Safety monitoring and evaluating method and system for compressed air energy storage power station

Abstract

The invention discloses a safety monitoring evaluation method and system for a compressed air energy storage power station, and belongs to the technical field of safety monitoring, and the method specifically comprises the steps: obtaining parameters of a target region, building a numerical calculation model, carrying out the instability simulation of the target region through the numerical calculation model, and obtaining the maximum storage pressure of the target region; setting monitoring points, and generating a curve of monitoring stress values changing along with external temperature and a curve of monitoring stress values changing along with stored air quality; recording monitoring data of the target area in the monitoring period, preprocessing the monitoring data, calculating the variance of the processed monitoring stress value, if the variance is greater than or equal to a preset threshold value, correcting the rock parameters of the target area, and correcting the maximum storage pressure of the target area based on the corrected rock-soil mechanical parameters to obtain the maximum storage pressure of the target area. And performing safety monitoring on the target area according to the maximum storage pressure, thereby realizing comprehensive monitoring and management on the safety of the target area, and ensuring the stability and safety of the target area.

Description

Technical Field

[0001] The present invention relates to the technical field of safety monitoring, and in particular to a safety monitoring and evaluation method and system for a compressed air energy storage power station. Background Art

[0002] Energy storage is the key support for building a new power system. Different energy storage technologies differ in power scale, energy storage density, cycle efficiency, response time, etc. Compressed air energy storage, as a new energy storage technology, has the characteristics of large capacity, high safety, long service life and low construction cost. It is widely used in auxiliary services such as peak shaving, frequency regulation, peak shaving and valley filling, and can effectively improve the utilization rate of new energy and reduce the phenomenon of wind and solar power abandonment.

[0003] Mines usually have large underground spaces that can be used to store compressed air without the need for additional ground construction. The geological structure of mines is usually relatively stable and suitable for long-term storage of air. Compressed air energy storage power stations built under mines can take advantage of the unique advantages of underground space, improve energy storage efficiency, reduce costs, and reduce environmental impact. It is an energy storage solution with broad application prospects. Due to the particularity of its geological conditions, stress monitoring is required to prevent the gas storage from rupturing, leaking, and other problems during use, causing serious engineering problems and safety hazards. For this reason, the safety status assessment of compressed air energy storage power stations has become an urgent problem to be solved in the development of compressed air energy storage technology. Summary of the invention

[0004] The purpose of the present invention is to provide a safety monitoring and evaluation method and system for a compressed air energy storage power station to solve the following technical problems: Mines usually have large underground spaces that can be used to store compressed air without the need for additional ground construction. The geological structure of mines is usually relatively stable and suitable for long-term storage of air. Compressed air energy storage power stations built under mines can take advantage of the unique advantages of underground space, improve energy storage efficiency, reduce costs, and reduce environmental impact. It is an energy storage solution with broad application prospects. Due to the particularity of its geological conditions, stress monitoring is required to prevent the gas storage from rupturing, leaking, and other problems during use, causing serious engineering problems and safety hazards. For this reason, the safety status assessment of compressed air energy storage power stations has become an urgent problem to be solved in the development of compressed air energy storage technology.

[0005] The purpose of the present invention can be achieved through the following technical solutions: A method for safety monitoring and evaluation of a compressed air energy storage power station, characterized in that it comprises the following steps: S1, obtaining terrain parameters, rock formation parameters, geometric parameters and rock mechanics parameters of the target area, establishing a geological model according to the terrain parameters, rock formation parameters and geometric parameters, establishing a numerical calculation grid based on the geological model, establishing a numerical calculation model based on the numerical calculation grid and rock and soil mechanics parameters, and performing instability simulation on the target area in the numerical calculation model to obtain the maximum storage pressure of the target area; The target area is a container area for storing compressed air in an air energy storage power station; S2, set monitoring points, obtain the stress values ​​of the monitoring points of the target area under different external ambient temperatures when the same air quality is stored, and generate corresponding data points in the coordinate system, fit the data points by the least squares method, the fitting formula is Q (T), and obtain the curve of stress value changing with external temperature; obtain the stress values ​​of the monitoring points of the target area with gradually increasing storage air quality under the same external ambient temperature, and generate corresponding data points in the coordinate system, fit the data points by the least squares method, the fitting formula is Q (M), and obtain the curve of stress value changing with storage air quality; S3, set a monitoring period and divide the monitoring period into n observation periods H, record the monitoring data of the target area within the monitoring period, the monitoring data including the external temperature, storage air quality and monitoring stress value, normalize the monitoring data and calculate the variance of the normalized monitoring stress value, if the variance is greater than or equal to a preset threshold, correct the rock parameters of the target area, correct the maximum storage pressure of the target area based on the corrected geotechnical parameters, and perform safety monitoring of the target area according to the maximum storage pressure.

