基于背包式三维激光扫描技术的城市地下管廊三维建模实现

Realization of 3D Modeling of Urban Underground Pipe Gallery Based on Backpack 3D Laser Scanning Technology

管廊能够将支持城市运转的多种管线集中有序敷设,是城市管线建设的新模式。随着管廊建设的快速发展,如何快速、精准构建其三维模型为管廊信息化管理服务,成为一个新的课题。本文介绍了基于徕卡Pegasus:Backpack背包式三维激光扫描系统快速获取昆明主城区某地下管廊点云数据,并基于点云数据采用分项建模的方法构建管廊精细三维模型的过程。文章针对作业过程中的数据采集模式、数据处理、模型建立、模型输出等相关内容进行了研究分析,为城市地下空间设施的信息化管理提供了一种有效的技术方法。

The Urban underground pipe gallery can lay a variety of pipelines to support the operation of the city in a centralized and orderly manner,which is a new mode of urban pipeline construction.With the rapid development of the urban underground pipe gallery construction,how to quickly and accurately build its three-dimensional model to serve the information management of the urban underground pipe gallery has become a new topic.This paper introduces the process of quickly acquiring the point cloud data of an underground pipe gallery in the main city of Kunming based on the Leica Pegasus:Backpack,and constructing the fine 3D model of the urban underground pipe gallery based on the point cloud data.This paper studies and analyses the data acquisition mode,data processing,model establishment and model output in the process of operation,which provides an effective technical method for the information management of urban underground space facilities.