Analysis method and system for mutual feedback instability of extremely high and steep environmental slopes and engineering slopes

Abstract

The present invention provides an analysis method and system for the mutual feedback instability of ultra-high and steep environmental slopes and engineering slopes. By establishing a stage-by-stage model for the mutual feedback instability evolution of ultra-high and steep environmental slopes and engineering slopes, the mutual feedback instability evolution process is divided into four distinct stages: unloading damage to the engineering slope, traction deformation of the environmental slope, compression-shear instability of the engineering slope, and high-level tensile cracking and collapse of the environmental slope. The constructed action mechanism model reveals the dynamic interaction between the environmental and engineering slopes, laying a theoretical foundation for the design of coordinated prevention and control strategies for ultra-high and steep slope systems. The present invention conducts a staged development analysis of the evolution process of the mutual feedback instability of ultra-high and steep environmental slopes and engineering slopes, achieving quantification of the evolution process of the mutual feedback instability of high-steep environmental slopes and engineering slopes, providing theoretical support for the coordinated prevention and control of ultra-high and steep environmental slope systems.

Description

Technical Field

[0001] The invention belongs to the technical field of water conservancy and hydropower engineering, and relates to a slope instability analysis method and system. Background Art

[0002] Slopes are the first line of defense for hydropower projects. Slope instability often results in catastrophic consequences, including loss of life and economic losses. With the continued development of hydropower projects, construction will face an even wider range of extremely high and steep slopes, typically measuring kilometers in length. However, the mechanism of mutual instability between extremely high and steep environmental slopes and engineering slopes remains unclear. Current analyses of the evolution of this mutual instability between these two slopes are based on historical engineering experience, without quantifying the evolutionary process or analyzing its staged development. Consequently, they fail to provide a theoretical basis for the coordinated prevention and control of extremely high and steep environmental slopes. Summary of the Invention

[0003] In order to solve the problems described in the background technology that the analysis of the mutual feedback instability evolution of ultra-high and steep environmental slopes and engineering slopes is based on historical engineering experience, the mutual feedback instability evolution process is not quantified, the evolution process is not analyzed in stages, and a theoretical basis cannot be provided for the coordinated prevention and control of ultra-high and steep environmental slope systems, the present invention provides an analysis method and system for the mutual feedback instability of ultra-high and steep environmental slopes and engineering slopes.

[0004] The method of the present invention comprises:

[0005] Based on the evolution process of mutual feedback instability between ultra-high and steep environmental slopes and engineering slopes in previous projects, a stage division model for the mutual feedback instability evolution of ultra-high and steep environmental slopes and engineering slopes was established. The evolution process of mutual feedback instability was divided into four stages: unloading damage stage of engineering slope, traction deformation stage of environmental slope, compression-shear instability stage of engineering slope, and high-position tensile cracking and collapse stage of environmental slope.

[0006] Establish a model for the mechanism of engineering slope unloading pulling environmental slope deformation, and demonstrate the engineering characteristics and evolution process of the engineering slope from the unloading damage stage to the environmental slope pulling deformation stage;

[0007] Establish a model for the mechanism by which environmental slope deformation exacerbates the compressive-shear instability of engineering slopes, and demonstrate the engineering characteristics and evolution process of the environmental slope from the traction deformation stage to the compressive-shear instability stage of the engineering slope;

[0008] A mechanism model of the shear slip instability of engineering slopes triggering high-position tensile cracking and collapse of environmental slopes is established, and the engineering characteristics and evolution process of the development from the compression-shear instability stage of engineering slopes to the high-position tensile cracking and collapse stage of environmental slopes are demonstrated.

[0009] Furthermore, the mutual feedback instability evolution stage division model of the ultra-high and steep environmental slope and the engineering slope is expressed as:

[0010] (1),

[0011] Where, S The model for the evolution stage division of the mutual feedback instability of kilometer-level environmental and engineering slopes includes four subsets: S 1 This is the unloading damage stage of the engineering slope. S 2 This is the stage of environmental slope deformation due to traction. S 3 This is the stage of compression-shear instability of the engineering slope. S 4 It is the stage of high-position tensile cracking and collapse of the working environment slope.

