BIM platform-based gate station stability calculation method and system

Abstract

The invention provides a BIM platform-based gate station stability calculation method and system. The method comprises the following steps of displaying to-be-calculated gate station three-dimensional design model data in a BIM platform; interactive operation is carried out based on the three-dimensional design model, and a gate station stability analysis and calculation unit and parameters thereof are set; setting a working condition combination and parameters thereof for the calculation unit; setting corresponding load distribution in the working condition combination; packaging the gate station calculation unit, the parameters of the gate station calculation unit, the working condition combination, the parameters of the gate station calculation unit and the load distribution of the gate station calculation unit through three-dimensional features, and storing the packaged data in a BIM platform to realize persistent storage and visual display; and the solver obtains an analysis calculation result by reading calculation characteristics stored in the BIM platform, and gives a standard allowable value to evaluate whether the requirement is met or not. According to the method, deep integration of analysis and calculation and a BIM platform is realized, the disjunction defect of traditional design and calculation is eliminated, and the integrated and collaborative advantages of water gate BIM design and calculation are fully exerted.

Description

Technical Field

[0001] The present invention belongs to the technical field of sluice safety data management, and in particular relates to a method and system for calculating sluice station stability based on a BIM platform. Background Art

[0002] Sluice gates are typical water conservancy engineering structures, widely used in canal and river projects to regulate water levels and control flow. The design of sluice gates is a complex and systematic task that requires comprehensive consideration of multiple factors such as topography, geology, and water flow. Sluice gate structures vary in layout and there are many factors that affect the design. In particular, the stability analysis of the chamber structure is an important basis for determining the project layout and core parameters, and is highly comprehensive and practical.

[0003] With the rapid development of BIM technology (Building Information Modeling), the water conservancy and hydropower industry has gradually adopted three-dimensional design methods. Compared with traditional two-dimensional design, BIM technology has the advantages of strong interactivity, intuitive visualization, and real-time collaboration, and has become the mainstream trend in sluice engineering design. However, the existing BIM technology still has limitations in practical applications and fails to fully cover all operational links in the water conservancy and hydropower industry.

[0004] Especially in the analysis and calculation of sluice stability, there are the following defects and deficiencies:

[0005] Outdated calculation methods: Currently, the stability analysis of main structures such as lock chambers and pump chambers still mainly relies on traditional manual calculation methods, which leads to cumbersome parameter settings and low efficiency.

[0006] The calculation process is scattered: there is a lack of integration with the BIM platform. The calculation process cannot directly rely on 3D design data. Data management is not unified. The calculation results are separated from the 3D model, resulting in unintuitive results.

[0007] Large amount of repetitive work: When the plan is modified or the parameters are adjusted, recalculation and review are required, which makes it difficult to iterate efficiently. The large amount of repetitive work affects the efficiency of project design.

[0008] Limitations of auxiliary software: Although there are commercial software such as hydraulic calculation program sets and hydraulic stability calculation on the market, these tools are still mainly based on two-dimensional calculations, lacking graphic interaction and data linkage with the BIM platform, and the design and calculation processes are disconnected. When the plan changes, it is often necessary to repeat the calculation or fail to review the calculation results in time.

[0009] The results are not intuitive: The calculation results of traditional methods are usually presented in the form of text or reports, which lack intuitive connection with the BIM model and are difficult to support design optimization and decision-making.

[0010] In summary, the existing technology in the analysis and calculation of sluice stability has problems such as fragmented calculation process, low data integration, large amount of repetitive work, and non-intuitive results. It is difficult to fully utilize the advantages of the BIM platform and cannot meet the actual needs of full-process three-dimensional design collaboration and efficient analysis. Summary of the invention

[0011] The purpose of the present invention is to solve the shortcomings of the above-mentioned background technology, and to provide a method and system for calculating the stability of a sluice station based on a BIM platform. Relying on the three-dimensional design data of the BIM platform, the stability calculation of the designated calculation unit of the sluice station is completed in an integrated manner, and the full process automation of parameter association, working condition combination setting, load distribution, calculation solution and result packaging is realized; through data linkage with the BIM platform, the calculation results are encapsulated into the three-dimensional model as three-dimensional feature data, and the results are intuitively visible; support rapid iteration of working condition combination, load distribution and parameter setting, improve the efficiency of scheme adjustment and review, and reduce repetitive work; realize deep integration with the BIM platform, and give full play to the integrated collaborative advantages of BIM technology in the stability analysis and calculation of sluices.

[0012] The technical solution adopted by the present invention is: a method for calculating the stability of a gate station based on a BIM platform, comprising the following steps:

[0013] Display the 3D design data of the gate station to be calculated in the BIM platform;

[0014] Determine the calculation unit of the gate station to be calculated and its parameters based on the displayed three-dimensional design data of the gate station to be calculated;

[0015] Set the working condition combination and its parameters for the unit to be calculated;

[0016] Set the corresponding load distribution for each working condition combination;

[0017] The gate station calculation unit and its parameters, working condition combination and its parameters, and load distribution parameters are saved in the BIM platform using 3D feature packaging, and displayed in 3D visualization in the BIM view area;

[0018] The solver calculates all load distributions under specified working conditions through the characteristic data to be calculated saved in the BIM platform, calculates the anti-slip, anti-floating and base stress unevenness coefficients, and saves the calculation results and process to the BIM platform;

[0019] According to external instructions, the three-dimensional feature data saved in the BIM platform is imported into the set template and the calculation report is output.

