Urban Tunnel Anti-floating Calculation Method and System Based on Multi-source Design Data Fusion

Abstract

The present invention relates to a method and system for calculating the anti-floating of urban tunnels based on the fusion of multi-source design data. The method includes: obtaining multi-source data for the design of the current urban tunnel project (general data, geological exploration data, road geometric design data, tunnel structure design data); standardizing the calculation parameter form and performing data fusion processing; selecting calculation conditions and determining the main constraint conditions (anti-floating water level, anti-floating stability safety factor); checking the anti-floating stability of the tunnel structure; performing special calculations for anti-floating treatment measures; visualizing the calculation results in graphics and tables; and outputting the main calculation results to a calculation book in a unified format. The present invention has the characteristics of good user experience, high calculation accuracy and fast speed, and can effectively alleviate the problems of low manual calculation efficiency, easy errors and time-consuming rework during design changes of traditional engineering technicians. It is mainly applied to underground projects such as urban open-cut tunnels, and is particularly suitable for the design of tunnel projects constructed by the urban open-cut method.

Description

Technical Field

[0001] The present invention belongs to the technical field of urban tunnel engineering design, and particularly relates to a method and system for calculating the anti-floating of urban tunnels based on the fusion of multi-source design data. Background Technique

[0002] With the development of China's national economy and the deepening of the urbanization process, urban tunnel engineering, as an efficient traffic organization method, is being more and more widely used in the construction of urban traffic infrastructure.

[0003] Urban tunnels, especially open-cut tunnels, face the problem of anti-floating stability during construction and operation due to their shallow burial depth. When the anti-floating stability does not meet the requirements of design codes and standards, special anti-floating design is required. At present, these design calculations are mainly completed by engineering and technical personnel relying on long-term accumulated design experience. Because they face multi-source design data as calculation input parameters, when design changes occur, multiple reworks are required. Therefore, the efficiency of calculation and analysis work is low, and moreover, the accuracy of calculation and analysis work is difficult to guarantee, and it consumes a lot of time and energy.

[0004] Learning from the standardization ideas of highway and urban road engineering design, by sorting out the design calculation and analysis process of urban tunnel engineering, the standard specifications, formulas and limits involved in the calculation, formulating a calculation parameter form and an anti-floating calculation book in a standard format, and then developing a parametric calculation software system to assist engineering and technical personnel in the anti-floating design work of urban tunnels will greatly improve the accuracy and work efficiency of calculation and analysis, and is of great significance to the engineering quality and construction progress of urban tunnels. Summary of the Invention

[0005] The present invention provides a method and system for calculating the anti-floating of urban tunnels based on the fusion of multi-source design data to solve the problems of low efficiency of existing urban tunnel anti-floating design and large workload of design changes.

[0006] To solve the above problems, the technical solution adopted by the present invention is: a method for calculating the anti-floating of urban tunnels based on the fusion of multi-source design data, which is characterized in that the steps are as follows:

[0007] 1) Obtain multi-source data for the design of the current urban tunnel project:

[0008] Overall data, geological exploration data, road geometric design data, tunnel structure design data;

[0009] 2) Standardize the calculation parameter form and perform data fusion processing:

[0010] Preprocess the obtained design data and generate corresponding structured data forms according to the standard data templates respectively; Based on the standardized design parameter form, integrate from the perspective of the anti-floating calculation process and the mechanism of the tunnel structure's self-weight resisting buoyancy to form a data form for urban tunnel anti-floating calculation.

[0011] 3) Calculation condition selection and determination of main constraint conditions:

[0012] Select different calculation conditions for the construction stage and the operation stage, and determine the main calculation constraint conditions such as the anti-floating water level and the anti-floating stability safety factor.

[0013] 4) Conduct anti-floating stability check for the tunnel structure:

[0014] Based on the data in the anti-floating calculation form and the selected calculation conditions and constraint conditions, call the anti-floating calculation system to conduct anti-floating stability check for the tunnel structure.

