Gravity dam earthquake safety rapid evaluation method and device based on strong vibration monitoring, storage medium and electronic equipment

Abstract

The embodiment of the invention provides a gravity dam earthquake safety rapid evaluation method and device based on strong vibration monitoring, a storage medium and electronic equipment, and relates to the technical field of earthquake monitoring, and the method comprises the steps: arranging strong vibration monitoring points on a dam section of a gravity dam; when an earthquake occurs, acquiring acceleration response data at the strong vibration monitoring point; establishing a one-dimensional finite element model of the gravity dam section; calculating and analyzing based on the acceleration response data and the one-dimensional finite element model; and carrying out safety evaluation on the gravity dam based on a calculation analysis result. According to the method, the stress value of the gravity dam under the earthquake action is quickly calculated by using the monitored acceleration response data and the established one-dimensional finite element model, and then whether the gravity dam is safe or not is quickly judged according to the stress value, so that corresponding emergency measures are taken, and the method has wide application value.

Description

Technical Field

[0001] The present application relates to the technical field of earthquake monitoring, and in particular to a method, device, storage medium and electronic equipment for rapid evaluation of earthquake safety of a gravity dam based on strong vibration monitoring. Background Art

[0002] The existing strong vibration monitoring technology is to place accelerometers on the main section of the gravity dam. When an earthquake occurs, the recorder begins to record the seismic response of the dam, and can provide the acceleration time-history response curve and the maximum acceleration peak of the dam under the action of the earthquake. These monitoring data can be used for future seismic reinforcement design, but cannot quickly evaluate whether the dam is seismically safe. Summary of the invention

[0003] The embodiments of the present application provide a method, device, storage medium and electronic device for rapid evaluation of the seismic safety of a gravity dam based on strong vibration monitoring. The method can quickly give an evaluation result on whether the dam is safe.

[0004] Other features and advantages of the present application will become apparent from the following detailed description, or may be learned in part by the practice of the present application.

[0005] According to a first aspect of an embodiment of the present application, a method for rapid seismic safety assessment of a gravity dam based on strong vibration monitoring is provided, comprising:

[0006] Set up strong vibration monitoring points on the gravity dam section;

[0007] When an earthquake occurs, obtaining acceleration response data at the strong vibration monitoring point;

[0008] Establish a one-dimensional finite element model of the gravity dam section;

[0009] Performing calculation analysis based on the acceleration response data and the one-dimensional finite element model;

[0010] Safety evaluation of gravity dam is carried out based on calculation and analysis results.

[0011] In some embodiments of the present application, based on the above solution, the step of establishing a one-dimensional finite element model of a gravity dam section includes:

[0012] Calculate the characteristic parameters of the dam body: divide the dam body into n-1 dam blocks cut into n horizontal sections along the elevation, calculate the section parameters of each section, where n is an integer greater than or equal to 1; use the software to calculate the section characteristics of irregular sections with complex shapes; use the software to establish the flexibility matrix and mass matrix of the one-dimensional finite element model;

[0013] Set boundary conditions: Determine the dynamic interaction between the dam and the foundation based on the Vogt foundation coefficient method, and ignore the influence of foundation damping and mass;

[0014] Apply additional mass: Adopt the Stegaard added mass model;

[0015] Applied loads: Static and seismic loads are applied in accordance with current specifications.

[0016] In some embodiments of the present application, based on the above solution, the calculation and analysis based on the acceleration response data and the one-dimensional finite element model includes:

[0017] The acceleration response data is used as model input data and input into the one-dimensional finite element model for calculation and analysis to obtain the stress of the gravity dam under the action of an earthquake.

[0018] In some embodiments of the present application, based on the above scheme, the safety evaluation of the gravity dam based on the calculation and analysis results includes:

[0019] Comparing and judging based on the stress of the gravity dam under earthquake action and the allowable strength value of the dam concrete material;

[0020] When the stress of the gravity dam under the action of an earthquake is less than the allowable strength value of the dam-building concrete material, the gravity dam is judged to be safe.