[0006] As a further aspect of the present invention: the target area includes but is not limited to underground caves, mines and salt caverns.

[0007] As a further solution of the present invention: the geotechnical mechanics parameters include: density, elastic modulus, Poisson's ratio, cohesion, internal friction angle, tensile strength and shear dilation angle of each rock layer; the terrain parameters include surface geometry, rock layer distribution, geological structure and spatial distribution characteristics of structural surfaces; the underground goaf geometry parameters include the location, size and spatial shape of the goaf.

[0008] As a further solution of the present invention: In S3, the specific process of normalizing the monitoring data is: The reference air quality M' and the reference ambient temperature T' are preset, and the monitoring data of any observation period H are selected to obtain the monitoring stress value Q. The air quality M and the monitoring ambient temperature T are monitored and stored, and the stress value Q' within the observation period is calculated according to the preset reference air quality M' and the reference ambient temperature T' and the monitoring data. The specific calculation process is: Q'=Q(M'-M)+Q(T'-T)+Q; Among them, Q(M'-M) is the fitting formula Q(M), and Q(T'-T) is the fitting formula Q(T).

[0009] As a further solution of the present invention: in S3, the specific process of correcting the rock parameters of the target area is: Obtain the reference stress value Q' within the monitoring period and select the maximum value therefrom and mark it as MAXQ', calculate the difference between MAXQ' and the standard stress value Q'' to obtain the deviation number w; the standard stress value Q'' is determined in advance based on the preset reference air quality M' and the reference ambient temperature T'; The Mohr-Coulomb model is used to gradually increase the reduction coefficient, and the cohesion, elastic modulus and internal friction angle of the target area rock are reduced multiple times and calculated until convergence. If there is any reduction coefficient deviation score less than or equal to the preset threshold, the cohesion c′, elastic modulus e′ and internal friction angle of the target area rock under the reduction coefficient are output. ; The specific calculation process is: ; ; Where D is the reduction factor, f is the numerically calculated stress function, w is the deviation fraction, and n is the number of monitoring points.

[0010] As a further solution of the present invention: in S3, if the variance is less than a preset threshold, the normalized monitored stress values ​​within all observation periods are obtained, and corresponding data points are generated in the coordinate system. The data points are fitted by the least squares method, and the fitting formula is Q (t). The stress change curve is generated, and the monotonicity of the stress change curve is obtained. If the monotonicity is monotonically increasing, the rock parameters of the target area are corrected. If the monotonicity is monotonically decreasing, the rock parameters of the target area are not corrected.

[0011] As a further solution of the present invention: when the stress change curve does not have monotonicity, obtain the data point corresponding to the target device, and obtain the maximum value in the stress change curve ; When the maximum value Qmax is greater than the preset safety threshold, the rock parameters of the target area are corrected.

[0012] A safety monitoring and evaluation system for a compressed air energy storage power station, comprising: Data acquisition module: obtain the topographic parameters, rock formation parameters, geometric parameters and rock mechanics parameters of the target area, establish a geological model based on the topographic parameters, rock formation parameters and geometric parameters, establish a numerical calculation grid based on the geological model, establish a numerical calculation model based on the numerical calculation grid and rock and soil mechanics parameters, perform instability simulation on the target area through the numerical calculation model, and obtain the maximum storage pressure of the target area; the target area is the container area for storing compressed air of the air energy storage power station; Data analysis module: set monitoring points, obtain the stress values ​​of the monitoring points of the target area under different external ambient temperatures when storing the same air quality, generate corresponding data points in the coordinate system, fit the data points by the least squares method, the fitting formula is Q (T), and obtain the curve of stress value changing with external temperature; obtain the stress values ​​of the monitoring points of the target area with gradually increasing storage air quality under the same external ambient temperature, generate corresponding data points in the coordinate system, fit the data points by the least squares method, the fitting formula is Q (M), and obtain the curve of stress value changing with storage air quality; Result generation module: set a monitoring period and divide the monitoring period into n observation periods H, record the monitoring data of the target area within the monitoring period, the monitoring data includes the external temperature, storage air quality and monitoring stress value, normalize the monitoring data and calculate the variance of the normalized monitoring stress value, if the variance is greater than or equal to the preset threshold, correct the rock parameters of the target area, correct the maximum storage pressure of the target area based on the corrected geotechnical parameters, and perform safety monitoring of the target area according to the maximum storage pressure.