[0020] In the above technical solution, the parameters of the gate station calculation unit include the sluice level, base reference plane, and base parameters; the base parameters include base reference elevation, base length in the downstream direction, base width in the direction perpendicular to the water flow, foundation type and its corresponding foundation parameters.

[0021] In the above technical solution, the parameters of the working condition combination include: working condition name, working condition stress condition, combination condition and characteristic water level.

[0022] In the above technical solution, the load distribution includes: deadweight, water weight, hydrostatic pressure, uplift pressure, soil pressure, silt pressure, wind pressure, wave pressure, ice pressure, frost heave force of soil, earthquake load and other loads; each working condition combination corresponds to several of the above load distributions.

[0023] In the above technical solution, the process of setting any load distribution for any working condition includes: picking up corresponding points, lines and / or surfaces as the selected area of ​​the load distribution through the three-dimensional design data of the gate station calculation unit to be calculated displayed in the BIM platform, and writing the parameters corresponding to the load distribution through external instructions.

[0024] In the above technical scheme, the solver calculates the anti-sliding, anti-floating and base stress unevenness coefficients based on the sluice design specifications; the solver generates a comparison result of the calculation results of the anti-sliding, anti-floating and base stress unevenness coefficients with the corresponding agreed allowable values ​​in the sluice design specifications, evaluates whether the specifications are met, and encapsulates it as a three-dimensional feature.

[0025] In the above technical scheme, there is a time sequence between different working condition combinations. Before load distribution is performed on any working condition combination, the preceding working condition combination of the working condition combination is traversed first to identify whether there is a transferable load. If so, it is used as the transfer load of the working condition combination; the anti-slip, anti-floating and base stress unevenness coefficients are calculated based on the direct load distribution and the transferred load distribution.

[0026] The present invention also provides a gate station stability calculation system based on a BIM platform, which is used to implement the gate station stability calculation method based on a BIM platform described in the above technical solution, and the system includes:

[0027] BIM platform, used to display the three-dimensional design data of the gate station to be calculated, and provide the operation interface of each functional module and the structure tree hierarchy directory, the structure tree hierarchy directory is used to display the name of the calculation unit of the gate station that has been created, the name of the working condition combination and the name of the load distribution;

[0028] Analysis and calculation modules, including:

[0029] A calculation unit creation module is used to determine the gate station calculation unit to be calculated based on external instructions, and set the parameters of the calculation unit; associate the parameters with the selected calculation unit and save them to the BIM platform; the name of the created calculation unit node is displayed as a first-level object in the structure tree hierarchical directory;

[0030] The working condition combination creation module is used to select the calculation unit name in the structure tree hierarchical directory based on external instructions, locate the specific calculation unit, and set the working condition combination and its parameters; associate the working condition combination parameters with the selected calculation unit and save them, and add the working condition combination node name to the next level of the calculation unit node in the structure tree hierarchical directory;

[0031] The load distribution creation module is used to select the load condition combination name in the structure tree hierarchical directory based on external instructions, locate the specific load condition, and set the load distribution parameters; associate the load distribution parameters with the selected load condition and save them, and add the load distribution node name to the next level of the structure tree hierarchical directory of the load condition combination node;

[0032] The feature encapsulation module is used to encapsulate the calculation unit parameters generated by the calculation unit creation module, the working condition combination parameters generated by the working condition combination creation module, and the load parameters generated by the load creation module into three-dimensional features, save them persistently to the BIM platform, and interactively display them in the BIM platform view area;

[0033] The calculation output module is used to select the calculation unit name or working condition name of the gate station in the hierarchical directory based on the instruction, locate the specific data object, and extract the saved data and import it into the set template for output;

[0034] Solver, used to select the gate station calculation unit or its specified working condition combination in the structure tree hierarchical directory based on instructions, calculate the anti-slip, anti-floating and base stress unevenness coefficients, and encapsulate the calculation results as three-dimensional feature data and save them to the BIM platform;

[0035] The structure tree hierarchical directory structure of the BIM platform includes:

[0036] First level: calculation unit name;

[0037] Second level: working condition combination name;

[0038] Level 3: Load distribution name.

[0039] In the above technical solution, the load distribution creation module includes deadweight, water weight, hydrostatic pressure, uplift pressure, soil pressure, silt pressure, wind pressure, wave pressure, ice pressure, frost heave force of soil, earthquake load and other load setting modules; the BIM platform displays the start buttons of all load calculation modules, and lights up the start button of the load setting module corresponding to the specified working condition combination under the gate station calculation unit to be calculated, to prompt that the start instruction of the load setting module can be received.

