Slope stability automatic analysis method based on fusion system research and development

Abstract

A slope stability automatic analysis method integrated with system research and development belongs to the field of rock mass stability analysis, and comprises research and development of a joint rose diagram automatic drawing system, research and development of a slope failure mode automatic judgment system, research and development of a wedge-shaped plane sliding failure automatic analysis system and research and development of a block toppling failure automatic analysis module. According to the invention, automatic drawing of a joint rose diagram, automatic judgment of a slope failure mode, automatic analysis of wedge-shaped plane sliding failure and automatic analysis of block toppling failure are realized. The method is intelligent in means and convenient to apply in the aspect of slope stability analysis.

Description

Technical Field

[0001] The present invention relates to a method for automatic analysis of slope stability in the research and development of a fusion system. In particular, the present invention includes the research and development of an automatic drawing system for joint rose diagrams, the research and development of an automatic judgment system for slope failure modes, the research and development of an automatic analysis system for wedge plane sliding failure, and the research and development of an automatic analysis system for block toppling failure. By combining the automatic drawing of joint rose diagrams, the automatic judgment of slope failure modes, the automatic analysis of wedge plane sliding failure, the automatic analysis of block toppling failure, and software programming research and development, a method for automatic analysis of slope stability is provided, which belongs to the field of rock mass stability analysis. Background Art

[0002] Rock masses have certain structural characteristics, which are determined by the types of joints or structural planes contained in the rock masses and their spatial distribution and combination. Structural planes are geological interfaces that divide rock masses and are important factors affecting the engineering quality of rock masses.

[0003] Due to engineering needs, the construction of some infrastructure often destroys or disturbs the originally relatively stable rock mass to a certain extent to form artificial slopes. The conditions for their instability are quite complex, and the main influencing factors include the basic characteristics of the slopes, the internal stress of the rock mass, the rock properties, the rock mass structure factors, natural factors, and engineering activities. In rock slope engineering, local failures controlled by discontinuous surfaces such as bedding planes, faults, and joints are the main failure forms of rock slopes.

[0004] Therefore, the analysis of rock slope stability can utilize macroscopic geological judgment supplemented by necessary mechanical calculation means. Macroscopic geological judgment includes the preliminary investigation of the basic characteristics of slopes, the internal stress of rock masses, the rock properties, and the rock mass structure factors, and draws joint rose diagrams through the fuzzy clustering method to obtain the occurrence distribution of joints. Combining the joint rose diagram and the stereographic projection diagram of the slope, the failure mode of the slope can be judged. Based on necessary mechanical calculation means, combined with the previous geological investigation and software programming research and development, the safety factor can be quickly calculated to obtain the stability analysis result of the slope.

[0005] Applying programming research and development to slope stability analysis can not only improve the accuracy and efficiency of the analysis, but also make the analysis more flexible and automated. Through programming, system modules including automatic drawing of joint rose diagrams, automatic judgment of slope failure modes, automatic analysis of wedge plane sliding failure, and automatic analysis of block toppling failure can be developed to quickly evaluate the stability of slopes under different working conditions. It not only improves the automation level of slope stability analysis, but also saves the time of manual calculation and improves the reliability of the results.

[0006] In view of this, the present invention proposes a method for automatic analysis of slope stability in the research and development of a fusion system. Summary of the Invention

[0007] The object of the present invention is to provide an automatic analysis method for slope stability integrating system research and development, so as to solve the problems raised in the above-mentioned background technology.