[0013] Beneficial effects of the present invention: The present invention constructs a simulation model by acquiring parameters of a target area, acquires the maximum storage pressure of the target area through the simulation model, sets monitoring points and constructs a curve showing changes in monitoring stress values ​​with external temperature and a curve showing changes in monitoring stress values ​​with storage air quality, sets a monitoring period and divides the monitoring period into n observation periods H, records monitoring data of the target area within the monitoring period, pre-processes the monitoring data and calculates the variance of the processed monitoring stress values, corrects rock parameters of the target area if the variance is greater than or equal to a preset threshold, corrects the maximum storage pressure of the target area based on the corrected geotechnical parameters, and performs safety monitoring of the target area according to the maximum storage pressure, thereby achieving comprehensive safety monitoring and management of the target area and ensuring the stability and safety of the target area. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below in conjunction with the accompanying drawings.

[0015] Figure 1It is a schematic flow chart of a safety monitoring and evaluation method for a compressed air energy storage power station of the present invention. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] See also Figure 1 As shown, the present invention is a safety monitoring and evaluation method for a compressed air energy storage power station, comprising the following steps: S1, obtaining terrain parameters, rock formation parameters, geometric parameters and rock mechanics parameters of the target area, establishing a geological model according to the terrain parameters, rock formation parameters and geometric parameters, establishing a numerical calculation grid based on the geological model, establishing a numerical calculation model based on the numerical calculation grid and rock and soil mechanics parameters, and performing instability simulation on the target area in the numerical calculation model to obtain the maximum storage pressure of the target area; The target area is a container area for storing compressed air in an air energy storage power station; S2, set monitoring points, obtain the stress values ​​of the monitoring points of the target area under different external ambient temperatures when the same air quality is stored, and generate corresponding data points in the coordinate system, fit the data points by the least squares method, the fitting formula is Q (T), and obtain the curve of stress value changing with external temperature; obtain the stress values ​​of the monitoring points of the target area with gradually increasing storage air quality under the same external ambient temperature, and generate corresponding data points in the coordinate system, fit the data points by the least squares method, the fitting formula is Q (M), and obtain the curve of stress value changing with storage air quality; S3, set a monitoring period and divide the monitoring period into n observation periods H, record the monitoring data of the target area within the monitoring period, the monitoring data including the external temperature, storage air quality and monitoring stress value, normalize the monitoring data and calculate the variance of the normalized monitoring stress value, if the variance is greater than or equal to a preset threshold, correct the rock parameters of the target area, correct the maximum storage pressure of the target area based on the corrected geotechnical parameters, and perform safety monitoring of the target area according to the maximum storage pressure.

[0018] The present invention constructs a simulation model by acquiring parameters of a target area, acquires the maximum storage pressure of the target area through the simulation model, sets monitoring points and constructs a curve showing changes in monitoring stress values ​​with external temperature and a curve showing changes in monitoring stress values ​​with storage air quality, sets a monitoring period and divides the monitoring period into n observation periods H, records monitoring data of the target area within the monitoring period, pre-processes the monitoring data and calculates the variance of the processed monitoring stress values, corrects rock parameters of the target area if the variance is greater than or equal to a preset threshold, corrects the maximum storage pressure of the target area based on the corrected geotechnical parameters, and performs safety monitoring of the target area according to the maximum storage pressure, thereby achieving comprehensive safety monitoring and management of the target area and ensuring the stability and safety of the target area.

