Parameter Sensitivity Analysis Method, Device and Electronic Equipment for Steel Sheet Pile Cofferdam

Abstract

The present application relates to a method, device and electronic equipment for parameter sensitivity analysis of a cofferdam. The method includes: obtaining a preset analysis working condition and establishing an analysis model according to the preset analysis working condition; obtaining preset data of model parameters and setting a change range corresponding to each model parameter; determining data to be analyzed according to the preset data and change range of the model parameters; based on the analysis model, determining specific data of sensitive parameters corresponding to the data to be analyzed and specific data of sensitive parameters corresponding to the preset data; selecting target data to be analyzed based on a preset selection rule; determining a sensitivity index corresponding to each sensitive parameter based on a preset analysis rule; and determining the sensitivity of the sensitive parameter according to the sensitivity index and a preset sensitivity analysis table. The present application can provide a basis for the design of a steel sheet pile cofferdam, thereby improving the safety of the steel sheet cofferdam structure.

Description

Technical Field

[0001] The present application relates to the field of bridge foundations, and in particular to a method, device, and electronic equipment for parameter sensitivity analysis of a steel sheet pile cofferdam. Background Art

[0002] A steel sheet pile cofferdam is a commonly used type of sheet pile cofferdam. The steel sheet piles are provided with locking mouths, and their cross-sections are straight, grooved, Z-shaped, etc., with various sizes and interlocking forms. When constructing in water, inclined supports are added if necessary to form a cage, and concrete is used for bottom sealing.

[0003] Currently, there are certain defects in the design of steel sheet pile cofferdams. As a temporary support structure, designers usually only perform force analysis on each component separately and then simply combine them into the overall calculation result of the steel sheet pile cofferdam, thus ignoring the overall force of the cofferdam structure and resulting in safety accidents such as the overturning and collapse of the steel cofferdam during construction. Summary of the Invention

[0004] In order to provide a basis for the design of steel sheet pile cofferdams and thus improve the safety of the steel cofferdam structure, the present application provides a method, device, and electronic equipment for parameter sensitivity analysis of a steel sheet pile cofferdam.

[0005] In a first aspect, the present application provides a method for parameter sensitivity analysis of a cofferdam, adopting the following technical solution:

[0006] A method for parameter sensitivity analysis of a cofferdam, the method comprising:

[0007] Obtain a preset analysis condition, and establish an analysis model according to the preset analysis condition;

[0008] Obtain preset data of model parameters, and set the change range corresponding to each model parameter;

[0009] Determine the data to be analyzed according to the preset data of the model parameters and the change range;

[0010] Based on the analysis model, determine the specific data of the sensitive parameters corresponding to the data to be analyzed according to the data to be analyzed;

[0011] Based on a preset selection rule, select target data to be analyzed, and determine the specific data of each sensitive parameter corresponding to the target data to be analyzed;

[0012] Based on a preset analysis rule, determine the sensitivity index corresponding to each sensitive parameter according to the specific data of the sensitive parameter, the target data to be analyzed, the preset data, and the specific data of the sensitive parameter corresponding to the preset data;

[0013] Determine the sensitivity of the sensitive parameters according to the sensitivity index and a preset sensitivity analysis table, where the sensitivity includes insensitive, generally sensitive, sensitive, and extremely sensitive.

[0014] By adopting the above technical solution, first obtain the preset analysis working conditions, establish an analysis model, then obtain the preset data of the model parameters, set the variation range of each model parameter, determine multiple data to be analyzed corresponding to the model parameters according to the preset data and the variation range, and then based on the analysis model, determine the specific data of the sensitive parameters corresponding to the data to be analyzed according to the data to be analyzed, determine the specific data of the sensitive parameters corresponding to the preset data according to the preset data, and then determine the target data and the specific data of the sensitive parameters corresponding to the target data. Based on the preset analysis rules, according to the specific data of the sensitive parameters, the target data to be analyzed, the preset data, and the specific data of the sensitive parameters corresponding to the preset data, determine the sensitivity index corresponding to each sensitive parameter. According to the sensitivity index and the preset sensitivity analysis table, determine the sensitivity of the sensitive parameters. In the subsequent design process of the steel sheet pile cofferdam, it can play a guiding role in the design. Set the specific data of the model parameters according to the sensitivity of the sensitive parameters by multiple model parameters to improve the safety of the steel sheet pile cofferdam.

