The Exploration and Practice of 3D Laser Scanning in the Safety Detection of Beijing Bell and Drum Towers

Abstract

In order to make Beijing Bell and Drum Towers' Safety detection and structural stability evaluation, we carried out a three-dimensional laser surveying and mapping of Beijing Bell and Drum Towers. And based on three-dimensional laser point cloud data, carried out flat, vertical, cross-sectional construction mapping of the main architecture, texture mapping, city platform tower wall inclined, tilted of the floor, wall roughness and surface flatness measuring of City platform, deformation detection of large timber structure, skew measurement of stone railing and other comprehensive detection work. It provides a detailed basis for the stability evaluation of the main architecture structure. In practice, explore the ancient architecture integrated application safety Inspection items use three-dimensional laser scanning technology, to carry out deformation measurement, disease testing and Safety detection of technical methods and procedures. At the same time, it also provides a comprehensive and detailed data for the follow-up repair engineering design and current data retention.