CN-121980825-A - Method and system for analyzing stability of toughness retaining structure of debris flow retaining dam

CN121980825ACN 121980825 ACN121980825 ACN 121980825ACN-121980825-A

Abstract

According to the method and the system for analyzing the structural stability of the flexible guard of the debris flow blocking dam, the control coefficient corresponding to the structural stability element of the target flexible guard is obtained, the control coefficient comprises the coefficient optimization quantity, the second calculation coefficient is determined according to the first calculation coefficient and the control coefficient corresponding to the first debris flow impact load data, then the blocking dam structural stability analysis thread is called to generate second debris flow impact load data by utilizing the second calculation coefficient, the second debris flow impact load data is the structural stability analysis result of the first debris flow impact load data after the structural stability element of the target flexible guard is corrected, and other structural stability elements of the flexible guard except the structural stability element of the target flexible guard are maintained unchanged, so that the accuracy and the confidence of the structural stability analysis of the flexible guard are improved, and the safety of the debris flow blocking dam is ensured.

Inventors

MENG MINGHUI
YANG XUEZHI
LI TIANTAO
ZHANG XU
QIN LIANG
SUN DONG
HUANG GANG
LIU KANGLIN
LU SHUAI

Assignees

四川省华地建设工程有限责任公司
成都理工大学
四川省地质环境调查研究中心

Dates

Publication Date: 20260505
Application Date: 20260407

Claims (10)

