Digital twin system for incremental launching construction monitoring

Abstract

The invention relates to a digital twin system for incremental launching construction monitoring, which comprises a physical construction site comprising an incremental launching construction subsystem and a sensing subsystem, and the sensing subsystem is used for collecting construction data in real time and transmitting the construction data to a virtual construction space; virtualizing a construction space, constructing a high-fidelity dynamic simulation model based on a BIM technology, fusing geometric, physical, behavior and rule elements, and supporting dynamic high-precision simulation of a construction process; the twin data service platform is used for processing multi-source construction data and realizing full-link circulation of the data; the interaction feedback connection module integrates a modern information transmission technology and a precise detection technology, and realizes efficient information interaction among a physical construction site, a virtual construction space and an application service system; and the application service system is used for realizing simulation and interactive management of incremental launching construction based on BIM and digital twinning technologies.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge engineering construction monitoring, and in particular to a digital twin system for incremental launching construction monitoring. Background Art

[0002] Incremental launching construction is a bridge construction method where bridge segments are prefabricated behind the abutment and pushed forward one by one until the bridge is in place. Traditional bridge incremental launching construction methods mainly rely on two-dimensional drawings or static three-dimensional models, which have problems such as insufficient real-time performance, isolated data, and monitoring limitations. For example, two-dimensional drawings are not intuitive when showing complex construction scenarios, and static three-dimensional models cannot dynamically reflect the state changes during the construction process, making it difficult to detect abnormal situations in a timely manner. Existing digital twin systems are usually of general design and are mostly applicable to static monitoring or post-analysis, and cannot meet the high requirements for real-time dynamic updates, high-fidelity simulation, and construction adjustment during the bridge incremental launching construction process.

[0003] Chinese Patent Application Publication No. CN118394984A provides a method and system for visualizing the incremental launching progress of a steel truss girder based on digital twins. Aiming at the problem in the prior art that the visualization of the incremental launching progress of a steel truss girder requires manual updating of the bridge main structure model and lacks an automatic updating mechanism, it uses the incremental launching displacement monitoring data of the steel truss girder to drive the model to automatically change in real time, realizing digital twins in the incremental launching construction progress of the steel truss girder and improving the efficiency and accuracy of construction management. However, the above application does not consider the possible error problems in displacement measurement during incremental launching, which is likely to affect the accuracy of digital twins when the error impact is large.

[0004] In summary, there is currently a lack of a digital twin system to solve or partially solve the aforementioned problems. Summary of the Invention

[0005] The purpose of the present invention is to overcome the defects of the above-mentioned existing technologies and provide a digital twin system for incremental launching construction monitoring to solve or partially solve the problem that the possible error problems in displacement measurement during incremental launching are not considered, which is likely to affect the accuracy of digital twins when the error impact is large.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] The present invention provides a digital twin system for incremental launching construction monitoring, characterized by including:

[0008] A physical construction site, including an incremental launching construction subsystem and a sensing subsystem, where the sensing subsystem is used to collect construction data in real time and transmit it to the virtual construction space;

[0009] Virtual construction space, which constructs a high-fidelity dynamic simulation model based on BIM technology, integrates geometric, physical, behavioral and rule elements, and realizes dynamic high-precision simulation of the construction process;

[0010] Twin data service platform, which is used to process multi-source construction data and realize the full-link transfer of data;

[0011] Interactive feedback connection module, which integrates information transmission and detection, and realizes information interaction between the physical construction site, virtual construction space and application service system;

[0012] Application service system, which realizes the simulation and interactive management of incremental launching construction based on BIM and digital twin.

[0013] As a preferred technical solution, the sensing subsystem includes Beidou satellite monitoring equipment and total station, which are used to monitor the position, rigid body attitude and incremental launching displacement of the beam segment in real time.

[0014] As a preferred technical solution, the BIM model of the virtual construction space is constructed based on FreeCAD software, and the modeling is completed through the process of drawing - key section sketch - lofted solid, realizing the dynamic update of model parameters.

[0015] As a preferred technical solution, the twin data service platform includes:

[0016] Data transmission and conversion module, which realizes the access and format conversion of multi-source data through API interface and batch import;

[0017] Model dynamic update module, which realizes the automatic parameter adjustment of the BIM model through the Python tool chain based on the preset update frequency and strategy;

[0018] Index overrun warning module, which presets the construction safety threshold and conducts real-time analysis and warning on the incremental launching force and beam segment displacement parameters.

[0019] As a preferred technical solution, the application service system includes:

[0020] Incremental launching simulation module, which realizes the dynamic simulation of beam segment prefabrication, incremental launching equipment operation and incremental launching process through three-dimensional visualization;

[0021] Multi-angle display module, which realizes multi-view real-time monitoring and construction process animation playback;

[0022] Interactive management module, which generates construction adjustment plans based on real-time monitoring data and feedbacks them to the physical construction site.

[0023] As a preferred technical solution, the realization of the full-link data flow interface includes:

[0024] Establish a two-way data channel between the actual construction monitoring system and the BIM software;

[0025] Realize data synchronization between the BIM model, the information display module, and the early warning module;

[0026] Support the standardized processing and fusion of multi-source heterogeneous data.