[0012] Furthermore, the mechanism model of the engineering slope unloading traction environment slope deformation is expressed as:

[0013] (2),

[0014] Where, M(S 1 ） It is the mechanism model of engineering slope unloading traction environmental slope deformation, f 1 （） for M(S 1 ） The function corresponding to the model; x 11 The unloading damage stage of the engineering slope S 1 Developed to the stage of environmental slope traction deformation S 2 The main features of x 11 These include: tension cracks on the lower engineering slope and certain settlement on the upper environmental slope; x 12 The unloading damage stage of the engineering slope S 1 Developed to the stage of environmental slope traction deformation Segment S 2 The evolution process, x 12 Including: the excavation of the lower engineering slope causes stress release to form an unloading area. As the unloading range of the engineering slope increases, tensile cracks appear on the engineering slope. Affected by the unloading of the lower engineering slope, the yield zone of the toe of the environmental slope continues to expand, resulting in a decrease in the base support force of the environmental slope, and ultimately causing the environmental slope to deform.

[0015] Furthermore, the mechanism model of the environmental slope deformation exacerbating the compression-shear instability of the engineering slope is expressed as follows:

[0016] (3),

[0017] Where, M(S 2 ） The mechanism model of the effect of environmental slope deformation on the compression-shear instability of engineering slope is proposed. f 2 （） for M(S 2 ） The function corresponding to the model; x 21 The environmental slope is in the traction deformation stage S 2 Developed to the stage of engineering slope compression and shear instability S 3 The main features of x 21 These include: the appearance of a slip surface on the lower engineering slope and increased rock fragmentation in the shear zone at the toe of the engineering slope; x 22 The environmental slope is in the traction deformation stage S 2 Developed to the stage of engineering slope compression and shear instability S 3 The evolution process, x 22 Including: As the deformation rate of the environmental slope increases, its super-high dynamic load effect on the engineering slope will be further intensified, the shear deformation area of ​​the engineering slope will gradually penetrate, forming an overall slip surface, causing the engineering slope to become unstable.

[0018] Furthermore, the mechanism model of the shear slip instability of the engineering slope triggering the high-position tensile cracking and collapse of the environmental slope is expressed as follows:

[0019] (4),

[0020] Where, M(S 3 ） The mechanism model of shear slip instability of engineering slope triggering high-position tensile cracking and collapse of environmental slope is presented. f 3 （） for M(S 3 ） The function corresponding to the model, x 31 The engineering slope is in the compression-shear instability stage. S 3Developed to the stage of high-level cracking and collapse of environmental slope S 4 The main features of x 31 Including: the occurrence of high-level dangerous rock mass on the upper environmental slope, which causes stage-by-stage collapse and instability; x 32 The engineering slope is in the compression-shear instability stage. S 3 Developed to the stage of high-level cracking and collapse of environmental slope S 4 The evolution process, x 32 Including: the compression-shear slip instability of the lower engineering slope aggravates the loss of base support force of the upper environmental slope; the kinetic energy released by the instability backfires on the environmental slope, triggering increased deformation of the upper environmental slope and causing staged collapse and instability of the high-lying dangerous rock mass.

[0021] Based on the above method, the present invention proposes an analysis system for the mutual feedback instability of ultra-high and steep environmental slopes and engineering slopes, including a module for establishing a model for dividing the evolution stages of mutual feedback instability, a module for establishing a model for the mechanism of the unloading of engineering slopes pulling the deformation of environmental slopes, a module for establishing a model for the mechanism of the deformation of environmental slopes aggravating the compression and shear instability of engineering slopes, and a module for establishing a model for the mechanism of the shear slip instability of engineering slopes triggering high-position tensile cracking and collapse of environmental slopes.

[0022] The module for establishing a model for dividing the evolution stages of mutual feedback instability is used to establish a model for dividing the evolution stages of mutual feedback instability between ultra-high and steep environmental slopes and engineering slopes based on the evolution process of mutual feedback instability between ultra-high and steep environmental slopes and engineering slopes in past projects. The model divides the evolution process of mutual feedback instability into four stages: the unloading damage stage of the engineering slope, the traction deformation stage of the environmental slope, the compression and shear instability stage of the engineering slope, and the high-position tensile cracking and collapse stage of the environmental slope.

