Reporter Xiahou Fengchao Correspondent Guan Chao
Recently, the China Construction Industry Association announced the list of results of the 8th Construction Engineering BIM Competition, and the BIM results selected by Jinan Urban Construction Group Corporation, a subsidiary of the Construction Group, "BIM technology and platform application in the design and construction stage of the Yellow River Sports Exhibition and Technology Manufacturing Park (Yellow River Avenue Phase I) in Jinan New and Old Kinetic Energy Conversion Pilot Zone" were rated as Class II achievements.
This achievement is supported by BIM, GIS, AI and 3D laser scanning technologies, which provides a strong guarantee for the project land acquisition and demolition, schedule planning, construction operation safety and project quality, further improves decision-making efficiency, optimizes schedule planning, improves construction operation safety, ensures project quality, and provides strong technical support for the Group's digital transformation.
The first phase of the Yellow River Avenue project is an important part of the high-speed skeleton road network of "three rings, two corridors and twelve shots" planned by Jinan City, and is an important transportation corridor on the north bank of the Yellow River.
In order to ensure that the urban planning adapts to the development needs of the new era, the Yellow River Avenue adopts the form of underground tram laying through the urban core area, which greatly reduces the impact of the separation of plots on both sides, and at the same time co-builds with roads and tunnels, taking into account the strong traffic function, further intensifying the overall spatial layout, saving the aboveground and underground space, and fully improving the urban style and space quality. 
The project is linearly distributed, the scope is large and the partition is many, the site layout is affected by the surrounding environment, how to generate the optimal site layout, make the construction process more economical and efficient, is an important consideration in the construction preparation stage.
On the basis of the real scene model, the construction scope, demolition difficulties, land red lines, transportation routes and other three-dimensional intuitive markings, and the structural model is placed into it to analyze the rationality of the setting of the project department, material and machinery storage area, mixing station, processing plant, construction road, construction area and other parts, optimize the layout, plan to reduce the damage to irrelevant obstacles, trees, etc., and at the same time make the layout of each area reasonable, the shortest transportation distance, perfect function, smooth contact, so as to achieve convenient construction. Manage efficient, cost-saving optimization goals. 
During the construction, the civil BIM model and the BIM node model of the mechanical and electrical part were constructed to improve work efficiency. At the same time, the project uses BIM + foundation pit calculation to verify and optimize the scheme of some complex stress areas, and optimizes the original design scheme by using BIM + deep foundation pit calculation at the station K7 + 560 rainwater pump room, and the original foundation pit support form is changed from two steel supports to the support form of one steel pipe inner support, and the optimization scheme ensures the requirements of the overall construction of the rainwater pump room. 
In the construction stage, VR model roaming, VR safety education, and 3D printing models are used in this project practice. VR roaming and 3D printing models in different ways of observation and experience, so that the construction personnel have a more thorough understanding of the proposed structure, VR safety education with a real immersive experience, simulating accidents and other events to make the educated workers empathize, using the 3D model to visualize the bottom, convenient, fast, intuitive and clear.
At the same time, the BIM platform is used to assist in on-site quality and safety inspections, and for problems, the problem rectification requirements are initiated in the BIM platform, and the process is associated with the project components, and the corresponding model components are directly reversed. After receiving the rectification requirements, the relevant personnel on site will rectify the problem, and after the rectification is completed, the feedback and acceptance will be carried out through the platform to form a complete closed-loop data, and at the same time, the inspection results and the rectification of the problem will be collected to form a chart, and the safety construction firewall will be built in an all-round and multi-dimensional way to ensure the safe and orderly progress of the project.
In the data information management, the engineering drawings and construction process data are uploaded to the BIM construction management platform, and associated with the corresponding components in the system. During the construction process, the relevant data of the components can be viewed at any time through the mobile phone or PC, which is more convenient for the follow-up engineering data management, statistics and archiving, and greatly improves the efficiency of engineering data management; The BIM-based engineering information management module integrates a wide variety of scattered and flat engineering information based on the BIM model to realize the digital management of construction data, the digital acceptance and delivery of projects, the integration of completion data, and the digital archiving of completion models. 
Through the BIM series to deepen the application, the construction period is 38 days ahead of schedule; By integrating BIM technology into the construction process, the cumulative cost savings are 70820,000 yuan; The project continues to carry out BIM professional knowledge training, and a total of 36 people have obtained certificates from the Chinese Graphics Society.
In the next step, Urban Construction Group will keep up with the pace of digital transformation, continue to innovate and change in the field of technology research and development such as BIM achievements, play a leading role in the industry, and make greater contributions to promoting the digital transformation of the construction industry.
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