[0015] 5) Conduct special calculation for anti-floating treatment measures:

[0016] According to the check result in step 4), judge whether the anti-floating stability requirement is met. If it is met, output the intermediate result data and save it to the log file. If it is not met, conduct special calculation for the anti-floating treatment measures.

[0017] 6) Visualize the calculation results with graphics and tables:

[0018] Use the progress bar and various graphic controls in the system interface to display the calculation status and calculation process data; Use tables to display the detailed calculation data.

[0019] 7) Output the main calculation results to a calculation book in a unified format:

[0020] According to the calculation parameters, calculation conditions, constraint conditions and calculation intermediate log selected during the urban tunnel anti-floating calculation process by the above method steps, and according to the actual application scenario, output a calculation book containing detailed calculation data and results in two formats of preliminary design and construction drawing design with sections or the whole tunnel as the object.

[0021] Furthermore, in step 1), the overall data, geological exploration data, road geometric design data and tunnel structure design data are from different types of format files generated by multiple heterogeneous design systems. The overall data, geological exploration data, road geometric design data and tunnel structure design data are obtained through the traditional handover document list during the design process, including project-related information files, survey and design drawings, three-dimensional geographic information models, building information models, etc.

[0022] Furthermore, in step 2), the structured data form specifically includes a project overall information table, a geological exploration information table, a road geometric design information table, and a tunnel structure design table.

[0023] Furthermore, in step 6), the calculation results are visualized using graphs and tables: The overall design calculation of the project is reflected by a progress bar using the developed interface, showing the total number of segments of the current tunnel project, the number of segments passing the anti-floating check, and the number of segments failing the anti-floating check; the calculation status of each segment is distinguished by different colors, including three states: current check, already checked, and not yet checked; the detailed calculation data of each segment is displayed in a table, including segment self-weight, counterweight, buoyancy value, anti-floating stability coefficient, uplift force provided by anti-floating piles, number of anti-floating piles, diameter of anti-floating piles, etc.

[0024] A system adopted by the urban tunnel anti-floating calculation method based on multi-source design data fusion is characterized by including:

[0025] An acquisition module for acquiring multi-source data for the design of the current urban tunnel project;

[0026] A first processing module for calculating parameter form standardization and data fusion processing;

[0027] A second processing module for calculating working condition selection and determining main constraint conditions;

[0028] A third processing module for performing anti-floating stability check on the tunnel structure;

[0029] A fourth processing module for performing special calculations for anti-floating treatment measures;

[0030] A fifth processing module for visualizing the calculation results using graphs and tables;

[0031] A sixth processing module for outputting the main calculation results to a calculation book in a unified format.

[0032] Compared with the prior art, the present invention has the following advantages:

[0033] 1) The present invention performs anti-floating stability check on the tunnel structure by acquiring multi-source data for the design of the current urban tunnel project, calculating parameter form standardization and data fusion processing, and calculating working condition selection and determining main constraint conditions; special calculations can be performed for anti-floating treatment measures, the calculation results are visualized using graphs and tables, and the main calculation results are output to a calculation book in a unified format.

[0034] 2) The method of the present invention can improve the efficiency of anti-floating calculation and analysis of urban tunnels, and at the same time reduce the difficulty of calculation review and design change, thereby improving the engineering quality and construction progress of urban tunnels.

[0035] 3) The characteristics of high calculation accuracy and fast speed of the present invention can effectively alleviate the problems of low manual calculation efficiency, easy error, and time-consuming and laborious rework during design change of traditional engineering technicians. Brief Description of the Drawings

[0036] Figure 1 It is a flowchart of the urban tunnel anti - floating calculation method based on multi - source design data fusion in the embodiment of the present invention;

[0037] Figure 2 It is a schematic diagram of the multi - source design data concept model in the embodiment of the present invention;

[0038] Figure 3 It is a schematic diagram of the algorithm flow of the anti - floating stability check calculation for urban tunnels in the embodiment of the present invention;