[0021] According to a second aspect of an embodiment of the present application, a rapid seismic safety assessment device for a gravity dam based on strong vibration monitoring is provided, comprising:

[0022] A deployment unit is used to deploy strong vibration monitoring points on the gravity dam section;

[0023] An acquisition unit, used to acquire acceleration response data at the strong vibration monitoring point when an earthquake occurs;

[0024] Establishing units for establishing a one-dimensional finite element model of a gravity dam section;

[0025] A calculation and analysis unit, used for performing calculation and analysis based on the acceleration response data and the one-dimensional finite element model;

[0026] The evaluation unit is used to carry out safety evaluation of the gravity dam based on the calculation and analysis results.

[0027] According to a third aspect of an embodiment of the present application, a computer-readable storage medium is provided, wherein the storage medium stores computer instructions, and when the computer instructions are executed on a computer, the computer executes the method according to the first aspect.

[0028] According to a fourth aspect of the embodiments of the present application, there is provided an electronic device, including a memory and a processor;

[0029] The memory is used to store computer instructions;

[0030] The processor is used to call the computer instructions stored in the memory so that the electronic device executes the method as described in the first aspect.

[0031] The technical solution of the present application utilizes the monitored acceleration response data and the established one-dimensional finite element model to quickly calculate the stress value of the gravity dam under the action of earthquake, and then quickly determines whether the gravity dam is safe based on the stress value so as to take corresponding emergency measures. It has broad application value.

[0032] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present application, and together with the specification, are used to explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0034] Figure 1 A schematic flow chart of a method for rapid seismic safety assessment of a gravity dam based on strong vibration monitoring according to an embodiment of the present application is shown;

[0035] Figure 2 A schematic diagram of bottom acceleration measurement points according to an embodiment of the present application is shown;

[0036] Figure 3 A schematic diagram of acceleration response data according to an embodiment of the present application is shown;

[0037] Figure 4 A block diagram of a gravity dam seismic safety rapid assessment device based on strong vibration monitoring according to an embodiment of the present application is shown;

[0038] Figure 5 A block diagram of an electronic device according to an embodiment of the present application is shown;

[0039] Figure 6 A schematic diagram of the structure of a computer system suitable for implementing an electronic device of an embodiment of the present application is shown. DETAILED DESCRIPTION

[0040] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this application will be more comprehensive and complete and fully convey the concept of the example embodiments to those skilled in the art.

[0041] In addition, described feature, structure or characteristic can be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present application. However, those skilled in the art will appreciate that the technical scheme of the present application can be put into practice without one or more of the specific details, or other methods, components, devices, steps, etc. can be adopted. In other cases, known methods, devices, realizations or operations are not shown or described in detail to avoid blurring the various aspects of the application.

[0042] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities may be implemented in software form, or in one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.

[0043] The flowcharts shown in the accompanying drawings are only exemplary and do not necessarily include all the contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps can be decomposed, and some operations / steps can be combined or partially combined, so the actual execution order may change according to actual conditions.

[0044] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is only a part of the embodiment of the present invention, not all the embodiments. Based on the embodiment 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.

[0045] Some embodiments of the present application will be described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.

[0046] See also Figure 1 , showing a flow chart of a method for rapid seismic safety assessment of a gravity dam based on strong vibration monitoring according to an embodiment of the present application.

[0047] like Figure 1As shown, a method for rapid assessment of seismic safety of a gravity dam based on strong vibration monitoring is presented, including steps S100 to S500.

[0048] refer to Figure 1 , step S100, setting up strong vibration monitoring points on the gravity dam section.

[0049] It should be noted that in this embodiment, monitoring points are mainly set at the bottom of the gravity dam section, for example Figure 2 As shown in FIG. 1 , acceleration measuring points are set at the bottom of the gravity dam section to obtain acceleration response data.

[0050] Continue to refer Figure 1 , step S200, when an earthquake occurs, obtaining acceleration response data at the strong vibration monitoring point.

[0051] For example, the acquired acceleration response data is as follows: Figure 3 As shown, the acquired acceleration response data is used as the input of the model.

[0052] Continue to refer Figure 1 , step S300, establishing a one-dimensional finite element model of the gravity dam section.

