沉管隧道管节沉放实时定位测量技术现状分析

摘要

Based on the investigation of immersed tunnels both at home and abroad, this paper analyzes the realtime positioning measurement methods of element immersion. In addition, it introduces the most popular methods, such as the total station, GPS, sonar and mechanical methods, and compares the merits and faults of these methods. Finally, the applicability of each measuring method is discussed.%文章在调研国内外沉管隧道工程实例的基础上对管节沉放实时定位测量方法进行了分析研究,重点介绍了应用较为广泛的几种测量方法,如全站仪法、GPS法、声纳法和机械法的特点、原理及现场应用,并对4种定位测量方法的优缺点进行了比较,给出了每种定位测量方法的适用范围,为以后类似工程定位测量方法的选取提供了参考依据.