[0023] The module for establishing a model of the mechanism of deformation of an engineering slope caused by unloading and traction of an environmental slope is used to establish a model of the mechanism of deformation of an engineering slope caused by unloading and traction of an environmental slope, and to demonstrate the engineering characteristics and evolution process of the engineering slope from the unloading damage stage to the traction deformation stage of the environmental slope.

[0024] The module for establishing a model of the mechanism by which environmental slope deformation exacerbates the compressive shear instability of an engineering slope is used to establish a model of the mechanism by which environmental slope deformation exacerbates the compressive shear instability of an engineering slope, and to demonstrate the engineering characteristics and evolution process of the environmental slope developing from the traction deformation stage to the compressive shear instability stage of the engineering slope.

[0025] The module for establishing a model of the mechanism by which shear slip instability of an engineering slope triggers high-position tensile cracking and collapse of an environmental slope is used to establish a model of the mechanism by which shear slip instability of an engineering slope triggers high-position tensile cracking and collapse of an environmental slope, and to demonstrate the engineering characteristics and evolution process of the engineering slope from the compression-shear instability stage to the high-position tensile cracking and collapse stage of an environmental slope.

[0026] The present invention also proposes a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, the above-mentioned method for analyzing the mutual feedback instability of ultra-high and steep environmental slopes and engineering slopes is implemented.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] (1) Quantitative analysis of the evolution process of mutual feedback instability: By establishing a stage division model for the mutual feedback instability evolution of ultra-high and steep environmental slopes and engineering slopes, the mutual feedback instability evolution process is divided into four clear stages: unloading damage of the engineering slope, traction deformation of the environmental slope, compression-shear instability of the engineering slope, and high-position tensile cracking and collapse of the environmental slope. This solves the problem that traditional empirical analysis methods cannot quantify the evolution process.

[0029] (2) Revealing the mechanism of chain-type mutual feedback instability: Through the constructed action mechanism model, the three-stage chain-type instability process of ultra-high and steep slopes under strong disturbance is revealed: the unloading of the engineering slope pulls the deformation of the natural slope → the deformation of the environmental slope aggravates the compression and shear instability of the engineering slope → the instability of the engineering slope triggers the high-level collapse of the environmental slope. The main characteristics of the engineering at each stage and the mechanism model of the evolution process are constructed, providing a theoretical basis for the staged analysis of the evolution process of mutual feedback instability;

[0030] (3) Providing theoretical support for coordinated prevention and control: Through the constructed action mechanism model, the "unloading traction-deformation pressure-instability backlash" mutual feedback failure mechanism of ultra-high and steep environmental slopes and engineering slopes was demonstrated, revealing the dynamic interaction law between environmental slopes and engineering slopes, laying a theoretical foundation for the design of coordinated prevention and control strategies for ultra-high and steep slope systems;

[0031] (4) Providing systematic analysis tools: Based on the mutual feedback instability evolution stage division model and action mechanism model, an analysis system covering evolution stage division, mechanism modeling and process demonstration is formed. It can realize the dynamic simulation and visualization of the whole process of mutual feedback instability of ultra-high and steep environmental slopes and engineering slopes, and assist engineering decision-making.

[0032] In summary, the present invention reveals the three-stage chain mutual feedback instability evolution process of ultra-high and steep environmental slopes under strong disturbance, clarifies the "unloading traction-deformation pressure-instability backlash" mutual feedback instability destruction mechanism of ultra-high and steep environmental slopes and engineering slopes, conducts a staged development analysis of the evolution process, and realizes the quantification of the mutual feedback instability evolution process of high-steep environmental slopes and engineering slopes, providing theoretical support for the coordinated prevention and control of ultra-high and steep environmental slope systems. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 Flow chart of the method of the present invention.

[0034] Figure 2 This is a system architecture diagram of the present invention. DETAILED DESCRIPTION

[0035] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0036] Example 1

[0037] The analysis method of mutual feedback instability between ultra-high and steep environmental slopes and engineering slopes is as follows: Figure 1 The specific steps are as follows.

