BIM数据驱动的地铁车站土石方精细算量研究

A BIM Data-driven Fine Calculation Scheme for Earthwork of Metro Stations

针对地铁工程施工开挖流程、复杂地层空间分布的特点,基于BIM数据驱动,通过Revit二次开发提出通用的地质地层识别解析方法和车站围护结构特征识别方案;采用Delaunay三角网和反距离加权插值方法,实现钻孔与地层的参数化生成与管理;考虑不同算量需求进行结构化数据处理与算量输出、构建集成化平台,实现了标准化、智能化的地铁车站土石方精细算量流程,相较传统算量方法在效率与准确性上均有所提升。

Considering the excavation process and the complex geological conditions in metro station construction,a BIM data-driven general scheme for geological stratum identification and station enclosure structure feature recognition is proposed with Revit secondary development.Using Delaunay triangulation and inverse distance weighted interpolation method,parameterized generation and management of boreholes and strata are realized.Considering different calculation requirements,structured data processing and calculation output are carried out and an integrated platform is established.Thus,a standardized and intelligent fine calculation process for earthwork of metro stations is achieved.Compared to traditional calculation methods,the efficiency and accuracy are both improved.