[0053] It should be noted that this embodiment converts the complex three-dimensional finite element concrete gravity dam model into a one-dimensional finite element model for analysis by refining the core mechanical characteristics of the gravity dam, thereby speeding up the analysis and calculation process.

[0054] In some feasible embodiments, based on the above scheme, the step of establishing a one-dimensional finite element model of the gravity dam section includes:

[0055] Calculate the characteristic parameters of the dam body: divide the dam body into n-1 dam blocks cut into n horizontal sections along the elevation, calculate the section parameters of each section, where n is an integer greater than or equal to 1; use the software to calculate the section characteristics of irregular sections with complex shapes; use the software to establish the flexibility matrix and mass matrix of the one-dimensional finite element model;

[0056] Set boundary conditions: Determine the dynamic interaction between the dam and the foundation based on the Vogt foundation coefficient method, and ignore the influence of foundation damping and mass;

[0057] Apply additional mass: Adopt the Stegaard added mass model;

[0058] Applied loads: Static and seismic loads are applied in accordance with current specifications.

[0059] It should be noted that the cross-sectional parameters include area, centroid position, moment of inertia and other parameters.

[0060] It should be noted that in the calculation process of the dam body characteristic parameters, it should be noted that the gravity dam is simplified into a variable-section beam, not a vertical cantilever beam in the general sense, but an inclined beam with varying cross-sectional parameters at each layer, whose center of mass is not on a vertical line, and whose slope varies along the height. Therefore, the horizontal displacement and the vertical displacement are coupled with each other, and each section is treated by the method of corrected eccentricity. In other words, horizontal loads produce horizontal and vertical displacements at the same time, and similarly, vertical loads will also produce vertical and horizontal displacements.

[0061] Continue to refer Figure 1 , step S400, performing calculation analysis based on the acceleration response data and the one-dimensional finite element model.

[0062] In some feasible embodiments, based on the above solution, the calculation and analysis based on the acceleration response data and the one-dimensional finite element model includes:

[0063] The acceleration response data is used as model input data and input into the one-dimensional finite element model for calculation and analysis to obtain the stress of the gravity dam under the action of an earthquake.

[0064] Continue to refer Figure 1 , step S500, performing safety evaluation of the gravity dam based on the calculation and analysis results.

[0065] In some feasible embodiments, based on the above scheme, the safety evaluation of the gravity dam based on the calculation and analysis results includes:

[0066] Comparing and judging based on the stress of the gravity dam under earthquake action and the allowable strength value of the dam concrete material;

[0067] When the stress of the gravity dam under the action of an earthquake is less than the allowable strength value of the dam-building concrete material, the gravity dam is judged to be safe.

[0068] In summary, the technical solution of the present application reasonably simplifies the gravity dam into a one-dimensional model. According to the monitored acceleration response data, the stress value of the gravity dam under the action of an earthquake can be calculated very quickly. According to whether the stress value exceeds the allowable strength of concrete, the seismic safety of the dam can be quickly evaluated so that corresponding emergency measures can be taken in time. It has broad application value.

[0069] The following describes an embodiment of the device of the present application, which can be used to implement a method for rapid seismic safety assessment of a gravity dam based on strong vibration monitoring in the above embodiment of the present application. For details not disclosed in the embodiment of the device of the present application, please refer to the embodiment of the above method of the present application.

[0070] Reference Figure 4As shown, according to an embodiment of the present application, a gravity dam seismic safety rapid assessment device 400 based on strong vibration monitoring includes:

[0071] A deployment unit 401 is used to deploy strong vibration monitoring points on the gravity dam section;

[0072] An acquisition unit 402 is used to acquire acceleration response data at the strong vibration monitoring point when an earthquake occurs;

[0073] Establishing unit 403, for establishing a one-dimensional finite element model of the gravity dam section;

[0074] A calculation and analysis unit 404, configured to perform calculation and analysis based on the acceleration response data and the one-dimensional finite element model;

[0075] The evaluation unit 405 is used to perform safety evaluation of the gravity dam based on the calculation and analysis results.