[0038] Based on the evolution process of mutual feedback instability between ultra-high and steep environmental slopes and engineering slopes in previous projects, a stage division model for the mutual feedback instability evolution of ultra-high and steep environmental slopes and engineering slopes was established, and the evolution process of mutual feedback instability was divided into four stages: unloading damage stage of engineering slope, traction deformation stage of environmental slope, compression and shear instability stage of engineering slope, and high-position tensile cracking and collapse stage of environmental slope.

[0039] Specifically, the mutual feedback instability evolution stage division model of the ultra-high and steep environmental slope and the engineering slope is expressed as:

[0040] (1),

[0041] Where, S The model for the evolution stage division of the mutual feedback instability of kilometer-level environmental and engineering slopes includes four subsets: S 1 This is the unloading damage stage of the engineering slope. S 2 This is the stage of environmental slope deformation due to traction. S 3 This is the stage of compression-shear instability of the engineering slope. S 4 It is the stage of high-position tensile cracking and collapse of the working environment slope.

[0042] A mechanism model of engineering slope unloading pulling environmental slope deformation is established, and the engineering characteristics and evolution process of the engineering slope from the unloading damage stage to the environmental slope traction deformation stage are demonstrated.

[0043] Specifically, the mechanism model of engineering slope unloading traction environmental slope deformation is expressed as:

[0044] (2),

[0045] Where, M(S 1 ） It is the mechanism model of engineering slope unloading traction environmental slope deformation, f 1 （） for M(S 1 ） The function corresponding to the model; x 11 The unloading damage stage of the engineering slope S 1 Developed to the stage of environmental slope traction deformation S 2 The main features of x 11 These include: tension cracks on the lower engineering slope and certain settlement on the upper environmental slope; x 12 The unloading damage stage of the engineering slope S 1 Developed to the stage of environmental slope traction deformation Segment S 2 The evolution process, x 12 Including: the excavation of the lower engineering slope causes stress release to form an unloading area. As the unloading range of the engineering slope increases, tensile cracks appear on the engineering slope. Affected by the unloading of the lower engineering slope, the yield zone of the toe of the environmental slope continues to expand, resulting in a decrease in the base support force of the environmental slope, and ultimately causing the environmental slope to deform.

[0046] Therefore, according to the above evolution process, corresponding engineering measures can be taken to block the unloading damage stage of the engineering slope. S 1 Stage of traction deformation of the slope towards the environment S 2 develop.

[0047] A mechanism model of how environmental slope deformation exacerbates the compression-shear instability of engineering slopes is established, and the engineering characteristics and evolution process of the environmental slope developing from the traction deformation stage to the compression-shear instability stage of the engineering slope are demonstrated.

[0048] Specifically, the mechanism model of environmental slope deformation exacerbating the compression-shear instability of engineering slopes is expressed as:

[0049] (3),

[0050] Where, M(S 2 ） The mechanism model of the effect of environmental slope deformation on the compression-shear instability of engineering slope is proposed. f 2 （） for M(S 2 ） The function corresponding to the model; x 21 The environmental slope is in the traction deformation stage S 2 Developed to the stage of engineering slope compression and shear instability S 3 The main features of x 21 These include: the appearance of a slip surface on the lower engineering slope and increased rock fragmentation in the shear zone at the toe of the engineering slope; x 22 The environmental slope is in the traction deformation stage S 2 Developed to the stage of engineering slope compression and shear instability S 3 The evolution process, x 22 Including: As the deformation rate of the environmental slope increases, its super-high dynamic load effect on the engineering slope will be further intensified, the shear deformation area of ​​the engineering slope will gradually penetrate, forming an overall slip surface, causing the engineering slope to become unstable.

[0051] Therefore, according to the above evolution process, corresponding engineering measures can be taken to block the traction deformation stage of the environmental slope. S 2 Towards the stage of engineering slope compression and shear instability S 3 develop.