[0040] The present invention also provides a computer-readable storage medium having a computer program stored thereon, characterized in that when the computer program is executed by a processor, the method for calculating gate station stability based on a BIM platform as described in the above technical solution is implemented.

[0041] The beneficial effects of the present invention are as follows: the present invention displays the three-dimensional design data to be calculated through the BIM platform and performs parameter setting in combination with external instructions, which can effectively achieve the following advantages:

[0042] Automated calculation process: The system automatically reads and writes data such as calculation units, working condition combinations and load distribution, greatly reducing the complexity and error rate of manual calculations.

[0043] Strong data association: All data (calculation units, working conditions, load distribution, etc.) are combined with the three-dimensional design data in the BIM platform, achieving efficient data association and integration to ensure data integrity and accuracy.

[0044] Full life cycle support: This approach not only covers calculations during the design phase, but also provides quick feedback for subsequent design modifications and optimizations, helping to improve engineering design efficiency.

[0045] Furthermore, the present invention provides accurate parameter definition for the calculation unit by setting detailed parameters of the calculation unit, including the sluice level, base reference plane and base parameters (such as elevation, length in the downstream direction, width in the direction perpendicular to the water flow, etc.), which helps to establish a high-precision three-dimensional model. The detailed definition of the base parameters makes the subsequent stability calculation more accurate and avoids the assumption errors in the traditional method; it improves the standardization level of various parameters and ensures the consistency and reliability of the calculation under different working conditions.

[0046] Furthermore, the setting of the working condition combination of the present invention includes the name, stress condition, combination condition and characteristic water level. By clearly setting these parameters, the load and working condition changes in various working environments can be more realistically simulated; the accurate setting of different working condition combinations helps to improve the calculation accuracy and reduce the errors caused by human factors; the working conditions can be quickly adjusted according to different design requirements, and different design schemes can be flexibly responded to.

[0047] Furthermore, the load distribution of the present invention includes various types of loads such as deadweight, water weight, hydrostatic pressure, uplift pressure, etc., and corresponds to different working conditions respectively. The method comprehensively considers various types of loads (such as wind pressure, ice pressure, earthquake load, etc.) to ensure that all influencing factors are taken into account; each load distribution corresponds to a specific working condition, which can more accurately reflect the actual situation and avoid the risk of missing key loads; the load distribution is automatically set, which improves the calculation efficiency and reduces errors caused by manual intervention.

[0048] Furthermore, the present invention selects and sets parameters of the three-dimensional model data of the gate station to be calculated in the BIM platform, and selects the load distribution area through visualization, so that the load setting is more intuitive and convenient, and the operation difficulty of the calculator is reduced; the load distribution selection is performed quickly and accurately, which reduces the manual intervention and errors in the traditional method and improves the accuracy of the calculation results; the load distribution selection directly depends on the three-dimensional model data, which ensures the consistency of the load distribution with the design data.

[0049] Furthermore, the solver of the present invention calculates the anti-slip, anti-floating and base stress unevenness coefficients based on the sluice design specifications of the sluice design specifications, which can ensure that the calculation results meet the engineering design specifications; the automated calculation process eliminates human factors and ensures the uniformity and reliability of the calculation results; by comparing the calculation results with the standard values, it helps to discover potential problems in the design and make timely optimization adjustments.

[0050] Furthermore, the timing processing and load transfer mechanism between different working condition combinations of the present invention enables the system to automatically identify the sequence relationship between the working condition combinations, ensure the reasonable transfer of loads, and avoid omissions or repeated calculations; through the load transfer mechanism, the effect of loads under complex working conditions can be more accurately reflected, and the accuracy of calculation results can be improved; when the working condition combination is adjusted, the system can quickly adapt to the new working condition settings and reduce repetitive workload in the calculation process.

[0051] Furthermore, the present invention provides a system for stability calculation based on the BIM platform. The system is modularly designed and can coordinate the work of different modules. The system realizes a fully automated process from the creation of the gate station calculation unit to the output of the calculation book, which improves work efficiency; during the calculation process, the data is linked to the BIM platform in real time to ensure data update and synchronization to avoid data inconsistency; the modular structure of the system facilitates subsequent functional expansion and maintenance, and can adapt to future changes in demand; users only need to select through the operation classification catalog, and rely on external instructions to complete parameter setting and calculation, which is simple to operate and reduces the complexity of user operations.