[0039] Figure 4 It is a schematic diagram of the calculation and analysis process of the anti - floating treatment measures for urban tunnels in the embodiment of the present invention;

[0040] Figure 5 It is a schematic diagram of the three - dimensional geometric entity shape of the urban tunnel segment object in the embodiment of the present invention; where a is single - layer with equal width and height; b is single - layer with equal width and variable height; c is single - layer with variable width and equal height; d is single - layer with curved and inclined variable width; e is laminated with an open section; f is laminated with a buried section;

[0041] Figure 6 It is a schematic diagram of the calculation of the drainage volume of the urban tunnel segment in the embodiment of the present invention;

[0042] Figure 7 It is a schematic diagram of the summary table of the anti - floating calculation results of the open section of the urban tunnel in the embodiment of the present invention;

[0043] Figure 8 It is a schematic diagram of the summary table of the anti - floating calculation results of the buried section of the urban tunnel in the embodiment of the present invention;

[0044] Figure 9 It is a module composition diagram of the urban tunnel anti - floating calculation system based on multi - source design data fusion in the embodiment of the present invention. Detailed Embodiment

[0045] Next, the technical solution of the present invention will be clearly and completely described in conjunction with the drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0046] The embodiment of the present invention provides a method for calculating the anti - floating of urban tunnels based on multi - source design data fusion, as Figure 1 shown, this method includes:

[0047] 1. The overall data, geological exploration data, road geometric design data, and tunnel structure design data for the current urban tunnel project design are derived from different types of file formats generated by multiple heterogeneous design systems, including DWG, DGN, PDF, XLS, TXT, etc.; the above-mentioned materials can be obtained through traditional handover material lists during the design process, such as the "Mutual Submission Material List for Survey and Design"; the above-mentioned materials include project-related information files, survey and design drawings, 3D geographic information models, building information models, etc.; the calculation parameter data in the above-mentioned materials can be extracted manually or automatically through developed software middleware programs.

[0048] Specifically, the calculation parameter data for the current urban tunnel project design can be extracted manually or automatically through developed software middleware programs. Taking a common engineering design application scenario as an example, if the road design of the current urban tunnel project is completed using the software "Weidi Series Software HintCAD", the road geometric design data can be manually extracted from the design documents and design drawings in the traditional handover material list during the design process, such as the "Mutual Submission Material List for Survey and Design", to obtain data such as the road geometric plane, longitudinal section, and cross-section width, or can be directly read and parsed from the ground elevation file, plane file, longitudinal section file, and cross-section width file provided by the "Weidi Series Software HintCAD" through the developed software middleware program to obtain data such as the road geometric plane, longitudinal section, and cross-section width; if the road design of the current urban tunnel project is completed using the software "CNCCBIM OpenRoads", the road geometric design data can be directly read and parsed from the "Road Engineering Information Model" through the developed software middleware program to obtain data such as the road geometric plane, longitudinal section, and cross-section width.

[0049] 2. Standardize the calculation parameter form and perform data fusion processing. Preprocess the obtained design data and generate corresponding structured data forms according to the standard data template, specifically including the project overall information form, geological exploration information form, road geometric design information form, and tunnel structure design form; as Figure 2 shown, based on the above standardized design parameter forms, a data form for urban tunnel anti-floating calculation, namely the "Anti-floating Stability Check Table" and the "Anti-floating Disposal Measure Calculation Table", is formed from the perspective of the anti-floating check process and the mechanism of the tunnel structure's self-weight resisting buoyancy.

