Research on multi-attribute 3D geological modeling serving urban underground space development and utilization：A Case Study in Langfang airport economic zone

With the continuous progress of urbanization, the demand for underground space in urban development is constantly increasing, and the development and utilization of urban underground space is attracting increasing attention. Multi-attribute 3D geological modeling is an important technical means to serve the development and utilization of urban underground space. This study takes Langfang Airport Economic Zone as the object. Through innovative grid subdivision technology, distributed-parallel modeling method, and using technologies such as dynamic modeling and three-dimensional model visualization, the facies-controlled modeling technology is introduced into urban geological modeling to conduct research on three-dimensional geological modeling methods. The true three-dimensional visualization expression of attributes such as sediment lithology, engineering bearing capacity, and shear wave velocity in Langfang Airport Economic Zone is realized. The model can intuitively display the geological body and multi-attribute distribution characteristics of underground space, and provide a scientific basis for the planning, design, construction and management of urban underground space. And key issues such as the analysis method of multi-attribute data and the evaluation of the accuracy and reliability of the model are deeply discussed to ensure that the model can truly and accurately reflect the geological conditions of urban underground space and provide strong technical support for the sustainable development of the city.