[0052] Furthermore, the present invention displays a start button and prompts the user to start a specific load module. The start button displayed on the BIM platform can automatically prompt the user which load modules can be started, thereby optimizing the user interaction experience; by directly enabling a specific load module, the user operation process is simplified and the possibility of misoperation is reduced; by combining button instructions with module startup, the efficiency of load setting is ensured and unnecessary waiting time during operation is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 It is a functional architecture schematic diagram of the present invention;

[0054] Figure 2 A schematic diagram of the solver algorithm flow of the present invention;

[0055] Figure 3 A schematic diagram of a computing unit command for starting up a specific embodiment;

[0056] Figure 4 A schematic diagram of a calculation unit parameter writing window in a specific embodiment;

[0057] Figure 5 A schematic diagram of a combined command for creating a working condition for starting a specific embodiment;

[0058] Figure 6 A schematic diagram of adding a deadweight load to a specific embodiment;

[0059] Figure 7 A schematic diagram of adding a hydrostatic pressure load for a specific embodiment;

[0060] Figure 8 A schematic diagram of adding uplift pressure load for a specific embodiment;

[0061] Fig. 9 A schematic diagram of adding earth pressure load to a specific embodiment;

[0062] Fig.10 A schematic diagram of adding silt pressure load to a specific embodiment;

[0063] Fig.11 A schematic diagram of adding wave pressure load to a specific embodiment;

[0064] Fig.12 A schematic diagram of adding arbitrary point loads for a specific embodiment;

[0065] Fig.13 A schematic diagram of adding arbitrary surface loads for a specific embodiment;

[0066] Fig.14 It is a schematic diagram of the use of the solver of a specific embodiment;

[0067] Fig.15 A schematic diagram of starting a calculation report output command window for a specific embodiment;

[0068] Fig.16 The output effect of the calculation book is a specific embodiment. DETAILED DESCRIPTION

[0069] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments to facilitate a clear understanding of the present invention, but they do not constitute a limitation on the present invention.

[0070] like Figure 1 As shown, the present invention provides a method for calculating the stability of a gate station based on a BIM platform, comprising the following steps:

[0071] Display the 3D design model data of the gate station to be calculated in the BIM platform;

[0072] Determine the calculation unit and its parameters based on the displayed three-dimensional design data of the gate station to be calculated;

[0073] Set the working condition combination and its parameters for the calculation unit;

[0074] Set the corresponding load distribution for each working condition combination;

[0075] The parameters of the calculation unit, the set working condition combination and its parameters and load distribution are saved in the BIM platform through three-dimensional features;

[0076] The solver reads the three-dimensional feature data saved in the BIM platform to calculate all load distributions under the specified working conditions, calculate the anti-slip, anti-floating and base stress unevenness coefficients, and save the calculation results and process to the BIM platform;

[0077] According to external instructions, the three-dimensional features of the gate station to be calculated saved in the BIM platform are called and the specified data is extracted and imported into the set template for output.

[0078] The present invention also provides a gate station stability calculation system based on a BIM platform, the system comprising:

[0079] BIM platform, used to display the 3D design model data of the gate station to be calculated, and provide the operation interface of each functional module and the hierarchical directory of the model structure tree, which is used to display the name of the created calculation unit, the name of the working condition combination and the name of the load;

[0080] Analysis and calculation modules, including:

[0081] A calculation unit creation module is used to determine the gate station calculation unit to be calculated based on external instructions, and set the calculation unit parameters; associate the parameters with the selected gate station calculation unit and save them on the BIM platform; the created gate station calculation unit node is displayed as a first-level object in the structure tree hierarchical directory; a working condition combination creation module is used to select the gate station calculation unit node in the structure tree hierarchical directory based on external instructions, locate the specific gate station calculation unit, and set the working condition combination and its parameters; associate the working condition combination parameters with the selected gate station calculation unit and save them, and add the working condition combination node to the next level of the calculation unit node in the structure tree hierarchical directory; the calculation unit refers to the components of the gate station and their combination;

[0082] The load distribution creation module is used to select the load condition combination node in the structure tree hierarchical directory based on external instructions, locate the specific calculation load condition combination, and set the direct load distribution parameters; associate the direct load distribution parameters with the selected load condition combination and save it, and add the load distribution node to the next level of the load condition combination node in the structure tree hierarchical directory;

[0083] The feature encapsulation module is used to encapsulate the gate station calculation unit parameters generated by the calculation unit creation module, the working condition combination parameters generated by the working condition combination creation module, and the load distribution parameters generated by the load distribution creation module into three-dimensional features, and save them to the BIM platform to realize persistent storage and graphical distribution display;

[0084] The calculation output module is used to select the calculation unit name or working condition combination name of the gate station in the hierarchical directory based on the instruction, locate the specific data object, extract the saved data, import it into the set template, and then output the calculation report;

[0085] The solver module is used to select the gate station calculation unit and its specified working condition combination in the hierarchical catalog based on instructions, calculate the anti-slip, anti-floating and base stress uneven coefficient indicators, and encapsulate the calculation results as three-dimensional feature data and save them to the BIM platform;

[0086] The structure tree hierarchical directory structure of the BIM platform includes:

[0087] First level: calculation unit name;

[0088] Second level: working condition combination name;

[0089] Level 3: Load distribution name.

[0090] The principle of the present invention is further explained below with reference to specific embodiments.

[0091] This embodiment performs sluice stability calculation based on the BIM platform. Users interact by operating the BIM platform interface, and the system performs the corresponding calculation steps in the background. The specific steps include the creation and parameter setting of the calculation unit, the setting of the working condition combination and load distribution, and the final calculation and output. Each module of the system automatically processes in the background according to the operation instructions to ensure that the calculation results are consistent with the BIM design data. Specifically, the following steps are included:

[0092] Step 1: Display the 3D design model data of the gate station to be calculated

[0093] User Action:

[0094] like Figure 3 As shown, the user logs in to the BIM platform and opens the gate station project to be calculated.