[0015] Optionally, the obtaining of the preset analysis working conditions and the establishment of the analysis model according to the preset analysis working conditions specifically include:

[0016] The preset analysis working conditions include the types, models, quantities, and respective dimensions of the components selected for the steel sheet pile cofferdam, as well as the force information of the steel sheet pile cofferdam;

[0017] Establish a component model of the steel sheet pile cofferdam according to the types, models, quantities, and respective dimensions of the components selected for the steel sheet pile cofferdam;

[0018] Establish an analysis model according to the component model, and the analysis model is a three-dimensional model of the steel sheet pile cofferdam.

[0019] Optionally, the determining of the specific data of the sensitive parameters corresponding to the data to be analyzed based on the analysis model and according to the data to be analyzed specifically includes:

[0020] Input the analysis model, the data to be analyzed, and the force information of the steel sheet pile cofferdam into MIDSCivil, and calculate to obtain the specific data of the sensitive parameters corresponding to each data to be analyzed.

[0021] Optionally, select the target data to be analyzed based on a preset selection rule, specifically including:

[0022] Select the data to be analyzed with the largest difference from the preset data as the target data to be analyzed.

[0023] Optionally, the preset analysis rule is as follows:

[0024]

[0025] Wherein, I is the sensitivity index, O is the target data to be analyzed, F is the preset data, ΔO is the difference between the specific data of the sensitive parameter corresponding to the target data to be analyzed and the specific data of the sensitive parameter corresponding to the preset model parameter, and ΔF is the difference between the data to be analyzed and the specific data of its corresponding model parameter.

[0026] Optionally, the preset sensitivity analysis table includes classification, sensitivity index range, and sensitivity, and each sensitivity index range corresponds to a classification and a sensitivity.

[0027] Optionally, according to the sensitivity index and the preset sensitivity analysis table, determine the sensitivity of the sensitive parameter, specifically including:

[0028] Compare the sensitivity index with the sensitivity index range in the preset sensitivity analysis table to determine the sensitivity index range corresponding to the sensitivity index;

[0029] Determine the sensitivity corresponding to the sensitivity index range corresponding to the sensitivity index.

[0030] In a second aspect, the present application provides a parameter sensitivity analysis device for a cofferdam, adopting the following technical solution:

[0031] A parameter sensitivity analysis device for a cofferdam, comprising:

[0032] A first acquisition module, configured to acquire a preset analysis condition and establish an analysis model according to the preset analysis condition;

[0033] A second acquisition module, configured to acquire the preset data of the model parameter and set the change range corresponding to each model parameter;

[0034] A first processing module, configured to determine the data to be analyzed according to the preset data of the model parameter and the change range;

[0035] A second processing module, configured to determine the specific data of the sensitive parameter corresponding to the data to be analyzed based on the analysis model;

[0036] A selection module, configured to select the target data to be analyzed based on a preset selection rule and determine the specific data of each sensitive parameter corresponding to the target data to be analyzed;

[0037] An analysis module, configured to determine a sensitivity index corresponding to each of the sensitive parameters based on a preset analysis rule according to the specific data of the sensitive parameters, the target data to be analyzed, the preset data, and the specific data of the sensitive parameters corresponding to the preset data; a third processing module, configured to determine the sensitivity of the sensitive parameters according to the sensitivity index and a preset sensitivity analysis table, where the sensitivity includes insensitive, generally sensitive, sensitive, and extremely sensitive.

