Method and system for evaluating structural damage of pile-slab bridge caused by soft foundation construction

Abstract

The application provides a kind of soft foundation construction to pile slab bridge structure damage evaluation method and system, comprising: obtaining the structural parameters of pile slab bridge, and based on structural parameters, construction stage division is carried out to pile slab bridge;Based on the structural parameters, construction parameter simulation is carried out before construction in each construction stage, and the mechanical property evolution law of each structural component in the pile slab bridge is determined based on the simulation results of construction parameter simulation;Based on the mechanical property evolution law and the material properties of each structural component, determine the structural damage characteristics of each construction stage, and determine the optimization scheme of the construction parameters for each construction stage based on the structural damage characteristics, and optimize the construction parameters based on the optimization scheme. Reduce the structural damage of pile slab bridge caused by soft foundation construction, at the same time, improve the accuracy, comprehensiveness and real-time performance of the evaluation of the structural damage of pile slab bridge.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of data processing, in particular to a method and system for evaluating structural damage of a pile-slab bridge caused by soft foundation construction. BACKGROUND

[0002] With the continuous advancement of infrastructure construction, pile-slab bridge construction on soft soil foundation is increasing. Soft soil foundation has characteristics such as high water content, large compressibility, and low bearing capacity. During construction, problems such as uneven settlement and soil displacement may occur, which may cause various forms of damage to the pile-slab bridge structure.

[0003] Traditional evaluation methods may have limitations such as low accuracy, incompleteness, and difficulty in real-time monitoring, which cannot accurately grasp the specific damage to the pile-slab bridge structure during soft foundation construction and its development and changes, thus failing to effectively adjust the construction plan in a timely manner, resulting in immeasurable structural damage to the pile-slab bridge.

[0004] Therefore, in order to overcome the above-mentioned defects, the present application provides a method and system for evaluating structural damage of a pile-slab bridge caused by soft foundation construction. SUMMARY

[0005] The present application provides a method and system for evaluating structural damage of a pile-slab bridge caused by soft foundation construction, which obtains the structural parameters of the pile-slab bridge, divides the construction stages of the pile-slab bridge according to the structural parameters, and provides convenience for construction parameter simulation. In addition, the mechanical property evolution law of each structural component in the pile-slab bridge is accurately and effectively evaluated according to the simulation results, which facilitates the evaluation of the structural damage of the pile-slab bridge according to the mechanical property evolution law. Finally, the structural damage characteristics of the pile-slab bridge are determined according to the mechanical property evolution law and the material properties of each structural component, and the optimization scheme of the construction parameters is determined according to the structural damage characteristics, which facilitates the optimization of the construction parameters in a timely manner, thereby reducing the structural damage of the pile-slab bridge caused by soft foundation construction, and improving the accuracy, comprehensiveness, and real-time performance of the evaluation of the structural damage of the pile-slab bridge.

[0006] The present application provides a method for evaluating structural damage of a pile-slab bridge caused by soft foundation construction, comprising:

[0007] Step 1: Obtain the structural parameters of the pile-slab bridge, and divide the construction stages of the pile-slab bridge based on the structural parameters;

[0008] Step 2: Perform construction parameter simulation before each construction stage based on the structural parameters, and determine the mechanical property evolution law of each structural component in the pile-slab bridge based on the construction parameter simulation results;

[0009] Step 3: Determine the structural damage characteristics of each construction stage based on the mechanical property evolution law and the material properties of each structural component, and determine the optimization scheme for the construction parameters of each construction stage based on the structural damage characteristics, and optimize the construction parameters based on the optimization scheme.

[0010] Preferably, in step 1 of the method for evaluating the structural damage of a pile-supported bridge caused by soft foundation construction, the structural parameters of the pile-supported bridge are obtained, including:

[0011] The soft foundation construction file of the pile-supported bridge is obtained, and the content of the soft foundation construction file is parsed to extract the overall design description and structural design details of the pile-supported bridge.

[0012] The text of the overall design description is parsed to obtain an overview of the structural characteristics and dimensions of the pile-supported bridge, and the structural design details are parsed to obtain the component structure of the pile-supported bridge.

[0013] The structural characteristics, dimension overview, and component structure are correlated and mapped to obtain the structural parameters of the pile-supported bridge.

[0014] Preferably, in step 1 of the method for evaluating the structural damage of a pile-supported bridge caused by soft foundation construction, the pile-supported bridge is divided into construction stages based on the structural parameters, including:

[0015] The obtained structural parameters and the pile-supported bridge construction process are parsed to obtain the construction links in the pile-supported bridge construction process.

[0016] The construction standards corresponding to the construction links are extracted, and the connection points between the construction links and the construction objects corresponding to the construction links are determined based on the construction standards.

[0017] The structural parameters are split based on the connection points and construction objects, and the split results are mapped to the construction links to obtain the target construction content corresponding to each construction link.

[0018] The construction stages of the pile-supported bridge are divided based on the target construction content.

[0019] Preferably, in step 2 of the method for evaluating the structural damage of a pile-supported bridge caused by soft foundation construction, the mechanical property evolution law of each structural component in the pile-supported bridge is determined based on the construction parameter simulation before each construction stage, including:

[0020] The obtained structural parameters are used to determine the component set corresponding to each construction stage and the target dimensions based on the structural parameters and the construction stage division results.

[0021] extracting pose features between different components in the component set, and determining a simulation scaling ratio of the component set for each construction stage based on the target size and the pose features;

[0022] obtaining a construction scheme for each construction stage, and analyzing the construction scheme to obtain a corresponding construction time node and a corresponding construction parameter for each construction stage;

[0023] constructing a simulation monitoring process, and associating the simulation monitoring process with the construction stage node corresponding to each construction stage, and configuring a prior time interval based on the association result;

[0024] based on the configuration result, simulating the construction process of the pile-slab bridge in the computer according to the simulation scaling ratio and the construction parameter before each construction stage, and dividing the simulation of the construction process into nodes;

[0025] determining a state monitoring point for the simulation result of the construction process based on the node division result, and configuring background data for the state monitoring point based on the computer;

[0026] dynamically monitoring the construction state of each construction stage based on the background data configuration result, and determining a first stress distribution state and a first strain change characteristic of each structural component under the stage load in each construction stage based on the dynamic monitoring result;

