Research on an Integrated Graphical Model-Based Method for Two- and Three-Dimensional Model Management in Railway Engineering

In response to the numerous challenges present in the current management of railway engineering graphical information, including poor data collaboration among project stakeholders, low information flow, and insufficient correlation between 2D drawings and 3D models, this paper integrates the characteristics of abundant data volume and multidisciplinary aspects in railway engineering graphical information. Drawing upon theoretical foundations such as digital model separation, model lightweighting, and database languages, along with leveraging technologies such as Web Graphics Library (WebGL) - based 3D engines and specialized Engineering Breakdown Structure (EBS) encoding tailored to railway engineering, the paper presents an integrated approach for managing two- and three-dimensional models in railway engineering based on a unified graphical model. This approach is rooted in the use of Globally Unique Identifier (GUID) to tightly associate 2D drawings and 3D models, while also standardizing data formats and sharing protocols. As a result, it significantly enhances the efficiency of project management and collaboration within engineering construction projects, effectively breaking down data silos. The method has been successfully applied to a railway engineering project, offering a reliable and innovative solution for managing its information deliverables.

I. Introduction

In recent years, with the vigorous promotion of emerging technologies such as Building Information Modeling (BIM) in the railway industry in China, the level of digitalization in railway engineering construction has been continuously elevated. People have come to realize the advantages of BIM technology, including its key characteristics: visibility, coordination, simulation, optimization, and producibility [1] . These attributes are seamlessly integrated throughout the entire lifecycle of the project. Jin et al. addressed the issues of short construction period, insufficient design depth, interdisciplinary intersection, and frequent construction quality issues in railway electrical/electronic system engineering construction by introducing BIM technology to support construction management, which can detect and solve problems in advance, avoid repeated processing and material waste, and improve quality and economic benefits [2] . Li et al. studied the technical route for fine management of highway swivel bridge construction based on BIM technology, and applied it in the Chengdu Kunming high-speed railway bridge, bringing huge technical and economic benefits to project management, with good promotion prospects [3] . Li designed a visual monitoring system for railway construction process based on BIM, which has good visual supervision effect and can meet the needs of railway engineering construction supervision [4] . Wang et al. studied the visualization management technology of high-speed railway continuous beam bridge construction process based on BIM, combining construction monitoring with BIM to achieve visualization of construction monitoring [5] .