[0027] As a preferred technical solution, the high-fidelity dynamic simulation model includes:

[0028] A geometric model for reflecting the three-dimensional spatial form of the beam segment and the jacking equipment;

[0029] A physical model for simulating the mechanical behavior and deformation characteristics during the construction process;

[0030] A behavior model for modeling the time sequence logic and operation rules of the construction steps;

[0031] A rule model for integrating construction specifications and safety standards.

[0032] As a preferred technical solution, real-time monitoring and adjustment are achieved through the following methods:

[0033] Real-time access to sensor data and mapping it to the virtual construction space;

[0034] Dynamically update the model parameters and synchronously update the visualization interface;

[0035] In response to the monitoring parameters exceeding the safety threshold, trigger an early warning and generate optimization suggestions.

[0036] As a preferred technical solution, it also includes an error correction process:

[0037] Realize joint positioning through Beidou satellite monitoring and total station measurement;

[0038] Verify the measurement accuracy through experimental data and establish an error correction model;

[0039] Perform real-time correction on the displacement data in the virtual construction space.

[0040] As a preferred technical solution, the software architecture of the system realizes the connection between modules through the Python implementation tool chain, and realizes cross-platform data interaction and function extension.

[0041] Compared with the prior art, the present invention has at least one of the following beneficial effects:

[0042] (1) Realize high-precision real-time monitoring: The present invention realizes real-time monitoring of beam segment position, rigid body posture and jacking displacement by adopting Beidou satellite monitoring equipment and total station for joint measurement, and controls the measurement error of the whole jacking process within 2%, thereby ensuring the accuracy of construction data and providing a reliable basis for dynamic simulation.

[0043] (2) Realize high-fidelity dynamic simulation: The present invention constructs a comprehensive model by integrating geometric, physical, behavioral and rule elements in a virtual construction space, supports dynamic updating of BIM models, accurately simulates key parameters in the construction process, and truly reflects the real-time status of the physical construction site.

[0044] (3) Realizing full-link data interconnection: The present invention formulates a data flow interface solution to achieve multi-source data docking through API interface and batch import, opening up the full-link data flow of physical construction sites, virtual models and application service systems, and supporting the efficient integration and processing of multi-source heterogeneous data. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 Schematic diagram of a digital twin system for monitoring jacking construction in an embodiment. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0047] In response to the problems existing in the aforementioned prior art, the present embodiment provides a digital twin system for jacking construction monitoring, which mainly includes a physical construction site, virtual construction, a twin data service platform, an interactive feedback connection and an application service system.

[0048] (1) Physical construction site: It consists of a top-pushing construction system and a sensor system. The sensor system transmits the collected construction data to the digital construction space, so that the digital construction can not only reflect the simple geometric physical model, but also support dynamic high-precision real-time simulation, becoming a comprehensive high-fidelity model that integrates geometric, physical, behavioral, and rule elements, and can truly reflect the accurate status of the physical construction site.

[0049] (2) Interactive feedback connection: Integrate modern information transmission technology and precise detection technology to achieve efficient information interaction between physical construction sites, virtual construction and application service systems.

[0050] (3) Application service system: Use BIM and digital twin technology for top-pushing simulation and interactive management.

[0051] Regarding the layout of the hardware measurement points of the system, in this embodiment, the Beidou chassis is used to remotely and real-time monitor the position and rigid body attitude of the beam, so as to achieve a real-time and accurate understanding of the state of the jacking construction process.

[0052] Regarding the software architecture of this embodiment, the digital twin system is generally divided into a data transmission and conversion module, a BIM module, a model dynamic update module, an index overrun warning module, and a real-time effect rendering and information display module. A tool chain software written in Python is used to connect between the modules.

[0053] The system construction process includes:

[0054] (1) Establish a digital twin platform, including modules such as beam segment prefabrication, jacking equipment operation, and beam segment jacking process.

[0055] (2) Use existing 3D modeling software to construct 3D models of beam segments and jacking equipment, and import them into the simulation platform to set construction steps and operation processes.

[0056] Precisely simulate the construction process: Simulate the jacking process of the beam segment, and display the displacement, force conditions, etc. of the beam segment.

[0057] Multi-angle and all-round display includes:

[0058] (1) Set multiple viewpoints to real-time display different angles of the construction process.

[0059] (2) Through the animation playback function, realize the dynamic display of the construction process.

[0060] The real-time monitoring and adjustment process includes:

[0061] (1) Access sensor data to real-time monitor parameters such as jacking force and beam segment displacement.

[0062] (2) When abnormalities are found, adjust the construction plan in a timely manner through the platform to ensure construction safety and quality.

[0063] After comparison and selection, Freecad is selected as the BIM modeling and display software. Use Freecad software to establish the BIM model of the project, and follow the process of "drawing - key cross-section sketch - lofted solid" for modeling.

[0064] Formulate a data flow interface plan to achieve data docking between the actual construction monitoring system, BIM software, information display module, and warning module. Realize data transmission through API interfaces and batch import methods.