[0027] comprehensively analyzing the stage load of different construction stages to obtain a second stress distribution state and a second strain change characteristic of each structural component in the pile-slab bridge;

[0028] Meanwhile, the construction parameter is adjusted by a target number of single fixed values, and the third stress distribution state and the third strain change characteristic of each structural component under the stage load and the fourth stress distribution state and the fourth strain change characteristic of each structural component in the pile-slab bridge are obtained in real time based on the single fixed value adjustment result;

[0029] based on the first stress distribution state, the first strain change characteristic, the third stress distribution state and the third strain change characteristic, a stage mechanical property evolution control group is obtained, and based on the second stress distribution state, the second strain change characteristic, the fourth stress distribution state and the fourth strain change characteristic, a global mechanical property evolution control group is obtained;

[0030] the value state of the stage mechanical property evolution control group and the global mechanical property evolution control group is analyzed respectively to obtain the stage mechanical property evolution law and the global mechanical property evolution law.

[0031] Preferably, a method for evaluating the damage of a pile-slab bridge structure caused by soft foundation construction is provided, and the stage mechanical property evolution law and the global mechanical property evolution law are obtained, which comprises:

[0032] Obtaining the stage mechanical property evolution law and the global mechanical property evolution law, and determining the mapping relationship between the stage mechanical property evolution law and the global mechanical property evolution law and the construction parameters;

[0033] Building a data cache library, and storing the mapping relationship between the stage mechanical property evolution law and the global mechanical property evolution law and the construction parameters in the data cache library;

[0034] Based on the storage result, a soft foundation construction reference sample library is constructed, and the soft foundation construction reference sample library is configured with permission opening.

[0035] Preferably, in the step 3 of the method for evaluating the structure damage of the pile-slab bridge caused by the soft foundation construction, the structure damage characteristics of each construction stage are determined based on the mechanical property evolution law and the material properties of each structural component, including:

[0036] The obtained mechanical property evolution law is obtained, and the material properties of each structural component are obtained and analyzed to obtain the safe stress range of each structural component;

[0037] The basic parameters of the soft foundation are obtained, and the uneven settlement characteristics of the pile-slab bridge on the soft foundation are determined based on the basic parameters;

[0038] The mechanical property evolution law is corrected based on the influence weight of the uneven settlement characteristics on the stress distribution state and the strain change characteristics, and the correction result is compared with the safe stress range of each structural component;

[0039] Based on the difference comparison result, the vulnerable components and the corresponding damage parameters of each construction stage are determined, and the damage type is determined based on the damage parameters of the vulnerable components and the functional characteristics of the vulnerable components;

[0040] Based on the vulnerable components and the damage type, the structure damage characteristics of each construction stage are obtained.

[0041] Preferably, in the method for evaluating the structure damage of the pile-slab bridge caused by the soft foundation construction, the structure damage characteristics of each construction stage are obtained based on the vulnerable components and the damage type, including:

[0042] The obtained uneven settlement characteristics are analyzed to obtain the unit settlement rate corresponding to the uneven settlement characteristics;

[0043] The unit settlement rate is mapped and associated with the mechanical property evolution law to obtain the change amplitude of the mechanical property evolution law with the unit settlement rate, and the sensitivity of the uneven settlement to the overall stress performance of the pile-slab bridge structure is determined based on the change amplitude;

[0044] Based on the vulnerable components and the damage types, the structural damage mode of the pile-slab bridge is obtained, and the structural damage mode is associated with the sensitivity of uneven settlement to the overall stress performance of the pile-slab bridge structure, so as to obtain the correlation between uneven settlement and the structural damage mode of the pile-slab bridge in the construction stage.

[0045] The correlation is fed back to the management terminal for record storage.

[0046] Preferably, in the step 3, the optimization scheme of the construction parameter of each construction stage is determined based on the structural damage characteristics, and the construction parameter is optimized based on the optimization scheme, comprising:

[0047] The structural damage characteristics are obtained, and the optimization direction and optimization parameter of the construction parameter of each construction stage are determined based on the structural damage characteristics;

[0048] The optimization scheme of the construction parameter is obtained based on the optimization direction and the optimization parameter, and the construction parameter is adjusted based on the optimization scheme;

[0049] The construction parameter is rechecked based on the adjustment result, and the optimization of the construction parameter is completed when the soft foundation construction requirement is met.

[0050] The present application provides a kind of soft foundation construction to the evaluation system of pile-slab bridge structural damage, comprising:

[0051] Construction stage division module, for obtaining the structural parameter of pile-slab bridge, and based on structural parameter, pile-slab bridge is divided into construction stage;

[0052] Analysis module, for based on structural parameter, construction parameter simulation is carried out before construction in each construction stage, and the mechanical performance evolution law of each structural component in pile-slab bridge is determined based on construction parameter simulation result;

[0053] Evaluation and optimization module, for based on mechanical performance evolution law and the material attribute of each structural component, the structural damage characteristics of each construction stage are determined, and the optimization scheme of the construction parameter of each construction stage is determined based on structural damage characteristics, and the construction parameter is optimized based on optimization scheme.

[0054] Preferably, a kind of soft foundation construction to the evaluation system of pile-slab bridge structural damage, construction stage division module, comprising:

[0055] Information acquisition unit, for obtaining the soft foundation construction file of pile-slab bridge, and the content of soft foundation construction file is analyzed, and the overall design description and structural design detail drawing of pile-slab bridge are extracted;

[0056] Structural parameter determination unit, for:

[0057] Text analysis is performed on the overall design description to obtain the structural characteristics and size summary of the pile slab bridge, and structural analysis is performed on the structural design detail drawing to obtain the component structure of the pile slab bridge.

[0058] The structural characteristics, size summary and component structure are correlated and mapped to obtain the structural parameters of the pile slab bridge.

