close to the elastic strain energy threshold, and the dissipated energy is close to the dissipated energy threshold, the rock to be tested is in a state of being about to break, and the rock rupture early warning analysis system issues a warning indication; when the fault rock rupture warning indicator is in the serious abnormal range, that is, the elastic strain energy is less than or greater than the elastic strain energy threshold, and the dissipated energy is greater than the dissipated energy threshold, the rock to be tested is in a broken state, and the rock rupture early warning analysis system issues a danger indication.

[0072] like Figure 3 As shown, it is a structural schematic diagram of the fault rock rupture early warning analysis system based on energy dual indicators provided in an embodiment of the present application. The fault rock rupture early warning analysis system based on energy dual indicators provided in an embodiment of the present application includes: a standard data acquisition module, a test data acquisition module, a data analysis module and an early warning module; wherein the standard data acquisition module is used to obtain the elastic modulus, standard temperature, displacement threshold, displacement rate threshold, stress threshold, strain threshold, elastic strain energy threshold and dissipated energy threshold of a standard rock sample; the test data acquisition module is used to obtain the temperature, displacement, displacement rate, stress data and strain data of the rock to be tested and draw a stress-strain curve; the data analysis module is used to obtain elastic strain energy, dissipated energy, elastic strain energy index, dissipated energy index and fault rock rupture early warning index by analyzing stress data, temperature, displacement, displacement rate, strain data and stress-strain curve; the early warning module is used to perform rock rupture early warning according to the elastic strain energy index, dissipated energy index and fault rock rupture early warning index.

[0073] In summary, the embodiments of the present application obtain stress-strain curves through stress data and strain data of the rock to be tested, thereby obtaining elastic modulus, elastic strain energy, dissipated energy, elastic strain energy index, dissipated energy index and fault rock rupture warning index, and then realize rock rupture warning based on the elastic strain energy index, dissipated energy index and fault rock rupture warning index, effectively solving the problem of difficulty in accurately performing early warning analysis of rock rupture in the prior art.

[0074] It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0075] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0076] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0077] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0078] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0079] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A fault rock mass rupture early warning analysis method based on energy dual indicators, characterized in that: The following steps are involved: Obtaining the elastic modulus, standard temperature, displacement threshold, displacement rate threshold, stress threshold, strain threshold, elastic strain energy threshold and dissipated energy threshold of the standard rock sample; Obtain the temperature, displacement, displacement rate, stress data and strain data of the rock to be tested and draw the stress-strain curve; By analyzing stress data, temperature, displacement, displacement rate, strain data and stress-strain curve, elastic strain energy, dissipated energy, elastic strain energy index, dissipated energy index and fault rock mass rupture early warning index are obtained; Rock fracture warning is performed according to the elastic strain energy index, dissipated energy index and fault rock fracture warning index. The specific method for obtaining the fault rock fracture warning index is: obtaining the weight ratio of the preset elastic strain energy index and dissipated energy index from the database; constructing the fault rock fracture warning index calculation formula; the specific fault rock fracture warning index calculation formula is: ； In the formula, Expressed as Point fault rock mass rupture early warning indicators, , It is represented by the number of the corresponding points of stress data and strain data. Expressed as the total number of points corresponding to stress data and strain data, Expressed as Point elastic strain energy index, Expressed as The dissipated energy index of the point, It is expressed as the weight ratio of elastic strain energy index in fault rock mass rupture early warning index, It is expressed as the weight ratio of dissipated energy index in fault rock mass rupture early warning index; The specific method for obtaining the elastic strain energy index is: Obtain the number of points corresponding to stress data and strain data, and number the points corresponding to stress data and strain data; Obtain preset strain values, temperature and displacement weight ratios from a database; Construct the calculation formula of elastic strain energy index; The specific elastic strain energy index calculation formula is: ； In the formula, Expressed as Point elastic strain energy index, , It is represented by the number of the corresponding points of stress data and strain data. Expressed as the total number of points corresponding to stress data and strain data, Expressed as the elastic strain energy threshold, Expressed as elastic modulus, It is expressed as the stress-strain curve The corresponding strain value at the point is, It is the temperature of the rock under test. It is expressed as the standard temperature when testing the standard rock sample. It is expressed as the weight ratio of strain value in the elastic strain energy index. It is expressed as the weight ratio of temperature in the elastic strain energy index, It is expressed as the displacement when testing the rock. It is expressed as the displacement threshold value during the standard rock sample test, It is expressed as the weight ratio of displacement in the elastic strain energy index. is a natural constant; The specific method for obtaining the dissipated energy index is: Obtain the number of points corresponding to stress data and strain data, and number the points corresponding to stress data and strain data; Construct the calculation formula of dissipated energy index; The specific calculation formula for dissipated energy index is: ； In the formula, Expressed as The dissipated energy index of the point, , It is represented by the number of the corresponding points of stress data and strain data. Expressed as the total number of points corresponding to stress data and strain data, Expressed as elastic modulus, It is expressed as the stress-strain curve The stress value corresponding to the point is, It is expressed as the stress-strain curve The corresponding strain value at the point is, Expressed as the dissipated energy threshold, It is expressed as the displacement rate when testing the rock to be tested, It is expressed as the displacement rate threshold value in the standard rock sample test, is a natural constant.

