高级搜索

    基于BIM技术和数值模拟的隧道稳定性分析方法

    An Analysis Method for Tunnel Stability Based on BIM Technology and Numerical Simulation

    • 摘要: 建筑信息模型(BIM)技术为隧道工程实现数字化与智能化提供了基础平台,然而由于其缺少力学分析能力,无法有效预测隧道变形特点、支护效果和破坏失稳过程,限制了该技术在工程项目设计和施工中的应用.结合BIM技术与数值模拟的优势,提出一种BIM技术与数值模拟相结合的自动化联合分析方法.建立了包含不同地层和断层等不良地质体的三维地质实体BIM模型,创建了隧道构件族库,实现了隧道构件沿轴线的自适应布置,提出了一套隧道BIM模型参数化建模方法.通过可视化编程和脚本文件进行二次开发,实现了BIM模型与数值模型的自动转换与计算结果集成.以厦门翔安机场高速公路巷东隧道洞口段开挖工程为案例,对提出的联合分析方法进行了应用与验证,分析了不同施工方案下隧道围岩及支护构件的变形特征.

       

      Abstract: BIM technology provides a fundamental platform for the digitalization and intelligentization of tunnel projects.However,due to its lack of capabilities for mechanical analysis,it is unable to effectively predict the deformation characteristics,support performance,and failure process of tunnels,which limits its application in project design and construction.This study combines the advantages of BIM technology and numerical simulation and proposes an automated analysis method.A three-dimensional geological BIM model containing various strata and fault zones is first developed;a tunnel component library is created;and an algorithm for the adaptive placement of tunnel components along the tunnel axis is proposed.A parametric modeling approach for tunnel BIM models is therefore proposed.Through visual programming and scripting,the automatic conversion between BIM models and numerical models,as well as the integration of calculation results,is achieved.The proposed analysis method is applied and validated in the excavation of the tunnel portal section at the Xiang’an Airport Expressway in Xiamen.The deformation characteristics of the surrounding rock and support components under different construction scenarios are analyzed.

       

    /

    返回文章
    返回