[0050] The "Anti-floating Stability Check Table" uses an object-oriented method to define and store calculation parameter variables and data values with tunnel segments as objects. It establishes mapping relationships through the "Overall Project ID" and the "Overall Project Information Table", through the "Geological Information ID" and the "Geological Exploration Information Table", through the "Designer ID" and the "Designer Table", and through the "Check Segment ID" and the "Tunnel Segment Calculation Table". In addition, the "Anti-floating Stability Check Table" mainly stores key calculation data such as "Buoyancy Force F", "Anti-buoyancy Force Fk", "Anti-floating Safety Factor K", "Required Anti-buoyancy Force for Stability Fk2", and "Check Status state". Among them, the value of the "Anti-floating Safety Factor K" comes from the anti-floating safety factor value adopted for the current project defined by the user, and the values of "Buoyancy Force F" and "Anti-buoyancy Force Fk" come from the calculation results of the "Tunnel Segment Calculation Table". The anti-floating stability check is realized by comparing the values of K and Fk / F.

[0051] As Figure 2 shown, the "Anti-floating Disposal Measure Calculation Table" uses an object-oriented method to define and store calculation parameter variables and data values with tunnel segments as objects. It establishes mapping relationships through the "Check Result ID" and the "Anti-floating Stability Check Table", through the "Check Segment ID" and the "Tunnel Segment Calculation Table", and through the "Anti-floating Disposal Measure ID" and the "Design User Interaction Parameter Table". In addition, the "Anti-floating Disposal Measure Calculation Table" mainly stores key calculation data such as "Length of Anti-floating Pile Lkfz", "Number of Anti-floating Piles Nkfz", "Diameter of Anti-floating Pile Dkfz", "Cross-section Type of Anti-floating Pile C", "Thickness of Pressurized Counterweight Hyd", and "Outward Projection Dimension of Bottom Plate Lwt". The corresponding data values are calculated and stored according to the anti-floating disposal type selected by the current user in the "Design User Interaction Parameter Table".

[0052] As Figure 2 shown, the object types of tunnel segments are mainly divided into three types according to the buried depth and professional design habits, namely "Open Section", "Covered Section", and "Pump House", not limited to the conventional single-layer urban tunnel structure, but also including multi-layer and combined type urban tunnel projects.

[0053] As Figure 5 shown, the three-dimensional geometric entities of tunnel segment objects show different types in engineering design due to different geometric plane and longitudinal section designs of urban roads. Single-layer tunnel projects mainly include regular shapes such as equal width and height, equal width and variable height, variable width and variable height, and irregular special shapes with curved and inclined variable widths; multi-layer tunnel projects are more complex, including various combinations of open sections and covered sections.

[0054] 3. Selection of calculation conditions and determination of main constraint conditions. It is possible to separately select the calculation conditions and corresponding load combinations for the construction stage and the operation stage; it is also possible to select all of them for calculation and analysis to determine the main constraint conditions such as the anti-floating water level and the anti-floating stability safety factor. It is possible to input specified values or select the selected values of similar projects in the project parameter library; adjustments can be made according to needs during the design change process; the adjustment of calculation conditions and main constraint conditions can be carried out for a single segment or multiple selected segments of the urban tunnel, or for all segments of the entire urban tunnel project.

[0055] 4. Conduct anti-floating stability check for the tunnel structure: As Figure 3 shown, based on the anti-floating calculation form data, selected calculation conditions and constraint conditions in the previous steps, that is, considering the combined action of the structural self-weight and anti-floating piles in the calculation, not considering the side wall friction resistance of the structure, call the calculation module in the system to conduct anti-floating stability check for the tunnel structure. Specifically, based on the check of each segment of the tunnel, further joint analysis of the connected segments and comprehensive analysis of all segments of the entire tunnel are carried out.

[0056] The specific steps for conducting anti-floating stability check for the tunnel structure and calculating the "buoyancy force F" received by the tunnel segment object structure include:

[0057] First, determine the anti-floating design water level;

[0058] Select the water specific weight value, the water specific weight variable γ w , usually calculated as 9.8 kN / m 3 or roughly taken as 10 kN / m 3 ;

[0059] Calculate the drainage volume of the tunnel segment, define the variable V 排 , and different calculation methods need to be adopted according to different types of the three-dimensional geometric entities of the tunnel segment object. As Figure 6 shown, below the anti-floating design water level, for segments of equal width and height, V 排 can be obtained by multiplying the cross-sectional area by the longitudinal length of the segment; for segments of equal width and variable height, V 排 can be obtained by multiplying the average cross-sectional area at the start and end of the segment by the longitudinal length of the segment; for irregular special-shaped segments of variable width and height and variable-width and curved segments, V 排 can be obtained by using the three-dimensional geometric entity volume query method in engineering design software such as AutoCAD;

[0060] Finally, through the formula: F 浮 = V 排 ×γ w to obtain the accurate value of the buoyancy force.