[0019] It is worth noting that due to the frequent storage and release of compressed air in the air energy storage power station, rocks and rock masses may experience rock creep and changes in mechanical behavior, which is equivalent to a change in the material properties of a pressure storage container. Therefore, it is necessary to monitor whether the rock parameters of the target area have changed. It can be understood that when the rock parameters change, the stress value of the target area will change. Therefore, the present invention first obtains the curve of the monitored stress value changing with the external temperature and the curve of the monitored stress value changing with the stored air quality, and then obtains the monitoring data within the monitoring period and pre-processes the monitoring data and calculates the variance of the processed monitored stress value. If the variance is greater than or equal to the preset threshold, the rock parameters of the target area are corrected. It can be understood that when the variance is greater than the preset threshold, it means that there is a large fluctuation in the target area, which means that the mechanical behavior of the rock or structure in the target area has changed. Therefore, it is necessary to correct the rock parameters of the target area, and correct the maximum storage pressure of the target area based on the corrected geotechnical mechanics parameters. The target area is safely monitored according to the maximum storage pressure to prevent the gas storage from rupturing, leakage and other problems during use, causing serious engineering problems and safety hazards, and improving the safety and stability of the target area assessment.

[0020] It is worth noting that the air energy storage power station is mainly divided into two stages, namely the energy storage stage and the energy release stage. The energy storage stage is further divided into the power conversion stage, the air compression stage, the heat management stage and the air storage stage. In the present invention, data monitoring is mainly carried out on the air storage stage in the energy storage stage. It can be understood that the power conversion stage, the air compression stage and the heat management stage are storing air in the target area. At this time, the maximum storage pressure of the target area is monitored, and the process is a dynamic change. It is impossible to accurately identify whether rock creep occurs in the target area based on stress monitoring. Therefore, the application stage of the present invention is the air storage stage, and the maximum storage pressure of the target area is corrected according to the monitoring data and safety monitoring is performed.

[0021] In another preferred implementation of the present invention, the target area includes but is not limited to underground caves, mines and salt caverns.

[0022] In another preferred implementation of the present invention, the geotechnical mechanics parameters include: density, elastic modulus, Poisson's ratio, cohesion, internal friction angle, tensile strength and shear angle of each rock layer; the terrain parameters include surface geometry, rock layer distribution, geological structure and spatial distribution characteristics of structural surfaces; the underground goaf geometry parameters include the location, size and spatial shape of the goaf.

[0023] In another preferred implementation of the present invention, the specific process of normalizing the monitoring data is: The reference air quality M' and the reference ambient temperature T' are preset, and the monitoring data of any observation period H are selected to obtain the monitoring stress value Q. The air quality M and the monitoring ambient temperature T are monitored and stored, and the stress value Q' within the observation period is calculated according to the preset reference air quality M' and the reference ambient temperature T' and the monitoring data. The specific calculation process is: Q'=Q(M'-M)+Q(T'-T)+Q; Among them, Q(M'-M) is the fitting formula Q(M), and Q(T'-T) is the fitting formula Q(T).

[0024] In another preferred implementation of the present invention, in S3, the specific process of correcting the rock parameters of the target area is: Obtain the reference stress value Q' within the monitoring period and select the maximum value therefrom and mark it as MAXQ', calculate the difference between MAXQ' and the standard stress value Q'' to obtain the deviation number w; the standard stress value Q'' is determined in advance based on the preset reference air quality M' and the reference ambient temperature T'; The Mohr-Coulomb model is used to gradually increase the reduction coefficient, and the cohesion, elastic modulus and internal friction angle of the target area rock are reduced multiple times and calculated until convergence. If there is any reduction coefficient deviation score less than or equal to the preset threshold, the cohesion c′, elastic modulus e′ and internal friction angle of the target area rock under the reduction coefficient are output. ; The specific calculation process is: ; ; Where D is the reduction factor, f is the numerically calculated stress function, w is the deviation fraction, and n is the number of monitoring points.

[0025] In another preferred implementation of the present invention, in S3, if the variance is less than a preset threshold, the normalized monitored stress values ​​within all observation periods are obtained, and corresponding data points are generated in the coordinate system. The data points are fitted by the least squares method, and the fitting formula is Q (t). The stress change curve is generated, and the monotonicity of the stress change curve is obtained. If the monotonicity is monotonically increasing, the rock parameters of the target area are corrected. If the monotonicity is monotonically decreasing, the rock parameters of the target area are not corrected.

[0026] It is understandable that due to the frequent storage and release of compressed air in air energy storage power stations, rocks and rock masses may experience changes in rock creep and mechanical behavior. Therefore, the storage pressure needs to be corrected to prevent excessive storage pressure from causing problems such as rupture and penetration during operation. If the curve shows an obvious monotonic increasing or decreasing trend, this indicates that the mechanical behavior of the rock has changed. Therefore, it is necessary to correct the rock parameters in the target area and formulate the storage pressure based on the corrected rock parameters to achieve safe operation of the compressed air energy storage power station.