[0059] Compared with the prior art, the beneficial effects of the present application are as follows:

[0060] 1. By obtaining the structural parameters of the pile slab bridge, the construction stage of the pile slab bridge is divided according to the structural parameters, which provides convenience for construction parameter simulation, secondly, according to the structural parameters, the construction parameter simulation is carried out before each construction stage, the mechanical property evolution law of each structural component in the pile slab bridge is accurately and effectively evaluated according to the simulation result, so as to facilitate the evaluation of the structural damage of the pile slab bridge according to the mechanical property evolution law, finally, according to the mechanical property evolution law and the material properties of each structural component, the structural damage characteristics of the pile slab bridge are determined, and the optimization scheme of the construction parameters is determined according to the structural damage characteristics, which facilitates the optimization of the construction parameters according to the optimization scheme, thereby reducing the structural damage of the pile slab bridge caused by soft foundation construction, and improving the accuracy, comprehensiveness and real-time performance of the structural damage evaluation of the pile slab bridge.

[0061] 2. By analyzing the soft foundation construction file of the pile slab bridge, the overall design description and the structural design detail drawing of the pile slab bridge are effectively obtained, secondly, the overall design description and the structural design detail drawing are analyzed respectively, and the analysis results are correlated and mapped, the structural parameters of the pile slab bridge are accurately and effectively determined, which provides data support for the simulation of the construction process of the pile slab bridge, thereby improving the accuracy of the structural damage evaluation of the pile slab bridge caused by soft foundation construction.

[0062] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent to those skilled in the art from the description, or can be learned by practice of the present application. The objects and other advantages of the present application can be achieved and obtained by the structure specifically pointed out in the present application document.

[0063] The technical solutions of the present application will be further described in the following drawings and examples. BRIEF DESCRIPTION OF DRAWINGS

[0064] The accompanying drawings are used to provide further understanding of the present application, and constitute a part of the specification, together with the embodiments of the present application, to explain the present application, and do not constitute a limitation of the present application. In the drawings:

[0065] Figure 1A flow chart of a method for evaluating structural damage of a pile-slab bridge caused by soft foundation construction in an embodiment of the present application;

[0066] Figure 2 A flow chart of step 1 in a method for evaluating structural damage of a pile-slab bridge caused by soft foundation construction in an embodiment of the present application;

[0067] Figure 3 A structural diagram of a system for evaluating structural damage of a pile-slab bridge caused by soft foundation construction in an embodiment of the present application. DETAILED DESCRIPTION

[0068] The preferred embodiments of the present application will be described herein below with reference to the accompanying drawings; it should be understood that the preferred embodiments described herein are intended to be illustrative only and are not used to limit the present application.

[0069] Embodiment 1

[0070] The present embodiment provides a method for evaluating structural damage of a pile-slab bridge caused by soft foundation construction, as shown in FIG. 1, which comprises the following steps: Figure 1

[0071] Step 1: Obtain structural parameters of the pile-slab bridge, and divide the pile-slab bridge into construction stages based on the structural parameters;

[0072] Step 2: Simulate construction parameters before each construction stage based on the structural parameters, and determine the mechanical performance evolution law of each structural component in the pile-slab bridge based on the simulation results of the construction parameters;

[0073] Step 3: Determine the structural damage characteristics of each construction stage based on the mechanical performance evolution law and the material properties of each structural component, and determine the optimization scheme for the construction parameters of each construction stage based on the structural damage characteristics, and optimize the construction parameters based on the optimization scheme.

[0074] In this embodiment, the structural parameters refer to the shape, size, and composition and positional relationship of each structural component in the pile-slab bridge, etc.

[0075] In this embodiment, the construction stage division refers to dividing the construction object of the pile-slab bridge, so as to facilitate the determination of the mechanical performance evolution law of the pile-slab bridge in different construction stages, for example, the pile-slab bridge can be divided into a bridge pile construction stage and a bridge deck construction stage, etc.

[0076] In this embodiment, the construction parameter simulation refers to simulating the pile-slab bridge structure and the construction parameters of the current construction stage according to the structural parameters, so as to facilitate the determination of the stress change of the structural component in the construction process, and to provide a reference for the evaluation of the structural damage of the pile-slab bridge.

[0077] ​In this embodiment, the construction parameter refers to a construction process, a construction flow, and a connection between structural components.

[0078] In this embodiment, the structural component refers to a constituent component of the pile-slab bridge, including piles and bridge decks.

[0079] In this embodiment, the mechanical property evolution law refers to a stress distribution and a corresponding strain change of the structural component in the construction process.

[0080] In this embodiment, the material attribute refers to a material type of the structural component.

[0081] In this embodiment, the structural damage feature refers to a damaged component and a corresponding damage type of the pile-slab bridge in each construction stage, which can be a connecting component or a supporting component.

[0082] The working principle and beneficial effects of the above technical solution are as follows: by obtaining the structural parameters of the pile-slab bridge, the construction stage of the pile-slab bridge is divided according to the structural parameters, which provides convenience for construction parameter simulation, secondly, according to the structural parameters, the construction parameter simulation is performed before each construction stage, the mechanical property evolution law of each structural component in the pile-slab bridge is accurately and effectively evaluated according to the simulation result, so as to facilitate the evaluation of the structural damage of the pile-slab bridge according to the mechanical property evolution law, finally, according to the mechanical property evolution law and the material attribute of each structural component, the structural damage feature of the pile-slab bridge is determined, and the optimization scheme of the construction parameter is determined according to the structural damage feature, which facilitates the optimization of the construction parameter according to the optimization scheme, thereby reducing the structural damage of the pile-slab bridge caused by the soft foundation construction, and improving the accuracy, comprehensiveness and real-time performance of the structural damage evaluation of the pile-slab bridge.

[0083] Embodiment 2:

[0084] On the basis of embodiment 1, the embodiment provides a method for evaluating the structural damage of the pile-slab bridge caused by the soft foundation construction, as shown in Figure 2 In step 1, the structural parameters of the pile-slab bridge are obtained, including:

[0085] Step 101: obtaining the soft foundation construction file of the pile-slab bridge, and performing content analysis on the soft foundation construction file to extract the overall design description and structural design detail drawing of the pile-slab bridge;

[0086] Step 102: performing text analysis on the overall design description to obtain the structural features and size summary of the pile-slab bridge, and simultaneously performing structural analysis on the structural design detail drawing to obtain the component structure of the pile-slab bridge;

[0087] Step 103: Correlate and map the structural features, size summary and component structure to obtain the structural parameters of the pile-slab bridge.

[0088] In this embodiment, the soft foundation construction file refers to a specific requirement text for the construction of the pile-slab bridge on the soft foundation, including the structure and position information of the pile-slab bridge.