[0038] In a third aspect, the present application provides an electronic device, adopting the following technical solution:

[0039] An electronic device includes a memory and a processor, and a computer program for the parameter sensitivity analysis method of the cofferdam that can be loaded and executed by the processor is stored on the memory.

[0040] In a fourth aspect, the present application provides a computer-readable storage medium, adopting the following technical solution:

[0041] A computer-readable storage medium stores a computer program for the parameter sensitivity analysis method of the cofferdam that can be loaded and executed by the processor.

[0042] In summary, the present application includes the following beneficial technical effects:

[0043] By comprehensively analyzing the influence of multiple model parameters on the sensitive parameters, during the subsequent design process of the steel sheet pile cofferdam, it can play a certain guiding role in the design. According to the sensitivity of multiple model parameters to the sensitive parameters, the specific data of the model parameters are set to improve the safety of the steel sheet pile cofferdam. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 is a flowchart of the parameter sensitivity analysis method of the cofferdam provided by the present application.

[0045] Figure 2 is a structural block diagram of the parameter sensitivity analysis device of the cofferdam provided by the present application.

[0046] Figure 3 is a schematic structural diagram of the electronic device provided by the present application.

[0047] Description of the reference numerals: 301, CPU; 302, ROM; 303, RAM; 304, I / O interface; 305, input part; 306, output part; 307, storage part; 308, communication part; 309, driver; 310, removable medium. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0048] The following is a further detailed description of the present application in conjunction with the attached Figures 1 - 3 drawings.

[0049] An embodiment of the present application discloses a method for analyzing the parameter sensitivity of a cofferdam. Refer to Figure 1 , the method for analyzing the parameter sensitivity of the cofferdam includes:

[0050] S101: Obtain a preset analysis condition, and establish an analysis model according to the preset analysis condition.

[0051] Specifically, the preset analysis condition includes the material type, model, quantity, dimensions of each part of the steel sheet pile cofferdam, and the force information of the steel sheet pile cofferdam. In this embodiment, the preset analysis condition is: for the internal support purlin of the steel sheet pile cofferdam, double-ply HN500×200 steel sections and double-ply HN700×300 steel sections are selected, the horizontal and inclined braces are selected as 630mm×10mm steel pipes, and the underwater sealed bottom concrete is C20 underwater concrete with a designed thickness of 1.5m. The application environment is that the maximum water depth is about 5m and the water level change range is about 5m. The water pressure received by the steel sheet pile cofferdam can be analyzed, and then the received water pressure is equivalent to the corresponding surface load to obtain the force information of the steel sheet pile cofferdam.

[0052] After determining the preset analysis condition of the steel sheet pile cofferdam, the types, models, quantities, and dimensions of each part of the components selected for the steel sheet pile cofferdam are input into MIDS Civil, and component models of each component constituting the steel sheet pile cofferdam are established respectively. Then, a three-dimensional model of the steel sheet pile cofferdam, that is, an analysis model, is established according to the component models. In this embodiment, constructing a model through MIDS Civil software is a well-known technical means for those skilled in the art, and the specific establishment process will not be elaborated here.

[0053] S102: Obtain the preset data of the model parameters, and set the change range corresponding to each model parameter.

[0054] Specifically, in this embodiment, the model parameters include the number of internal support space arrangements, the thickness of the steel sheet pile section, and the thickness of the sealed bottom concrete. The preset data of each model parameter can be extracted from the analysis model. Among them, the preset data of the number of internal support space arrangements is 3, the preset data of the thickness of the steel sheet pile section is 15mm, and the preset data of the thickness of the sealed bottom concrete is 2m. After determining the model parameters, set the change range of each model parameter. Among them, the change ranges of the number of internal support space arrangements and the thickness of the steel sheet pile section are 33.3%, and the change range of the thickness of the sealed bottom concrete is 25%.

[0055] S103: Determine the data to be analyzed according to the preset data and change range of the model parameters.