1. The method for analyzing the structural stability of the ductile guard of the debris flow blocking dam is characterized by comprising the following steps: Obtaining mechanical stability data and structural adaptability data related to a target flexible guard structural stability element, wherein the target flexible guard structural stability element is a random one of a plurality of flexible guard structural stability elements of a target debris flow area, and the target debris flow area is a random debris flow area; Obtaining the relevance between the target debris flow area and each direction included in the calculation coefficient in the dam structure stability analysis thread; Determining a first optimization amount according to the calculation coefficient corresponding to the mechanical stability data and the calculation coefficient corresponding to the structural adaptability data, debugging the first optimization amount according to the relevance to obtain a second optimization amount, and determining the second optimization amount as a coefficient optimization amount included by the control coefficient corresponding to the structural stability element of the target flexible guard; Obtaining a control coefficient corresponding to the target flexible guard structural stability element, wherein the coefficient optimization quantity is used for correcting the direction corresponding to the target flexible guard structural stability element in a plurality of directions included in the calculation coefficient in the dam structural stability analysis thread; determining a second calculation coefficient according to a first calculation coefficient corresponding to the first debris flow impact load data and the control coefficient; And calling the dam structure stability analysis thread to generate second debris flow impact load data by using the second calculation coefficient, wherein the second debris flow impact load data is a structure stability analysis result after the target toughness guard structure stability element of the first debris flow impact load data is corrected.
2. The method of claim 1, wherein the determining a first optimization metric based on the computational coefficients corresponding to the mechanical stability data and the computational coefficients corresponding to the structural fitness data comprises: obtaining a first depolarization coefficient of a calculation coefficient corresponding to the mechanical stability data, and determining a first reference coefficient of the calculation coefficient corresponding to the mechanical stability data according to the first depolarization coefficient; Obtaining a second depolarization coefficient of the calculation coefficient corresponding to the structural adaptability data, and determining a second reference coefficient of the calculation coefficient corresponding to the structural adaptability data according to the second depolarization coefficient; and determining a first optimization quantity according to the first reference coefficient and the second reference coefficient.
3. The method according to claim 1 or 2, wherein said debugging said first optimization measure according to said correlation to obtain a second optimization measure comprises: Comparing the relevance between the target debris flow area and each direction included in the calculation coefficient in the dam structure stability analysis thread with a relevance target value; Determining a first target direction of which the corresponding relevance is smaller than or equal to the relevance target value from a plurality of directions included in the calculation coefficient; And obtaining a second optimization quantity by setting the matching degree of the first target direction in the first optimization quantity to be zero.
4. The method according to claim 1 or 2, wherein said debugging said first optimization measure according to said correlation to obtain a second optimization measure comprises: obtaining a first decision unit corresponding to the structural stability element of the target flexible guard, from a plurality of decision units included in the dam structural stability analysis thread; Determining a second target direction included in a calculation component corresponding to the first decision unit in a calculation coefficient of the dam structure stability analysis thread; determining a third target direction of which the corresponding relevance is smaller than or equal to a relevance target value from other directions except the second target direction, which are included by the calculation coefficient; And obtaining a second optimization quantity by setting the matching degree of the third target direction in the first optimization quantity to be zero.
5. The method of claim 1 or 2, wherein the method further comprises: Obtaining an example structural stability analysis result set, the example structural stability analysis result set comprising a number of example structural stability analysis results; Obtaining the characteristic variety of each debris flow area of each sample structural stability analysis result in the plurality of sample structural stability analysis results; And determining the relevance between each debris flow area and each direction included in the calculation coefficient in the dam structure stability analysis thread by utilizing the characteristic type of each debris flow area of each example structure stability analysis result.
6. The method of claim 5, wherein determining the correlation between each debris flow area and each direction included in the calculation coefficients in the dam structural stability analysis thread using the feature type of each debris flow area of each of the example structural stability analysis results comprises: Determining the characteristic type of each debris flow area of each sample structural stability analysis result as the structural stability analysis result type, and feeding back training to the calculation coefficient in the dam structural stability analysis thread to obtain the type optimization result of each debris flow area in each direction included by the calculation coefficient; Determining the relevance between each debris flow area and each direction included in the calculation coefficient in the dam structure stability analysis thread according to the relative value of the type optimization result; Wherein the obtaining the feature type of each debris flow area of each of the plurality of sample structural stability analysis results includes: calling a characteristic analysis thread to divide each of the plurality of sample structural stability analysis results into a plurality of debris flow areas; And calling the characteristic analysis thread to process each debris flow area in the plurality of debris flow areas to obtain characteristic types of each debris flow area, wherein the characteristic types comprise positioning information of the corresponding debris flow area in an example structural stability analysis result.
7. The method according to claim 1 or 2, wherein the determining a second calculation coefficient according to the control coefficient and the first calculation coefficient corresponding to the first debris flow impact load data comprises: Increasing or decreasing a coefficient optimization amount included in the control coefficient for a first calculation coefficient corresponding to the first debris flow impact load data to obtain a second calculation coefficient; The control coefficient further comprises a target calculation component, and the determining of the second calculation coefficient according to the first calculation coefficient corresponding to the first debris flow impact load data and the control coefficient comprises the following steps: Debugging a calculation component corresponding to a second decision unit in a first calculation coefficient corresponding to the first debris flow impact load data into the target calculation component to obtain a debugged first calculation coefficient, wherein the second decision unit is a decision unit related to a first decision unit corresponding to the target toughness guard structural stability element in the dam structural stability analysis thread; Increasing or decreasing the coefficient optimization amount included in the control coefficient by the debugged first calculation coefficient to obtain a second calculation coefficient; before the second calculation coefficient is determined according to the first calculation coefficient corresponding to the first debris flow impact load data and the control coefficient, the method further comprises: Obtaining a first characteristic coefficient of the target debris flow area and second characteristic coefficients of other debris flow areas except the target debris flow area by using the calculated components and the characteristic set corresponding to the second decision unit in the calculated coefficients; and correcting the calculation component corresponding to the second decision unit according to the first characteristic coefficient and the second characteristic coefficient until the first characteristic coefficient and the second characteristic coefficient meet the preset optimization requirement, so as to obtain a target calculation component.
8. The method of claim 1 or 2, wherein said invoking the dam structure stability analysis thread to generate second debris flow impact load data using the second calculation coefficients comprises: invoking the dam structure stability analysis thread to determine a calculation component corresponding to each decision unit of the dam structure stability analysis thread from the second calculation coefficients; Generating second debris flow impact load data by utilizing the calculation components and the feature sets corresponding to each decision unit; the generating the second debris flow impact load data by using the calculated components and the feature sets corresponding to each decision unit includes: starting from a first decision unit of the dam structure stability analysis thread, determining a feature set corresponding to a later decision unit by using a calculation component and a feature set corresponding to each decision unit; determining a target feature set according to the calculated component and the feature set corresponding to the last decision unit; and determining second debris flow impact load data according to the target feature set.
9. The method of claim 1 or 2, wherein the method further comprises: Obtaining an example structural stability analysis result set, the example structural stability analysis result set comprising a number of example structural stability analysis results; Correcting the plurality of sample structure stability analysis results by utilizing the positioning of the designated debris flow area to obtain a plurality of sample structure stability analysis results with corrected stability coefficients; and training the initialized generated stability checking thread by utilizing the stability coefficient corrected plurality of example structural stability analysis results to obtain a dam structural stability analysis thread.
10. A system for analysis of structural stability of a flexible retaining dam for debris flow, comprising a processor and a memory in communication with each other, the processor being adapted to read a computer program from the memory and execute the computer program to implement the method of any of claims 1-9.

