基于IFC标准的三维地质模型扩展研究  

Research on IFC-based standard extension for 3D geological model

作　　者：陈国良[1,2,3,4] 吴佳明 钟宇 陈健 陈斌[4] 王永东 CHEN Guo-liang;WU Jia-ming;ZHONG Yu;CHEN Jian;CHEN Bin;WANG Yong-dong(State Key Laboratory of Geomechanics and Geotechnical Engineering,Institute of Rock and Soil Mechanics,Chinese Academy of Sciences,Wuhan,Hubei 430071,China;University of Chinese Academy of Sciences,Beijing 100049,China;Hubei Key Laboratory of Geo-Environmental Engineering,Institute of Rock and Soil Mechanics,Chinese Academy of Sciences,Wuhan,Hubei 430071,China;The Soft Soil Research Center in Ningbo University of Technology,State Key Laboratory of Geomechanics and Geotechnical Engineering,Ningbo University of Technology,Ningbo,Zhejiang 315211,China;Wuhan Metro Group Co.,Ltd.,Wuhan,Hubei 430070,China;Wuhan Zhongdi Linkeage Technology Co.,Ltd.,Wuhan,Hubei 430074,China)

机构地区：[1]中国科学院武汉岩土力学研究所岩土力学与工程国家重点实验室,湖北武汉430071 [2]中国科学院大学,北京100049 [3]中国科学院武汉岩土力学研究所湖北省环境岩土工程重点实验室,湖北武汉430071 [4]宁波工程学院岩土力学与工程国家重点实验室宁波工程学院工程软土实验中心,浙江宁波315211 [5]武汉地铁集团有限公司,湖北武汉430070 [6]武汉中迪联创科技有限公司,湖北武汉430074

出　　处：《岩土力学》2020年第8期2821-2828,共8页Rock and Soil Mechanics

基　　金：湖北省技术创新重大项目(No.2017ACA186);宁波市公益类科技计划项目(No.2019C50012);国家重点基础研究发展计划(973)项目(No.2015CB057905)。

摘　　要：岩土工程信息化迫切需要加强大数据集成共享和多专业协同合作,BIM技术在工程建设领域的成功经验给我们以启示,可将BIM技术应用于岩土工程信息化建设,但是当前存在的主要问题是地质模型与BIM模型数据标准不统一。为了解决这个问题,提出了地质模型采用BIM数据标准IFC的思路。采用IFC实体扩展及属性集扩展模式,建立了面向三维地质模型的扩展模型IFC-3DGeoMdl。利用已有的IFC对象类型,派生相应的地质物理实体以及地质空间结构实体,给出地质物理实体的空间表达形式;利用IFC中已有的关系类,定义地质物理实体与空间结构实体的关系;进而,基于IFC中的属性表达方式,实现了地质对象的地层信息与物理力学参数等属性的扩展;最后,给出了创建该模型的具体实现过程,并利用实例验证了该模型的实际应用效果。结果表明,采用该模型,可有效实现岩土工程地质模型与BIM结构模型的集成,从而为深化岩土工程的结构设计、施工等提供有效的地质模型信息。Geotechnical engineering informatization urgently needs to strengthen the integration and sharing of big data and multi-disciplinary cooperation.The successful experience of BIM technology in the field of engineering construction enlightens us to apply BIM technology to development of geotechnical engineering informatization.However,the main problem is that the data standards of geological model and BIM model are not unified.In order to solve this problem,we propose the idea of adopting BIM data standard IFC for geological models.This paper established an extended IFC-3DGeoMdl model by using entity extension and attribute set extension schema for 3D geological models.On account of the existing IFC object types,the model derived the corresponding geological-physical elements and geological-spatial structural elements,and yielded spatial expression forms of geological physical elements.In addition,with the use of the existing relationship classes in IFC,the relationships of geological physical elements and spatial structural elements were defined.Further,based on the attribute expression in IFC,the extension of attributes such as stratigraphic information and physical mechanics parameters of geological elements was realized.Finally,the paper gave a concrete implementation process of modelling,and used the actual engineering examples to verify the practical application of the extended model.The result shows that the model can effectively realize the integration of 3D geological model and BIM structural model,so as to provide effective integration and sharing of geological information for structural design and geotechnical engineering construction.

关 键 词：三维地质模型 BIM IFC 集成共享 IFC-3DGeoMdl 

分 类 号：TU717[建筑科学—建筑技术科学]