基于语义网的电网工程BIM模型完备性审查方法

Semantic web-based BIM model integrity checking approach for power grid projects

工程各个阶段项目参与各方之间的信息供给和信息需求平衡,是建筑信息模型(BIM)技术在项目全生命周期管理最大程度发挥作用的重要保证。在交付需求标准化方面,尽管我国从国家到地方再到企业相继出台了诸多标准,但尚缺少高效的完备性审查手段以保证交付双方及时有效进行项目信息交付。此外,当前针对各阶段交付模型信息审查的常规手段是人工校验和机器硬编码审核,二者分别存在人工成本高且容易漏判和灵活性不足,且更新困难的问题。考虑到语义网概念及相关技术在知识组织和管理方面的技术优势和应用情况,结合电网工程现有数字化交付标准成果,提出一种基于语义网的电网工程BIM模型完备性审查方法:利用SKOS建立完备性审查本体、审查对象模型本体;对交付标准中审查知识和实际模型信息进行图谱化;二者通过特定关系进行关联,并在此基础上通过SPARQL检索语言实现自动化完备审查。最后通过案例证明此方法的有效性,并对其他领域工程项目交付完备性审查能够产生借鉴价值。

Ensuring a balance between information supply and information demand among all stakeholders at each project stage is crucial for harnessing the full potential of building information modeling technology in project life cycle management.While many standards have been established at national,local,and corporate levels to standardize delivery requirements,there remains a lack of efficient model integrity checking approach to facilitate participants to deliver project information in a timely and effective manner.Currently,the conventional means of checking model information for each stage of delivery was manual and machine hard-coded.However,they suffered from high labor costs,missed judgments,and limited flexibility for updates.Considering the technical advantages and applications of the semantic web concept and related technologies in knowledge organization and management,and combining the results of existing digital delivery standards for power grid engineering,a semantic web-based BIM model integrity checking approach was proposed.It was composed of three parts:1)establishing integrity checking ontology and model to-be-checked ontology using SKOS;2)instantiating knowledge in the delivery standard and actual model information to the knowledge graph;3)correlating the two through specific relationships and automating integrity checking on this basis through SPARQL.Finally,the validity of this method was demonstrated through case studies,showcasing its applicability in engineering project delivery integrity checking in other fields.