[0008] To achieve the above object, the present invention provides the following technical solutions: An automatic analysis method for slope stability integrating system research and development, the method includes the following steps: S1. Research and development of a joint rose diagram automatic drawing system, the joint rose diagram automatic drawing system includes a joint data import module, a joint clustering analysis module, a joint rose diagram drawing module, and a data output module; 1.1 Joint data import module Used to import the joint data obtained from field measurements into the software system; 1.2 Joint clustering analysis module Used to perform clustering analysis on joint data and automatically output the grouping results of structural planes. The process is as follows: According to the measured joint data, calculate the fuzzy relation matrix and similarity coefficient, then solve the closure, automatically judge the grouping of structural planes, calculate the normal vector and projection coordinates, and solve the mean value, range and probability of the joints; 1.3 Joint rose diagram drawing module, used to automatically draw the rose diagram of joints according to the joint clustering analysis results and the rose diagram drawing method; 1.4 Data output module Used to output the clustering grouping results and attitude data of joints; S2. Research and development of an automatic judgment system for slope failure modes, the research and development of the automatic judgment system for slope failure modes includes an automatic drawing module for slope stereographic projection diagrams and an automatic judgment module for slope failure modes; 2.1 Automatic drawing module for slope stereographic projection diagrams Used to input the slope rate, slope attitude, and joint attitude of the slope, and automatically draw the slope stereographic projection diagram; 2.2 Automatic judgment module for slope failure modes According to the on-site investigation, the automatic analysis of the joint rose diagram and the slope stereographic projection diagram, automatically judge whether the main failure form of the slope is wedge plane sliding failure or block toppling failure; S3. Research and development of an automatic analysis system for wedge plane sliding failure, the research and development of the automatic analysis system for wedge plane sliding failure includes a typical section drawing module and a slope stability coefficient calculation module; 3.1 Typical section drawing module Used to input the length, width, height, inclination angle, excavation surface and sliding surface parameters of the slope, and automatically draw the typical section diagram of the slope; 3.2 Slope stability coefficient calculation module According to the length, width, height, inclination angle, excavation surface, sliding surface parameters of the slope, the rock unit weight, as well as the inclination angle, area, cohesion and internal friction angle values of the joints, automatically calculate the slope stability coefficient; S4. Research and development of the automatic analysis system for block toppling failure 4.1 Automatic analysis module for block toppling failure The research and development of the automatic analysis module for block toppling failure is to automatically analyze the attitude relationship between rock strata and joints according to the joint rose diagram and the stereographic projection of the slope, and give the possible attitudes and results of rock toppling and falling.

[0009] Preferably, in the step S4, the process of researching and developing the automatic analysis system for block toppling failure is as follows: 4.1 Automatic analysis module for block toppling failure. The research and development of the automatic analysis module for block toppling failure is to automatically analyze the attitude relationship between rock strata and joints according to the joint rose diagram and the stereographic projection of the slope, and give the possible attitudes and results of rock toppling and falling.

[0010] Preferably, in the step S3, the process of researching and developing the automatic analysis system for wedge-plane sliding failure is as follows: The research and development of the automatic analysis system for wedge-plane sliding failure includes a typical section drawing module and a slope stability coefficient calculation module; 3.1 Typical section drawing module Used to input the length, width, height, inclination angle, excavation surface and sliding surface parameters of the slope, and automatically draw the typical section diagram of the slope; 3.2 Slope stability coefficient calculation module According to the length, width, height, inclination angle, excavation surface, sliding surface parameters of the slope, the rock unit weight, as well as the inclination angle, area, cohesion and internal friction angle values of the joints, automatically calculate the slope stability coefficient.

[0011] Preferably, in the step S2, the process of researching and developing the slope failure mode automatic judgment system is as follows: 2.1 Automatic drawing module for the stereographic projection of the slope Used to input the slope ratio, slope attitude, and joint attitude of the slope, and automatically draw the stereographic projection of the slope; 2.2 Automatic judgment module for the failure mode of the slope According to the on-site investigation, the automatic analysis of the joint rose diagram and the stereographic projection of the slope, automatically judge whether the main failure form of the slope is wedge-plane sliding failure or block toppling failure.

[0012] Preferably, in the step S1, the process of researching and developing the joint rose diagram automatic drawing system is as follows: The joint rose diagram automatic drawing system includes a joint data import module, a joint clustering analysis module, a joint rose diagram drawing module, and a data output module; 1.1 Joint data import module For importing the joint data obtained from field measurements into the software system; 1.2 Joint clustering analysis module For clustering and analyzing joint data and automatically outputting the grouping results of structural planes. The process is as follows: According to the measured joint data, calculate the fuzzy relation matrix and similarity coefficient, then solve the closure, automatically judge the grouping of structural planes, calculate the normal vector and projection coordinates, and solve the mean value, range and probability of joints; 1.3 Joint rose diagram drawing module For automatically drawing the joint rose diagram according to the joint clustering analysis results and the rose diagram drawing method; 1.4 Data output module For outputting the clustering grouping results and attitude data of joints.

[0013] Compared with the prior art, the beneficial effects of the present invention are: (1) An automatic analysis method for slope stability developed by a fusion system provided by the present invention realizes automatic drawing of joint rose diagrams, automatic judgment of slope failure modes, automatic analysis of wedge plane sliding failures and automatic analysis of block toppling failures; (2) An automatic analysis method for slope stability developed by a fusion system provided by the present invention has intelligent method means and is convenient to apply in slope stability analysis. Description of the drawings

[0014] Figure 1 is the flow chart of the analysis method.

[0015] Figure 2 is the joint clustering analysis diagram.

[0016] Figure 3 is the joint dip rose diagram.