[0061] Further, in step d, for the anti - floating stability check of the tunnel structure, the specific steps for calculating the "anti - floating force Fk" received by the tunnel segment object structure include:

[0062] First, determine the anti - floating design water level;

[0063] Select the value of the structural unit weight, and the unit weight variable is γ 砼 , for reinforced concrete, it is usually calculated as 25 kN / m 3 ;

[0064] Calculate the self - weight of the tunnel segment structure. Define the self - weight variable G and the structural volume variable V. For different types of the three - dimensional geometric entities of the tunnel segment object, different calculation methods are required. For segments with equal width and height, V can be obtained by multiplying the cross - sectional area by the longitudinal length of the segment; for segments with equal width and variable height, V can be obtained by multiplying the average area of the starting and ending cross - sections of the segment by the longitudinal length of the segment; for irregular special - shaped segments with variable width and height and variable width and bending, V can be obtained by using the three - dimensional geometric entity volume query method in engineering design software such as AutoCAD;

[0065] Through the formula: G = V×γ 砼 Obtain the accurate value of the structural self - weight;

[0066] Select the value of the structural overburden unit weight. When the burial depth is large, there may be more than one layer of overburden, so the unit weight variable corresponding to each layer of overburden is defined as γ i , when the groundwater level passes through a certain layer of overburden soil, the unit weight γ i of this layer of overburden soil is taken as the natural unit weight γ 上 above the anti - floating water level, and the buoyant unit weight γ 下 below the anti - floating water level;

[0067] Calculate the self - weight of the structural overburden. Define the self - weight variable F 覆土 , the overburden volume variable V i ;

[0068] Through the formula: F 覆土 = ∑V i ×γ i Obtain the accurate value of the structural self - weight;

[0069] Finally, through the formula: Fk = G + F 覆土 Obtain the accurate value of the anti - floating force.

[0070] 5. Conduct special calculations for anti - floating treatment measures: such as Figure 4As shown, according to the verification results in the previous step, it is judged whether the anti-floating stability requirements are met. If they are met, the intermediate result data is output and saved to the log file. If not, special calculations are carried out in combination with the project design requirements and the specific anti-floating treatment measures selected by the engineering designers. Specifically, for the selection of "anti-floating piles" or "tensile anchor rods", the number of piles and the pile length need to be calculated. For "outrigger of the bottom slab", the outrigger structure size needs to be calculated. For "balancing weight with top slab capping", the capping thickness value needs to be calculated.

[0071] 6. Visualize the calculation results using graphs and tables. Use the progress bar control in the developed software interface to reflect the overall design calculation situation of the project, and show the total number of segments of the current tunnel project, the number of segments passing the anti-floating verification, and the number of segments failing the anti-floating verification. Use different colors to distinguish the calculation status of each segment, including the current verification, the segments that have been verified, and the segments that have not been verified. Use the table control to display the detailed calculation data of each segment, including the self-weight of the segment, the balancing weight, the buoyancy value, the anti-floating stability coefficient, the tensile force provided by the anti-floating piles, the number of anti-floating piles, the diameter of the anti-floating piles, etc. As Figure 7 、 8 shows the summary table of the anti-floating calculation results of the three main types of urban tunnel segments, namely the open segment, the buried segment, and the pump house.