[0089] In this embodiment, the overall design specification refers to the component composition of the pile-slab bridge and the size information of each component.

[0090] In this embodiment, the structural features refer to the component types, shapes and connection relationships of the pile-slab bridge.

[0091] In this embodiment, the correlation mapping refers to corresponding display of the size summary of each component structure and the corresponding specific structure, so as to facilitate the determination of the structural parameters of each component structure of the pile-slab bridge.

[0092] The working principle and beneficial effects of the above technical solution are: by analyzing the soft foundation construction file of the pile-slab bridge, the overall design specification and structural design detail drawing of the pile-slab bridge are effectively obtained, and then the overall design specification and structural design detail drawing are analyzed respectively, and the analysis results are correlated and mapped, so as to accurately and effectively determine the structural parameters of the pile-slab bridge, which provides data support for the simulation of the pile-slab bridge construction process, thereby improving the accuracy of the soft foundation construction on the pile-slab bridge structure damage evaluation.

[0093] Embodiment 3:

[0094] Based on the embodiment 1, the embodiment provides a method for evaluating the damage of the pile-slab bridge structure caused by the soft foundation construction, and in step 1, the pile-slab bridge is divided into construction stages based on the structural parameters, including:

[0095] The obtained structural parameters and the pile-slab bridge construction process are analyzed to obtain the construction links in the pile-slab bridge construction process.

[0096] The construction standards corresponding to the construction links are extracted, and the connection points between the construction links and the construction objects corresponding to the construction links are determined based on the construction standards.

[0097] The structural parameters are split based on the connection points and the construction objects, and the split results are mapped with the construction links to obtain the target construction contents corresponding to the construction links.

[0098] The construction stage division of the pile-slab bridge is completed based on the target construction contents.

[0099] In this embodiment, the pile-slab bridge construction process is known in advance, which is used to represent the construction sequence and construction links of structures such as bridge piles and bridge decks during the construction of the pile-slab bridge.

[0100] In this embodiment, the construction link refers to all steps involved in the construction process of the pile-slab bridge.

[0101] In this embodiment, the construction standard is known in advance, which is used to represent the construction requirement information of each link, such as the diameter of the bridge pile and the connection position and connection method with other structures.

[0102] In this embodiment, the construction object refers to the executed subject corresponding to each construction link, such as structures such as bridge decks and bridge piles.

[0103] In this embodiment, the category mapping refers to matching the splitting results with the dependency of each construction link, so as to facilitate the determination of the construction content corresponding to different construction links, wherein the target construction content is the final construction content corresponding to each construction link.

[0104] The working principle and beneficial effects of the above technical solution are: by analyzing the pile-slab bridge construction process, the construction links involved in the pile-slab bridge construction process are accurately and effectively determined, then the construction standard of each construction link is locked, the construction object of each construction link is effectively determined according to the construction standard, providing reliable data support for construction phase division, finally, the structure parameters are split according to the construction object, the target construction content corresponding to each construction link is accurately determined, improving the accurate division of the construction phase of the pile-slab bridge, and providing convenience for construction parameter simulation.

[0105] Embodiment 4:

[0106] On the basis of embodiment 1, the embodiment provides a method for evaluating the damage of a soft foundation construction to a pile-slab bridge structure, in step 2, based on the structure parameters, the construction parameter simulation is performed before each construction phase, and based on the construction parameter simulation result, the mechanical property evolution law of each structure component in the pile-slab bridge is determined, including:

[0107] The obtained structure parameters are based on the structure parameters and the construction phase division result to determine the component set corresponding to each construction phase and the target size corresponding to each construction phase;

[0108] The posture features between different components in the component set are extracted, and the simulation scaling ratio of the component set of each construction phase is determined based on the target size and the posture features;

[0109] Obtain the construction scheme of each construction stage, and analyze the construction scheme to obtain the construction time node corresponding to each construction stage and the corresponding construction parameter;

[0110] A simulation monitoring process is constructed, and the simulation monitoring process is associated with the construction stage node corresponding to each construction stage, and a prior time interval is configured based on the association result;

[0111] Based on the configuration result, the pile slab bridge is simulated and simulated in the computer according to the simulation scaling ratio and the construction parameter before the construction of each construction stage, and the node division of the construction process simulation is performed;

[0112] Based on the node division result, the state monitoring point of the construction process simulation result is determined, and the background data configuration of the state monitoring point is performed based on the computer;

[0113] Based on the background data configuration result, the construction state of each construction stage is dynamically monitored, and based on the dynamic monitoring result, the first stress distribution state and the first strain change characteristic of each structural component under the stage load in each construction stage are determined;

[0114] The stage loads of different construction stages are integrated to obtain the second stress distribution state and the second strain change characteristic of each structural component in the pile slab bridge;

[0115] At the same time, the construction parameter is adjusted by a target number of single fixed values, and based on the single fixed value adjustment result, the third stress distribution state and the third strain change characteristic of the target group number of each structural component under the stage load and the fourth stress distribution state and the fourth strain change characteristic of each structural component in the pile slab bridge are obtained in real time under the corresponding construction parameter;

[0116] Based on the first stress distribution state, the first strain change characteristic, the third stress distribution state and the third strain change characteristic, the stage mechanical property evolution control group is obtained, and based on the second stress distribution state, the second strain change characteristic, the fourth stress distribution state and the fourth strain change characteristic, the global mechanical property evolution control group is obtained;

[0117] The value state of the stage mechanical property evolution control group and the global mechanical property evolution control group is analyzed respectively to obtain the stage mechanical property evolution law and the global mechanical property evolution law.

[0118] In this embodiment, the construction set refers to all components corresponding to each construction stage, such as bridge pile, bridge deck base plate, etc., wherein the target size refers to the length, width and thickness information of each construction in the construction set.

[0119] In this embodiment, the attitude feature refers to the specific shape information presented by the appearance of each construction.

[0120] In this embodiment, the simulation scaling ratio refers to the proportional relationship between the simulation model and the actual pile-slab bridge during the simulation of the pile-slab bridge, for example, the simulation can be performed at a ratio of 1:10.

[0121] In this embodiment, the construction scheme refers to the specific construction plan corresponding to each construction stage, including the execution action corresponding to each construction step.