[0095] The BIM platform loads the three-dimensional design data of the gate station and displays the complete three-dimensional model of the gate station on the interface, including various components such as gate chambers, gate piers, gate gates, gate fixing structures, etc.

[0096] Users can use the BIM platform's view operation tools to rotate, zoom or pan the 3D view to view various parts of the design data.

[0097] The toolbar at the bottom of the BIM platform interface is equipped with shortcut keys for starting each module. The left side of the BIM platform displays a pull-down model structure tree hierarchy directory, and the right side displays a model view area.

[0098] Backend system functions:

[0099] The BIM platform loads and displays 3D design model data and extracts 3D models based on preset file formats (such as 3dxml or CATPart).

[0100] The 3D model is rendered in the background to ensure that the display of the model is consistent with the design data in the database and supports real-time updates.

[0101] Step 2: Determine the stability analysis calculation unit and its parameters

[0102] User Action:

[0103] In the BIM platform interface, the user uses the mouse to click in the three-dimensional design data of the gate station and select the gate station components to be calculated (such as the gate chamber, base, etc.) as the calculation unit.

[0104] like Figure 3 As shown in the figure, the user expands the "Sluice Station Analysis and Calculation" section in the toolbar at the bottom of the interface → clicks the "Create Calculation Unit" button → the Calculation Unit dialog box pops up. The user can continue to click on other selected calculation units, and the Calculation Unit dialog box displays the detailed parameter setting page of the node.

[0105] like Figure 4 As shown, the user can modify or input the parameters of the calculation unit as needed, such as the sluice level, base reference plane, base parameters, etc. Parameters can be entered through text boxes or drop-down menus. The modeling scale is 1:1, the x-axis of the coordinate system is in the direction of the water flow, and the z-axis is the elevation direction; the base plane reference elevation is used for subsequent working condition water level calculations, and the length and width in the direction of the water flow will participate in the calculation of the cross-section resistance distance. The foundation type soil foundation or rock foundation will determine the anti-sliding calculation model, and the relevant parameter settings should meet the requirements of the specification.

[0106] The user clicks OK in the dialog box to save the result. At this time, a calculation unit node is created in the hierarchical directory of the model structure tree and the user exits. The node can be edited and updated by double-clicking it, and copy and paste are also supported.

[0107] Backend system functions:

[0108] The calculation unit creation module receives the calculation unit nodes and their parameters (such as sluice level, base reference plane, base parameters, etc.) set by the user in the background.

[0109] The system associates the input parameters with the calculation unit nodes according to the calculation unit information in the BIM model, and saves the information to the database in the background to ensure that the three-dimensional data is synchronized with its physical properties.

[0110] Step 3: Set the working condition combination and its parameters

[0111] User Action:

[0112] like Figure 5 As shown, the user selects a created computing unit in the hierarchical directory (for example, selects the "computing unit 2" node).

[0113] The user clicks the working condition combination creation button in the toolbar at the bottom of the interface to pop up the working condition combination setting page.

[0114] The user selects the appropriate working condition combination name (such as completion, normal water storage level, design flood level, verification flood level, maintenance, etc.), working condition stress condition (symmetrical or asymmetrical), combination condition (basic combination, special combination I, special combination II, etc.) and characteristic water level (upstream water level, downstream water level, design flood level, verification flood level, etc.) according to the actual working conditions, and enters the corresponding working condition combination parameters. Click OK to exit. The upstream and downstream water levels and the base plane reference elevation in the current calculation unit of the parent node jointly determine the upstream and downstream water depths. For some common loads, such as the deadweight of the structure, load transfer can be set, that is, the load scope in one working condition combination is also effective in another working condition to avoid repeated application of the same load. This feature is only applicable to loads that are not related to the water level, such as gravity or live loads.

[0115] If the user does not specify a calculation unit in the structure tree hierarchical directory, the user will directly exit after completing the setting on the working condition setting page and click OK without saving the result. The present invention can ensure the reasonable organization of the model structure tree through the node context dependency.

[0116] Double-click the calculation unit and its sub-directories to edit and update, and support copying and pasting (including byte node loads).

[0117] Backend system functions:

[0118] The working condition combination creation module receives parameters such as working condition name, force condition, combination condition, etc. input by the user.

[0119] The system generates operating condition combination data based on the operating condition combination parameters, and associates it with the created gate station calculation unit to ensure that the operating condition combination data is consistent with the calculation unit.

[0120] The system saves the working condition combination and parameters in the database of the BIM platform and adds the working condition name to the next level of the hierarchical directory.

[0121] Step 4: Set up direct load distribution

[0122] The load combination node is used to store load distribution information, and the load combination should meet the relevant requirements of the specification.

