盾构隧道结构三维参数化设计方法及平台研制  

Development of a Three-Dimensional Parametric Design Method and Platform for Shield Tunnel Structures

作　　者：刘新根 蔡荣 刘学增 丁爽[1,2] LIU Xingen;CAI Rong;LIU Xuezeng;DING Shuang(Shanghai Tongyan Civil Engineering Technology Co.,Ltd.,Shanghai 200092,China;Shanghai Engineering Research Center of Detecting Equipment for Underground Infrastructure,Shanghai 200092,China;Suzhou Urban Rail Transit Line One Co.,Ltd.,Suzhou 215000,Jiangsu,China;Civil Engineering Research Center for Information Technology of the Ministry of Education,Tongji University,Shanghai 200092,China)

机构地区：[1]上海同岩土木工程科技股份有限公司,上海200092 [2]上海地下基础设施安全检测与养护装备工程技术研究中心,上海200092 [3]苏州轨道交通市域一号线有限公司,江苏苏州215000 [4]同济大学土木信息技术教育部工程研究中心,上海200092

出　　处：《隧道建设（中英文）》2024年第11期2241-2250,共10页Tunnel Construction

基　　金：国家自然科学基金项目(42277158);上海市科技计划项目(22YF1446100)。

摘　　要：为解决当前盾构隧道三维正向设计地层-结构模型脱节、建模仿真效率低、数据跨系统调用丢失严重等问题,首先,提出基于地层层序全自动界定和子钻孔递归的三维地层建模方法,采用差异化建模技术在不同区域创建差异化三维地层模型;然后,提出基于布尔运算和虚拟钻孔探针的三维地层模型与隧道结构数物模型耦合方法,以及三维地层模型几何边界自动提取与有限元网格重构方法,构建基于三维精细化几何模型二维映射和轮廓拾取的二维自动出图方法;最后,集成盾构隧道结构三维参数化设计方法,开发集三维地层建模分析、结构三维设计、数值分析、自动出图为一体的盾构隧道三维参数化设计平台(FDP-ST3D)。FDP-ST3D已在济南地铁S1线、苏州轨道交通S1线、深圳市妈湾跨海通道工程盾构段、苏通GIL管廊隧道等工程中试点应用,应用表明:该平台数据传递高效准确、复用率高,管片结构二维出图只需要15 min,相比人工出图,设计效率与准确性显著提高。Traditional three-dimensional(3D)forward design for shield tunnels faces challenges such as the disconnect between geological and structural models,low modeling and simulation efficiency,and significant data loss across systems.Thus,the authors propose a 3D stratigraphic modeling method that utilizes automated stratigraphic sequence definition and sub-borehole recursion to enable differentiated geological models for different tunnel regions.This approach includes a coupling method for aligning 3D geological and structural tunnel models through Boolean operations and virtual borehole probes,alongside methods for automated extraction of geometric boundaries and finite element mesh reconstruction.A two-dimensional(2D)automatic mapping process based on 3D refined geometrical models and contour picking is also introduced.The developed unified platform integrates these methods into a comprehensive shield tunnel 3D parametric design system,termed FDP-ST3D.FDP-ST3D supports 3D geological modeling,structural design,numerical analysis,and automated drawing.Applied successfully in projects including the Jinan metro line S1,the Suzhou rail transit line S1,the shield section of Shenzhen Mawan cross-sea tunnel,and the Sutong GIL utility tunnel,FDP-ST3D demonstrates high data transfer accuracy and reusability,reducing 2D tube sheet drawing time to only 15 min,which significantly improves the design efficiency and accuracy compared with the manual work.

关 键 词：盾构隧道管片 三维参数化 地质模型 数字数值 二维出图 

分 类 号：U452.2[建筑科学—桥梁与隧道工程]