[0122] In this embodiment, the construction time node refers to the specific construction time information corresponding to each construction stage.

[0123] In this embodiment, the construction parameter refers to the specific information corresponding to each construction stage during the construction process, including the allowed construction time length, the connection position between the constructions during construction, and the connection method.

[0124] In this embodiment, the construction stage node refers to the specific information corresponding to each construction stage.

[0125] In this embodiment, the prior time interval refers to the time period before the start of each construction stage, which is intended to facilitate timely monitoring operations through simulation monitoring of the progress of each construction stage, for example, the prior time interval can be 1 minute before the start of each construction stage.

[0126] In this embodiment, the node division refers to the division of the construction process simulation, which is intended to effectively monitor the construction process of different construction stages, thereby facilitating the determination of the mechanical performance evolution law of each structural component,

[0127] In this embodiment, the state monitoring point refers to the specific position information for information monitoring of the simulation results of the construction process simulation, thereby facilitating the determination of the interaction between each structural component of the pile-slab bridge in each construction stage.

[0128] In this embodiment, the background data configuration refers to the simulation monitoring of the state monitoring point, i.e., simulating the deployment of monitoring equipment at the state monitoring point, which is intended to effectively obtain the real-time situation of the corresponding position through the state monitoring point.

[0129] In this embodiment, the first stress distribution state refers to the stress distribution of each structural component under the stage load in each construction stage, including the size and direction of the stress.

[0130] In this embodiment, the first strain change characteristic refers to the size of the strain change value of each structural component under the stage load in each construction stage.

[0131] In this embodiment, the comprehensive stage load action of different construction stages refers to the final stage load action obtained by collecting the construction results corresponding to different construction stages.

[0132] In this embodiment, the single fixed value adjustment refers to the size of the adjustment of the value of the construction parameter each time, and the value of each adjustment is fixed, wherein the target number is known in advance.

[0133] In this embodiment, the third stress distribution state and the third strain change characteristic refer to the stress size and strain change corresponding to different construction parameter values after adjusting the construction parameter, wherein the target group number and the target number have the same value.

[0134] In this embodiment, the fourth stress distribution state and the fourth strain change characteristic refer to the stress distribution and strain change between different structural components obtained by collecting the construction results of different construction stages after adjusting the construction parameter.

[0135] In this embodiment, the stage mechanical property evolution control group refers to the mechanical property evolution law of each structural component corresponding to each construction stage obtained by analyzing the stress distribution state and the strain change characteristic of each construction stage.

[0136] In this embodiment, the global mechanical property evolution control group refers to the mechanical property evolution law of each component in the whole pile-slab bridge obtained by collecting the construction results of all construction stages.

[0137] In this embodiment, the analysis of the value state of the stage mechanical property evolution control group and the global mechanical property evolution control group respectively refers to the analysis of the value change trend and the relative change relationship.

[0138] The working principle and beneficial effects of the above technical solution are: through the structural parameters and the construction stage division result, the construction set and size information of each construction stage are effectively determined, so as to effectively determine the simulation scaling ratio of the construction set and size information of each construction stage. At the same time, the construction scheme of each construction stage is analyzed to accurately and effectively determine the construction time node and construction parameter of each construction stage. Secondly, according to the obtained construction set, size information and construction parameter, reliable construction process simulation of each construction stage is realized, and the simulation monitoring process is realized through the construction time node configuration, so as to effectively determine the stress distribution state and strain change characteristic of each construction stage. Finally, the construction results of each construction stage are summarized, and the construction parameters are adjusted multiple times to accurately and effectively obtain the analysis sample, and the stress distribution state and strain change characteristic under different conditions are compared and analyzed to effectively determine the mechanical property evolution law of each structure component, so as to facilitate the evaluation of the structural damage of the pile slab bridge according to the mechanical property evolution law, and improve the accuracy, comprehensiveness and real-time performance of the structural damage evaluation of the pile slab bridge.

[0139] Embodiment 5:

[0140] Based on embodiment 4, the embodiment provides a method for evaluating the structural damage of a pile slab bridge caused by soft foundation construction, and obtains the stage mechanical property evolution law and the global mechanical property evolution law, including:

[0141] Obtain the stage mechanical property evolution law and the global mechanical property evolution law, and determine the mapping relationship between the stage mechanical property evolution law and the global mechanical property evolution law and the construction parameter;

[0142] Construct a data cache library, and store the mapping relationship between the stage mechanical property evolution law and the global mechanical property evolution law and the construction parameter in the data cache library;

[0143] Based on the storage result, a soft foundation construction reference sample library is constructed, and the soft foundation construction reference sample library is configured with open permission.

[0144] In this embodiment, the mapping relationship is used to represent the corresponding relationship between the stage mechanical property evolution law and the global mechanical property evolution law and the construction parameter.

[0145] In this embodiment, the data cache library is a space area for storing the mapping relationship between the stage mechanical property evolution law and the global mechanical property evolution law and the construction parameter.

[0146] In this embodiment, the soft foundation construction reference sample library refers to the result obtained after storing the stage mechanical property evolution law, the global mechanical property evolution law and the corresponding relationship with the construction parameters, which can provide a reference basis in the construction process of the pile-slab bridge.

[0147] The working principle and beneficial effects of the above technical solution are: by determining the stage mechanical property evolution law, the global mechanical property evolution law and the mapping relationship with the construction parameters, and recording and storing the stage mechanical property evolution law, the global mechanical property evolution law and the mapping relationship with the construction parameters, the soft foundation construction reference sample library is accurately and effectively constructed, and a reliable reference basis is provided for the construction of the pile-slab bridge.

[0148] Embodiment 6:

[0149] On the basis of embodiment 1, the embodiment provides a method for evaluating the damage of soft foundation construction to the pile-slab bridge structure. In step 3, the structural damage characteristics of each construction stage are determined based on the mechanical property evolution law and the material properties of each structural component, including:

[0150] The obtained mechanical property evolution law, at the same time, the material properties of each structural component are obtained, and the material properties are analyzed to obtain the safe stress range of each structural component;

[0151] The basic parameters of the soft foundation are obtained, and the uneven settlement characteristics of the pile-slab bridge on the soft foundation are determined based on the basic parameters;

[0152] The mechanical property evolution law is corrected based on the influence weight of the stress distribution state and the strain change characteristics on the uneven settlement characteristics, and the correction result is compared with the safe stress range of each structural component;

[0153] Based on the difference comparison result, the vulnerable components and the corresponding damage parameters of each construction stage are determined, and the damage type is determined based on the damage parameters of the vulnerable components and the functional characteristics of the vulnerable components;

[0154] Based on the vulnerable components and the damage type, the structural damage characteristics of each construction stage are obtained.