[0076] like Figure 5 As shown, an embodiment of the present application also provides an electronic device 500, including a memory 510, a processor 520, and a computer program 511 stored in the memory 510 and executable on the processor. When the processor 520 executes the computer program 511, the steps of the above-mentioned method for rapid seismic safety assessment of gravity dams based on strong vibration monitoring are implemented.

[0077] Since the electronic device introduced in this embodiment is a device used to implement a gravity dam seismic safety rapid assessment device based on strong vibration monitoring in the embodiment of the present application, based on the method introduced in the embodiment of the present application, the technical personnel in this field can understand the specific implementation mode of the electronic device of this embodiment and its various variations. Therefore, how the electronic device implements the method in the embodiment of the present application is not introduced in detail here. As long as the equipment adopted by the technical personnel in this field to implement the method in the embodiment of the present application, it belongs to the scope of protection of this application.

[0078] During the specific implementation process, when the computer program 511 is executed by a processor, any implementation method in the embodiments corresponding to the first aspect can be implemented.

[0079] Figure 6 A schematic diagram of the structure of a computer system suitable for implementing an electronic device of an embodiment of the present application is shown.

[0080] It should be noted that Figure 6 The computer system 600 of the electronic device shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0081] like Figure 6As shown, the computer system 600 includes a central processing unit (CPU) 601, which can perform various appropriate actions and processes according to the program stored in the read-only memory (ROM) 602 or the program loaded from the storage part 608 to the random access memory (RAM) 603, such as executing the method described in the above embodiment. In the RAM 603, various programs and data required for system operation are also stored. The CPU 601, ROM 602 and RAM 603 are connected to each other through a bus 604. An input / output (I / O) interface 605 is also connected to the bus 604.

[0082] The following components are connected to the I / O interface 605: an input section 606 including a keyboard, a mouse, etc.; an output section 607 including a cathode ray tube (CRT), a liquid crystal display (LCD), etc., and a speaker, etc.; a storage section 608 including a hard disk, etc.; and a communication section 609 including a network interface card such as a LAN (Local Area Network) card, a modem, etc. The communication section 609 performs communication processing via a network such as the Internet. A drive 610 is also connected to the I / O interface 605 as needed. A removable medium 611, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc., is installed on the drive 610 as needed so that a computer program read therefrom is installed into the storage section 608 as needed.

[0083] In particular, according to an embodiment of the present application, the process described above with reference to the flowchart can be implemented as a computer software program. For example, an embodiment of the present application includes a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes a program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network through a communication section 609, and / or installed from a removable medium 611. When the computer program is executed by a central processing unit (CPU) 601, various functions defined in the system of the present application are executed.

[0084] It should be noted that the computer-readable medium shown in the embodiment of the present application may be a computer-readable signal medium or a computer-readable storage medium or any combination of the above two. The computer-readable storage medium may be, for example, - but not limited to - an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM), a flash memory, an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In the present application, a computer-readable storage medium may be any tangible medium containing or storing a program, which may be used by an instruction execution system, device or device or used in combination with it. In the present application, a computer-readable signal medium may include a data signal propagated in a baseband or as part of a carrier wave, wherein a computer-readable program code is carried. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. Computer-readable signal media may also be any computer-readable medium other than computer-readable storage media, which may send, propagate, or transmit programs for use by or in conjunction with an instruction execution system, apparatus, or device. The program code contained on the computer-readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wired, etc., or any suitable combination of the above.

[0085] The flowchart and block diagram in the accompanying drawings illustrate the possible architecture, functions and operations of the system, method and computer program product according to various embodiments of the present application. Wherein, each box in the flowchart or block diagram can represent a module, a program segment, or a part of the code, and the above-mentioned module, program segment, or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram or flowchart, and the combination of boxes in the block diagram or flowchart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0086] The units involved in the embodiments described in this application may be implemented by software or hardware, and the units described may also be set in a processor. The names of these units do not, in some cases, constitute limitations on the units themselves.

[0087] As another aspect, the present application also provides a computer program product or a computer program, which includes computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device executes a method for rapid seismic safety assessment of a gravity dam based on strong vibration monitoring as described in the above embodiment.