[0017] Figure 4 is the stereographic projection diagram of the slope. Detailed implementation manners

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0019] Refer to Figures 1-4 , an automatic analysis method for slope stability developed by a fusion system. The flow chart of the analysis method is as Figure 1 shown and includes the following steps: S1. Development of an automatic drawing system for joint rose diagrams. The process is as follows: The automatic drawing system of joint rose diagram includes 4 modules, namely: joint data import module, joint clustering analysis module, joint rose diagram drawing module, and data output module; 1.1: Joint data import module It is used to import the structural plane data obtained from field measurement into the software system; 1.2: Joint clustering analysis module It is used to conduct clustering analysis on joint data and automatically output the grouping results of the structural plane. The process is as follows: according to the measured joint data, calculate the fuzzy relation matrix and similarity coefficient, then solve the closure, automatically judge the grouping of the structural plane, and solve the mean, range and probability of the joint.

[0020] 1.2.1: According to the measured joint data N, its fuzzy relation matrix R is: (1) 1.2.2: Calculate the similarity coefficient rij: (2) In the formula, i = 1, 2... N; j = 1, 2... N; c is a calculation parameter (0 ≤ c ≤ 1), and an appropriate c value is selected to disperse rij in [0, 1]; 1.2.3: Solve the closure t(R): (3) 1.2.4: Automatically conduct the judgment of the structural plane grouping. The process is as follows: use the fuzzy matrix multiplication operation, first take the minimum and then take the maximum; if C = AB, then the elements in C , the n-level fuzzy relation matrix R is the product of n R's. Determine the cut-off level , if in t(R) , then the structural planes i and j belong to the same class; that is (4) 1.2.5: Automatically solve the mean, range and probability of the joint, and automatically draw the joint clustering analysis diagram, as Figure 2 shown; 1.3: Joint rose diagram drawing module It is used to automatically draw the joint rose diagram according to the joint clustering analysis results and the rose diagram drawing method, as Figure 3 shown; S2. Research and development of the automatic judgment system for slope failure mode. The process is as follows: The research and development of the automatic judgment system for slope failure mode includes 2 modules, namely: the automatic drawing module of slope stereographic projection diagram and the automatic judgment module of slope failure mode; 2.1: Automatic drawing module of slope stereographic projection diagram For the slope ratio, occurrence of the slope, and occurrence of joints of the input slope, automatically draw the stereographic projection diagram of the slope, as Figure 4 shown; 2.2: Automatic failure mode judgment module of the slope Based on the on-site investigation, automatic analysis of the joint rose diagram and the stereographic diagram of the slope, automatically judge whether the main failure form of the slope is wedge-plane sliding failure or block toppling failure; S3. Research and development of the automatic analysis system for wedge-plane sliding failure, the process is as follows: The research and development of the automatic analysis system for wedge-plane sliding failure includes 2 modules, namely: the typical section drawing module and the slope stability coefficient calculation module; 3.1: Typical section drawing module For inputting the length, width, height, inclination angle, excavation surface, and sliding surface parameters of the slope, automatically draw the typical section diagram of the slope; 3.2: Slope stability coefficient calculation module According to the length, width, height, inclination angle, excavation surface, sliding surface parameters, and rock unit weight of the slope, as well as the inclination angle, area, cohesion, and internal friction angle values of the joints, automatically calculate the slope stability coefficient; 3.2.1: Under normal circumstances, the slope stability coefficient is calculated according to the following formula: (5) Where: r is the rock unit weight, z is the depth from the slope top to the landslide surface, H is the height from the landslide angle to the slope top, c is the joint cohesion, Φ is the joint internal friction angle, A is the joint area per unit length, V is the rock mass volume, Β is the joint inclination angle; 3.2.2: Under the condition of water immersion, the slope stability coefficient is calculated according to the following formula: (6) (7) (8) (9) Where: is the unit weight of water, is the joint water filling height, is the water pressure on the sliding surface, V is the water pressure in the tension joint; 3.2.3: After calculation, the safety factor K value of the slope is 1.30, which is greater than the safety factor requirement of 1.20 under normal working conditions, and the slope is stable; S4. Research and development of the automatic analysis system for block toppling failure, the process is as follows: 4.1: Automatic analysis module for block toppling failure The research and development of the automatic analysis module for block toppling failure is to automatically analyze the attitude relationship between rock strata and joints according to the joint rose diagram and the stereographic projection diagram of the slope, and give the possible attitudes and results of rock toppling and falling.

