铁路站场排水设施数字化关联设计方法研究

Research on digital linkage design method of drainage in railway station

铁路站场排水设计成果需要从平面、纵面与横断面3个不同的维度进行表达,排水设计是否合理,取决于排水设备在平纵横三者之间能否协调统一。因此,排水设备的设计过程往往需要反复调整平面、纵面与横断面,过程繁琐。基于此,在铁路站场数字化设计系统排水设计中提出分区与最小影响域的概念,将水沟作为站场分区设备,通过数字化设计系统中建立的设备间联动设计语义模型与更新算法,检索水沟变动时的最小影响域,对最小影响域内的设备实时联动更新,并实现设计数据在平面和横断面之间的双向联动及排水设备的快速更新。开发的软件原型系统,已在站场设计实例应用中得到验证。

The design results of drains in railway station need to be presented in three different dimensions:plane,vertical and cross-section.The rationality of drainage design is determined by the congruity among these three respective aspects.The needs to revise the plane,vertical and cross-section design repeatedly have been brought up during the design procedure of drainage equipment.Therefore,the concepts of segments and minimum domain of influence are proposed in the drainage design of railway station digital design system,in which the drains were tagged as the segmental identification equipment.With the semantic model and updating algorithm for corresponding equipment design established within the digital design system,we were able to query the minimum domain of influence for each change happened to any drain,thereby updating other equipment instances within this area correspondingly,and achieving the bilateral correspondence of design data between plane and cross-section design,while updating the drainage equipment efficiently.The software prototype has been developed and validated in applications of railway station design with real world cases.