[0123] User Action:

[0124] The user selects a specific working condition combination (such as "working condition under design water level") in the classification catalog. According to the selected working condition combination, the toolbar at the bottom of the interface will light up the load distribution setting start button corresponding to the working condition combination.

[0125] The user enters the load distribution creation page by clicking the selected load distribution setting start button.

[0126] Use the mouse to click to select the selected area, i.e. the load distribution area (e.g. select the top area of ​​the lock chamber to set the deadweight, water weight and other loads), and interactively pick the target geometry, which must be a solid. The name of the selected area entity will be displayed in the load distribution creation page according to the picked content.

[0127] The user enters the specific parameters of the load, such as inertia force, etc., in the load distribution creation page (i.e. the corresponding load setting dialog box) and sets them through the text box. If the user specifies the calculation unit and working condition combination in the structure tree hierarchy directory, after the user clicks OK on the load distribution creation page, the system will create a load subnode under the working condition and exit; otherwise, after clicking OK, it will exit directly without saving.

[0128] This system has corresponding load distribution creation page dialog boxes based on different load distribution settings, which are used to prompt users and receive corresponding parameters of each load distribution input by users.

[0129] Specifically, Figure 6 As shown in the figure, the process of setting the self-weight load distribution for a specific working condition combination is as follows: Click the "Self-weight" button in the toolbar, and then the self-weight load dialog box pops up. Interactively pick the target geometry, which must be a solid. The user sets the density in the self-weight load dialog box; secondly, if the seismic inertia force needs to be considered (optional), check the seismic effect, enter the representative value of the seismic acceleration, the seismic effect reduction factor, the dynamic distribution factor, etc., and the seismic inertia force will be applied according to the pseudo-static method.

[0130] Specifically, Figure 7 As shown in the figure, the process of setting the hydrostatic pressure load distribution for a specific working condition combination is as follows: Click the "Hydrostatic Pressure" button in the toolbar, and then the hydrostatic pressure load dialog box pops up. The user interactively picks the hydrostatic pressure range, which consists of two straight lines, the line of action (vertical direction) and the guide line (cross-flow direction), which must be straight lines. The user sets the water density and water level reference direction, such as upstream or downstream, through the corresponding dialog box.

[0131] Specifically, Figure 8 As shown in the figure, the process of setting the uplift pressure load distribution for a specific working condition combination is as follows: click the "Uplift Pressure" button in the toolbar, and then the Uplift Pressure dialog box pops up. The user interactively picks the uplift pressure action range, which consists of two straight lines, the action line (along the water flow direction) and the guide line (across the water flow direction), which must be straight lines. The user sets the water density and whether there is a drainage hole or a grouting curtain through the corresponding dialog box; if so, set the ratio from the center line of the drainage hole to the upstream end and the seepage pressure intensity coefficient α (generally 0.25).

[0132] Specifically, Fig. 9 As shown in the figure, the process of setting the soil pressure load distribution for a specific working condition combination is as follows: Click the "Soil Pressure" button in the toolbar, and then the soil pressure dialog box pops up. The user interactively picks the soil pressure range, which consists of two straight lines, namely the wall back line (vertical direction) and the wall bottom line (between the wall toe and the wall heel), which must be straight lines. The user selects the soil pressure calculation model through the corresponding dialog box, sets the bulk density of the backfill behind the wall, and related parameters such as the internal friction angle, external friction angle, and backfill angle of the wall.

[0133] Specifically, Fig.10As shown in the figure, the process of setting the silt pressure load distribution for a specific working condition combination is as follows: Click the "Silt Pressure" button in the toolbar, and then the silt pressure dialog box pops up. The user interactively picks the silt pressure action range, which consists of two straight lines, namely the silt line (vertical direction) and the guide line (width direction), which must be straight lines. The user sets the silt buoyancy density and internal friction angle through the corresponding dialog box.

[0134] Specifically, Fig.11 As shown in the figure, the process of setting the wave pressure load distribution for a specific working condition combination is as follows: Click the "Wave Pressure" button in the toolbar, and then the wave pressure dialog box pops up. The user interactively picks the wave pressure action range, which consists of two straight lines, namely the waterfront line (vertical direction) and the gate sill line (cross-flow direction), which must be straight lines. The user sets the wind zone parameters and gate front parameters through the corresponding dialog box, and determines the calculation water depth H parameter according to the current working condition.

[0135] Specifically, Figure 12-13 As shown in the figure, the process of setting the surface load distribution for a specific load combination is as follows: Click the "Point / Surface Load" button in the toolbar, and then the Point / Surface Load dialog box pops up. The user interactively picks the surface action range. The user sets the corresponding parameters through the corresponding dialog box.

[0136] Backend system functions:

[0137] The load distribution creation module receives the load distribution area and parameters (such as deadweight, water weight, uplift pressure, etc.) selected by the user.

[0138] The system calculates the load distribution model in the background according to the selected area and associates the load distribution with the specified working conditions to ensure the accuracy and completeness of the data.

[0139] The generated load distribution information is saved in the database of the BIM platform, and the load distribution name is displayed in the structure tree hierarchy directory.