[0088] As another aspect, the present application also provides a computer-readable medium, which may be included in the electronic device described in the above embodiment; or may exist independently without being assembled into the electronic device. The above computer-readable medium carries one or more programs, and when the above one or more programs are executed by an electronic device, the electronic device implements a gravity dam seismic safety rapid assessment method based on strong vibration monitoring described in the above embodiment.

[0089] It should be noted that, although several modules or units of the equipment for action execution are mentioned in the above detailed description, this division is not mandatory. In fact, according to the embodiments of the present application, the features and functions of two or more modules or units described above can be embodied in one module or unit. On the contrary, the features and functions of one module or unit described above can be further divided into being embodied by multiple modules or units.

[0090] Through the description of the above implementation methods, it is easy for those skilled in the art to understand that the example implementation methods described here can be implemented by software or by combining software with necessary hardware. Therefore, the technical solution according to the implementation methods of the present application can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a USB flash drive, a mobile hard disk, etc.) or on a network, and includes several instructions to enable a computing device (which can be a personal computer, a server, a touch terminal, or a network device, etc.) to execute the method according to the implementation methods of the present application.

[0091] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the embodiments disclosed herein. The present application is intended to cover any variations, uses or adaptations of the present application, which follow the general principles of the present application and include common knowledge or customary techniques in the art that are not disclosed in the present application. It should be understood that the present application is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A rapid assessment method for seismic safety of gravity dams based on strong vibration monitoring, characterized in that: include: Set up strong vibration monitoring points on the gravity dam section; When an earthquake occurs, obtaining acceleration response data at the strong vibration monitoring point; Establish a one-dimensional finite element model of the gravity dam section; Performing calculation analysis based on the acceleration response data and the one-dimensional finite element model; Safety evaluation of gravity dam is carried out based on calculation and analysis results.

2. The method according to claim 1, characterized in that The one-dimensional finite element model of the gravity dam section is established, including: Calculate the characteristic parameters of the dam body: divide the dam body into n-1 dam blocks cut into n horizontal sections along the elevation, calculate the section parameters of each section, where n is an integer greater than or equal to 1; use the software to calculate the section characteristics of irregular sections with complex shapes; use the software to establish the flexibility matrix and mass matrix of the one-dimensional finite element model; Set boundary conditions: Determine the dynamic interaction between the dam and the foundation based on the Vogt foundation coefficient method, and ignore the influence of foundation damping and mass; Apply additional mass: Adopt the Stegaard added mass model; Applied loads: Static and seismic loads are applied in accordance with current specifications.

3. The method according to claim 1, characterized in that: The calculation and analysis based on the acceleration response data and the one-dimensional finite element model includes: The acceleration response data is used as model input data and input into the one-dimensional finite element model for calculation and analysis to obtain the stress of the gravity dam under the action of an earthquake.

4. The method according to claim 3, characterized in that The safety evaluation of the gravity dam based on the calculation and analysis results includes: Comparing and judging based on the stress of the gravity dam under earthquake action and the allowable strength value of the dam concrete material; When the stress of the gravity dam under the action of an earthquake is less than the allowable strength value of the dam-building concrete material, the gravity dam is judged to be safe.

5. A rapid seismic safety assessment device for gravity dams based on strong vibration monitoring, characterized in that: include: A deployment unit is used to deploy strong vibration monitoring points on the gravity dam section; An acquisition unit, used to acquire acceleration response data at the strong vibration monitoring point when an earthquake occurs; Establishing units for establishing a one-dimensional finite element model of a gravity dam section; A calculation and analysis unit, used for performing calculation and analysis based on the acceleration response data and the one-dimensional finite element model; The evaluation unit is used to carry out safety evaluation of the gravity dam based on the calculation and analysis results.

6. A computer-readable storage medium, characterized in that: The storage medium stores computer instructions, and when the computer instructions are executed on a computer, the computer is enabled to execute the method according to any one of claims 1 to 4.

7. An electronic device, characterized in that: including memory and processor; The memory is used to store computer instructions; The processor is used to call the computer instructions stored in the memory so that the electronic device executes the method as described in any one of claims 1-4.

Images