[0027] In another preferred embodiment of the present invention, when the stress change curve does not have monotonicity, the maximum value in the stress change curve is obtained. ; When the maximum value Qmax is greater than the preset safety threshold, the rock parameters of the target area are corrected.

[0028] It can be understood that when the variance is less than the preset threshold, it means that the overall change of the current target area is stable. When the stress change curve does not have monotonicity, it means that the mechanical behavior of the rock is more complicated and there is no simple increasing or decreasing trend or the mechanical behavior of the rock has no significant change. Therefore, the maximum value in the stress change curve is obtained. When the maximum value Qmax is greater than the preset safety threshold, it means that the rock mechanical behavior of the current target area is more complex and the rock parameters of the target area need to be corrected.

[0029] A safety monitoring and evaluation system for a compressed air energy storage power station, comprising: Data acquisition module: obtain the topographic parameters, rock formation parameters, geometric parameters and rock mechanics parameters of the target area, establish a geological model based on the topographic parameters, rock formation parameters and geometric parameters, establish a numerical calculation grid based on the geological model, establish a numerical calculation model based on the numerical calculation grid and rock and soil mechanics parameters, perform instability simulation on the target area through the numerical calculation model, and obtain the maximum storage pressure of the target area; the target area is the container area for storing compressed air of the air energy storage power station; Data analysis module: set monitoring points, obtain the stress values ​​of the monitoring points of the target area under different external ambient temperatures when storing the same air quality, generate corresponding data points in the coordinate system, fit the data points by the least squares method, the fitting formula is Q (T), and obtain the curve of stress value changing with external temperature; obtain the stress values ​​of the monitoring points of the target area with gradually increasing storage air quality under the same external ambient temperature, generate corresponding data points in the coordinate system, fit the data points by the least squares method, the fitting formula is Q (M), and obtain the curve of stress value changing with storage air quality; Result generation module: set a monitoring period and divide the monitoring period into n observation periods H, record the monitoring data of the target area within the monitoring period, the monitoring data includes the external temperature, storage air quality and monitoring stress value, normalize the monitoring data and calculate the variance of the normalized monitoring stress value, if the variance is greater than or equal to the preset threshold, correct the rock parameters of the target area, correct the maximum storage pressure of the target area based on the corrected geotechnical parameters, and perform safety monitoring of the target area according to the maximum storage pressure.

[0030] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A safety monitoring and evaluation method for a compressed air energy storage power station, characterized in that: The following steps are involved: S1, obtaining terrain parameters, rock formation parameters, geometric parameters and rock mechanics parameters of the target area, establishing a geological model according to the terrain parameters, rock formation parameters and geometric parameters, establishing a numerical calculation grid based on the geological model, establishing a numerical calculation model based on the numerical calculation grid and rock and soil mechanics parameters, and performing instability simulation on the target area in the numerical calculation model to obtain the maximum storage pressure of the target area; the target area is a container area for storing compressed air in an air energy storage power station; S2, setting monitoring points, obtaining monitoring stress values ​​of the target area under different external ambient temperatures under the same air quality, generating corresponding data points in the coordinate system, fitting the data points, and obtaining a curve of monitoring stress value changing with external temperature; Obtain the monitoring stress value of the target area gradually increasing the storage air quality under the same external environment temperature, generate corresponding data points in the coordinate system, fit the data points, the fitting formula is Q (M), and obtain the curve of the monitoring stress value changing with the storage air quality; S3, set a monitoring period and divide the monitoring period into n observation periods H, record the monitoring data of the target area within the monitoring period, the monitoring data including the external temperature, storage air quality and monitoring stress value, pre-process the monitoring data and calculate the variance of the processed monitoring stress value, if the variance is greater than or equal to a preset threshold, correct the rock parameters of the target area, correct the maximum storage pressure of the target area based on the corrected geotechnical parameters, and perform safety monitoring of the target area according to the maximum storage pressure.

2. A safety monitoring and evaluation method for a compressed air energy storage power station according to claim 1, characterized in that: The target areas include, but are not limited to, underground caves, mines, and salt caverns.