[0056] Specifically, the data to be analyzed for the number of internal support spaces arranged is: 3 - 3×33.3% = 2, 3 + 3×33.3% = 4, 4 + 3×33.3% = 5, 3; the data to be analyzed for the cross-sectional thickness of the steel sheet pile is: 15 - 15×33.3% = 10, 15, 15 + 15×33.3% = 20, 20 + 15×33.3% = 25; the data to be analyzed for the thickness of the bottom-sealing concrete is: 2 - 2×25% = 1.5, 2, 2 + 2×25% = 2.5, 2.5 + 2×25% = 3.

[0057] S104: Based on the analysis model, determine the specific data of the sensitive parameters corresponding to the data to be analyzed according to the data to be analyzed, and determine the specific data of the sensitive parameters corresponding to the preset data according to the preset data.

[0058] Specifically, the sensitive parameters include the stress of the steel sheet pile, the displacement of the steel sheet pile, the stress of the internal support, and the displacement of the internal support. After the specific analysis model is established, the control variable method is used. By sequentially changing the specific data of each model parameter and through the MIDSCivil software, a new analysis model is formed. Then, according to each analysis model, the data to be analyzed, and the force information of the steel sheet pile cofferdam, the specific data of the sensitive parameters of each data to be analyzed can be calculated through the MIDS Civil software. The MIDSCivil software is a general-purpose spatial finite element analysis software and is a commonly used model force analysis software at present, which is often used in the research of engineering forces.

[0059] For example:

[0060] Internal support Steel sheet pile stress Steel sheet pile displacement Internal support stress Internal support displacement Arrangement quantity (MPa) (mm) (MPa) (mm) Two rows 213.11 24.23 189.32 11.32 Three rows 124.53 15.42 132.31 9.12 Four rows 101.31 11.42 89.21 7.54 Five rows 50.54 6.92 65.63 6.63

[0061] Table 1

[0062] Among them, Table 1 is the specific data of each sensitive parameter corresponding to different numbers of internal support arrangements.

[0063] Steel sheet pile Steel sheet pile stress Steel sheet pile displacement Internal support stress Internal support displacement Thickness (MPa) (mm) (MPa) (mm) 10mm 182.32 21.23 152.42 11.46 15mm 124.53 15.42 132.31 9.12 20mm 95.23 11.82 115.64 6.37 25mm 66.54 9.04 107.63 5.73

[0064] Table 2

[0065] Among them, Table 2 is the specific data of each sensitive parameter corresponding to different steel sheet pile thicknesses.

[0066] Bottom - sealed concrete Steel sheet pile stress Steel sheet pile displacement Internal support stress Internal support displacement Thickness (MPa) (mm) (MPa) (mm) 1.5m 129.34 16.14 131.24 9.01 2.0m 124.53 15.42 132.31 9.12 2.5m 120.42 15.21 136.23 8.91 3.0m 120.74 14.88 129.5 9.085

[0067] Table 3

[0068] Among them, Table 3 is the specific data of each sensitive parameter corresponding to different bottom-sealing concretes.

[0069] S105: Based on the preset selection rules, select the target data to be analyzed and determine the specific data of each sensitive parameter corresponding to the target data to be analyzed.

[0070] Specifically, after determining the data to be analyzed, the data to be analyzed corresponding to each model parameter are sorted in descending order, and then the data to be analyzed with the largest difference from the preset data of the model parameter is selected as the target data to be analyzed.

[0071] For example: for the number of internal supports arranged, 5 > 4 > 3 > 2, where 3 is the preset data. Therefore, the target data to be analyzed corresponding to the number of internal supports arranged is 5. After determining that the target data to be analyzed is 5, referring to Table 1, the specific data of the sensitive parameters corresponding to 5 can be determined as follows: the stress of the steel sheet pile is 50.54 Mpa, the displacement of the steel sheet pile is 6.92 mm, the stress of the internal support is 65.63 Mpa, and the displacement of the internal support is 6.63 mm. In this embodiment, the determination method of the target data to be analyzed corresponding to other model parameters is the same as the above determination method, and will not be exemplified one by one here.