[0140] Step 5: Encapsulate 3D features and save to BIM platform

[0141] No user action is required:

[0142] After the system confirms that the calculation unit, working condition combination and load distribution of the gate station have been set correctly, the feature packaging module will perform three-dimensional feature packaging on all calculation unit parameters, working condition combination parameters and load distribution data.

[0143] The encapsulated feature data is stored in the BIM platform database and associated with the relevant 3D design data to ensure efficient access and update of data. Secondly, it can be visualized and presented in the BIM platform view area.

[0144] Step 6: Calculation and Analysis

[0145] User Action:

[0146] like Fig.14 As shown, the user selects the specified operating condition combination in the calculation unit to be calculated in the structure tree hierarchical directory.

[0147] The user double-clicks the gate station calculation unit selected in the hierarchical directory, and the working condition combination dialog box pops up. Click "++" on the right to expand it and trigger the solver to perform calculations.

[0148] Backend system functions:

[0149] After the solver receives the combined data of operating conditions selected by the user, it performs calculations according to the design specifications for the sluice gate.

[0150] like Figure 2 As shown, the solver calculates each working condition in the working condition combination selected under the unit in turn, as well as the load distribution parameters under each working condition, to generate calculation results.

[0151] The system calculates the anti-sliding, anti-floating and base stress non-uniformity coefficients based on the calculated characteristic data, and generates the calculation results for display in the load case combination dialog box. The dialog box also displays the allowable values ​​in the code and their comparison with the calculation results.

[0152] The above calculation process and results are saved as three-dimensional feature data and encapsulated in the three-dimensional design model of the gate station to ensure the accuracy and visualization of the data.

[0153] Specifically, the solver first obtains the calculation unit information; traverses the predecessor working condition combination of the currently selected working condition combination to identify the transferable load; if any, it is added to the current working condition; traverses the direct loads under the current working condition to check the load integrity; calculates the centroid, concentrated force and force arm of all loads (direct loads and transferred loads); solves indicators such as anti-slip, anti-floating, and base stress unevenness coefficient according to the specifications.

[0154] Step 7: Output the results

[0155] User Action:

[0156] like Fig.15 As shown, the user selects a calculation unit in the hierarchical directory and clicks the "Calculation Book" button in the toolbar.

[0157] like Fig.16 As shown, the system pops up the calculation report dialog box, the user selects the required file name and sets the output parameters. The user selects the desktop path for the calculation report output through the dialog box; uses the built-in format (customizable by the user); whether the output mode is simple or detailed; whether to preview after output, etc.

[0158] Backend system functions:

[0159] The calculation output module extracts the calculation results of the corresponding calculation unit according to the user's instructions, and checks the calculation unit, working condition combination, and load integrity of the current model to see if they meet the basic requirements of the specification; if so, it will extract the stability index information of all working condition combinations.

[0160] The system imports the calculation results into the specified output template, generates a complete report or calculation book, and provides it for users to download or print. The calculation book is currently output on the desktop, and the file name can be customized by the user; if the user checks the preview option, the calculation book will automatically open WPS or OFFICE office software to preview the calculation book after the calculation book is output. Fig.16 shown.

[0161] The present invention is more convenient to use than the prior art, and realizes the integration of three-dimensional design and analysis calculation in a unified collaborative design environment. The calculation results can be directly used to guide and review the design plan, improve business continuity, help to give full play to the advantages of three-dimensional design, and improve design quality.

[0162] The present invention is more efficient in calculation, and many trivial calculation processes in standard calculations are encapsulated into a programmed solver. Users can interactively input relevant calculation parameters and options, and the solver can provide feedback on the analysis results. Compared with manual calculation methods, the calculation speed is faster and more efficient, and the calculation results are more accurate and reliable.

[0163] The present invention is more powerful and uses the three-dimensional design feature mechanism to encapsulate objects in the analysis and calculation process, such as calculation units, working conditions, loads, etc., to achieve visual interaction, associated updates, and persistent storage, so that the analysis and calculation can achieve knowledge engineering reuse like the three-dimensional model, guide designers to design, and significantly improve the friendliness of the analysis and calculation.

[0164] The present invention can realize mutual feedback of results. In the past, traditional design could only extract the required parameters from the design plan to the analysis and calculation model unidirectionally. Now, through characterization, the analysis and calculation results are also saved as a feature, so that the three-dimensional design model can also directly quote the results, realize mutual feedback and interoperation, and make calculation-driven design possible.

[0165] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

Claims

1. A method for calculating the stability of a gate station based on a BIM platform, characterized in that: The following steps are involved: Display the 3D design model data of the gate station to be calculated in the BIM platform; Determine the calculation unit of the gate station to be calculated and its parameters based on the displayed three-dimensional design model data of the gate station to be calculated; Set the working condition combination and its parameters for the gate station calculation unit to be calculated; Set the corresponding load distribution for each working condition combination; The gate station calculation units to be analyzed and their parameters, working condition combinations and their parameters, and load distribution are encapsulated using three-dimensional features and saved in the BIM platform; The solver calculates the anti-slip, anti-floating and base stress unevenness coefficient indicators under the specified working conditions through the three-dimensional feature calculation data saved in the BIM platform, and encapsulates the calculation results and process using three-dimensional features and saves them to the BIM platform; According to external instructions, the three-dimensional features of the gate station to be calculated saved in the BIM platform are called, and the specified calculation data is extracted and imported into the set template to output the calculation report.