2. The fault rock mass rupture early warning analysis method based on energy dual indicators as claimed in claim 1 is characterized in that: The stress threshold is the maximum stress value of a standard rock sample subjected to a mechanical uniaxial compression test until the standard rock sample becomes unstable and fails; The strain threshold is the maximum strain value of the standard rock sample subjected to a mechanical uniaxial compression test until the standard rock sample becomes unstable and fails; The elastic strain energy threshold is the maximum elastic strain energy of the standard rock sample subjected to a mechanical uniaxial compression test until the standard rock sample becomes unstable and fails; The dissipated energy threshold is the maximum dissipated energy of a standard rock sample subjected to a mechanical uniaxial compression test until the standard rock sample becomes unstable and fails; The displacement threshold is the maximum displacement of the standard rock sample subjected to a mechanical uniaxial compression test until the standard rock sample becomes unstable and fails; The displacement rate threshold is the maximum displacement rate of a standard rock sample subjected to a mechanical uniaxial compression test until the standard rock sample becomes unstable and fails.

3. The fault rock mass rupture early warning analysis method based on energy dual indicators as claimed in claim 1 is characterized in that: The specific analysis process of the elastic strain energy index is as follows: Obtaining an elastic strain energy index, obtaining a first threshold value of the elastic strain energy index and a second threshold value of the elastic strain energy index, comparing the elastic strain energy index with the first threshold value of the elastic strain energy index and the second threshold value of the elastic strain energy index, when the elastic strain energy index is less than the first threshold value of the elastic strain energy index and greater than the second threshold value of the elastic strain energy index, it indicates that the elastic strain energy index is in a general abnormal range, that is, the elastic strain energy of the rock to be measured is close to the elastic strain energy threshold value, that is, the elastic strain energy of the rock to be measured is on the verge of being released; When the elastic strain energy index is less than the second threshold value of the elastic strain energy index or the elastic strain energy index is greater than the first threshold value of the elastic strain energy index and the strain data is greater than the strain threshold value, it means that the elastic strain energy index is in a serious abnormal range, that is, the elastic strain energy of the rock to be tested is in a rapid release state; When the elastic strain energy index is less than the second threshold of the elastic strain energy index and the strain data is less than the strain threshold, it means that the elastic strain energy index is in the normal range, that is, the elastic strain energy of the rock to be tested is less than the elastic strain energy threshold, that is, the elastic strain energy of the rock to be tested is in an accumulated state.