[0072] S106: Based on the preset analysis rules, according to the specific data of the sensitive parameters, the target data to be analyzed, the preset data, and the specific data of the sensitive parameters corresponding to the preset data, determine the sensitivity index corresponding to each sensitive parameter.

[0073] Specifically, the calculation formula for the sensitivity index is: where I is the sensitivity index, O is the target data to be analyzed, F is the preset data, Δ0 is the difference between the specific data of the sensitive parameter corresponding to the target data to be analyzed and the specific data of the sensitive parameter corresponding to the preset model parameter, and ΔF is the difference between the data to be analyzed and the specific data of its corresponding model parameter.

[0074] For example: the sensitivity index of the stress of the steel sheet pile corresponding to the number of internal supports arranged is:

[0075]

[0076] The sensitivity index of the displacement force of the steel sheet pile corresponding to the number of internal supports arranged is:

[0077]

[0078] The sensitivity index of the stress of the internal support corresponding to the number of internal supports arranged is:

[0079]

[0080] The sensitivity index of the stress of the internal support corresponding to the number of internal supports arranged is:

[0081]

[0082] In the above manner, the sensitivity index of each sensitive parameter corresponding to the thickness of the steel sheet pile and the sensitivity index of each sensitive parameter corresponding to the thickness of the bottom-sealing concrete can be calculated in sequence. The specific calculation process will not be exemplified one by one here.

[0083] S107: Determine the sensitivity of the sensitive parameters according to the sensitivity index and the preset sensitivity analysis table.

[0084] Specifically, the preset sensitivity analysis table includes classification, sensitivity index range, and sensitivity. Each sensitivity index range corresponds to a classification and a sensitivity, as shown in Table 4.

[0085]

[0086]

[0087] Table 4

[0088] Among them, the first column in Table 4 is the sensitivity classification, the second column is the sensitivity index range, and the third column is the sensitivity. The data in each row correspond to each other.

[0089] After determining the sensitivity of the sensitive parameters corresponding to each model parameter, it can play a certain guiding role in the design of the steel sheet pile cofferdam. For example, the stress displacement deformation of each component of the steel sheet pile cofferdam is sensitive to the change in the number of internal support space arrangements, and its sensitivity index reaches up to 0.89 at most. During the design, the number of internal support space arrangements can be used as the most important sensitivity parameter for the mechanical properties of the steel sheet pile cofferdam. During the structural design process of the steel sheet pile cofferdam, by adjusting the two parameters of the number of internal support space arrangements, the stress state of the steel sheet pile cofferdam structure can be effectively improved.

[0090] The embodiment of the present application also discloses a parameter sensitivity analysis device for a cofferdam. Refer to Figure 2 , the parameter sensitivity analysis device 200 for the cofferdam includes:

[0091] The first acquisition module 201 is configured to acquire a preset analysis working condition and establish an analysis model according to the preset analysis working condition;

[0092] The second acquisition module 202 is configured to acquire the preset data of the model parameters and set the change range corresponding to each model parameter;

[0093] The first processing module 203 is configured to determine the data to be analyzed according to the preset data and the change range of the model parameters;

[0094] The second processing module 204 is configured to determine the specific data of the sensitive parameters corresponding to the data to be analyzed based on the analysis model according to the data to be analyzed;

[0095] The selection module 205 is configured to select target data to be analyzed based on a preset selection rule, and determine the specific data of each sensitive parameter corresponding to the target data to be analyzed;

[0096] The analysis module 206 is configured to determine the sensitivity index corresponding to each sensitive parameter based on a preset analysis rule, according to the specific data of the sensitive parameter, the target data to be analyzed, the preset data, and the specific data of the sensitive parameter corresponding to the preset data;

[0097] The third processing module 207 is configured to determine the sensitivity of the sensitive parameter according to the sensitivity index and a preset sensitivity analysis table, where the sensitivity includes insensitive, generally sensitive, sensitive, and extremely sensitive.