2. A method according to claim 1, characterized in that: The parameters of the gate station calculation unit include the sluice level, base reference plane, and base parameters; the base parameters include base reference elevation, base length in the downstream direction, base width in the direction perpendicular to the water flow, foundation type, and its corresponding foundation parameters.

3. A method according to claim 1, characterized in that: The parameters of the working condition combination include: working condition name, working condition stress condition, combination condition and characteristic water level.

4. A method according to claim 1, characterized in that: The load distribution includes: deadweight, water weight, hydrostatic pressure, uplift pressure, soil pressure, silt pressure, wind pressure, wave pressure, ice pressure, frost heave force of soil, earthquake load and other loads; each working condition combination corresponds to several of the above load distributions.

5. A method according to claim 2, characterized in that: The process of setting any load distribution for any working condition combination includes: picking up corresponding points, lines and / or surfaces as the selected area of ​​load distribution through the three-dimensional design model data of the gate station to be calculated displayed in the BIM platform, and writing the parameters corresponding to the load through external instructions.

6. A method according to claim 2, characterized in that: The solver calculates the anti-sliding, anti-floating and base stress unevenness coefficients based on the sluice design specifications; the solver generates a comparison result between the calculation results of the anti-sliding, anti-floating and base stress unevenness coefficients and the corresponding agreed allowable values ​​in the sluice design specifications, and encapsulates it as a three-dimensional feature.

7. A method according to claim 4, characterized in that: There is a temporal sequence between different working condition combinations. Before distributing the load for any working condition combination, the preceding working condition combination of the working condition combination is traversed to identify whether there is a transferable load. If so, it is used as the transfer load of the working condition combination; the anti-slip, anti-floating and base stress unevenness coefficients are calculated based on the direct load distribution and the transfer load distribution.

8. A gate station stability calculation system based on a BIM platform, characterized in that: The system is used to implement the gate station stability calculation method based on the BIM platform as described in any one of claims 1 to 7, comprising: BIM platform, used to display the 3D design model data of the gate station to be calculated, and provide the operation interface of each functional module and the hierarchical directory of the model structure tree, which is used to display the name of the created calculation unit, the name of the working condition combination and the name of the load; Analysis and calculation modules, including: A calculation unit creation module is used to determine the gate station calculation unit to be calculated based on external instructions, and set the parameters of the calculation unit; associate the parameters with the selected gate station calculation unit and save them to the BIM platform; the created gate station calculation unit node is displayed as a first-level object in the structure tree hierarchical directory; The working condition combination creation module is used to select the gate station calculation unit node in the structure tree hierarchical directory based on external instructions, locate the specific gate station calculation unit, and set the working condition combination and its parameters; associate the working condition combination parameters with the selected gate station calculation unit and save it, and add the working condition combination node to the next level of the calculation unit node in the structure tree hierarchical directory; The load distribution creation module is used to select the load condition combination node in the structure tree hierarchical directory based on external instructions, locate the specific calculation load condition combination, and set the direct load distribution parameters; associate the direct load distribution parameters with the selected load condition combination and save it, and add the load distribution node to the next level of the load condition combination node in the structure tree hierarchical directory; The feature encapsulation module is used to encapsulate the gate station calculation unit parameters generated by the calculation unit creation module, the working condition combination parameters generated by the working condition combination creation module, and the load distribution parameters generated by the load distribution creation module into three-dimensional features, and save them to the BIM platform to realize persistent storage and graphical distribution display; The calculation output module is used to select the calculation unit name or working condition combination name of the gate station in the hierarchical directory based on the instruction, locate the specific data object, extract the saved data, import it into the set template, and then output the calculation report; The solver module is used to select the gate station calculation unit and its specified working condition combination in the hierarchical catalog based on instructions, calculate the anti-slip, anti-floating and base stress uneven coefficient indicators, and encapsulate the calculation results as three-dimensional feature data and save them to the BIM platform; The structure tree hierarchical directory structure of the BIM platform includes: First level: calculation unit name; Second level: working condition combination name; Level 3: Load distribution name.

9. A system according to claim 8, characterized in that: The load distribution creation module includes self-weight, water weight, hydrostatic pressure, uplift pressure, soil pressure, silt pressure, wind pressure, wave pressure, ice pressure, soil frost heave force, earthquake load and other load setting modules; The BIM platform displays the start buttons of all load calculation modules and lights up the start button of the load setting module corresponding to the specified working condition combination under the gate station calculation unit to be calculated, to prompt that the start instruction of the load setting module can be received.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the gate station stability calculation method based on the BIM platform described in any one of claims 1 to 7 is implemented.

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