4. The fault rock mass rupture early warning analysis method based on energy dual indicators as claimed in claim 1 is characterized in that: The specific analysis process of the dissipated energy index is as follows: Obtaining a dissipated energy index, obtaining a first threshold value and a second threshold value of the dissipated energy index, comparing the dissipated energy index with the first threshold value and the second threshold value of the dissipated energy index, when the dissipated energy index is less than the first threshold value of the dissipated energy index and greater than the second threshold value of the dissipated energy index, it indicates that the dissipated energy index is in a general abnormal range, that is, the dissipated energy of the rock to be tested is close to the dissipated energy threshold value; When the dissipated energy index is greater than the first threshold value of the dissipated energy index, it means that the dissipated energy index is in a serious abnormal range, that is, the dissipated energy of the rock to be tested is greater than the dissipated energy threshold value, that is, the dissipated energy of the rock to be tested is in a rapid accumulation state; When it is in other situations, it means that the dissipated energy index is in the normal range, that is, the dissipated energy of the rock is less than the dissipated energy threshold, that is, the dissipated energy of the rock to be tested is in a slowly accumulating state.

5. The fault rock mass rupture early warning analysis method based on energy dual indicators as claimed in claim 1 is characterized in that: The elastic modulus is the ability of the rock to undergo elastic deformation in shape and size when the rock is subjected to external force.

6. The fault rock mass rupture early warning analysis method based on energy dual indicators as claimed in claim 1 is characterized in that: The specific analysis process of the fault rock mass rupture early warning indicator is as follows: Obtaining a fault rock mass rupture warning indicator, obtaining a first threshold value of the fault rock mass rupture warning indicator and a second threshold value of the fault rock mass rupture warning indicator, comparing the fault rock mass rupture warning indicator with the first threshold value of the fault rock mass rupture warning indicator and the second threshold value of the fault rock mass rupture warning indicator, when the fault rock mass rupture warning indicator is less than the first threshold value of the fault rock mass rupture warning indicator and greater than the second threshold value of the fault rock mass rupture warning indicator and the strain data is less than the strain threshold value, it indicates that the fault rock mass rupture warning indicator is in a general abnormal range, that is, the rock to be tested is on the verge of rupture; When the fault rock mass rupture warning index is less than the second threshold value of the fault rock mass rupture warning index or the fault rock mass rupture warning index is greater than the first threshold value and the strain data is greater than the strain threshold value, it means that the fault rock mass rupture warning index is in a serious abnormal range, that is, the rock to be tested is in a rupture state; When in other situations, it means that the fault rock rupture warning index is within the normal range, that is, the rock to be tested is in a safe state.

7. The fault rock mass rupture early warning analysis method based on energy dual indicators as claimed in claim 6, characterized in that: The specific process of performing rock fracture early warning analysis is as follows: When the fault rock mass rupture warning index is within the normal range, the rock rupture warning analysis system does not issue a warning; When the fault rock mass rupture warning index is within the general abnormal range, the rock rupture warning analysis system issues a warning indication; When the fault rock rupture warning index is in a serious abnormal range, the rock rupture warning analysis system issues a danger indication.

8. A fault rock mass rupture early warning analysis system based on energy dual indicators, used to execute the fault rock mass rupture early warning analysis method based on energy dual indicators as claimed in any one of claims 1 to 7, characterized in that: include: Standard data acquisition module, test data acquisition module, data analysis module and early warning module; The standard data acquisition module is used to obtain the elastic modulus, standard temperature, displacement threshold, displacement rate threshold, stress threshold, strain threshold, elastic strain energy threshold and dissipated energy threshold of the standard rock sample; The test data acquisition module is used to acquire the temperature, displacement, displacement rate, stress data and strain data of the rock to be tested and draw a stress-strain curve; The data analysis module is used to obtain elastic strain energy, dissipated energy, elastic strain energy index, dissipated energy index and fault rock mass rupture early warning index by analyzing stress data, temperature, displacement, displacement rate, strain data and stress-strain curve; The early warning module is used to provide rock fracture early warning according to the elastic strain energy index, the dissipated energy index and the fault rock fracture early warning index.

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