矢栅混合的室内三维导航网络模型

With the urbanization progress of our country developing three dimensionally both over ground and underground, the indoor evacuation analysis becomes the critical node in the chain of emergency responding and mitigation operations. Current indoor navigation models lack of the ability to demonstrate spatial-temporal status of the navigation space, and leads to the bottleneck of optimizing egress time, locomotion speed and travelling distance. Thus, by addressing the need of indoor emergency evacuation, this research proposes a 3D indoor navigation model. This model implements the fusion of geo-metric attributes and topological relationships, and accurately depicts the holding capacity and connection status of navigation grids. Besides, this model also demonstrates the influence of hazard spreading flexibly on multi-levels of indoor navigation space, and designs a method to dynamically demonstrate the network status of the indoor vector-raster fused model. At last, a well-designed experiment for selected complex buildings is planned to mathematically simulate and carry out drills to validate and improve the proposed model. The output of this research is envisioned to improve the evaluation of the indoor evacuation plans and the design of the indoor egress passages.

随着城镇化同时向地上和地下的大型立体空间发展，室内通行空间的疏散优化成为大型建筑物应急响应和防灾减灾的关键问题。现有室内网络模型缺乏对通行空间实时状态的表达能力，难以有效优化人员撤离时间、速度和距离等指标。针对以上瓶颈，本课题系统研究提出面向应急疏散的室内三维网络模型，实现对应的拓扑网络和米制几何信息融合，准确刻画建筑物通行网格的空间承载能力及连通状态；顾及灾害蔓延对于室内通行空间疏导能力的多层次影响规律，设计实现矢栅混合的室内通行网络多维动态表达方法；选择典型综合教学大楼，采用虚实结合的方式验证并优化所提出的模型与方法。课题成果将为室内人员应急疏散模拟评估以及大型建筑室内疏散通道设计提供重要的科学依据。