[0052] A mechanism model of the shear slip instability of engineering slopes triggering high-position tensile cracking and collapse of environmental slopes is established, and the engineering characteristics and evolution process of the development from the compression-shear instability stage of engineering slopes to the high-position tensile cracking and collapse stage of environmental slopes are demonstrated.

[0053] Specifically, the mechanism model of shear slip instability of engineering slope triggering high-position tensile cracking and collapse of environmental slope is expressed as follows:

[0054] (4),

[0055] Where, M(S3 ） The mechanism model of shear slip instability of engineering slope triggering high-position tensile cracking and collapse of environmental slope is presented. f 3 （） for M(S 3 ） The function corresponding to the model, x 31 The engineering slope is in the compression-shear instability stage. S 3 Developed to the stage of high-level cracking and collapse of environmental slope S 4 The main features of x 31 Including: the occurrence of high-level dangerous rock mass on the upper environmental slope, which causes stage-by-stage collapse and instability; x 32 The engineering slope is in the compression-shear instability stage. S 3 Developed to the stage of high-level cracking and collapse of environmental slope S 4 The evolution process, x 32 Including: the compression-shear slip instability of the lower engineering slope aggravates the loss of base support force of the upper environmental slope; the kinetic energy released by the instability backfires on the environmental slope, triggering increased deformation of the upper environmental slope and causing staged collapse and instability of the high-lying dangerous rock mass.

[0056] Therefore, according to the above evolution process, corresponding engineering measures can be taken to block the compression-shear instability stage of the engineering slope. S 3 Stage of collapse towards high tensile crack of environmental slope S 4 develop.

[0057] Example 2

[0058] The analysis system for the mutual feedback instability of ultra-high and steep environmental slopes and engineering slopes is shown in the following diagram: Figure 2 As shown in the figure, it consists of a module for establishing a model for dividing the evolution stages of mutual feedback instability, a module for establishing a model for the mechanism of engineering slope unloading pulling the deformation of the environmental slope, a module for establishing a model for the mechanism of environmental slope deformation aggravating the compression and shear instability of the engineering slope, and a module for establishing a model for the mechanism of engineering slope shear slip instability triggering high-position tensile cracking and collapse of the environmental slope.

[0059] The module for establishing a model for dividing the evolution stages of mutual feedback instability is used to establish a model for dividing the evolution stages of mutual feedback instability between ultra-high and steep environmental slopes and engineering slopes based on the evolution process of mutual feedback instability between ultra-high and steep environmental slopes and engineering slopes in past projects. The model divides the evolution process of mutual feedback instability into four stages: the unloading damage stage of the engineering slope, the traction deformation stage of the environmental slope, the compression and shear instability stage of the engineering slope, and the high-position tensile cracking and collapse stage of the environmental slope.

[0060] The module for establishing the mechanism model of engineering slope unloading pulling environmental slope deformation is used to establish the mechanism model of engineering slope unloading pulling environmental slope deformation, and to demonstrate the engineering characteristics and evolution process of the engineering slope from the unloading damage stage to the environmental slope traction deformation stage.

[0061] The module for establishing a model of the mechanism by which environmental slope deformation exacerbates the compressive shear instability of engineering slopes is used to establish a model of the mechanism by which environmental slope deformation exacerbates the compressive shear instability of engineering slopes, and to demonstrate the engineering characteristics and evolution process of the environmental slope developing from the traction deformation stage to the compressive shear instability stage of the engineering slope.

[0062] The module for establishing a model of the mechanism by which shear slip instability of engineering slopes triggers high-level tensile cracking and collapse of environmental slopes is used to establish a model of the mechanism by which shear slip instability of engineering slopes triggers high-level tensile cracking and collapse of environmental slopes, and to demonstrate the engineering characteristics and evolution process of the development from the compression-shear instability stage of engineering slopes to the high-level tensile cracking and collapse stage of environmental slopes.

[0063] The specific implementation of each module in this system is consistent with that described in Example 1 and will not be repeated here.

[0064] Example 3

[0065] A computer-readable storage medium stores a computer program, which, when executed by a processor, implements the method for analyzing the mutual feedback instability of an ultra-high and steep environmental slope and an engineering slope as described in Example 1, and the system for analyzing the mutual feedback instability of an ultra-high and steep environmental slope and an engineering slope as described in Example 2.