[0155] In this embodiment, the safe stress range refers to the effective stress range of each structural component determined after analyzing each material property.

[0156] In this embodiment, the basic parameters refer to the softness and settlement speed of the soft foundation.

[0157] In this embodiment, the uneven settlement characteristics refer to the uneven settlement of the pile-slab bridge on the soft foundation, including different settlement speeds at different positions.

[0158] In this embodiment, the influence weight refers to the severity of the influence of the uneven settlement feature on the stress distribution state and the strain change feature.

[0159] In this embodiment, the damage parameter refers to the specific damage degree of the vulnerable component in the construction process.

[0160] In this embodiment, the functional feature refers to the role of the vulnerable component in the pile-slab bridge.

[0161] The working principle and beneficial effects of the above technical solution are: by analyzing the material properties of each structural component, the safe stress range of each structural component is effectively determined, and then the basic parameters of the soft foundation are analyzed, the uneven settlement feature of the pile-slab bridge on the soft foundation is effectively determined, and the mechanical property evolution law is corrected according to the uneven settlement feature, and the correction result is compared with the safe stress range of each structural component, the vulnerable component and the corresponding damage parameter of each construction stage are effectively determined, and finally, the damage type is determined according to the damage parameter of the vulnerable component and the functional characteristics of the vulnerable component, and the structural damage feature of each construction stage is effectively determined, which provides a reliable basis for the optimization of construction parameters.

[0162] Embodiment 7:

[0163] On the basis of embodiment 6, the embodiment provides a method for evaluating the structural damage of a pile-slab bridge caused by soft foundation construction, and the structural damage feature of each construction stage is obtained based on the vulnerable component and the damage type, which includes:

[0164] The uneven settlement feature is obtained and analyzed to obtain the unit settlement rate corresponding to the uneven settlement feature;

[0165] The unit settlement rate is mapped and associated with the mechanical property evolution law to obtain the change amplitude of the mechanical property evolution law with the unit settlement rate, and the sensitivity of uneven settlement to the overall stress performance of the pile-slab bridge structure is determined based on the change amplitude;

[0166] The structural damage mode of the pile-slab bridge is obtained based on the vulnerable component and the damage type, and the structural damage mode is associated with the sensitivity of uneven settlement to the overall stress performance of the pile-slab bridge structure to obtain the correlation between uneven settlement and the structural damage mode of the pile-slab bridge in the construction stage;

[0167] The correlation is fed back to the management terminal for record storage.

[0168] In this embodiment, the unit settlement rate refers to the specific degree of the pile-slab bridge descending in each unit time on the soft foundation.

[0169] In this embodiment, the mapping correlation refers to binding the unit settlement rate with the mechanical property evolution law.

[0170] In this embodiment, the structural damage mode refers to the vulnerable components and corresponding damage types of the pile slab bridge under different conditions.

[0171] The working principle and beneficial effects of the above technical solution are: by analyzing the uneven settlement characteristics, the unit settlement rate is accurately and effectively determined, and the unit settlement rate is associated with the mechanical property evolution law, the mechanical property evolution law is accurately and effectively determined according to the change amplitude of the unit settlement rate, secondly, the sensitivity of uneven settlement to the overall stress performance of the pile slab bridge structure is determined according to the change amplitude, and the structural damage mode of the pile slab bridge is obtained according to the vulnerable components and the damage type, the structural damage mode is associated with the sensitivity, and the correlation between uneven settlement and the structural damage mode of the pile slab bridge structure in the construction stage is effectively determined, so as to facilitate effective optimization of the construction parameters according to the obtained correlation, and reduce the structural damage of the pile slab bridge caused by soft foundation construction.

[0172] Embodiment 8:

[0173] Based on embodiment 1, the embodiment provides a method for evaluating the structural damage of the pile slab bridge caused by soft foundation construction, in step 3, the optimization scheme of the construction parameters of each construction stage is determined based on the structural damage characteristics, and the construction parameters are optimized based on the optimization scheme, including:

[0174] The structural damage characteristics are obtained, and the optimization direction and optimization parameters of the construction parameters of each construction stage are determined based on the structural damage characteristics;

[0175] The optimization scheme of the construction parameters is obtained based on the optimization direction and the optimization parameters, and the construction parameters are adjusted based on the optimization scheme;

[0176] The construction parameters are rechecked based on the adjustment result, and the optimization of the construction parameters is completed when the soft foundation construction requirements are met.

[0177] In this embodiment, the optimization direction and the optimization parameters refer to the specific parameter types of the construction parameter optimization of each construction stage and the specific numerical values of the adjustment of the types of parameters.

[0178] The working principle and beneficial effects of the above technical solution are: the optimization direction and the optimization parameters of the construction parameters of each construction stage are determined based on the structural damage characteristics, the optimization scheme of the construction parameters is obtained according to the optimization direction and the optimization parameters, and the construction parameters are effectively adjusted, so as to ensure the construction safety of the pile slab bridge.

[0179] Embodiment 9:

[0180] The embodiment provides a system for evaluating structural damage of a pile-slab bridge caused by soft foundation construction, as shown in the accompanying drawings, comprising: Figure 3

[0181] A construction phase division module is configured to acquire structural parameters of the pile-slab bridge and divide the pile-slab bridge into different construction phases based on the structural parameters.

[0182] An analysis module is configured to simulate construction parameters before construction in each construction phase based on the structural parameters and determine mechanical performance evolution rules of each structural component in the pile-slab bridge based on simulation results of the construction parameters.

[0183] An evaluation and optimization module is configured to determine structural damage characteristics of each construction phase based on the mechanical performance evolution rules and material properties of each structural component, determine an optimization scheme for the construction parameters of each construction phase based on the structural damage characteristics, and optimize the construction parameters based on the optimization scheme.