3. A safety monitoring and evaluation method for a compressed air energy storage power station according to claim 1, characterized in that: The geotechnical mechanics parameters include: density, elastic modulus, Poisson's ratio, cohesion, internal friction angle, tensile strength and shear dilation angle of each rock layer; the terrain parameters include surface geometry, rock layer distribution, geological structure and spatial distribution characteristics of structural surfaces; the underground goaf geometry parameters include the location, size and spatial shape of the goaf.

4. A safety monitoring and evaluation method for a compressed air energy storage power station according to claim 1, characterized in that: In S3, the monitoring data is preprocessed: The reference air quality M' and the reference ambient temperature T' are preset, any observation period H is selected and the monitoring data of the observation period is obtained to obtain the monitoring stress value Q, the air quality M and the monitoring ambient temperature T are monitored and stored, and the reference stress value Q' within the observation period is calculated according to the preset reference air quality M' and the reference ambient temperature T' and the monitoring data. The specific calculation process is: Q'=Q(M'-M)+Q(T'-T)+Q; Among them, Q(M'-M) is the fitting formula Q(M), and Q(T'-T) is the fitting formula Q(T).

5. A safety monitoring and evaluation method for a compressed air energy storage power station according to claim 1, characterized in that: In S3, the specific process of correcting the rock parameters of the target area is as follows: Obtain the reference stress value Q' within the monitoring period and select the maximum value therefrom and mark it as MAXQ', calculate the difference between MAXQ' and the standard stress value Q'' to obtain the deviation number w; the standard stress value Q'' is calculated in advance based on the preset reference air quality M' and the reference ambient temperature T'; The Mohr-Coulomb model is used to gradually increase the reduction coefficient, and the cohesion, elastic modulus and internal friction angle of the rock in the target area are reduced multiple times. The minimum of the two norms of the reference stress value and the standard stress value obtained by numerical calculation is used as the optimization condition for calculation until convergence, and the corrected cohesion c′, elastic modulus e′ and internal friction angle of the rock in the target area are output. ; The specific calculation process is: ； ； Where D is the reduction factor, f is the numerically calculated stress function, w is the deviation fraction, and n is the number of monitoring points.

6. A safety monitoring and evaluation method for a compressed air energy storage power station according to claim 1, characterized in that: In S3, if the variance is less than a preset threshold, the reference stress values ​​in all observation periods are obtained, and corresponding data points are generated in the coordinate system. The data points are fitted by the least squares method, and the fitting formula is Q (t). The stress change curve is generated, and the monotonicity of the stress change curve is obtained. If the stress change curve is monotonic, the rock parameters of the target area are corrected.

7. A safety monitoring and evaluation method for a compressed air energy storage power station according to claim 6, characterized in that: When the stress change curve does not have monotonicity, obtain the maximum value in the stress change curve ; When the maximum value Qmax is greater than the preset safety threshold, the rock parameters of the target area are corrected.

8. A safety monitoring and evaluation system for a compressed air energy storage power station, characterized in that: include: Data acquisition module: obtain the topographic parameters, rock formation parameters, geometric parameters and rock mechanics parameters of the target area, establish a geological model based on the topographic parameters, rock formation parameters and geometric parameters, establish a numerical calculation grid based on the geological model, establish a numerical calculation model based on the numerical calculation grid and rock and soil mechanics parameters, perform instability simulation on the target area through the numerical calculation model, and obtain the maximum storage pressure of the target area; the target area is the container area for storing compressed air of the air energy storage power station; Data analysis module: set monitoring points, obtain monitoring stress values ​​of the target area under different external ambient temperatures under the same air quality, generate corresponding data points in the coordinate system, fit the data points, and obtain a curve of monitoring stress value changing with external temperature; Obtain the monitoring stress value of the target area gradually increasing the storage air quality under the same external environment temperature, generate corresponding data points in the coordinate system, fit the data points, the fitting formula is Q (M), and obtain the curve of the monitoring stress value changing with the storage air quality; Result generation module: set a monitoring period and divide the monitoring period into n observation periods H, record the monitoring data of the target area within the monitoring period, the monitoring data includes the external temperature, storage air quality and monitoring stress value, normalize the monitoring data and calculate the variance of the normalized monitoring stress value, if the variance is greater than or equal to the preset threshold, correct the rock parameters of the target area, correct the maximum storage pressure of the target area based on the corrected geotechnical parameters, and perform safety monitoring of the target area according to the maximum storage pressure.

Images