[0098] Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the described modules can refer to the corresponding processes in the foregoing method embodiments, and will not be elaborated herein.

[0099] The application embodiment discloses an electronic device. Referring to Figure 3 , the electronic device includes a central processing unit (CPU) 301, which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 302 or a program loaded from a storage section 307 into a random access memory (RAM) 303. In the RAM 303, various programs and data required for system operation are also stored. The CPU 301, the ROM 302, and the RAM 303 are connected to each other via a bus. An input / output (I / O) interface 304 is also connected to the bus.

[0100] The following components are connected to the I / O interface 304: an input section 305 including a keyboard, a mouse, etc.; an output section 306 including a cathode ray tube (CRT), a liquid crystal display (LCD), etc. and a speaker, etc.; a storage section 307 including a hard disk, etc.; and a communication section 308 including a network interface card such as a LAN card, a modem, etc. The communication section 308 performs communication processing via a network such as the Internet. A driver 309 is also connected to the I / O interface 304 as needed. A removable medium 310, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc., is installed on the driver 309 as needed, so that a computer program read from it can be installed into the storage section 307 as needed.

[0101] Specifically, according to the embodiments of the present application, the above reference flow chart Figure 1The described process can be implemented as a computer software program. For example, embodiments of the present application include a computer program product that includes a computer program carried on a machine-readable medium, and the computer program contains program code for performing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network through the communication section 308, and / or installed from the removable medium 310. When the computer program is executed by the central processing unit (CPU) 301, the above functions defined in the device of the present application are performed.

[0102] It should be noted that the computer-readable medium shown in the present application can be a computer-readable signal medium, a computer-readable storage medium, or any combination of the two. The computer-readable storage medium can be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the above. More specific examples of the computer-readable storage medium can 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 or 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, the computer-readable storage medium can be any tangible medium that contains or stores a program that can be used by or in conjunction with an instruction execution system, apparatus, or device. In the present application, the computer-readable signal medium can include a data signal propagated in a baseband or as part of a carrier wave, which carries the computer-readable program code. Such a propagated data signal can take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. The computer-readable signal medium can also be any computer-readable medium other than the computer-readable storage medium, which can send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device. The program code contained on the computer-readable medium can be transmitted by any appropriate medium, including but not limited to: wireless, wire, optical cable, RF, etc., or any suitable combination of the above.

[0103] The above description is only a preferred embodiment of the present application and an explanation of the applied technical principles. Those skilled in the art should understand that the scope of the application involved in the present application is not limited to the technical solution formed by the specific combination of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the foregoing application concept. For example, the technical solutions formed by mutually replacing the above features with (but not limited to) the technical features having similar functions applied in the present application.

Claims

1. A method for parametric sensitivity analysis of a steel sheet pile cofferdam, characterized in that: It includes: Obtain a preset analysis condition, and establish an analysis model according to the preset analysis condition; Obtain the preset data of the model parameters, and set the change range corresponding to each model parameter; Determine the data to be analyzed according to the preset data of the model parameters and the change range; Based on the analysis model, determine the specific data of the sensitive parameters corresponding to the data to be analyzed according to the data to be analyzed; Based on the preset selection rule, select the target data to be analyzed, and determine the specific data of each sensitive parameter corresponding to the target data to be analyzed; Based on the preset analysis rule, according to the specific data of the sensitive parameters, the target data to be analyzed, the preset data, and the specific data of the sensitive parameters corresponding to the preset data, determine the sensitivity index corresponding to each sensitive parameter; According to the sensitivity index and the preset sensitivity analysis table, determine the sensitivity of the sensitive parameters, and the sensitivity includes insensitive, generally sensitive, sensitive, and extremely sensitive.