[0184] The working principle and beneficial effects of the above technical solution are as follows: the structural parameters of the pile-slab bridge are acquired, the pile-slab bridge is divided into different construction phases based on the structural parameters, which provides convenience for simulation of the construction parameters, then the construction parameters are simulated before construction in each construction phase based on the structural parameters, the mechanical performance evolution rules of each structural component in the pile-slab bridge are accurately and effectively evaluated based on simulation results, so that the structural damage of the pile-slab bridge can be evaluated based on the mechanical performance evolution rules, finally, the structural damage characteristics of the pile-slab bridge are determined based on the mechanical performance evolution rules and the material properties of each structural component, and the optimization scheme for the construction parameters is determined based on the structural damage characteristics, so that the construction parameters can be optimized in time based on the optimization scheme, thereby reducing the structural damage of the pile-slab bridge caused by the soft foundation construction, and improving the accuracy, comprehensiveness and real-time performance of the evaluation of the structural damage of the pile-slab bridge.

[0185] Embodiment 10

[0186] Based on the embodiment 9, the embodiment provides a system for evaluating structural damage of a pile-slab bridge caused by soft foundation construction, and the construction phase division module comprises:

[0187] An information acquisition unit is configured to acquire a soft foundation construction file of the pile-slab bridge, and perform content analysis on the soft foundation construction file to extract overall design instructions and structural design detailed drawings of the pile-slab bridge.

[0188] A structural parameter determination unit is configured to:

[0189] perform text analysis on the overall design instructions to obtain structural features and size summaries of the pile-slab bridge, and perform structural analysis on the structural design detailed drawings to obtain component structural compositions of the pile-slab bridge.

[0190] ​The structural parameters of the pile-slab bridge are obtained by correlating and mapping the structural features, size summaries and component structures.

[0191] The working principle and beneficial effects of the technical solution are as follows: by analyzing the soft foundation construction file of the pile-slab bridge, the overall design description and structural design detail drawing of the pile-slab bridge are effectively obtained; secondly, the overall design description and structural design detail drawing are analyzed respectively, and the analysis results are correlated and mapped, so that the structural parameters of the pile-slab bridge are accurately and effectively determined, which provides data support for the pile-slab bridge construction process simulation, thereby improving the accuracy of the soft foundation construction on the pile-slab bridge structure damage evaluation.

[0192] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application also intends to include these modifications and variations.

Claims

1. A method for evaluating damage of a pile-slab bridge structure by soft ground construction, characterized by, The method comprises the following steps: Step 1: Obtain the structural parameters of the pile-slab bridge, and divide the construction stages of the pile-slab bridge based on the structural parameters; Step 2: Simulate the construction parameters before each construction stage based on the structural parameters, and determine the mechanical property evolution law of each structural component in the pile-slab bridge based on the simulation results of the construction parameters; Step 3: Determine the structural damage characteristics of each construction stage based on the mechanical property evolution law and the material properties of each structural component, and determine the optimization scheme for the construction parameters of each construction stage based on the structural damage characteristics, and optimize the construction parameters based on the optimization scheme; In step 3, the structural damage characteristics of each construction stage are determined based on the mechanical property evolution law and the material properties of each structural component, which comprises: Obtain the mechanical property evolution law, and at the same time, obtain the material properties of each structural component, and analyze the material properties to obtain the safe stress range of each structural component; Obtain the basic parameters of the soft foundation, and determine the uneven settlement characteristics of the pile-slab bridge on the soft foundation based on the basic parameters; Modify the mechanical property evolution law based on the influence weight of the stress distribution state and the strain change characteristics on the uneven settlement characteristics, and compare the modification results with the safe stress range of each structural component; Determine the vulnerable components and the corresponding damage parameters of each construction stage based on the difference comparison results, and determine the damage type based on the damage parameters of the vulnerable components and the functional characteristics of the vulnerable components; Obtain the structural damage characteristics of each construction stage based on the vulnerable components and the damage type; In step 3, the structural damage characteristics of each construction stage are determined based on the mechanical property evolution law and the material properties of each structural component, which comprises: Obtain the uneven settlement characteristics, and analyze the uneven settlement characteristics to obtain the unit settlement rate corresponding to the uneven settlement characteristics; Map the unit settlement rate and the mechanical property evolution law to obtain the change amplitude of the mechanical property evolution law with the unit settlement rate, and determine the sensitivity of uneven settlement to the overall stress performance of the pile-slab bridge structure based on the change amplitude; Obtain the structural damage mode of the pile-slab bridge based on the vulnerable components and the damage type, and correlate the structural damage mode with the sensitivity of uneven settlement to the overall stress performance of the pile-slab bridge structure to obtain the correlation between uneven settlement and the structural damage mode of the pile-slab bridge in the construction stage; The correlation is fed back to the management terminal for recording and storage.

2. The method for evaluating the damage of the pile-plate bridge structure in soft ground construction according to claim 1, characterized in that, In step 1, the structural parameters of the pile-slab bridge are obtained, which comprises: Obtain the soft foundation construction file of the pile-slab bridge, and perform content analysis on the soft foundation construction file to extract the overall design description and structural design detail drawing of the pile-slab bridge; Perform text analysis on the overall design description to obtain the structural characteristics and size summary of the pile-slab bridge, and perform structural analysis on the structural design detail drawing to obtain the component structure of the pile-slab bridge; Map the structural characteristics, size summary and component structure to obtain the structural parameters of the pile-slab bridge.

3. The method for evaluating the damage of the pile-plate bridge structure in soft ground construction according to claim 1, characterized in that, In step 1, the construction stages of the pile-slab bridge are divided based on the structural parameters, which comprises: Obtain the structural parameters and the construction process of the pile-slab bridge, and analyze the construction process of the pile-slab bridge to obtain the construction links in the construction process of the pile-slab bridge; extract the construction standard corresponding to the construction link, and determine the connection points between the construction links and the construction objects corresponding to the construction links based on the construction standard; split the structure parameters based on the connection points and the construction objects, and perform category mapping on the splitting results and the construction links to obtain the target construction content corresponding to each construction link; based on the target construction content, complete the construction stage division of the pile-slab bridge.