[0021] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic slope stability analysis method developed by a fusion system, characterized in that the method comprises the following steps: S1. Research and development of the joint rose diagram automatic drawing system, which includes joint data import module, joint cluster analysis module, joint rose diagram drawing module and data output module; 1.1 Joint data import module Used to import joint data obtained from field measurements into the software system; 1.2 Joint cluster analysis module It is used to cluster the joint data and automatically output the grouping results of the structural surface. The process is as follows: according to the measured data of the joints, the fuzzy relationship matrix and similarity coefficient are calculated, and then the closure is solved, the structural surface is automatically grouped and judged, the normal vector and projection coordinates are calculated, and the mean, range and probability of the joints are solved; 1.3 Joint rose diagram drawing module, used to automatically draw joint rose diagrams according to joint cluster analysis results and rose diagram drawing methods; 1.4 Data output module Used to output the clustering grouping results and occurrence data of joints; S2. Research and development of an automatic slope failure mode judgment system, which includes an automatic slope stereographic projection drawing module and an automatic slope failure mode judgment module; 2.1 Automatic drawing module of slope stereographic projection It is used to input the slope rate, slope occurrence and joint occurrence of the slope, and automatically draw the slope stereographic projection diagram; 2.2 Automatic determination module of slope failure mode Based on the on-site investigation, the automatic analysis of the joint rose diagram and the slope stereogram, it is automatically determined whether the main failure mode of the slope is wedge plane sliding failure or block dumping failure; S3. Research and development of automatic analysis system for wedge plane sliding damage, including typical profile drawing module and slope stability coefficient calculation module; 3.1 Typical profile drawing module It is used to input the length, width, height, inclination, excavation surface and sliding surface parameters of the slope, and automatically draw the typical profile of the slope; 3.2 Slope stability coefficient calculation module Automatically calculate the slope stability coefficient based on the slope's length, width, height, inclination, excavation surface, sliding surface parameters and rock weight, as well as the inclination, area, cohesion and internal friction angle of the joints; S4. Development of automatic analysis system for block collapse failure 4.1 Automatic analysis module for block collapse The automatic analysis module for block collapse is developed based on the joint rose diagram and slope stereogram, which automatically analyzes the relationship between the rock strata and joints, and gives the possible occurrence and results of rock collapse.

2. According to claim 1, the automatic slope stability analysis method developed by the fusion system is characterized in that: In step S4, the process of developing the automatic analysis system for block collapse failure is as follows: 4.1 Automatic analysis module for block collapse and failure. The automatic analysis module for block collapse and failure is developed based on the joint rose diagram and slope stereogram, which automatically analyzes the relationship between the occurrence of rock strata and joints, and gives the possible occurrence and results of rock collapse and fall.

3. The automatic slope stability analysis method developed by a fusion system according to claim 1 is characterized in that: In the step S3, the process of developing the automatic analysis system for wedge plane sliding failure is as follows: the automatic analysis system for wedge plane sliding failure development includes a typical profile drawing module and a slope stability coefficient calculation module; 3.1 Typical profile drawing module It is used to input the length, width, height, inclination, excavation surface and sliding surface parameters of the slope, and automatically draw the typical profile of the slope; 3.2 Slope stability coefficient calculation module The slope stability coefficient is automatically calculated based on the length, width, height, inclination, excavation surface, sliding surface parameters and rock weight of the slope, as well as the inclination, area, cohesion and internal friction angle of the joints.

4. The automatic slope stability analysis method developed by a fusion system according to claim 1 is characterized in that: In step S2, the process of developing the automatic slope failure mode judgment system is as follows: 2.1 Automatic drawing module of slope stereographic projection It is used to input the slope rate, slope occurrence and joint occurrence of the slope, and automatically draw the slope stereographic projection diagram; 2.2 Automatic determination module of slope failure mode Based on the on-site investigation, automatic analysis of the joint rose diagram and the slope stereogram, it is automatically determined whether the main failure form of the slope is wedge plane sliding failure or block dumping failure.

5. The automatic slope stability analysis method developed by a fusion system according to claim 1 is characterized in that: In the step S1, the process of developing the joint rose diagram automatic drawing system is as follows: the joint rose diagram automatic drawing system includes a joint data import module, a joint cluster analysis module, a joint rose diagram drawing module, and a data output module; 1.1 Joint data import module Used to import joint data obtained from field measurements into the software system; 1.2 Joint cluster analysis module It is used to cluster the joint data and automatically output the grouping results of the structural surface. The process is as follows: according to the measured data of the joints, the fuzzy relationship matrix and similarity coefficient are calculated, and then the closure is solved, the structural surface is automatically grouped and judged, the normal vector and projection coordinates are calculated, and the mean, range and probability of the joints are solved; 1.3 Joint Rose Diagram Drawing Module Used to automatically draw the rose diagram of joints according to the joint cluster analysis results and the rose diagram drawing method; 1.4 Data output module Used to output joint clustering results and occurrence data.

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