2. The method for parametric sensitivity analysis of a steel sheet pile cofferdam according to claim 1, characterized in that: The obtaining of the preset analysis condition and the establishment of the analysis model according to the preset analysis condition specifically include: The preset analysis condition includes the type, model, quantity, and each part dimension of the components selected for the steel sheet pile cofferdam, as well as the force information of the steel sheet pile cofferdam; Establish a component model of the steel sheet pile cofferdam according to the type, model, quantity, and each part dimension of the components selected for the steel sheet pile cofferdam; Establish an analysis model based on the component model, and the analysis model is a three-dimensional model of the steel sheet pile cofferdam.

3. The method for parametric sensitivity analysis of a steel sheet pile cofferdam according to claim 2, characterized in that: Based on the analysis model, according to the data to be analyzed, determining the specific data of the sensitive parameters corresponding to the data to be analyzed specifically includes: Input the analysis model, the data to be analyzed, and the force information of the steel sheet pile cofferdam into MIDS Civil, and calculate the specific data of the sensitive parameters corresponding to each data to be analyzed.

4. The method for parametric sensitivity analysis of a steel sheet pile cofferdam according to claim 1, characterized in that: Based on the preset selection rule, selecting the target data to be analyzed specifically includes: Select the data to be analyzed with the largest difference from the preset data as the target data to be analyzed.

5. The method for parametric sensitivity analysis of a steel sheet pile cofferdam according to claim 4, characterized in that: The preset analysis rule is: where I is the sensitivity index, O is the target data to be analyzed, F is the preset data, ΔO is the difference between the specific data of the sensitive parameter corresponding to the target data to be analyzed and the specific data of the sensitive parameter corresponding to the preset model parameter, and ΔF is the difference between the data to be analyzed and its corresponding specific data of the model parameter.

6. The method for parametric sensitivity analysis of a steel sheet pile cofferdam according to claim 1, characterized in that: The preset sensitivity analysis table includes classification, sensitivity index range, and sensitivity, and each sensitivity index range corresponds to a classification and a sensitivity.

7. The method for parametric sensitivity analysis of a steel sheet pile cofferdam according to claim 1, It is characterized in that: According to the sensitivity index and a preset sensitivity analysis table, determine the sensitivity of the sensitive parameters, specifically including: Compare the sensitivity index with the sensitivity index range in the preset sensitivity analysis table to determine the sensitivity index range corresponding to the sensitivity index; Determine the sensitivity corresponding to the sensitivity index range corresponding to the sensitivity index.

8. A device for analyzing the parameter sensitivity of a steel sheet pile cofferdam It is characterized in that: It includes: A first acquisition module (201) for acquiring a preset analysis working condition and establishing an analysis model according to the preset analysis working condition; A second acquisition module (202) for acquiring preset data of model parameters and setting the change range corresponding to each model parameter; A first processing module (203) for determining data to be analyzed according to the preset data of the model parameters and the change range; A second processing module (204) for determining the specific data of the sensitive parameters corresponding to the data to be analyzed based on the analysis model according to the data to be analyzed; A selection module (205) for selecting target data to be analyzed based on a preset selection rule and determining the specific data of each sensitive parameter corresponding to the target data to be analyzed; An analysis module (206) for determining the sensitivity index corresponding to each sensitive parameter based on a preset analysis rule according to the specific data of the sensitive parameter, the target data to be analyzed, the preset data, and the specific data of the sensitive parameter corresponding to the preset data; A third processing module (207) for determining the sensitivity of the sensitive parameters according to the sensitivity index and a preset sensitivity analysis table, where the sensitivity includes insensitive, generally sensitive, sensitive, and extremely sensitive.

9. An electronic device It is characterized in that: It includes a memory and a processor, and the memory stores a method for analyzing the parameter sensitivity of a steel sheet pile cofferdam according to any one of claims 1-7 that can be loaded and executed by the processor.

10. A computer-readable storage medium It is characterized in that: It stores a method for analyzing the parameter sensitivity of a steel sheet pile cofferdam according to any one of claims 1-7 that can be loaded and executed by the processor.

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