4. The method for evaluating the damage of the pile-plate bridge structure in soft ground construction according to claim 1, characterized in that, In step 2, based on the structure parameters, construction parameter simulation is performed before each construction stage, and based on the construction parameter simulation results, the mechanical property evolution law of each structure component in the pile-slab bridge is determined, including: obtain the structure parameters, and based on the structure parameters and the construction stage division results, determine the component set corresponding to each construction stage and the corresponding target size; extract the attitude features between different components in the component set, and based on the target size and the attitude features, determine the simulation scaling ratio of the component set in each construction stage; obtain the construction scheme of each construction stage, and analyze the construction scheme to obtain the construction time node corresponding to each construction stage and the corresponding construction parameter; construct a simulation monitoring process, and associate the simulation monitoring process with the construction stage node corresponding to each construction stage, and configure a prior time interval based on the association result; based on the configuration result, simulate the construction process of the pile-slab bridge in the computer according to the simulation scaling ratio and the construction parameter before each construction stage, and divide the construction process simulation into nodes; based on the node division result, determine the state monitoring point of the construction process simulation result, and configure the background data of the state monitoring point based on the computer; based on the background data configuration result, dynamically monitor the construction state of each construction stage, and based on the dynamic monitoring result, determine the first stress distribution state and the first strain change characteristic of each structure component under the stage load in each construction stage; integrate the stage loads of different construction stages to obtain the second stress distribution state and the second strain change characteristic of each structure component in the pile-slab bridge; at the same time, adjust the construction parameter by a target number of single fixed values, and based on the single fixed value adjustment result, real-time obtain the third stress distribution state and the third strain change characteristic of the target group of each structure component under the stage load, and the fourth stress distribution state and the fourth strain change characteristic of each structure component in the pile-slab bridge under the corresponding construction parameter; based on the first stress distribution state, the first strain change characteristic, the third stress distribution state and the third strain change characteristic, obtain the stage mechanical property evolution control group, and based on the second stress distribution state, the second strain change characteristic, the fourth stress distribution state and the fourth strain change characteristic, obtain the global mechanical property evolution control group; analyze the value state of the stage mechanical property evolution control group and the global mechanical property evolution control group respectively to obtain the stage mechanical property evolution law and the global mechanical property evolution law.

5. The method for evaluating the damage of the pile-plate bridge structure in soft ground construction according to claim 4, wherein, the stage mechanical property evolution law and the global mechanical property evolution law obtained, including: The obtained stage mechanical property evolution law and the global mechanical property evolution law, and determine the mapping relationship between the stage mechanical property evolution law and the global mechanical property evolution law and the construction parameters; Construct a data cache library, and store the mapping relationship between the stage mechanical property evolution law and the global mechanical property evolution law and the construction parameters in the data cache library; Based on the storage result, a soft foundation construction reference sample library is constructed, and the soft foundation construction reference sample library is configured with permission opening.

6. The method for evaluating the damage of the pile-plate bridge structure in soft ground construction according to claim 1, wherein, In step 3, the optimization scheme for the construction parameters of each construction stage is determined based on the structural damage characteristics, and the construction parameters are optimized based on the optimization scheme, including: Obtain the structural damage characteristics, and determine the optimization direction and optimization parameters of the construction parameters of each construction stage based on the structural damage characteristics; Based on the optimization direction and optimization parameters, an optimization scheme for the construction parameters is obtained, and the construction parameters are adjusted based on the optimization scheme; Based on the adjustment result, the construction parameters are rechecked, and the optimization of the construction parameters is completed when the soft foundation construction requirements are met.

7. A system for evaluating damage to a pile-plate bridge structure by soft ground construction, characterized by, It includes: The construction stage division module is used to obtain the structural parameters of the pile-slab bridge, and to divide the pile-slab bridge into construction stages based on the structural parameters; The analysis module is used to simulate and simulate the construction parameters before the construction of each construction stage based on the structural parameters, and to determine the mechanical property evolution law of each structural component in the pile-slab bridge based on the simulation results of the construction parameters; The evaluation and optimization module is used to determine the structural damage characteristics of each construction stage based on the mechanical property evolution law and the material properties of each structural component, and to determine the optimization scheme for the construction parameters of each construction stage based on the structural damage characteristics, and to optimize the construction parameters based on the optimization scheme; The evaluation and optimization module includes: The obtained mechanical property evolution law is obtained, and the material properties of each structural component are obtained and analyzed to obtain the safe stress range of each structural component; Obtain the basic parameters of the soft foundation, and determine the uneven settlement characteristics of the pile-slab bridge on the soft foundation based on the basic parameters; Based on the influence weight of the stress distribution state and the strain change characteristics, the mechanical property evolution law is corrected, and the correction result is compared with the safe stress range of each structural component; Based on the difference comparison result, the vulnerable components and the corresponding damage parameters of each construction stage are determined, and the damage type is determined based on the damage parameters of the vulnerable components and the functional characteristics of the vulnerable components; Based on the vulnerable components and the damage type, the structural damage characteristics of each construction stage are obtained; The structural damage characteristics of each construction stage are obtained based on the vulnerable components and the damage type, including: The obtained uneven settlement characteristics are analyzed to obtain the unit settlement rate corresponding to the uneven settlement characteristics; Map the unit settlement rate and the mechanical property evolution law to obtain the change amplitude of the mechanical property evolution law with the unit settlement rate, and determine the sensitivity of the uneven settlement to the overall stress performance of the pile-slab bridge structure based on the change amplitude. Based on the vulnerable components and the damage types, a structural damage mode of the pile-slab bridge is obtained, and the structural damage mode is associated with the sensitivity of the uneven settlement to the overall stress performance of the pile-slab bridge structure, so as to obtain the correlation between the uneven settlement and the structural damage mode of the pile-slab bridge in the construction stage; The correlation is fed back to the management terminal for record storage.

8. The system for assessing damage to a pile-plate bridge structure from soft ground construction according to claim 7, wherein The construction stage division module comprises: An information acquisition unit is configured to acquire a soft foundation construction file of the pile-slab bridge, and perform content analysis on the soft foundation construction file to extract overall design description and structural design detail drawing of the pile-slab bridge; A structural parameter determination unit is configured to: perform text analysis on the overall design description to obtain structural features and size summary of the pile-slab bridge, and perform structural analysis on the structural design detail drawing to obtain component structure of the pile-slab bridge; associate and map the structural features, size summary and component structure to obtain structural parameters of the pile-slab bridge.

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