[0066] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present application 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. The solutions in the embodiments of the present application may be implemented in various computer languages, such as object-oriented programming languages ​​Java, C++, Python, and interpreted scripting languages ​​like JavaScript.

[0067] The present application is described with reference to the flowcharts and / or block diagrams of the methods, electronic devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes 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 electronic device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing electronic device generate instructions for implementing the steps in the process. 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.

[0068] These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing electronic 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 The function specified in one or more boxes.

[0069] These computer program instructions can also be loaded onto a computer or other programmable data processing electronic device so that a series of operating steps are executed on the computer or other programmable electronic device to produce a computer-implemented process, thereby providing instructions for executing on the computer or other programmable electronic device to implement the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0070] Although the preferred embodiments of the present application have been described, those skilled in the art may make additional 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 application.

[0071] Obviously, those skilled in the art may make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalents, this application is intended to include these modifications and variations.

Claims

1. The analysis method of mutual feedback instability between extremely high and steep environmental slopes and engineering slopes is characterized by: include: Based on the evolution process of mutual feedback instability between ultra-high and steep environmental slopes and engineering slopes in previous projects, a stage division model for the mutual feedback instability evolution of ultra-high and steep environmental slopes and engineering slopes was established. The evolution process of mutual feedback instability was divided into four stages: unloading damage stage of engineering slope, traction deformation stage of environmental slope, compression and shear instability stage of engineering slope, and high-position tensile cracking and collapse stage of environmental slope. The stage division model for the mutual feedback instability evolution of ultra-high and steep environmental slopes and engineering slopes is expressed as: S=S1∪S2∪S3∪S4(1), Where S is the kilometer-scale mutual feedback instability evolution stage division model between environmental and engineering slopes, which includes four subsets: S1 is the unloading damage stage of the engineering slope, S2 is the traction deformation stage of the environmental slope, S3 is the compression and shear instability stage of the engineering slope, and S4 is the high-position tensile cracking and collapse stage of the engineering and environmental slopes. A model of the mechanism of engineering slope unloading pulling environmental slope deformation is established to demonstrate the engineering characteristics and evolution process of the engineering slope unloading damage stage to the environmental slope traction deformation stage. The mechanism model of engineering slope unloading pulling environmental slope deformation is expressed as: M(S1)=f1(x11,x12)(2), Where M(S1) is the mechanism model of slope deformation under unloading traction in engineering slope environment, f1() is the function corresponding to the M(S1) model; x 11 The main characteristics of the development from the engineering slope unloading damage stage S1 to the environmental slope traction deformation stage S2, x 11 Including: tension cracks appear on the lower engineering slope and a certain amount of settlement appears on the upper environmental slope; 12 The evolution process from the engineering slope unloading damage stage S1 to the environmental slope traction deformation stage S2, x 12 These include: excavation of the lower engineering slope causes stress release, forming an unloading area. As the unloading range of the engineering slope increases, tension cracks appear on the engineering slope. Affected by the unloading of the lower engineering slope, the yield zone at the foot of the environmental slope continues to expand, resulting in a decrease in the base support of the environmental slope, which ultimately causes deformation of the environmental slope. Establish a model for the mechanism by which environmental slope deformation exacerbates the compressive-shear instability of engineering slopes, and demonstrate the engineering characteristics and evolution process of the environmental slope from the traction deformation stage to the compressive-shear instability stage of the engineering slope; A mechanism model of the shear slip instability of engineering slopes triggering high-position tensile cracking and collapse of environmental slopes is established, and the engineering characteristics and evolution process of the development from the compression-shear instability stage of engineering slopes to the high-position tensile cracking and collapse stage of environmental slopes are demonstrated.

