基于WebGL的斜切式洞门数字建模与工程应用

Digital Modeling and Engineering Application of WebGL-based Slanting-cut Tunnel Portal

针对隧道斜切式洞门BIM模型创建与应用效率低、可视化依赖已有建模平台的问题,提出基于WebGL的数字化建模方法。分析总结隧道斜切式洞门基本结构组成与特征,基于点-线-面-体的实体生成理论,利用数学公式完成对隧道斜切式洞门BIM模型的参数化建立;依托WebGL技术实现隧道斜切式洞门BIM模型的在线浏览。同时,研究隧道斜切式洞门BIM模型的辅助施工方法,拓展隧道斜切式洞门BIM模型的工程应用场景。结果表明,该方法可辅助设计人员高效完成对隧道斜切式洞门的正向设计,提高隧道斜切式洞门BIM模型的创建效率与实用性。

Aiming at the problems of low efficiency in creating and applying BIM models for slanting-cut tunnel portals and dependence on existing modeling platforms for visualization,this paper proposes a WebGL-based digital modeling method.This paper analyzes and summarizes the basic structural composition and characteristics of slanting-cut tunnel portal,and establishes the parametric BIM model for slanting-cut tunnel portal by using mathematical formulas based on the solid generation theory of point-line-plane-solid;realizes online browsing of BIM model for slanting-cut tunnel portal relying on WebGL technology.At the same time,this paper studies the auxiliary construction method of BIM model for slanting-cut tunnel portal,and expands the engineering application scenario of BIM model for slanting-cut tunnel portal.The results show that this method can assist designers to efficiently complete the forward design of slanting-cut tunnel portal and improve the creation efficiency and practicability of BIM model for slanting-cut tunnel portal.