[0072] 7. Output the main calculation results to a calculation book in a unified format. According to the actual application scenario, take a tunnel segment as an object and output the calculation book format and content including detailed calculation parameter data, intermediate calculation data, and result data according to the requirements of the construction drawing design as follows:

[0073] Calculation Book for Anti-Floating Stability Verification (Segment Unit)

[0074]

System Information

[0075] System Information: Anti-Floating Calculation Analysis Software for Urban Tunnel Engineering

[0076] Current Version: 1.0.1.8

[0077] Current User: Design Institute 2, Tunnel Branch, CCCC Highway Consultants Co., Ltd.

[0078] Current Design: Liu Gang

[0079] Current Review: Yang Shaozhan

[0080] Calculation Time: May 18, 2018

[0081]

Project Information

[0082] Project Information: Heshanshan Tunnel Project

[0083] Tunnel Name: Tunnel Main Line

[0084] Segment Name: Main Line U1

[0085] Starting stake number: K0+680

[0086] Ending stake number: K0+710

[0087] Segment type: U-shaped groove

[0088] Segment length: 30 meters

[0089] Segment burial depth: 3.8 meters

[0090]

Calculation information

[0091] Calculation process result:

[0092] Self-weight: 27.87

[0093] Overweight: 0

[0094] Buoyancy value: 33.0

[0095] Gk / Nw: 0.845

[0096] Anti-floating stability safety factor: 1.05

[0097] Anti-floating stability check result: Not satisfied

[0098] Condition 1 (during construction): Not satisfied

[0099] Condition 2 (during operation): Satisfied

[0100]

Disposal measure information

[0101] Selection of anti-floating disposal measure type:

[0102] Top plate weight addition for anti-floating: Not selected

[0103] Bottom plate overhang: Not selected

[0104] Setting anti-floating piles: Selected

[0105] Setting anti-pulling anchor rods: Not selected

[0106]

Geological information

[0107] Geological information and calculation parameters:

[0108]

[0109]

Calculation information

[0110] Anti-floating stability check result after considering anti-floating disposal:

[0111] Calculation type of anti-floating piles: Friction piles

[0112] Number of anti-floating piles: 6

[0113] Diameter of anti - floating pile: 0.8

[0114] Self - weight: 27.87

[0115] Overweight: 0

[0116] Buoyancy value: 33.0

[0117] Sum of anti - floating bearing capacities Fk: 6.78

[0118] (Gk + Fk) / Nw: 1.05

[0119] Anti - floating stability safety factor: 1.05

[0120] Result of anti - floating stability check: Satisfied

[0121] Condition 1 (during construction): Satisfied

[0122] Condition 2 (during operation): Satisfied

[0123] The embodiment of the present invention also provides an anti - floating calculation system for urban tunnels based on multi - source design data fusion, as Figure 9 shown, including:

[0124] An acquisition module, used to acquire multi - source data for the design of the current urban tunnel project. For detailed content, refer to the relevant description of step 1 in the above - mentioned method embodiment.

[0125] A first processing module, used to calculate the standardization of the parameter form and data fusion processing. For detailed content, refer to the relevant description of step 2 in the above - mentioned method embodiment.

[0126] A second processing module, used to calculate the condition selection and determination of main constraint conditions. For detailed content, refer to the relevant description of step 3 in the above - mentioned method embodiment.

[0127] A third processing module, used to perform anti - floating stability check on the tunnel structure. For detailed content, refer to the relevant description of step 4 in the above - mentioned method embodiment.

[0128] A fourth processing module, used to perform special calculations for anti - floating treatment measures. For detailed content, refer to the relevant description of step 5 in the above - mentioned method embodiment.

[0129] A fifth processing module, used to visualize the calculation results in graphs and tables. For detailed content, refer to the relevant description of step 6 in the above - mentioned method embodiment.

[0130] A sixth processing module, used to output the main calculation results to a calculation book in a unified format. For detailed content, refer to the relevant description of step 7 in the above - mentioned method embodiment.