2. The method for analyzing the mutual feedback instability of ultra-high and steep environmental slopes and engineering slopes according to claim 1 is characterized by: The mechanism model of the environmental slope deformation exacerbating the compression-shear instability of the engineering slope is expressed as follows: Where M(S2) is the mechanism model of environmental slope deformation exacerbating the compression-shear instability of engineering slopes, f2() is the function corresponding to the M(S2) model; x 21 The main characteristics of the environmental slope developing from the traction deformation stage S2 to the engineering slope compression shear instability stage S3, x 21 Including: the appearance of a slip surface on the lower engineering slope and increased rock fragmentation in the shear zone at the foot of the engineering slope; 22 The evolution process from the environmental slope traction deformation stage S2 to the engineering slope compression shear instability stage S3, x 22 Including: As the deformation rate of the environmental slope increases, its super-high dynamic load effect on the engineering slope will be further intensified, the shear deformation area of ​​the engineering slope will gradually penetrate, forming an overall slip surface, causing the engineering slope to become unstable.

3. The method for analyzing the mutual feedback instability of ultra-high and steep environmental slopes and engineering slopes according to claim 2 is characterized by: The mechanism model of the shear slip instability of the engineering slope triggering the high-position tensile cracking and collapse of the environmental slope is expressed as follows: Where M(S3) is the mechanism model of the shear slip instability of the engineering slope triggering the high-position tensile cracking and collapse of the environmental slope, f3() is the function corresponding to the M(S3) model, and x 31 The main characteristics of the development from the engineering slope compression-shear instability stage S3 to the environmental slope high-position tensile cracking and collapse stage S4, x 31 Including: the upper environmental slope has high dangerous rock mass and has staged collapse and instability; 32 This is the evolution process from the engineering slope compression-shear instability stage S3 to the environmental slope high-position tensile cracking and collapse stage S4, x 32 Including: the compression-shear slip instability of the lower engineering slope aggravates the loss of base support force of the upper environmental slope; the kinetic energy released by the instability backfires on the environmental slope, triggering increased deformation of the upper environmental slope and causing staged collapse and instability of the high-lying dangerous rock mass.

4. An analysis system for the mutual feedback instability of ultra-high and steep environmental slopes and engineering slopes, implementing the method according to any one of claims 1 to 3, characterized in that: It includes a module for establishing a model for dividing the evolution stages of mutual feedback instability, a module for establishing a model for the mechanism by which engineering slope unloading pulls on environmental slope deformation, a module for establishing a model for the mechanism by which environmental slope deformation exacerbates engineering slope compression and shear instability, and a module for establishing a model for the mechanism by which engineering slope shear slip instability triggers high-level tensile cracking and collapse of environmental slopes. The mutual feedback instability evolution stage division model establishment module is used to establish a mutual feedback instability evolution stage division model for ultra-high and steep environmental slopes and engineering slopes based on the evolution process of mutual feedback instability between ultra-high and steep environmental slopes and engineering slopes in past projects, and divide the evolution process of mutual feedback instability into four stages: engineering slope unloading damage stage, environmental slope traction deformation stage, engineering slope compression and shear instability stage, and environmental slope high-position tensile cracking and collapse stage; The module for establishing a model of the mechanism of deformation caused by the unloading of the engineering slope and the traction of the environmental slope is used to establish a model of the mechanism of deformation caused by the unloading of the engineering slope and the traction of the environmental slope, and to demonstrate the engineering characteristics and evolution process of the engineering slope from the unloading damage stage to the traction deformation stage of the environmental slope; The module for establishing a model of the mechanism by which environmental slope deformation exacerbates the compressive shear instability of an engineering slope is used to establish a model of the mechanism by which environmental slope deformation exacerbates the compressive shear instability of an engineering slope, and to demonstrate the engineering characteristics and evolution process of the environmental slope developing from the traction deformation stage to the compressive shear instability stage of the engineering slope; The module for establishing a model of the mechanism by which shear slip instability of an engineering slope triggers high-position tensile cracking and collapse of an environmental slope is used to establish a model of the mechanism by which shear slip instability of an engineering slope triggers high-position tensile cracking and collapse of an environmental slope, and to demonstrate the engineering characteristics and evolution process of the engineering slope from the compression-shear instability stage to the high-position tensile cracking and collapse stage of an environmental slope.

5. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the method for analyzing the mutual feedback instability of an ultra-high and steep environmental slope and an engineering slope as described in any one of claims 1 to 3 is implemented.

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