[0065] Based on the real-time collected construction data, set the model update frequency and strategy. Use the update module written in Python to achieve automatic adjustment and update of model parameters.

[0066] Through Beidou satellite monitoring and total station measurement methods, ensure that the measurement error during the entire jacking process is controlled within 2%. Verify the measurement accuracy through experimental data and perform error correction in the model.

[0067] Compared with the traditional construction plan and the existing digital twin system, this method has the following technical advantages:

[0068] (1) A digital twin system designed specifically for bridge jacking construction, which realizes real-time high-precision monitoring and error correction through Beidou monitoring and total station technology, effectively making up for the deficiency of the real-time performance of the traditional plan.

[0069] (2) The system design integrates high-fidelity dynamic simulation functions of geometric, physical, behavioral, and rule elements, and can accurately reflect the key dynamic parameters (such as force, displacement, etc.) during the jacking construction process.

[0070] (3) A complete data flow interface is constructed, realizing the full-link interconnection of the physical construction site, virtual model, and application service system, and supporting the efficient fusion and processing of multi-source data.

[0071] (4) The system has abnormal detection and real-time warning functions. Combining with the dynamic update model and the index overrun warning module, it significantly improves the safety and controllability of the construction.

[0072] As mentioned above, it is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A digital twin system for jacking construction monitoring, characterized in that Including: The physical construction site, including the jacking construction subsystem and the sensing subsystem, where the sensing subsystem is used to collect construction data in real time and transmit it to the virtual construction space; The virtual construction space, which constructs a high-fidelity dynamic simulation model based on BIM technology, integrates geometric, physical, behavioral, and rule elements, and realizes the dynamic high-precision simulation of the construction process; The twin data service platform, which is used to process multi-source construction data and realize the full-link flow of data; The interactive feedback connection module, which integrates information transmission and detection, and realizes information interaction between the physical construction site, the virtual construction space, and the application service system; The application service system, which realizes the simulation and interactive management of jacking construction based on BIM and digital twin.

2. The digital twin system for incremental launching construction monitoring according to claim 1, characterized in that, The sensing subsystem includes Beidou satellite monitoring equipment and total station, which are used to monitor the position, rigid body attitude, and jacking displacement of the beam segment in real time.

3. The digital twin system for jacking construction monitoring according to claim 1, characterized in that, The BIM model of the virtual construction space is constructed based on FreeCAD software, and the modeling is completed through the process of drawing - key cross-section sketch - lofted solid, realizing the dynamic update of model parameters.

4. The digital twin system for incremental launching construction monitoring according to claim 1, wherein The twin data service platform includes: The data transmission and conversion module, which realizes the access and format conversion of multi-source data through API interfaces and batch import; The model dynamic update module, which realizes the automatic parameter adjustment of the BIM model through the Python tool chain based on the preset update frequency and strategy; The index overrun warning module, which presets the construction safety threshold and conducts real-time analysis and warning on the jacking force and beam segment displacement parameters.

5. The digital twin system for incremental launching construction monitoring according to claim 1, characterized in that, The application service system includes: The jacking simulation module, which realizes the dynamic simulation of beam segment prefabrication, jacking equipment operation, and jacking process through three-dimensional visualization; The multi-angle display module, which realizes multi-perspective real-time monitoring and construction process animation playback; The interactive management module, which generates construction adjustment plans based on real-time monitoring data and feedbacks them to the physical construction site.

6. The digital twin system for incremental launching construction monitoring according to claim 1, characterized in that, The realization of the full-link data flow interface includes: Establishing a two-way data channel between the actual construction monitoring system and the BIM software; Realizing data synchronization between the BIM model, the information display module, and the warning module; Supporting the standardized processing and integration of multi-source heterogeneous data.

7. The digital twin system for incremental launching construction monitoring according to claim 1, characterized in that The high-fidelity dynamic simulation model includes: The geometric model, which is used to reflect the three-dimensional spatial form of the beam segment and the jacking equipment; The physical model, which is used to simulate the mechanical behavior and deformation characteristics during the construction process; The behavioral model, which is used to model the timing logic and operation rules of construction steps; The rule model, which is used to integrate construction specifications and safety standards.

8. The digital twin system for jacking construction monitoring according to claim 1, characterized in that, Real-time monitoring and adjustment are realized through the following methods: Real-time accessing sensor data and mapping it to the virtual construction space; Dynamically updating model parameters and synchronously updating the visualization interface; In response to the monitoring parameters exceeding the safety threshold, triggering an alarm and generating optimization suggestions.

9. The digital twin system for jacking construction monitoring according to claim 1, characterized in that, It also includes an error correction process: Realizing joint positioning through Beidou satellite monitoring and total station measurement; Verifying the measurement accuracy through experimental data and establishing an error correction model; Performing real-time correction on the displacement data in the virtual construction space.

10. The digital twin system for incremental launching construction monitoring according to claim 1, characterized in that, The software architecture of the system realizes the connection between modules through the Python implementation tool chain, realizing cross-platform data interaction and function extension.

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