Through the four themes of "smart production", "smart management", "safety monitoring", and "smart display", real-time, comprehensive, and intelligent monitoring and management of "man, machine, material, method, environment" and other production elements, To realize the interconnection and intercommunication, data application, collaborative sharing, and comprehensive display between businesses, and build a multi-party collaboration, multi-level linkage, management pre-control, integrated and efficient intelligence with progress as the mainline, cost as the core and project as the main body The production and operation management and control platform guarantees the smooth realization of project quality, safety, progress, and cost construction goals.
Based on in-depth analysis of the existing bridge structure monitoring data, combined with the current status of the bridge and previous inspection reports, a bridge structure health monitoring and safety warning system (including the existing work performance survey with sensors, the additional monitoring of temperature, humidity, stress, and strain, displacement, etc. to the key parts of the bridge where abnormalities occur), to realize the intelligent operation management and early warning monitoring of the bridge structure, and to improve the level of road traffic safety operation and operation efficiency. Improve the service level of transportation infrastructure and provide data support for bridge management departments to respond to emergencies.
With new concepts, new technologies, and new equipment as the guarantee, and with the new concepts of the full life cycle, digital twinning, and integration of operation and maintenance, we will build a smart highway system with unified services, comprehensive management, and interconnection, and create a GIS-based smart highway system +BIM's full life cycle management integrated platform, 3 types of application sets for construction, management, and maintenance, Internet of Things, GIS+BIM digital twin, data exchange and sharing, artificial intelligence and algorithms, 5 support for big data analysis, N-type perception The overall framework of “1+3+5+N” smart transportation.
With infrastructure structure monitoring data simulation analysis and digital twins as the key areas, with the integrated simulation analysis of operation and maintenance and operation monitoring data during the construction and operation of smart transportation as the starting point, thousands of bridges in the province are monitored and data analyzed.
Establish a two-dimensional urban surface model (unstructured polyhedral grid), an underground drainage network model (multi-stage pipe sections), and an urban inland river model, and form a coupled simulation system through interfaces. The basic equations include shallow water wave equations, Saint-Venant equations, etc., through space and time discretization to simulate the evolution of urban-scale rainwater. Use the geographic information system to construct the spatial topological information of the urban water system, combine historical data and measured data, set the model's attribute characteristics, boundary conditions, hydrological and hydrodynamic parameters, etc., and finally perform the calibration verification of the model to ensure the accuracy of the simulation results. To the greatest extent possible close to the actual evolution of urban rainwater.
Use the new generation of information technology such as the Internet of Things, cloud computing, big data, digital twins, and simulation. Real-time monitoring of pipe network pressure, flow, water quality, and liquid level, early warning of emergencies such as pipe bursts, leaks, and water quality exceeding standards, and building urban "water lifelines" to improve water pipe network operation and maintenance management efficiency.
The comprehensive pipe gallery has a large height difference, and there are a large number of 10Kv high-voltage power grids and communication pipelines around it. There are many problems such as water pipe cracking, uneven settlement, and horizontal displacement. The Yunlu Digital Twin Platform is used to monitor the structural health of the concrete pipe gallery and auxiliary pipelines to ensure their safe and stable operation. Through real-time parameter monitoring, the internal environment of the pipe gallery and the long-term changes of the water pipeline can be grasped in more detail, to provide timely and effective feedback on the safety status of the pipe gallery.
The unloading of the truss conversion structure with a total bearing capacity of 46,500 tons in the second phase of the National Convention Center is currently the largest steel truss conversion structure in China. "Crutch" support, to achieve "autonomous standing".
To ensure the structural safety of the steel structure during the unloading process, Yunlu Technology provided a real-time monitoring platform for the entire process of the unloading of the structure and continued to provide high-quality real-time monitoring services during the entire unloading process. When monitoring points and data permit, second-level structural analysis based on monitoring real-time data can be realized. Therefore, the changes in monitoring data can be analyzed in real-time to obtain changes in the internal forces and displacements of the entire structure, and help the project headquarters understand the redistribution of internal forces of the entire roof steel frame caused by the incomplete synchronization of the unloading points during the specific construction process. Find out whether there are abnormally changed components and their locations, and judge whether it is safe or not.
At 2 a.m. on December 2, 2018, the "Three Lines and Four Bridges" project, the main throat of Beijing Daxing International Airport Expressway, completed the highly difficult turning movement across the Beijing-Shanghai Railway after 90 minutes of continuous operation at night. The lines are accurately connected. Major news network media such as CCTV and China News Network paid attention to and reported this successful rotation.
As the real-time monitoring party for the rotating construction, Yunlu Technology has overcome several technical problems. Within the sub-millimeter accuracy range, it has ensured the safety and progress of the construction through engineering intelligence, and successfully assisted the rotating construction.