Description

Method and system for analyzing stability of toughness retaining structure of debris flow retaining dam Technical Field The application relates to the technical field of stability analysis, in particular to a method and a system for analyzing the stability of a flexible retaining structure of a debris flow retaining dam. Background The debris flow is a common sudden geological disaster in mountain areas, has the characteristics of sudden outbreak, strong impact force, large destructiveness and the like, and often causes serious threat to villages and towns along the lines, traffic main lines, hydraulic engineering and the like. The blocking dam is used as a core structure of debris flow prevention engineering, and can effectively block debris flow movement, reduce debris flow energy and control siltation form, so that disaster risk is reduced. In the operation process of the retaining dam, the toe and the foundation area are continuously washed, impacted and eroded by the debris flow, and the problems of local instability, foundation void, structural cracking and the like are easy to occur. Therefore, in engineering, a retaining structure is usually arranged at the downstream of the retaining dam and on the dam foundation for diffusing the flow velocity of the debris flow, resisting impact and protecting the dam body and the foundation from stabilization. The traditional protector adopts a rigid concrete structure, although the strength is higher, the toughness is insufficient, the deformation adaptability is poor, brittle failure is easy to occur under the working condition of strong impact and large deformation, the repair difficulty is high, and the durability is difficult to guarantee. In recent years, the flexible guard with the characteristics of buffering energy absorption, deformation coordination and damage self-healing is gradually applied to debris flow blocking engineering, and the safety and durability of the whole structure under extreme load can be remarkably improved. Along with the development of engineering intellectualization and numerical simulation technology, a structural stability intelligent analysis method based on computer thread and coefficient optimization has become an important means for designing a retaining dam and a retaining net. The existing stability analysis method is mainly and directly implemented by adopting a preset impact load and a fixed calculation coefficient to carry out integral checking calculation, and has the following technical defects: The stability analysis results of the toughness guard and the blocking dam system are conservative or have potential safety hazards, and the requirements of intelligent, fine and high-reliability disaster prevention engineering design cannot be met. Therefore, there is a need for a method and a system for analyzing the structural stability of a flexible guard of a debris flow dam, which can combine a flexible guard stabilizing element, adaptively correct a calculation coefficient, and accurately regulate and control an analysis target. Disclosure of Invention In order to improve the technical problems in the related art, the application provides a method and a system for analyzing the structural stability of a ductile guard of a debris flow blocking dam. In a first aspect, a method for analyzing structural stability of a flexible retaining member of a debris flow blocking dam is provided, the method comprising: Obtaining mechanical stability data and structural adaptability data related to a target flexible guard structural stability element, wherein the target flexible guard structural stability element is a random one of a plurality of flexible guard structural stability elements of a target debris flow area, and the target debris flow area is a random debris flow area; Obtaining the relevance between the target debris flow area and each direction included in the calculation coefficient in the dam structure stability analysis thread; Determining a first optimization amount according to the calculation coefficient corresponding to the mechanical stability data and the calculation coefficient corresponding to the structural adaptability data, debugging the first optimization amount according to the relevance to obtain a second optimization amount, and determining the second optimization amount as a coefficient optimization amount included by the control coefficient corresponding to the structural stability element of the target flexible guard; Obtaining a control coefficient corresponding to the target flexible guard structural stability element, wherein the coefficient optimization quantity is used for correcting the direction corresponding to the target flexible guard structural stability element in a plurality of directions included in the calculation coefficient in the dam structural stability analysis thread; determining a second calculation coefficient according to a first calculation coefficient corresponding to the f