[0131] The content of the present invention is not limited to the examples listed. Any equivalent transformation of the technical solution of the present invention made by those of ordinary skill in the art by reading the specification of the present invention is covered by the claims of the present invention.

Claims

1. Urban tunnel anti - floating calculation method based on multi - source design data fusion, characterized in that, the steps are as follows: 1) Obtain multi - source data for the design of the current urban tunnel project: Overall data, geological exploration data, road geometric design data, tunnel structure design data; 2) Standardize the calculation parameter form and perform data fusion processing: Pre - process the obtained design data, and generate corresponding structured data forms according to the standard data template respectively; Based on the standardized design parameter form, fuse from the perspective of the anti - floating checking calculation process and the mechanism of the tunnel structure's self - weight resisting buoyancy to form a data form for urban tunnel anti - floating calculation; 3) Select calculation conditions and determine main constraint conditions: Select different calculation conditions in the construction stage and operation stage, and determine the main calculation constraint conditions such as the anti - floating water level and the anti - floating stability safety factor; 4) Check the anti - floating stability of the tunnel structure: Based on the data in the anti - floating calculation form, the selected calculation conditions and constraint conditions, call the anti - floating calculation system to check the anti - floating stability of the tunnel structure; 5) Conduct special calculations for anti - floating treatment measures: According to the checking results in step 4), judge whether the anti - floating stability requirements are met. If met, output the intermediate result data and save it to the log file. If not met, conduct special calculations for the anti - floating treatment measures; 6) Visualize the calculation results with graphics and tables: Use progress bars and various graphic controls in the system interface to display the calculation status and calculation process data; Use tables to display detailed calculation data; 7) Output the main calculation results to a calculation book in a unified format: According to the calculation parameters, calculation conditions, constraint conditions and calculation intermediate logs selected during the urban tunnel anti - floating calculation process according to the above - mentioned method steps, and according to the actual application scenario, output a calculation book containing detailed calculation data and results in two formats, namely preliminary design and construction drawing design, with the segment or the entire tunnel as the object.

2. The urban tunnel anti - floating calculation method based on multi - source design data fusion according to claim 1, characterized in that, in step 1), the overall data, geological exploration data, road geometric design data and tunnel structure design data are from different types of format files generated by multiple heterogeneous design systems. The overall data, geological exploration data, road geometric design data and tunnel structure design data are obtained through the traditional handover document list during the design process, including project - related information files, survey and design drawings, three - dimensional geographic information models, and building information models.

3. The urban tunnel anti - floating calculation method based on multi - source design data fusion according to claim 1 or 2, characterized in that, in step 2), the structured data form specifically includes a project overall information table, a geological exploration information table, a road geometric design information table, and a tunnel structure design table.

4. The urban tunnel anti - floating calculation method based on multi - source design data fusion according to claim 3, characterized in that, In step 6), visualize the calculation results using graphs and tables: Use the developed interface to reflect the overall design calculation of the project with a progress bar, showing the total number of segments in the current tunnel project, the number of segments passing the anti-floating check, and the number of segments failing the anti-floating check; distinguish the calculation status of each segment with different colors, including the current check, the segments that have been checked, and the segments that have not been checked; display the detailed calculation data of each segment in a table, including the self-weight of the segment, the counterweight, the buoyancy value, the anti-floating stability coefficient, the uplift force provided by the anti-floating piles, the number of anti-floating piles, and the diameter of the anti-floating piles.

5. The system adopted by the urban tunnel anti-floating calculation method based on multi-source design data fusion according to claim 1, characterized in that it includes: an acquisition module for acquiring multi-source data for the design of the current urban tunnel project; a first processing module for calculating the standardization of the parameter form and data fusion processing; a second processing module for calculating the working condition selection and determining the main constraint conditions; a third processing module for performing anti-floating stability checks on the tunnel structure; a fourth processing module for performing special calculations for anti-floating treatment measures; a fifth processing module for visualizing the calculation results using graphs and tables; a sixth processing module for outputting the main calculation results to a calculation book in a unified format.

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